Alpha-hydroxyglutarate (α-HG) is a non-canonical, five-carbon dicarboxylic acid that exists as two enantiomers: (R)-α-HG and (S)-α-HG. It is structurally similar to α-ketoglutarate (α-KG), a key intermediate in the tricarboxylic acid (TCA) cycle, but differs in the presence of a hydroxyl group instead of a keto group at the α-position. Both enantiomers are formed through different metabolic pathways and have distinct roles in cellular processes. (R)-α-HG is produced by the enzyme L-2-hydroxyglutarate dehydrogenase (L-2-HGDH) and is involved in the metabolism of L-2-hydroxyglutarate, an intermediate in the conversion of L-lysine to α-ketoadipate. (S)-α-HG, on the other hand, is generated by the enzymatic activity of the mitochondrial enzyme α-ketoglutarate dehydrogenase (α-KGDH) and is involved in the TCA cycle. (S)-α-HG can also be produced through the reduction of α-KG by the enzyme NADPH-dependent α-ketoglutarate reductase. Both (R)-α-HG and (S)-α-HG have been implicated in various physiological and pathological conditions, including cancer, neurodegeneration, and metabolic disorders. For instance, elevated levels of (R)-α-HG have been linked to mutations in the L-2-HGDH gene, leading to a rare genetic disorder known as L-2-hydroxyglutaric aciduria. This disorder is characterized by neurological dysfunction, including seizures, intellectual disability, and movement disorders. (S)-α-HG has been shown to have both beneficial and detrimental effects, depending on the context. Studies have reported that (S)-α-HG can act as a substrate for various enzymes, including α-KG-dependent dioxygenases, which play crucial roles in epigenetic regulation, oxygen sensing, and cellular differentiation. However, elevated levels of (S)-α-HG have also been associated with oxidative stress, mitochondrial dysfunction, and tumorigenesis. The precise mechanisms underlying the effects of α-HG are still under investigation, but its involvement in various metabolic pathways, its ability to modulate enzyme activity, and its potential as a signaling molecule make it an important target for further research.'
2-hydroxyglutarate : A dicarboxylic acid anion obtained by deprotonation of at least one of the carboxy groups of 2-hydroxyglutaric acid. [Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]
2-hydroxyglutaric acid : A 2-hydroxydicarboxylic acid that is glutaric acid in which one hydrogen alpha- to a carboxylic acid group is substituted by a hydroxy group. [Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]
ID Source | ID |
---|---|
PubMed CID | 43 |
CHEMBL ID | 4870693 |
CHEBI ID | 17084 |
SCHEMBL ID | 7509 |
MeSH ID | M0071870 |
Synonym |
---|
CHEBI:17084 |
alpha-hydroxyglutaric acid |
pentanedioic acid, 2-hydroxy- |
glutaric acid, 2-hydroxy- (6ci,7ci,8ci) |
pentanedioic acid, 2-hydroxy- (9ci) |
dl-2-hydroxyglutaric |
2,3-dideoxypentaric acid |
(+/-)-2-hydroxyglutaric acid |
glutaric acid, 2-hydroxy- |
2-hydroxyglutarate |
alpha-hydroxyglutarate |
2-hydroxypentanedioic acid |
2889-31-8 |
2-hydroxyglutaric acid |
C02630 |
AKOS006373038 |
A18581 |
unii-rs4m3uys95 |
rs4m3uys95 , |
SCHEMBL7509 |
HWXBTNAVRSUOJR-UHFFFAOYSA-N |
FT-0696794 |
2-oxidanylpentanedioic acid |
LMFA01050483 |
2-hydroxyglutaric acid disodium salt |
Q209412 |
2-hydroxypentanedioicacid |
DTXSID40864360 |
FT-0775117 |
SB45575 |
HY-113038B |
EN300-297558 |
CAA88931 |
CS-0145757 |
?-hydroxyglutaric acid |
2-hydroxyglutaric acid, (+/-)- |
dl-2-hydroxyglutaric acid |
CHEMBL4870693 , |
bdbm50570892 |
Excerpt | Reference | Relevance |
---|---|---|
" We explored the pharmacokinetic (PK) and pharmacodynamic (PD) profiles of ivosidenib in these populations." | ( Clinical pharmacokinetics and pharmacodynamics of ivosidenib, an oral, targeted inhibitor of mutant IDH1, in patients with advanced solid tumors. Agresta, S; Dai, D; Fan, B; Gliser, C; Goyal, L; Jiang, L; Liu, G; Lowery, MA; Manyak, E; Mellinghoff, IK; Nimkar, T; Pandya, SS; Prahl Judge, M; Tap, WD; Wen, PY; Yang, H, 2020) | 0.56 |
Excerpt | Reference | Relevance |
---|---|---|
" Here we developed a strategy by chiral derivatization combined with liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) analysis for highly sensitive determination of D-2HG and L-2HG enantiomers." | ( Sensitive Determination of Onco-metabolites of D- and L-2-hydroxyglutarate Enantiomers by Chiral Derivatization Combined with Liquid Chromatography/Mass Spectrometry Analysis. Cheng, QY; Ci, W; Feng, YQ; Huang, W; Ma, Q; Xiong, J; Yuan, BF, 2015) | 0.42 |
" Herein, we describe a method for the separation and determination of lactic acid and 2-hydroxyglutaric acid enantiomers by chiral derivatization (with l-menthol and acetyl chloride) combined with gas chromatography and mass spectrometry." | ( Separation and determination of the enantiomers of lactic acid and 2-hydroxyglutaric acid by chiral derivatization combined with gas chromatography and mass spectrometry. Ding, X; Liang, J; Lin, S; Weng, H, 2018) | 0.48 |
Excerpt | Reference | Relevance |
---|---|---|
" Inhibition of glutaminase by allosteric GLS inhibitor bis-2-(5-phenylacetamido-1, 2, 4-thiadiazol-2-yl) ethyl sulfide or by novel, potent, orally bioavailable GLS inhibitor CB-839 reduced intracellular glutamate levels and inhibited growth of AML cells." | ( Inhibiting glutaminase in acute myeloid leukemia: metabolic dependency of selected AML subtypes. Baran, N; Cai, T; Chan, SM; Davis, RE; DiNardo, C; Flores, ER; Gonzalez, D; Haferlach, T; Jacamo, R; Konoplev, S; Konopleva, M; Li, W; Lodi, A; Ma, H; Majeti, R; Matre, P; Qi, Y; Samudio, I; Schimmer, AD; Su, X; Sweeney, SR; Tiziani, S; Velez, J; Wang, T, 2016) | 0.43 |
Excerpt | Relevance | Reference |
---|---|---|
" There were also increases in plasma 2HG in CER-treated rats on Days 8 and 11 and in TMPD-treated rats at 24 hr after dosing and increases in plasma hexanoylcarnitine in CER-treated rats on Day 11 and in TMPD-treated rats at 6 and 24 hr after dosing." | ( Plasma 2-hydroxyglutarate and hexanoylcarnitine levels are potential biomarkers for skeletal muscle toxicity in male Fischer 344 rats. Asai, F; Kobayashi, N; Nezu, Y; Obayashi, H; Shirai, M; Yamoto, T, 2017) | 0.46 |
Role | Description |
---|---|
metabolite | Any intermediate or product resulting from metabolism. The term 'metabolite' subsumes the classes commonly known as primary and secondary metabolites. |
mouse metabolite | Any mammalian metabolite produced during a metabolic reaction in a mouse (Mus musculus). |
[role information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res] |
Class | Description |
---|---|
2-hydroxydicarboxylic acid | Any dicarboxylic acid carrying a hydroxy group on the carbon atom at position alpha to the carboxy group. |
dicarboxylic fatty acid | |
[compound class information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res] |
Protein | Taxonomy | Measurement | Average | Min (ref.) | Avg (ref.) | Max (ref.) | Bioassay(s) |
---|---|---|---|---|---|---|---|
Methylcytosine dioxygenase TET2 | Homo sapiens (human) | IC50 (µMol) | 261.5000 | 2.2700 | 2.2700 | 2.2700 | AID1763202 |
[prepared from compound, protein, and bioassay information from National Library of Medicine (NLM), extracted Dec-2023] |
Protein | Taxonomy | Measurement | Average | Min (ref.) | Avg (ref.) | Max (ref.) | Bioassay(s) |
---|---|---|---|---|---|---|---|
Methylcytosine dioxygenase TET2 | Homo sapiens (human) | Kd | 3.4200 | 3.4200 | 3.4200 | 3.4200 | AID1763206 |
[prepared from compound, protein, and bioassay information from National Library of Medicine (NLM), extracted Dec-2023] |
Process | via Protein(s) | Taxonomy |
---|---|---|
leukocyte differentiation | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
5-methylcytosine catabolic process | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
protein O-linked glycosylation | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
response to organic cyclic compound | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
myeloid cell differentiation | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
positive regulation of gene expression via chromosomal CpG island demethylation | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
positive regulation of transcription by RNA polymerase II | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
DNA demethylation | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
[Information is prepared from geneontology information from the June-17-2024 release] |
Process | via Protein(s) | Taxonomy |
---|---|---|
DNA binding | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
protein binding | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
ferrous iron binding | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
zinc ion binding | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
5-methylcytosine dioxygenase activity | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
[Information is prepared from geneontology information from the June-17-2024 release] |
Process | via Protein(s) | Taxonomy |
---|---|---|
nucleoplasm | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
chromosome | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
nucleus | Methylcytosine dioxygenase TET2 | Homo sapiens (human) |
[Information is prepared from geneontology information from the June-17-2024 release] |
Assay ID | Title | Year | Journal | Article |
---|---|---|---|---|
AID1763202 | Inhibition of recombinant human GST-tagged TET2 (1099 to 1936 residues) expressed in Escherichia coli BL21 (DE3)pLysS assessed as reduction in 5hmc level incubated for 2 hrs by ELISA | 2021 | Bioorganic & medicinal chemistry, 06-01, Volume: 39 | SAR insights into TET2 catalytic domain inhibition: Synthesis of 2-Hydroxy-4-Methylene-pentanedicarboxylates. |
AID1763206 | Binding affinity to human recombinant TET2 (1099 to 1936) catalytic domain assessed as dissociation constant by micro-scale thermophoresis analysis | 2021 | Bioorganic & medicinal chemistry, 06-01, Volume: 39 | SAR insights into TET2 catalytic domain inhibition: Synthesis of 2-Hydroxy-4-Methylene-pentanedicarboxylates. |
[information is prepared from bioassay data collected from National Library of Medicine (NLM), extracted Dec-2023] |
Timeframe | Studies, This Drug (%) | All Drugs % |
---|---|---|
pre-1990 | 11 (2.11) | 18.7374 |
1990's | 35 (6.70) | 18.2507 |
2000's | 77 (14.75) | 29.6817 |
2010's | 301 (57.66) | 24.3611 |
2020's | 98 (18.77) | 2.80 |
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023] |
According to the monthly volume, diversity, and competition of internet searches for this compound, as well the volume and growth of publications, there is estimated to be weak demand-to-supply ratio for research on this compound.
| This Compound (9.06) All Compounds (24.57) |
Publication Type | This drug (%) | All Drugs (%) |
---|---|---|
Trials | 9 (1.68%) | 5.53% |
Reviews | 56 (10.47%) | 6.00% |
Case Studies | 70 (13.08%) | 4.05% |
Observational | 1 (0.19%) | 0.25% |
Other | 399 (74.58%) | 84.16% |
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023] |
Substance | Relationship Strength | Studies | Trials | Classes | Roles |
---|---|---|---|---|---|
acetylcarnitine Acetylcarnitine: An acetic acid ester of CARNITINE that facilitates movement of ACETYL COA into the matrices of mammalian MITOCHONDRIA during the oxidation of FATTY ACIDS. | 2.25 | 1 | 0 | O-acylcarnitine | human metabolite |
2-keto-4-methylvalerate alpha-ketoisocaproic acid: RN given refers to parent cpd. 4-methyl-2-oxopentanoate : A 2-oxo monocarboxylic acid anion that is the conjugate base of 4-methyl-2-oxopentanoic acid.. 4-methyl-2-oxopentanoic acid : A 2-oxo monocarboxylic acid that is pentanoic acid (valeric acid) substituted with a keto group at C-2 and a methyl group at C-4. A metabolite that has been found to accumulate in maple syrup urine disease. | 1.96 | 1 | 0 | 2-oxo monocarboxylic acid; branched-chain keto acid | algal metabolite; human metabolite |
alpha-ketoadipic acid 2-oxoadipic acid : An oxo dicarboxylic acid that is adipic acid substituted by an oxo group at position 2. | 2 | 1 | 0 | oxo dicarboxylic acid | human urinary metabolite; mouse metabolite |
gamma-aminobutyric acid gamma-Aminobutyric Acid: The most common inhibitory neurotransmitter in the central nervous system.. gamma-aminobutyric acid : A gamma-amino acid that is butanoic acid with the amino substituent located at C-4. | 4.37 | 6 | 0 | amino acid zwitterion; gamma-amino acid; monocarboxylic acid | human metabolite; neurotransmitter; Saccharomyces cerevisiae metabolite; signalling molecule |
5-aminovaleric acid 5-aminovaleric acid: from red fox anal secretion; RN given refers to parent cpd. 5-aminopentanoic acid : A delta-amino acid comprising pentanoic acid with an amino substituent at C-5; a methylene homologue of gamma-aminobutyric acid (GABA) that is a weak GABA agonist. | 2.17 | 1 | 0 | amino acid zwitterion; delta-amino acid; omega-amino fatty acid | human metabolite |
acetic acid Acetic Acid: Product of the oxidation of ethanol and of the destructive distillation of wood. It is used locally, occasionally internally, as a counterirritant and also as a reagent. (Stedman, 26th ed). acetic acid : A simple monocarboxylic acid containing two carbons. | 2.4 | 2 | 0 | monocarboxylic acid | antimicrobial food preservative; Daphnia magna metabolite; food acidity regulator; protic solvent |
adipic acid adipic acid : An alpha,omega-dicarboxylic acid that is the 1,4-dicarboxy derivative of butane. | 1.96 | 1 | 0 | alpha,omega-dicarboxylic acid; dicarboxylic fatty acid | food acidity regulator; human xenobiotic metabolite |
agmatine Agmatine: Decarboxylated arginine, isolated from several plant and animal sources, e.g., pollen, ergot, herring sperm, octopus muscle. | 2.25 | 1 | 0 | guanidines; primary amino compound | Escherichia coli metabolite; mouse metabolite |
carbamates [no description available] | 2.13 | 1 | 0 | amino-acid anion | |
formic acid formic acid: RN given refers to parent cpd. formic acid : The simplest carboxylic acid, containing a single carbon. Occurs naturally in various sources including the venom of bee and ant stings, and is a useful organic synthetic reagent. Principally used as a preservative and antibacterial agent in livestock feed. Induces severe metabolic acidosis and ocular injury in human subjects. | 1.97 | 1 | 0 | monocarboxylic acid | antibacterial agent; astringent; metabolite; protic solvent; solvent |
aminooxyacetic acid Aminooxyacetic Acid: A compound that inhibits aminobutyrate aminotransferase activity in vivo, thereby raising the level of gamma-aminobutyric acid in tissues.. (aminooxy)acetic acid : A member of the class of hydroxylamines that is acetic acid substituted at postion 2 by an aminooxy group. It is a compound which inhibits aminobutyrate aminotransferase activity in vivo, resulting in increased levels of gamma-aminobutyric acid in tissues. | 3.06 | 1 | 0 | amino acid; hydroxylamines; monocarboxylic acid | anticonvulsant; EC 2.6.1.19 (4-aminobutyrate--2-oxoglutarate transaminase) inhibitor; EC 4.2.1.22 (cystathionine beta-synthase) inhibitor; nootropic agent |
carnitine [no description available] | 3.03 | 4 | 0 | amino-acid betaine | human metabolite; mouse metabolite |
choline [no description available] | 4.18 | 3 | 0 | cholines | allergen; Daphnia magna metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; neurotransmitter; nutrient; plant metabolite; Saccharomyces cerevisiae metabolite |
aconitic acid Aconitic Acid: A tricarboxylic acid with the formula (COOH)-CH2-C(COOH)=CH-COOH.. aconitic acid : A tricarboxylic acid that is prop-1-ene substituted by carboxy groups at positions 1, 2 and 3. | 2.31 | 1 | 0 | tricarboxylic acid | |
citric acid, anhydrous Citric Acid: A key intermediate in metabolism. It is an acid compound found in citrus fruits. The salts of citric acid (citrates) can be used as anticoagulants due to their calcium chelating ability.. citric acid : A tricarboxylic acid that is propane-1,2,3-tricarboxylic acid bearing a hydroxy substituent at position 2. It is an important metabolite in the pathway of all aerobic organisms. | 3.02 | 4 | 0 | tricarboxylic acid | antimicrobial agent; chelator; food acidity regulator; fundamental metabolite |
chlorine chloride : A halide anion formed when chlorine picks up an electron to form an an anion. | 2.13 | 1 | 0 | halide anion; monoatomic chlorine | cofactor; Escherichia coli metabolite; human metabolite |
3-hydroxybutyric acid 3-Hydroxybutyric Acid: BUTYRIC ACID substituted in the beta or 3 position. It is one of the ketone bodies produced in the liver.. 3-hydroxybutyric acid : A straight-chain 3-hydroxy monocarboxylic acid comprising a butyric acid core with a single hydroxy substituent in the 3- position; a ketone body whose levels are raised during ketosis, used as an energy source by the brain during fasting in humans. Also used to synthesise biodegradable plastics. | 1.97 | 1 | 0 | (omega-1)-hydroxy fatty acid; 3-hydroxy monocarboxylic acid; hydroxybutyric acid | human metabolite |
2-aminoadipic acid 2-Aminoadipic Acid: A metabolite in the principal biochemical pathway of lysine. It antagonizes neuroexcitatory activity modulated by the glutamate receptor, N-METHYL-D-ASPARTATE; (NMDA).. 2-aminoadipic acid : An alpha-amino acid that is adipic acid bearing a single amino substituent at position 2. An intermediate in the formation of lysine. | 2.38 | 2 | 0 | amino dicarboxylic acid; dicarboxylic fatty acid; non-proteinogenic alpha-amino acid | Caenorhabditis elegans metabolite; mammalian metabolite |
methylmalonic acid Methylmalonic Acid: A malonic acid derivative which is a vital intermediate in the metabolism of fat and protein. Abnormalities in methylmalonic acid metabolism lead to methylmalonic aciduria. This metabolic disease is attributed to a block in the enzymatic conversion of methylmalonyl CoA to succinyl CoA.. methylmalonic acid : A dicarboxylic acid that is malonic acid in which one of the methylene hydrogens is substituted by a methyl group. | 3.51 | 2 | 0 | C4-dicarboxylic acid | human metabolite |
malic acid malic acid : A 2-hydroxydicarboxylic acid that is succinic acid in which one of the hydrogens attached to a carbon is replaced by a hydroxy group.. 2-hydroxydicarboxylic acid : Any dicarboxylic acid carrying a hydroxy group on the carbon atom at position alpha to the carboxy group. | 3.47 | 5 | 0 | 2-hydroxydicarboxylic acid; C4-dicarboxylic acid | food acidity regulator; fundamental metabolite |
creatine [no description available] | 4.4 | 4 | 0 | glycine derivative; guanidines; zwitterion | geroprotector; human metabolite; mouse metabolite; neuroprotective agent; nutraceutical |
cytosine [no description available] | 2.06 | 1 | 0 | aminopyrimidine; pyrimidine nucleobase; pyrimidone | Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
lactic acid Lactic Acid: A normal intermediate in the fermentation (oxidation, metabolism) of sugar. The concentrated form is used internally to prevent gastrointestinal fermentation. (From Stedman, 26th ed). 2-hydroxypropanoic acid : A 2-hydroxy monocarboxylic acid that is propanoic acid in which one of the alpha-hydrogens is replaced by a hydroxy group. | 4.82 | 12 | 0 | 2-hydroxy monocarboxylic acid | algal metabolite; Daphnia magna metabolite |
formaldehyde paraform: polymerized formaldehyde; RN given refers to parent cpd; used in root canal therapy | 2.07 | 1 | 0 | aldehyde; one-carbon compound | allergen; carcinogenic agent; disinfectant; EC 3.5.1.4 (amidase) inhibitor; environmental contaminant; Escherichia coli metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
3-phosphoglycerate 3-phosphoglycerate : An organic anion obtained by deprotonation of at least one of the acidic groups of 3-phosphoglyceric acid. | 2.74 | 3 | 0 | monophosphoglyceric acid; tetronic acid derivative | algal metabolite; fundamental metabolite |
glutaric acid glutaric acid: RN given refers to parent cpd. glutaric acid : An alpha,omega-dicarboxylic acid that is a linear five-carbon dicarboxylic acid. | 3.1 | 5 | 0 | alpha,omega-dicarboxylic acid; dicarboxylic fatty acid | Daphnia magna metabolite; human metabolite |
glycine [no description available] | 5.29 | 4 | 1 | alpha-amino acid; amino acid zwitterion; proteinogenic amino acid; serine family amino acid | EC 2.1.2.1 (glycine hydroxymethyltransferase) inhibitor; fundamental metabolite; hepatoprotective agent; micronutrient; neurotransmitter; NMDA receptor agonist; nutraceutical |
glyceric acid glyceric acid: found in urine of patient with D-glyceric acidemia & hyperglycinaemia; RN given refers to parent cpd without isomeric designation. glycerol ether : Any ether having glyceryl as at least one of the O-substituents.. glyceric acid : A trionic acid that consists of propionic acid substituted at positions 2 and 3 by hydroxy groups. | 1.99 | 1 | 0 | trionic acid | fundamental metabolite |
glyoxylic acid glyoxylic acid: RN given refers to parent cpd. glyoxylic acid : A 2-oxo monocarboxylic acid that is acetic acid bearing an oxo group at the alpha carbon atom. | 2.38 | 2 | 0 | 2-oxo monocarboxylic acid; aldehydic acid | Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
hydrogen Hydrogen: The first chemical element in the periodic table with atomic symbol H, and atomic number 1. Protium (atomic weight 1) is by far the most common hydrogen isotope. Hydrogen also exists as the stable isotope DEUTERIUM (atomic weight 2) and the radioactive isotope TRITIUM (atomic weight 3). Hydrogen forms into a diatomic molecule at room temperature and appears as a highly flammable colorless and odorless gas.. dihydrogen : An elemental molecule consisting of two hydrogens joined by a single bond. | 3.58 | 2 | 0 | elemental hydrogen; elemental molecule; gas molecular entity | antioxidant; electron donor; food packaging gas; fuel; human metabolite |
inositol Inositol: An isomer of glucose that has traditionally been considered to be a B vitamin although it has an uncertain status as a vitamin and a deficiency syndrome has not been identified in man. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1379) Inositol phospholipids are important in signal transduction.. inositol : Any cyclohexane-1,2,3,4,5,6-hexol.. 1D-chiro-inositol : Belonging to the inositol family of compounds, D-chiro-inositol (DCI) is an isomer of glucose. It is an important secondary messenger in insulin signal transduction.. muco-inositol : An inositol that is cyclohexane-1,2,3,4,5,6-hexol having a (1R,2R,3r,4R,5S,6r)-configuration. | 2.44 | 2 | 0 | cyclitol; hexol | |
nitrates Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical. | 2.17 | 1 | 0 | monovalent inorganic anion; nitrogen oxoanion; reactive nitrogen species | |
nitrites Nitrites: Salts of nitrous acid or compounds containing the group NO2-. The inorganic nitrites of the type MNO2 (where M=metal) are all insoluble, except the alkali nitrites. The organic nitrites may be isomeric, but not identical with the corresponding nitro compounds. (Grant & Hackh's Chemical Dictionary, 5th ed) | 2.17 | 1 | 0 | monovalent inorganic anion; nitrogen oxoanion; reactive nitrogen species | human metabolite |
orotic acid Orotic Acid: An intermediate product in PYRIMIDINE synthesis which plays a role in chemical conversions between DIHYDROFOLATE and TETRAHYDROFOLATE.. orotic acid : A pyrimidinemonocarboxylic acid that is uracil bearing a carboxy substituent at position C-6. | 2.04 | 1 | 0 | pyrimidinemonocarboxylic acid | Escherichia coli metabolite; metabolite; mouse metabolite |
oxaloacetic acid Oxaloacetic Acid: A dicarboxylic acid ketone that is an important metabolic intermediate of the CITRIC ACID CYCLE. It can be converted to ASPARTIC ACID by ASPARTATE TRANSAMINASE.. oxaloacetic acid : An oxodicarboxylic acid that is succinic acid bearing a single oxo group. | 2.78 | 3 | 0 | C4-dicarboxylic acid; oxo dicarboxylic acid | geroprotector; metabolite |
4-aminobenzoic acid 4-Aminobenzoic Acid: An aminobenzoic acid isomer that combines with pteridine and GLUTAMIC ACID to form FOLIC ACID. The fact that 4-aminobenzoic acid absorbs light throughout the UVB range has also resulted in its use as an ingredient in SUNSCREENS.. 4-ammoniobenzoate : A zwitterion obtained by transfer of a proton from the carboxy to the amino group of 4-aminobenzoic acid.. 4-aminobenzoic acid : An aminobenzoic acid in which the amino group is para to the carboxy group. | 1.99 | 1 | 0 | aminobenzoic acid; aromatic amino-acid zwitterion | allergen; Escherichia coli metabolite; plant metabolite |
phosphorylcholine Phosphorylcholine: Calcium and magnesium salts used therapeutically in hepatobiliary dysfunction.. phosphocholine : The phosphate of choline; and the parent compound of the phosphocholine family. | 2.21 | 1 | 0 | phosphocholines | allergen; epitope; hapten; human metabolite; mouse metabolite |
phosphorylethanolamine phosphorylethanolamine: RN given refers to parent cpd; structure. O-phosphoethanolamine : The ethanolamine mono-ester of phosphoric acid, and a metabolite of phospholipid metabolism. This phosphomonoester shows strong structural similarity to the inhibitory neurotransmitter GABA, and is decreased in post-mortem Alzheimer's disease brain. | 2.21 | 1 | 0 | phosphoethanolamine; primary amino compound | algal metabolite; human metabolite; mouse metabolite |
putrescine [no description available] | 2.25 | 1 | 0 | alkane-alpha,omega-diamine | antioxidant; fundamental metabolite |
pyridoxal phosphate Pyridoxal Phosphate: This is the active form of VITAMIN B 6 serving as a coenzyme for synthesis of amino acids, neurotransmitters (serotonin, norepinephrine), sphingolipids, aminolevulinic acid. During transamination of amino acids, pyridoxal phosphate is transiently converted into pyridoxamine phosphate (PYRIDOXAMINE).. pyridoxal 5'-phosphate : The monophosphate ester obtained by condensation of phosphoric acid with the primary hydroxy group of pyridoxal. | 1.99 | 1 | 0 | methylpyridines; monohydroxypyridine; pyridinecarbaldehyde; vitamin B6 phosphate | coenzyme; cofactor; EC 2.7.7.7 (DNA-directed DNA polymerase) inhibitor; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
pyruvic acid Pyruvic Acid: An intermediate compound in the metabolism of carbohydrates, proteins, and fats. In thiamine deficiency, its oxidation is retarded and it accumulates in the tissues, especially in nervous structures. (From Stedman, 26th ed). pyruvic acid : A 2-oxo monocarboxylic acid that is the 2-keto derivative of propionic acid. It is a metabolite obtained during glycolysis. | 2.96 | 3 | 0 | 2-oxo monocarboxylic acid | cofactor; fundamental metabolite |
sarcosine cocobetaine: N-alkyl-betaine; cause of shampoo dermatitis | 1.96 | 1 | 0 | N-alkylglycine zwitterion; N-alkylglycine; N-methyl-amino acid; N-methylglycines | Escherichia coli metabolite; glycine receptor agonist; glycine transporter 1 inhibitor; human metabolite; mouse metabolite |
succinic acid Succinic Acid: A water-soluble, colorless crystal with an acid taste that is used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. (Hawley's Condensed Chemical Dictionary, 12th ed, p1099; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1851). succinic acid : An alpha,omega-dicarboxylic acid resulting from the formal oxidation of each of the terminal methyl groups of butane to the corresponding carboxy group. It is an intermediate metabolite in the citric acid cycle. | 5.34 | 9 | 0 | alpha,omega-dicarboxylic acid; C4-dicarboxylic acid | anti-ulcer drug; fundamental metabolite; micronutrient; nutraceutical; radiation protective agent |
succinic semialdehyde succinic semialdehyde: structure | 2.71 | 3 | 0 | aldehydic acid | Escherichia coli metabolite; mouse metabolite |
sulfuric acid sulfuric acid : A sulfur oxoacid that consists of two oxo and two hydroxy groups joined covalently to a central sulfur atom. | 1.97 | 1 | 0 | sulfur oxoacid | catalyst |
thymine [no description available] | 2.31 | 1 | 0 | pyrimidine nucleobase; pyrimidone | Escherichia coli metabolite; human metabolite; mouse metabolite |
isocitric acid isocitric acid: RN given refers to unlabeled parent cpd. isocitric acid : A tricarboxylic acid that is propan-1-ol with a hydrogen at each of the 3 carbon positions replaced by a carboxy group. | 5.74 | 9 | 0 | secondary alcohol; tricarboxylic acid | fundamental metabolite |
p-aminohippuric acid p-Aminohippuric Acid: The glycine amide of 4-aminobenzoic acid. Its sodium salt is used as a diagnostic aid to measure effective renal plasma flow (ERPF) and excretory capacity.. p-aminohippurate : A hippurate that is the conjugate base of p-aminohippuric acid, arising from deprotonation of the carboxy group.. p-aminohippuric acid : An N-acylglycine that is the 4-amino derivative of hippuric acid; used as a diagnostic agent in the measurement of renal plasma flow. | 2.04 | 1 | 0 | N-acylglycine | Daphnia magna metabolite |
aspirin Aspirin: The prototypical analgesic used in the treatment of mild to moderate pain. It has anti-inflammatory and antipyretic properties and acts as an inhibitor of cyclooxygenase which results in the inhibition of the biosynthesis of prostaglandins. Aspirin also inhibits platelet aggregation and is used in the prevention of arterial and venous thrombosis. (From Martindale, The Extra Pharmacopoeia, 30th ed, p5). acetylsalicylate : A benzoate that is the conjugate base of acetylsalicylic acid, arising from deprotonation of the carboxy group.. acetylsalicylic acid : A member of the class of benzoic acids that is salicylic acid in which the hydrogen that is attached to the phenolic hydroxy group has been replaced by an acetoxy group. A non-steroidal anti-inflammatory drug with cyclooxygenase inhibitor activity. | 3.51 | 1 | 1 | benzoic acids; phenyl acetates; salicylates | anticoagulant; antipyretic; cyclooxygenase 1 inhibitor; cyclooxygenase 2 inhibitor; drug allergen; EC 1.1.1.188 (prostaglandin-F synthase) inhibitor; geroprotector; non-narcotic analgesic; non-steroidal anti-inflammatory drug; plant activator; platelet aggregation inhibitor; prostaglandin antagonist; teratogenic agent |
busulfan [no description available] | 2.11 | 1 | 0 | methanesulfonate ester | alkylating agent; antineoplastic agent; carcinogenic agent; insect sterilant; teratogenic agent |
fenofibrate [no description available] | 2.11 | 1 | 0 | benzochromenone; delta-lactone; naphtho-alpha-pyrone | platelet aggregation inhibitor; Sir2 inhibitor |
temozolomide [no description available] | 2.57 | 2 | 0 | imidazotetrazine; monocarboxylic acid amide; triazene derivative | alkylating agent; antineoplastic agent; prodrug |
hydroxyproline Hydroxyproline: A hydroxylated form of the imino acid proline. A deficiency in ASCORBIC ACID can result in impaired hydroxyproline formation.. hydroxyproline : A proline derivative that is proline substituted by at least one hydroxy group. | 2.07 | 1 | 0 | 4-hydroxyproline; L-alpha-amino acid zwitterion | human metabolite; mouse metabolite; plant metabolite |
estrone Hydroxyestrones: Estrone derivatives substituted with one or more hydroxyl groups in any position. They are important metabolites of estrone and other estrogens. | 2.04 | 1 | 0 | 17-oxo steroid; 3-hydroxy steroid; phenolic steroid; phenols | antineoplastic agent; bone density conservation agent; estrogen; human metabolite; mouse metabolite |
serine Serine: A non-essential amino acid occurring in natural form as the L-isomer. It is synthesized from GLYCINE or THREONINE. It is involved in the biosynthesis of PURINES; PYRIMIDINES; and other amino acids.. serine : An alpha-amino acid that is alanine substituted at position 3 by a hydroxy group. | 3 | 4 | 0 | L-alpha-amino acid; proteinogenic amino acid; serine family amino acid; serine zwitterion; serine | algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
aspartic acid Aspartic Acid: One of the non-essential amino acids commonly occurring in the L-form. It is found in animals and plants, especially in sugar cane and sugar beets. It may be a neurotransmitter.. aspartic acid : An alpha-amino acid that consists of succinic acid bearing a single alpha-amino substituent. L-aspartic acid : The L-enantiomer of aspartic acid. | 4.8 | 7 | 0 | aspartate family amino acid; aspartic acid; L-alpha-amino acid; proteinogenic amino acid | Escherichia coli metabolite; mouse metabolite; neurotransmitter |
glutamine Glutamine: A non-essential amino acid present abundantly throughout the body and is involved in many metabolic processes. It is synthesized from GLUTAMIC ACID and AMMONIA. It is the principal carrier of NITROGEN in the body and is an important energy source for many cells.. L-glutamine : An optically active form of glutamine having L-configuration.. glutamine : An alpha-amino acid that consists of butyric acid bearing an amino substituent at position 2 and a carbamoyl substituent at position 4. | 6.28 | 16 | 0 | amino acid zwitterion; glutamine family amino acid; glutamine; L-alpha-amino acid; polar amino acid zwitterion; proteinogenic amino acid | EC 1.14.13.39 (nitric oxide synthase) inhibitor; Escherichia coli metabolite; human metabolite; metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite |
lysine Lysine: An essential amino acid. It is often added to animal feed.. lysine : A diamino acid that is caproic (hexanoic) acid bearing two amino substituents at positions 2 and 6.. L-lysine : An L-alpha-amino acid; the L-isomer of lysine. | 5.09 | 13 | 0 | aspartate family amino acid; L-alpha-amino acid zwitterion; L-alpha-amino acid; lysine; organic molecular entity; proteinogenic amino acid | algal metabolite; anticonvulsant; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; plant metabolite; Saccharomyces cerevisiae metabolite |
uridine monophosphate Uridine Monophosphate: 5'-Uridylic acid. A uracil nucleotide containing one phosphate group esterified to the sugar moiety in the 2', 3' or 5' position.. uridine 5'-monophosphate : A pyrimidine ribonucleoside 5'-monophosphate having uracil as the nucleobase. | 2.25 | 1 | 0 | pyrimidine ribonucleoside 5'-monophosphate; uridine 5'-phosphate | Escherichia coli metabolite; human metabolite; mouse metabolite |
edetic acid Edetic Acid: A chelating agent that sequesters a variety of polyvalent cations such as CALCIUM. It is used in pharmaceutical manufacturing and as a food additive. | 2.6 | 1 | 0 | ethylenediamine derivative; polyamino carboxylic acid; tetracarboxylic acid | anticoagulant; antidote; chelator; copper chelator; geroprotector |
tyrosine Tyrosine: A non-essential amino acid. In animals it is synthesized from PHENYLALANINE. It is also the precursor of EPINEPHRINE; THYROID HORMONES; and melanin.. tyrosine : An alpha-amino acid that is phenylalanine bearing a hydroxy substituent at position 4 on the phenyl ring. | 2.15 | 1 | 0 | amino acid zwitterion; erythrose 4-phosphate/phosphoenolpyruvate family amino acid; L-alpha-amino acid; proteinogenic amino acid; tyrosine | EC 1.3.1.43 (arogenate dehydrogenase) inhibitor; fundamental metabolite; micronutrient; nutraceutical |
chloroform Chloroform: A commonly used laboratory solvent. It was previously used as an anesthetic, but was banned from use in the U.S. due to its suspected carcinogenicity.. chloroform : A one-carbon compound that is methane in which three of the hydrogens are replaced by chlorines. | 2.17 | 1 | 0 | chloromethanes; one-carbon compound | carcinogenic agent; central nervous system drug; inhalation anaesthetic; non-polar solvent; refrigerant |
cytarabine [no description available] | 2.07 | 1 | 0 | beta-D-arabinoside; monosaccharide derivative; pyrimidine nucleoside | antimetabolite; antineoplastic agent; antiviral agent; immunosuppressive agent |
ornithine Ornithine: An amino acid produced in the urea cycle by the splitting off of urea from arginine.. ornithine : An alpha-amino acid that is pentanoic acid bearing two amino substituents at positions 2 and 5. | 2.25 | 1 | 0 | non-proteinogenic L-alpha-amino acid; ornithine | algal metabolite; hepatoprotective agent; mouse metabolite |
histidine Histidine: An essential amino acid that is required for the production of HISTAMINE.. L-histidine : The L-enantiomer of the amino acid histidine.. histidine : An alpha-amino acid that is propanoic acid bearing an amino substituent at position 2 and a 1H-imidazol-4-yl group at position 3. | 2.05 | 1 | 0 | amino acid zwitterion; histidine; L-alpha-amino acid; polar amino acid zwitterion; proteinogenic amino acid | algal metabolite; Escherichia coli metabolite; human metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite |
arginine Arginine: An essential amino acid that is physiologically active in the L-form.. arginine : An alpha-amino acid that is glycine in which the alpha-is substituted by a 3-guanidinopropyl group. | 5.67 | 7 | 0 | arginine; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid | biomarker; Escherichia coli metabolite; micronutrient; mouse metabolite; nutraceutical |
dichloroacetic acid [no description available] | 2.11 | 1 | 0 | monocarboxylic acid; organochlorine compound | astringent; marine metabolite |
rotenone Derris: A plant genus of the family FABACEAE. The root is a source of rotenoids (ROTENONE) and flavonoids. Some species of Pongamia have been reclassified to this genus and some to MILLETTIA. Some species of Deguelia have been reclassified to this genus.. rotenoid : Members of the class of tetrahydrochromenochromene that consists of a cis-fused tetrahydrochromeno[3,4-b]chromene skeleton and its substituted derivatives. The term was originally restricted to natural products, but is now also used to describe semi-synthetic and fully synthetic compounds. | 2.11 | 1 | 0 | organic heteropentacyclic compound; rotenones | antineoplastic agent; metabolite; mitochondrial NADH:ubiquinone reductase inhibitor; phytogenic insecticide; piscicide; toxin |
quinoxalines quinoxaline : A naphthyridine in which the nitrogens are at positions 1 and 4. | 2.21 | 1 | 0 | mancude organic heterobicyclic parent; naphthyridine; ortho-fused heteroarene | |
xanthenes Xanthenes: Compounds with three aromatic rings in linear arrangement with an OXYGEN in the center ring. | 2.31 | 1 | 0 | xanthene | |
pyrrolidonecarboxylic acid Pyrrolidonecarboxylic Acid: A cyclized derivative of L-GLUTAMIC ACID. Elevated blood levels may be associated with problems of GLUTAMINE or GLUTATHIONE metabolism.. 5-oxo-L-proline : An optically active form of 5-oxoproline having L-configuration. | 2.43 | 2 | 0 | 5-oxoproline; L-proline derivative; non-proteinogenic L-alpha-amino acid | algal metabolite |
tetramethylphenylenediamine 1,4-bis(dimethylamino)benzene: structure in first source | 2.57 | 2 | 0 | ||
2-diethylaminoethanol 2-diethylaminoethanol: RN given refers to unlabeled parent cpd. 2-diethylaminoethanol : A member of the class of ethanolamines that is aminoethanol in which the hydrogens of the amino group are replaced by ethyl groups. | 2.02 | 1 | 0 | ethanolamines; primary alcohol; tertiary amino compound | |
dimethyl succinate dimethyl succinate: potent insulin secretagogue | 2.31 | 1 | 0 | fatty acid methyl ester | |
maleic anhydride Maleic Anhydrides: Used in copolymerization reactions, in the Diels-Alder(diene)synthesis, in the preparation of resins, pharmaceuticals and agricultural chemicals. It is a powerful irritant and causes burns.. maleic anhydride : A cyclic dicarboxylic anhydride that is the cyclic anhydride of maleic acid. | 2.13 | 1 | 0 | cyclic dicarboxylic anhydride; furans | allergen |
catechin Catechin: An antioxidant flavonoid, occurring especially in woody plants as both (+)-catechin and (-)-epicatechin (cis) forms.. catechin : Members of the class of hydroxyflavan that have a flavan-3-ol skeleton and its substituted derivatives.. rac-catechin : A racemate comprising equimolar amounts of (+)- and (-)-catechin. (+)-catechin : The (+)-enantiomer of catechin and a polyphenolic antioxidant plant metabolite. | 2.25 | 1 | 0 | catechin | antioxidant; plant metabolite |
azacitidine Azacitidine: A pyrimidine analogue that inhibits DNA methyltransferase, impairing DNA methylation. It is also an antimetabolite of cytidine, incorporated primarily into RNA. Azacytidine has been used as an antineoplastic agent.. 5-azacytidine : An N-glycosyl-1,3,5-triazine that is 4-amino-1,3,5-triazin-2(1H)-one substituted by a beta-D-ribofuranosyl residue via an N-glycosidic linkage. An antineoplastic agent, it is used in the treatment of myeloid leukaemia. | 2.07 | 1 | 0 | N-glycosyl-1,3,5-triazine; nucleoside analogue | antineoplastic agent |
4-hydroxybutyric acid 4-hydroxybutyric acid: was an entry term to Sodium Oxybate (74-98). 4-hydroxybutyric acid : A 4-hydroxy monocarboxylic acid that is butyric acid in which one of the hydrogens at position 4 is replaced by a hydroxy group. | 2.43 | 2 | 0 | 4-hydroxy monocarboxylic acid; hydroxybutyric acid | general anaesthetic; GHB receptor agonist; neurotoxin; sedative |
isovaleric acid isovaleric acid: structure. isovaleric acid : A C5, branched-chain saturated fatty acid. | 2.04 | 1 | 0 | branched-chain saturated fatty acid; methylbutyric acid; short-chain fatty acid | mammalian metabolite; plant metabolite |
copper gluconate Gluconates: Derivatives of gluconic acid (the structural formula HOCH2(CHOH)4COOH), including its salts and esters. | 2.25 | 1 | 0 | organic molecular entity | |
malondialdehyde Malondialdehyde: The dialdehyde of malonic acid.. malonaldehyde : A dialdehyde that is propane substituted by two oxo groups at the terminal carbon atoms respectively. A biomarker of oxidative damage to lipids caused by smoking, it exists in vivo mainly in the enol form. | 2.81 | 3 | 0 | dialdehyde | biomarker |
resazurin resazurin: used as indicator in detection of hyposulfite (sulfoxylate); in food research (reductase test); structure | 2.31 | 1 | 0 | phenoxazine | |
glycerylphosphorylcholine Glycerylphosphorylcholine: A component of PHOSPHATIDYLCHOLINES or LECITHINS, in which the two hydroxy groups of GLYCEROL are esterified with fatty acids. (From Stedman, 26th ed) | 2.21 | 1 | 0 | glycerophosphocholine | |
2-hydroxybutyric acid 2-hydroxybutyric acid: RN given refers to cpd without isomeric designation. hydroxybutyric acid : Any compound comprising a butyric acid core carrying at least one hydroxy substituent.. 2-hydroxybutyric acid : A hydroxybutyric acid having a single hydroxyl group located at position 2; urinary secretion of 2-hydroxybutyric acid is increased with alcohol ingestion or vigorous physical exercise and is associated with lactic acidosis and ketoacidosis in humans and diabetes in animals. | 1.96 | 1 | 0 | 2-hydroxy monocarboxylic acid; hydroxybutyric acid | algal metabolite; human metabolite |
ethylmalonic acid ethylmalonic acid: don't confuse with diethyl malonate, which is a diester. ethylmalonate : A dicarboxylic acid anion obtained by deprotonation of at least one of the carboxy groups of ethylmalonic acid.. ethylmalonic acid : A dicarboxylic acid obtained by substitution of one of the methylene hydrogens of malonic acid by an ethyl group. | 2.02 | 1 | 0 | dicarboxylic acid; dicarboxylic fatty acid | human metabolite |
homoserine homoserine : An alpha-amino acid that is glycine substituted at the alpha-position by a 2-hydroxyethyl group.. L-homoserine : The L-enantiomer of homoserine. | 2.25 | 1 | 0 | amino acid zwitterion; homoserine | algal metabolite; Escherichia coli metabolite; human metabolite; Saccharomyces cerevisiae metabolite |
vancomycin Vancomycin: Antibacterial obtained from Streptomyces orientalis. It is a glycopeptide related to RISTOCETIN that inhibits bacterial cell wall assembly and is toxic to kidneys and the inner ear.. vancomycin : A complex glycopeptide from Streptomyces orientalis. It inhibits a specific step in the synthesis of the peptidoglycan layer in the Gram-positive bacteria Staphylococcus aureus and Clostridium difficile. | 2.6 | 1 | 0 | glycopeptide | antibacterial drug; antimicrobial agent; bacterial metabolite |
d-alpha tocopherol Vitamin E: A generic descriptor for all TOCOPHEROLS and TOCOTRIENOLS that exhibit ALPHA-TOCOPHEROL activity. By virtue of the phenolic hydrogen on the 2H-1-benzopyran-6-ol nucleus, these compounds exhibit varying degree of antioxidant activity, depending on the site and number of methyl groups and the type of ISOPRENOIDS.. tocopherol : A collective name for a group of closely related lipids that contain a chroman-6-ol nucleus substituted at position 2 by a methyl group and by a saturated hydrocarbon chain consisting of three isoprenoid units. They are designated as alpha-, beta-, gamma-, and delta-tocopherol depending on the number and position of additional methyl substituents on the aromatic ring. Tocopherols occur in vegetable oils and vegetable oil products, almost exclusively with R,R,R configuration. Tocotrienols differ from tocopherols only in having three double bonds in the hydrocarbon chain.. vitamin E : Any member of a group of fat-soluble chromanols that exhibit biological activity against vitamin E deficiency. The vitamers in this class consists of a chroman-6-ol core which is substituted at position 2 by a methyl group and (also at position 2) either a saturated or a triply-unsaturated hydrocarbon chain consisting of three isoprenoid units. The major function of vitamin E is to act as a natural antioxidant by scavenging free radicals and molecular oxygen.. (R,R,R)-alpha-tocopherol : An alpha-tocopherol that has R,R,R configuration. The naturally occurring stereoisomer of alpha-tocopherol, it is found particularly in sunflower and olive oils. | 2.42 | 2 | 0 | alpha-tocopherol | algal metabolite; antiatherogenic agent; anticoagulant; antioxidant; antiviral agent; EC 2.7.11.13 (protein kinase C) inhibitor; immunomodulator; micronutrient; nutraceutical; plant metabolite |
n-methylaspartate N-Methylaspartate: An amino acid that, as the D-isomer, is the defining agonist for the NMDA receptor subtype of glutamate receptors (RECEPTORS, NMDA).. N-methyl-D-aspartic acid : An aspartic acid derivative having an N-methyl substituent and D-configuration. | 2.7 | 3 | 0 | amino dicarboxylic acid; D-alpha-amino acid; D-aspartic acid derivative; secondary amino compound | neurotransmitter agent |
gold Gold: A yellow metallic element with the atomic symbol Au, atomic number 79, and atomic weight 197. It is used in jewelry, goldplating of other metals, as currency, and in dental restoration. Many of its clinical applications, such as ANTIRHEUMATIC AGENTS, are in the form of its salts. | 2.41 | 1 | 0 | copper group element atom; elemental gold | |
perchloric acid [no description available] | 2.17 | 1 | 0 | chlorine oxoacid | |
deuterium Deuterium: The stable isotope of hydrogen. It has one neutron and one proton in the nucleus. | 2.41 | 2 | 0 | dihydrogen | |
deuterium oxide Deuterium Oxide: The isotopic compound of hydrogen of mass 2 (deuterium) with oxygen. (From Grant & Hackh's Chemical Dictionary, 5th ed) It is used to study mechanisms and rates of chemical or nuclear reactions, as well as biological processes. | 2.17 | 1 | 0 | deuterated compound; water | NMR solvent |
dimethyl alpha-ketoglutarate [no description available] | 2.31 | 1 | 0 | oxo carboxylic acid | |
phenyl acetate phenyl acetate: The ester formed between phenol and acetic acid. Don't confuse with phenylacetic acid derivatives listed under PHENYLACETATES.. phenyl acetate : An acetate ester obtained by the formal condensation of phenol with acetic acid. | 3.06 | 5 | 0 | benzenes; phenyl acetates | |
glutamic acid Glutamic Acid: A non-essential amino acid naturally occurring in the L-form. Glutamic acid is the most common excitatory neurotransmitter in the CENTRAL NERVOUS SYSTEM.. glutamic acid : An alpha-amino acid that is glutaric acid bearing a single amino substituent at position 2. | 4.38 | 19 | 0 | glutamic acid; glutamine family amino acid; L-alpha-amino acid; proteinogenic amino acid | Escherichia coli metabolite; ferroptosis inducer; micronutrient; mouse metabolite; neurotransmitter; nutraceutical |
azoxymethane Azoxymethane: A potent carcinogen and neurotoxic compound. It is particularly effective in inducing colon carcinomas. | 2.17 | 1 | 0 | ||
s-adenosylmethionine acylcarnitine: structure in first source. S-adenosyl-L-methioninate : A sulfonium betaine that is a conjugate base of S-adenosyl-L-methionine obtained by the deprotonation of the carboxy group. | 2.21 | 1 | 0 | sulfonium betaine | human metabolite |
etoposide [no description available] | 2.11 | 1 | 0 | beta-D-glucoside; furonaphthodioxole; organic heterotetracyclic compound | antineoplastic agent; DNA synthesis inhibitor |
ng-nitroarginine methyl ester NG-Nitroarginine Methyl Ester: A non-selective inhibitor of nitric oxide synthase. It has been used experimentally to induce hypertension. | 2.94 | 4 | 0 | alpha-amino acid ester; L-arginine derivative; methyl ester; N-nitro compound | EC 1.14.13.39 (nitric oxide synthase) inhibitor |
6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid [no description available] | 2.01 | 1 | 0 | chromanol; monocarboxylic acid; phenols | antioxidant; ferroptosis inhibitor; neuroprotective agent; radical scavenger; Wnt signalling inhibitor |
idarubicin Idarubicin: An orally administered anthracycline antineoplastic. The compound has shown activity against BREAST NEOPLASMS; LYMPHOMA; and LEUKEMIA. | 2.07 | 1 | 0 | anthracycline antibiotic; deoxy hexoside; monosaccharide derivative | |
5-methylcytosine 5-Methylcytosine: A methylated nucleotide base found in eukaryotic DNA. In ANIMALS, the DNA METHYLATION of CYTOSINE to form 5-methylcytosine is found primarily in the palindromic sequence CpG. In PLANTS, the methylated sequence is CpNpGp, where N can be any base.. 5-methylcytosine : A pyrimidine that is a derivative of cytosine, having a methyl group at the 5-position. | 2.48 | 2 | 0 | methylcytosine; pyrimidines | human metabolite |
epigallocatechin gallate epigallocatechin gallate: a steroid 5alpha-reductase inhibitor and antimutagen in green tea (Camellia sinensis). (-)-epigallocatechin 3-gallate : A gallate ester obtained by the formal condensation of gallic acid with the (3R)-hydroxy group of (-)-epigallocatechin. | 2.25 | 1 | 0 | flavans; gallate ester; polyphenol | antineoplastic agent; antioxidant; apoptosis inducer; geroprotector; Hsp90 inhibitor; neuroprotective agent; plant metabolite |
n-acetylaspartic acid N-acetyl-L-aspartic acid : An N-acyl-L-aspartic acid in which the acyl group is specified as acetyl. | 4.7 | 6 | 0 | N-acetyl-L-amino acid; N-acyl-L-aspartic acid | antioxidant; human metabolite; mouse metabolite; nutraceutical; rat metabolite |
bromosuccinimide Bromosuccinimide: A brominating agent that replaces hydrogen atoms in benzylic or allylic positions. It is used in the oxidation of secondary alcohols to ketones and in controlled low-energy brominations. (From Miall's Dictionary of Chemistry, 5th ed; Hawley's Condensed Chemical Dictionary, 12th ed,). | 1.95 | 1 | 0 | dicarboximide; organobromine compound; pyrrolidinone | reagent |
delphinidin Paraffin: A mixture of solid hydrocarbons obtained from petroleum. It has a wide range of uses including as a stiffening agent in ointments, as a lubricant, and as a topical anti-inflammatory. It is also commonly used as an embedding material in histology.. delphinidin chloride : An anthocyanidin chloride that has delphinidin as the cationic counterpart. | 2.07 | 1 | 0 | anthocyanidin chloride | |
5-hydroxymethylcytosine 5-(hydroxymethyl)cytosine : A nucleobase analogue that is cytosine in which the hydrogen at position 5 is replaced by a hydroxymethyl group. | 2.06 | 1 | 0 | aminopyrimidine; aromatic primary alcohol; nucleobase analogue; pyrimidone | human metabolite; mouse metabolite |
3-(trimethylsilyl)propionic acid 3-(trimethylsilyl)propionic acid: structure in first source. 3-(trimethylsilyl)propionic acid : An organosilicon compound that is propionic acid substituted at position 3 by a trimethylsilyl group. It is used as internal reference in the NMR spectrum nuclear magnetic resonance for aqueous solvents (e.g. D2O). | 2.17 | 1 | 0 | monocarboxylic acid; organosilicon compound | NMR chemical shift reference compound |
1-methylxanthine 1-methylxanthine: urinary metabolite of caffeine. 1-methylxanthine : A monomethylxanthine having the methyl group located at the 1-position. It is a metabolite of caffeine in humans.. 1-methyl-7H-xanthine : A 1-methylxanthine tautomer where the imidazole proton is located at the 7-position. | 2.25 | 1 | 0 | 1-methylxanthine | mouse metabolite |
coenzyme a [no description available] | 6.93 | 1 | 0 | adenosine 3',5'-bisphosphate | coenzyme; Escherichia coli metabolite; mouse metabolite |
6-phosphogluconic acid gluconic acid-6-phosphate: structure. 6-phospho-D-gluconate : A monocarboxylic acid anion resulting from the removal of a proton from the carboxy group of 6-phospho-D-gluconic acid.. 6-phospho-D-gluconic acid : A gluconic acid phosphate having the phosphate group at the 6-position. It is an intermediate in the pentose phosphate pathway. | 2.25 | 1 | 0 | gluconic acid phosphate | fundamental metabolite |
succinyl-coenzyme a [no description available] | 2.31 | 1 | 0 | omega-carboxyacyl-CoA | Escherichia coli metabolite; inhibitor; mouse metabolite |
propionyl-coenzyme a propionyl-coenzyme A: RN given refers to parent cpd | 6.93 | 1 | 0 | acyl-CoA | Escherichia coli metabolite; metabolite; mouse metabolite |
alpha-hydroxyisocaproic acid alpha-hydroxyisocaproic acid: alpha-hydroxy analog of leucine; RN given refers to cpd without isomeric designation. 2-hydroxy-4-methylvaleric acid : A valeric acid derivative having a hydroxy substituent at the 2-position and a methyl substituent at the 4-position; an alpha-hydroxy analogue of leucine. A bacterial metabolite, it has also been isolated from amniotic fluid, was found in a patient with dihydrolipoyl dehydrogenase deficiency and is present in the urine of patients with short bowel syndrome. | 1.96 | 1 | 0 | 2-hydroxy fatty acid; branched-chain fatty acid | metabolite |
n-acetyldehydroalanine methyl ester N-acetyldehydroalanine methyl ester: modifies amino & sulfhydryl groups in amino acids & proteins; structure | 2.31 | 1 | 0 | ||
2-hydroxyisovaleric acid 2-hydroxyisovaleric acid: RN given refers to parent cpd without isomeric designation. 2-hydroxy-3-methylbutyric acid : A valine derivative that is valine in which the amino group has been replaced by a hydroxy group. | 1.96 | 1 | 0 | 2-hydroxy monocarboxylic acid | human metabolite |
cobalt Cobalt: A trace element that is a component of vitamin B12. It has the atomic symbol Co, atomic number 27, and atomic weight 58.93. It is used in nuclear weapons, alloys, and pigments. Deficiency in animals leads to anemia; its excess in humans can lead to erythrocytosis.. cobalt(1+) : A monovalent inorganic cation obtained from cobalt.. cobalt atom : A cobalt group element atom that has atomic number 27. | 2.06 | 1 | 0 | cobalt group element atom; metal allergen | micronutrient |
dityrosine dityrosine: o,o'-biphenol analog of tyrosine; isolated from insoluble protein of human cataractous lenses; structure. dityrosine : A biphenyl compound comprising two tyrosine residues linked at carbon-3 of their benzene rings. | 2.15 | 1 | 0 | biphenyls; non-proteinogenic alpha-amino acid; tyrosine derivative | biomarker |
valerates Valerates: Derivatives of valeric acid, including its salts and esters. | 1.96 | 1 | 0 | short-chain fatty acid anion; straight-chain saturated fatty acid anion | plant metabolite |
glycerophosphoethanolamine glycerol 3-phosphoethanolamine: a membrane lipid degradation product | 2.21 | 1 | 0 | phosphoethanolamine; sn-glycerol 3-phosphates | |
proline Proline: A non-essential amino acid that is synthesized from GLUTAMIC ACID. It is an essential component of COLLAGEN and is important for proper functioning of joints and tendons.. proline : An alpha-amino acid that is pyrrolidine bearing a carboxy substituent at position 2. | 2.13 | 1 | 0 | amino acid zwitterion; glutamine family amino acid; L-alpha-amino acid; proline; proteinogenic amino acid | algal metabolite; compatible osmolytes; Escherichia coli metabolite; micronutrient; mouse metabolite; nutraceutical; Saccharomyces cerevisiae metabolite |
biotin vitamin B7 : Any member of a group of vitamers that belong to the chemical structural class called biotins that exhibit biological activity against vitamin B7 deficiency. Vitamin B7 deficiency is very rare in individuals who take a normal balanced diet. Foods rich in biotin are egg yolk, liver, cereals, vegetables (spinach, mushrooms) and rice. Symptoms associated with vitamin B7 deficiency include thinning hair, scaly skin rashes around eyes, nose and mouth, and brittle nails. The vitamers include biotin and its ionized and salt forms. | 2.6 | 1 | 0 | biotins; vitamin B7 | coenzyme; cofactor; Escherichia coli metabolite; fundamental metabolite; human metabolite; mouse metabolite; nutraceutical; prosthetic group; Saccharomyces cerevisiae metabolite |
organophosphonates hydrogenphosphite : A divalent inorganic anion resulting from the removal of a proton from two of the hydroxy groups of phosphorous acid. | 2.01 | 1 | 0 | divalent inorganic anion; phosphite ion | |
3-hydroxyglutaric acid 3-hydroxyglutaric acid : A 3 hydroxy carboxylic acid that is glutaric acid which is substituted by a hydroxy group at position 3. It is a diagnostic marker for glutaric aciduria type I. | 2.51 | 2 | 0 | 3-hydroxy carboxylic acid; alpha,omega-dicarboxylic acid | human blood serum metabolite; human urinary metabolite |
isospaglumic acid isospaglumic acid: mediator in the sensitivity of animals to hyperbaric oxygenation; Naaxia is the tradename; apparently can have both a neuroprotective and a neurotoxic effect. Ac-Asp-Glu : A dipeptide composed of N-acetyl-L-aspartic acid and L-glutamic acid joined by a peptide linkage. | 2.06 | 1 | 0 | dipeptide | human metabolite |
n(delta)-acetylornithine N(delta)-acetylornithine: RN given refers to (L)-isomer. N(5)-acetyl-L-ornithine : An N(5)-acyl-L-ornithine in which the the acyl group is specified as acetyl. | 2.25 | 1 | 0 | acetyl-L-ornithine; N(5)-acetylornithine; N(5)-acyl-L-ornithine | |
lithium chloride Lithium Chloride: A salt of lithium that has been used experimentally as an immunomodulator.. lithium chloride : A metal chloride salt with a Li(+) counterion. | 2.1 | 1 | 0 | inorganic chloride; lithium salt | antimanic drug; geroprotector |
glycogen glycogen : A polydisperse, highly branched glucan composed of chains of D-glucopyranose residues in alpha(1->4) glycosidic linkage, joined together by alpha(1->6) glycosidic linkages. A small number of alpha(1->3) glycosidic linkages and some cumulative alpha(1->6) links also may occur. The branches in glycogen typically contain 8 to 12 glucose residues. | 2.11 | 1 | 0 | ||
d-2-hydroxyglutarate (R)-2-hydroxyglutaric acid : The (R)-enantiomer of 2-hydroxyglutaric acid. | 2.31 | 1 | 0 | 2-hydroxyglutaric acid | algal metabolite |
alpha-hydroxyglutarate, (l)-isomer [no description available] | 2.31 | 1 | 0 | 2-hydroxyglutaric acid | |
quinidine Quinidine: An optical isomer of quinine, extracted from the bark of the CHINCHONA tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular ACTION POTENTIALS, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission.. quinidine : A cinchona alkaloid consisting of cinchonine with the hydrogen at the 6-position of the quinoline ring substituted by methoxy. | 2.13 | 1 | 0 | cinchona alkaloid | alpha-adrenergic antagonist; anti-arrhythmia drug; antimalarial; drug allergen; EC 1.14.13.181 (13-deoxydaunorubicin hydroxylase) inhibitor; EC 3.6.3.44 (xenobiotic-transporting ATPase) inhibitor; muscarinic antagonist; P450 inhibitor; potassium channel blocker; sodium channel blocker |
fumaric acid fumaric acid: see also record for ferrous fumarate; use FUMARATES for general fumaric acid esters. fumaric acid : A butenedioic acid in which the C=C double bond has E geometry. It is an intermediate metabolite in the citric acid cycle. | 2.49 | 2 | 0 | butenedioic acid | food acidity regulator; fundamental metabolite; geroprotector |
farnesol Farnesol: A colorless liquid extracted from oils of plants such as citronella, neroli, cyclamen, and tuberose. It is an intermediate step in the biological synthesis of cholesterol from mevalonic acid in vertebrates. It has a delicate odor and is used in perfumery. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed). (2-trans,6-trans)-farnesol : The (2-trans,6-trans)-stereoisomer of farnesol.. farnesol : A farnesane sesquiterpenoid that is dodeca-2,6,10-triene substituted by methyl groups at positions 3, 7 and 11 and a hydroxy group at position 1. | 2.01 | 1 | 0 | farnesol | plant metabolite |
farnesyl pyrophosphate farnesyl pyrophosphate: a sesquiterpene that dimerizes to SQUALENE; RN given refers to cpd without isomeric designation. 2-trans,6-trans-farnesyl diphosphate : The trans,trans-stereoisomer of farnesyl diphosphate. | 2.01 | 1 | 0 | farnesyl diphosphate | Escherichia coli metabolite; mouse metabolite |
cerivastatin cerivastatin: cerivastatin is the ((E)-(+))-isomer; structure given in first source. cerivastatin : (3R,5S)-3,5-dihydroxyhept-6-enoic acid in which the (7E)-hydrogen is substituted by a 4-(4-fluorophenyl)-2,6-diisopropyl-5-(methoxymethyl)pyridin-3-yl group. Formerly used (as its sodium salt) to lower cholesterol and prevent cardiovascular disease, it was withdrawn from the market worldwide in 2001 following reports of a severe form of muscle toxicity. | 2.57 | 2 | 0 | dihydroxy monocarboxylic acid; pyridines; statin (synthetic) | |
decitabine [no description available] | 2.07 | 1 | 0 | 2'-deoxyribonucleoside | |
riboflavin vitamin B2 : Any member of a group of vitamers that belong to the chemical structural class called flavins that exhibit biological activity against vitamin B2 deficiency. Symptoms associated with vitamin B2 deficiency include glossitis, seborrhea, angular stomaitis, cheilosis and photophobia. The vitamers include riboflavin and its phosphate derivatives (and includes their salt, ionised and hydrate forms). | 2.45 | 2 | 0 | flavin; vitamin B2 | anti-inflammatory agent; antioxidant; cofactor; Escherichia coli metabolite; food colouring; fundamental metabolite; human urinary metabolite; mouse metabolite; photosensitizing agent; plant metabolite |
o,o-diacetyl tartaric acid anhydride O,O-diacetyl tartaric acid anhydride: RN given refers to (3R-trans)-isomer; used to monitor propranolol in human plasma; structure given in first source | 2.02 | 1 | 0 | ||
dimethyloxalylglycine dimethyloxallyl glycine: structure in first source | 2.31 | 1 | 0 | glycine derivative; methyl ester; secondary carboxamide | EC 1.14.11.29 (hypoxia-inducible factor-proline dioxygenase) inhibitor; neuroprotective agent |
dimethyl fumarate [no description available] | 2.31 | 1 | 0 | diester; enoate ester; methyl ester | antipsoriatic; immunomodulator |
flavin-adenine dinucleotide Flavin-Adenine Dinucleotide: A condensation product of riboflavin and adenosine diphosphate. The coenzyme of various aerobic dehydrogenases, e.g., D-amino acid oxidase and L-amino acid oxidase. (Lehninger, Principles of Biochemistry, 1982, p972) | 3.86 | 3 | 0 | flavin adenine dinucleotide; vitamin B2 | cofactor; Escherichia coli metabolite; human metabolite; mouse metabolite; prosthetic group |
sesquiterpenes [no description available] | 2.01 | 1 | 0 | ||
thiohydantoins Thiohydantoins: Sulfur analogs of hydantoins with one or both carbonyl groups replaced by thiocarbonyl groups. | 2.11 | 1 | 0 | ||
3-methylglutaconic acid (E)-3-methylglutaconic acid : A dicarboxylic acid comprising (E)-glutaconic acid carrying a 3-methyl substituent. | 2.1 | 1 | 0 | dicarboxylic acid | |
nadp [no description available] | 7.55 | 16 | 0 | ||
oxalomalic acid oxalomalic acid: structure | 2.06 | 1 | 0 | ||
quinine [no description available] | 2.13 | 1 | 0 | cinchona alkaloid | antimalarial; muscle relaxant; non-narcotic analgesic |
chaetomellic acid a chaetomellic acid A: structure given in first source; an inhibitor of farnesyl-protein transferase | 2.01 | 1 | 0 | ||
oxalylglycine oxalylglycine: structure given in first source. N-oxalylglycine : An amino dicarboxylic acid that is iminodiacetic acid with an oxo substituent. It is used as an inhibitor of alpha-ketoglutarate dependent (EC 1.14.11.*) enzymes. | 2.31 | 1 | 0 | amino dicarboxylic acid; N-acylglycine | EC 1.14.11.* (oxidoreductase acting on paired donors, 2-oxoglutarate as one donor, incorporating 1 atom each of oxygen into both donors) inhibitor |
glutaryl-coenzyme a [no description available] | 2.59 | 2 | 0 | glutaryl-CoAs | mouse metabolite |
dinoprost Dinoprost: A naturally occurring prostaglandin that has oxytocic, luteolytic, and abortifacient activities. Due to its vasocontractile properties, the compound has a variety of other biological actions.. prostaglandin F2alpha : A prostaglandins Falpha that is prosta-5,13-dien-1-oic acid substituted by hydroxy groups at positions 9, 11 and 15. It is a naturally occurring prostaglandin used to induce labor. | 2.15 | 1 | 0 | monocarboxylic acid; prostaglandins Falpha | human metabolite; mouse metabolite |
glutaconic acid glutaconic acid: RN given refers to parent cpd without isomeric designation; structure. glutaconic acid : A pentenedioic acid that is pent-2-ene substituted by carboxy groups at positions 1 and 5.. (E)-glutaconic acid : The (E)-isomer of glutaconic acid. | 1.95 | 1 | 0 | glutaconic acid | |
cholecalciferol Cholecalciferol: Derivative of 7-dehydroxycholesterol formed by ULTRAVIOLET RAYS breaking of the C9-C10 bond. It differs from ERGOCALCIFEROL in having a single bond between C22 and C23 and lacking a methyl group at C24.. calciol : A hydroxy seco-steroid that is (5Z,7E)-9,10-secocholesta-5,7,10(19)-triene in which the pro-S hydrogen at position 3 has been replaced by a hydroxy group. It is the inactive form of vitamin D3, being hydroxylated in the liver to calcidiol (25-hydroxyvitamin D3), which is then further hydroxylated in the kidney to give calcitriol (1,25-dihydroxyvitamin D3), the active hormone. | 2.05 | 1 | 0 | D3 vitamins; hydroxy seco-steroid; seco-cholestane; secondary alcohol; steroid hormone | geroprotector; human metabolite |
8-epi-prostaglandin f2alpha 8-epi-prostaglandin F2alpha: a potent preglomerular vasoconstrictor acting principally through thromboxane A2 receptor activation. 8-epi-prostaglandin F2alpha : An isoprostane that is prostaglandin F2alpha having inverted stereochemistry at the 8-position. | 2.15 | 1 | 0 | F2-isoprostane | biomarker; bronchoconstrictor agent; vasoconstrictor agent |
4-hydroxy-2-nonenal 4-hydroxy-2-nonenal: cytotoxic product from peroxidation of liver microsomal lipids; RN given refers to cpd without isomeric designation. 4-hydroxynon-2-enal : An enal consisting of non-2-ene having an oxo group at the 1-position and a hydroxy group at the 4-position.. 4-hydroxynonenal : A monounsaturated fatty aldehyde that is nonanal that has undergone dehydrogenation to introduce a double bond at any position in the aliphatic chain and in which a hydrogen at position 4 has been replaced by a hydroxy group. | 2.31 | 1 | 0 | 4-hydroxynon-2-enal; 4-hydroxynonenal | |
sirolimus Sirolimus: A macrolide compound obtained from Streptomyces hygroscopicus that acts by selectively blocking the transcriptional activation of cytokines thereby inhibiting cytokine production. It is bioactive only when bound to IMMUNOPHILINS. Sirolimus is a potent immunosuppressant and possesses both antifungal and antineoplastic properties.. sirolimus : A macrolide lactam isolated from Streptomyces hygroscopicus consisting of a 29-membered ring containing 4 trans double bonds, three of which are conjugated. It is an antibiotic, immunosupressive and antineoplastic agent. | 2.63 | 2 | 0 | antibiotic antifungal drug; cyclic acetal; cyclic ketone; ether; macrolide lactam; organic heterotricyclic compound; secondary alcohol | antibacterial drug; anticoronaviral agent; antineoplastic agent; bacterial metabolite; geroprotector; immunosuppressive agent; mTOR inhibitor |
barium Barium: An element of the alkaline earth group of metals. It has an atomic symbol Ba, atomic number 56, and atomic weight 138. All of its acid-soluble salts are poisonous. | 1.97 | 1 | 0 | alkaline earth metal atom; elemental barium | |
fumarates Fumarates: Compounds based on fumaric acid.. fumarate(2-) : A C4-dicarboxylate that is the E-isomer of but-2-enedioate(2-) | 4.61 | 4 | 0 | butenedioate; C4-dicarboxylate | human metabolite; metabolite; Saccharomyces cerevisiae metabolite |
oxalates Oxalates: Derivatives of OXALIC ACID. Included under this heading are a broad variety of acid forms, salts, esters, and amides that are derived from the ethanedioic acid structure. | 2.47 | 2 | 0 | ||
dizocilpine maleate Dizocilpine Maleate: A potent noncompetitive antagonist of the NMDA receptor (RECEPTORS, N-METHYL-D-ASPARTATE) used mainly as a research tool. The drug has been considered for the wide variety of neurodegenerative conditions or disorders in which NMDA receptors may play an important role. Its use has been primarily limited to animal and tissue experiments because of its psychotropic effects.. dizocilpine maleate : A maleate salt obtained by reaction of dizocilpine with one equivalent of maleic acid. | 2.1 | 1 | 0 | maleate salt; tetracyclic antidepressant | anaesthetic; anticonvulsant; neuroprotective agent; nicotinic antagonist; NMDA receptor antagonist |
hexanoylcarnitine hexanoylcarnitine: RN given refers to chloride salt; RN for parent cpd not available 11/89. O-hexanoylcarnitine : An O-acylcarnitine compound having hexanoyl as the acyl substituent. | 2.15 | 1 | 0 | hexanoate ester; O-acylcarnitine | human metabolite |
cystathionine Cystathionine: Sulfur-containing amino acid formed as an intermediate in the conversion of METHIONINE to CYSTEINE.. cystathionine : A modified amino acid generated by enzymic means from homocysteine and serine. | 2.21 | 1 | 0 | cysteine derivative | |
ribose ribopyranose : The pyranose form of ribose. | 1.99 | 1 | 0 | D-ribose; ribopyranose | |
erastin erastin: an antineoplastic agent; structure in first source. erastin : A member of the class of quinazolines that is quinazolin-4(3H)-one in which the hydrogens at positions 2 and 3 are replaced by 1-{4-[(4-chlorophenoxy)acetyl]piperazin-1-yl}ethyl and 2-ethoxyphenyl groups, respectively. It is an inhibitor of voltage-dependent anion-selective channels (VDAC2 and VDAC3) and a potent ferroptosis inducer. | 2.21 | 1 | 0 | aromatic ether; diether; monochlorobenzenes; N-acylpiperazine; N-alkylpiperazine; quinazolines; tertiary carboxamide | antineoplastic agent; ferroptosis inducer; voltage-dependent anion channel inhibitor |
nad NAD(1-) : An anionic form of nicotinamide adenine dinucleotide arising from deprotonation of the two OH groups of the diphosphate moiety. | 4.55 | 7 | 0 | organophosphate oxoanion | cofactor; human metabolite; hydrogen acceptor; Saccharomyces cerevisiae metabolite |
sodium oxybate Sodium Oxybate: The sodium salt of 4-hydroxybutyric acid. It is used for both induction and maintenance of ANESTHESIA. | 3.78 | 3 | 0 | ||
navitoclax [no description available] | 2.15 | 1 | 0 | aryl sulfide; monochlorobenzenes; morpholines; N-sulfonylcarboxamide; organofluorine compound; piperazines; secondary amino compound; sulfone; tertiary amino compound | antineoplastic agent; apoptosis inducer; B-cell lymphoma 2 inhibitor |
interleukin-8 Interleukin-8: A member of the CXC chemokine family that plays a role in the regulation of the acute inflammatory response. It is secreted by variety of cell types and induces CHEMOTAXIS of NEUTROPHILS and other inflammatory cells. | 2.13 | 1 | 0 | ||
abt-199 venetoclax: A BCL-2 inhibitor with antineoplastic activity that is used in the treatment of CHRONIC LYMPHOCYTIC LEUKEMIA associated with chromosome 17p deletion; structure in first source.. venetoclax : A member of the class of pyrrolopyridines that is a potent inhibitor of the antiapoptotic protein B-cell lymphoma 2. It is used for treamtment of chronic lymphocytic leukemia with 17p deletion. | 2.11 | 1 | 0 | aromatic ether; C-nitro compound; monochlorobenzenes; N-alkylpiperazine; N-arylpiperazine; N-sulfonylcarboxamide; oxanes; pyrrolopyridine | antineoplastic agent; apoptosis inducer; B-cell lymphoma 2 inhibitor |
xl765 [no description available] | 2.21 | 1 | 0 | aromatic amine; aromatic ether; benzamides; quinoxaline derivative; sulfonamide | antineoplastic agent; EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor; mTOR inhibitor |
heme Heme: The color-furnishing portion of hemoglobin. It is found free in tissues and as the prosthetic group in many hemeproteins.. ferroheme : Any iron(II)--porphyrin coordination complex.. ferroheme b : Heme b in which the iron has oxidation state +2.. heme : A heme is any tetrapyrrolic chelate of iron. | 2.31 | 1 | 0 | ||
ascorbic acid Ascorbic Acid: A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant.. L-ascorbic acid : The L-enantiomer of ascorbic acid and conjugate acid of L-ascorbate.. L-ascorbate : The L-enantiomer of ascorbate and conjugate base of L-ascorbic acid, arising from selective deprotonation of the 3-hydroxy group. Required for a range of essential metabolic reactions in all animals and plants.. vitamin C : Any member of a group of vitamers that belong to the chemical structural class called butenolides that exhibit biological activity against vitamin C deficiency in animals. The vitamers include L-ascorbic acid and its salt, ionized and oxidized forms. | 3.15 | 5 | 0 | ascorbic acid; vitamin C | coenzyme; cofactor; flour treatment agent; food antioxidant; food colour retention agent; geroprotector; plant metabolite; skin lightening agent |
ascorbate-2-phosphate ascorbate-2-phosphate: inhibitor of ascorbate-2-sulfate sulfohydrolase from bovine liver. L-ascorbic acid 2-phosphate : An aldonolactone phosphate that is the 2-phosphate ester of L-ascorbic acid. It can stimulate collagen formation. | 2.41 | 1 | 0 | aldonolactone phosphate | |
agi-5198 AGI-5198: inhibits isocitrate dehydrogenase 1; structure in first source | 4.46 | 6 | 0 | ||
oleuropein aglycone oleuropein aglycone: an agonist of both TRPA1 and TRPV1 receptors. oleuropein aglycone : A secoiridoid that is the methyl ester of 3,4-dihydro-2H-pyran-5-carboxylic acid which is substituted at positions 2, 3, and 4 by hydroxy, ethylidene, and carboxymethyl groups, respectively and in which the carboxylic acid moiety of the carboxymethyl substituent has been converted to the corresponding 3,4-dihydroxyphenethyl ester (the 2R,3E,4S stereoisomer). The most important phenolic compound present in olive cultivars. | 2.21 | 1 | 0 | catechols; diester; lactol; methyl ester; pyrans; secoiridoid | anti-inflammatory agent; antioxidant; mTOR inhibitor; neuroprotective agent; plant metabolite; TRPA1 channel agonist |
agi-6780 AGI-6780: inhibits isocitrate dehydrogenases 1 and 2; structure in first source | 3 | 1 | 0 | ||
cb-839 [no description available] | 2.13 | 1 | 0 | ||
ivosidenib ivosidenib: an inhibitor of isocitrate dehydrogenase 1 (IDH1) for treatment of acute myeloid leukemia (AML). ivosidenib : A tertiary carboxamide resulting from the formal condensation of the carboxy group of (2S)-1-(4-cyanopyridin-2-yl)-5-oxopyrrolidine-2-carboxylic acid with the secondary amino group of (2S)-2-(2-chlorophenyl)-N-(3,3-difluorocyclobutyl)-2-[(5-fluoropyridin-3-yl)amino]acetamide. It is approved by the FDA for the treatment of acute myeloid leukemia (AML) in patients with an isocitrate dehydrogenase-1 (IDH1) mutation. | 4.96 | 2 | 1 | cyanopyridine; monochlorobenzenes; organofluorine compound; pyrrolidin-2-ones; secondary carboxamide; tertiary carboxamide | antineoplastic agent; EC 1.1.1.42 (isocitrate dehydrogenase) inhibitor |
glutaminase [no description available] | 3.19 | 5 | 0 | ||
cobamamide cobamamide : A member of the class of cobalamins that is vitamin B12 in which the cyano group is replaced by a 5'-deoxyadenos-5'-yl moiety. It is one of the two metabolically active form of vitamin B12. | 2.72 | 3 | 0 | ||
vitamin b 12 Vitamin B 12: A cobalt-containing coordination compound produced by intestinal micro-organisms and found also in soil and water. Higher plants do not concentrate vitamin B 12 from the soil and so are a poor source of the substance as compared with animal tissues. INTRINSIC FACTOR is important for the assimilation of vitamin B 12. | 2.5 | 2 | 0 | ||
guanine [no description available] | 2.15 | 1 | 0 | 2-aminopurines; oxopurine; purine nucleobase | algal metabolite; Escherichia coli metabolite; human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
folic acid folcysteine: used to promote fertility in chickens. vitamin B9 : Any B-vitamin that exhibits biological activity against vitamin B9 deficiency. Vitamin B9 refers to the many forms of folic acid and its derivatives, including tetrahydrofolic acid (the active form), methyltetrahydrofolate (the primary form found in blood), methenyltetrahydrofolate, folinic acid amongst others. They are present in abundance in green leafy vegetables, citrus fruits, and animal products. Lack of vitamin B9 leads to anemia, a condition in which the body cannot produce sufficient number of red blood cells. Symptoms of vitamin B9 deficiency include fatigue, muscle weakness, and pale skin. | 2.02 | 1 | 0 | folic acids; N-acyl-amino acid | human metabolite; mouse metabolite; nutrient |
dacarbazine (E)-dacarbazine : A dacarbazine in which the N=N double bond adopts a trans-configuration. | 2.1 | 1 | 0 | dacarbazine | |
zaprinast zaprinast: anaphylaxis inhibitor; structure | 2.1 | 1 | 0 | triazolopyrimidines | |
8-hydroxy-2'-deoxyguanosine 8-Hydroxy-2'-Deoxyguanosine: Common oxidized form of deoxyguanosine in which C-8 position of guanine base has a carbonyl group.. 8-hydroxy-2'-deoxyguanosine : Guanosine substituted at the purine 8-position by a hydroxy group. It is used as a biomarker of oxidative DNA damage. | 2.31 | 1 | 0 | guanosines | biomarker |
methanopterin methanopterin: isolated from Methanobacterium thermautotrophicum. methanopterin : A member of the class of methanopterins obtained by formal dehydrogenation at positions 5, 6, 7 and 8 of tetrahydromethanopterin. The parent of the class of methanopterins | 2.4 | 2 | 0 | methanopterins |
Condition | Indicated | Relationship Strength | Studies | Trials |
---|---|---|---|---|
Glucose Metabolic Disorder [description not available] | 0 | 2.31 | 1 | 0 |
Benign Neoplasms [description not available] | 0 | 11.6 | 53 | 1 |
Neoplasms New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms. | 0 | 11.6 | 53 | 1 |
Carcinogenesis The origin, production or development of cancer through genotypic and phenotypic changes which upset the normal balance between cell proliferation and cell death. Carcinogenesis generally requires a constellation of steps, which may occur quickly or over a period of many years. | 0 | 6.07 | 13 | 0 |
Anoxemia [description not available] | 0 | 4.41 | 4 | 0 |
Benign Neoplasms, Brain [description not available] | 0 | 13.45 | 106 | 3 |
Cell Transformation, Neoplastic Cell changes manifested by escape from control mechanisms, increased growth potential, alterations in the cell surface, karyotypic abnormalities, morphological and biochemical deviations from the norm, and other attributes conferring the ability to invade, metastasize, and kill. | 0 | 6.62 | 12 | 0 |
Glial Cell Tumors [description not available] | 0 | 13.86 | 123 | 3 |
Hypoxia Sub-optimal OXYGEN levels in the ambient air of living organisms. | 0 | 4.41 | 4 | 0 |
Brain Neoplasms Neoplasms of the intracranial components of the central nervous system, including the cerebral hemispheres, basal ganglia, hypothalamus, thalamus, brain stem, and cerebellum. Brain neoplasms are subdivided into primary (originating from brain tissue) and secondary (i.e., metastatic) forms. Primary neoplasms are subdivided into benign and malignant forms. In general, brain tumors may also be classified by age of onset, histologic type, or presenting location in the brain. | 0 | 13.45 | 106 | 3 |
Glioma Benign and malignant central nervous system neoplasms derived from glial cells (i.e., astrocytes, oligodendrocytes, and ependymocytes). Astrocytes may give rise to astrocytomas (ASTROCYTOMA) or glioblastoma multiforme (see GLIOBLASTOMA). Oligodendrocytes give rise to oligodendrogliomas (OLIGODENDROGLIOMA) and ependymocytes may undergo transformation to become EPENDYMOMA; CHOROID PLEXUS NEOPLASMS; or colloid cysts of the third ventricle. (From Escourolle et al., Manual of Basic Neuropathology, 2nd ed, p21) | 0 | 13.86 | 123 | 3 |
Paraganglioma, Gangliocytic [description not available] | 0 | 2.31 | 1 | 0 |
Carotid Body Tumor Benign paraganglioma at the bifurcation of the COMMON CAROTID ARTERIES. It can encroach on the parapharyngeal space and produce dysphagia, pain, and cranial nerve palsies. | 0 | 2.31 | 1 | 0 |
Paraganglioma A neural crest tumor usually derived from the chromoreceptor tissue of a paraganglion, such as the carotid body, or medulla of the adrenal gland (usually called a chromaffinoma or pheochromocytoma). It is more common in women than in men. (Stedman, 25th ed; from Segen, Dictionary of Modern Medicine, 1992) | 0 | 2.31 | 1 | 0 |
Auricular Fibrillation [description not available] | 0 | 2.31 | 1 | 0 |
Cardiac Failure [description not available] | 0 | 2.31 | 1 | 0 |
Atrial Fibrillation Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation. | 0 | 2.31 | 1 | 0 |
Heart Failure A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. Heart failure can be caused by structural defects, functional abnormalities (VENTRICULAR DYSFUNCTION), or a sudden overload beyond its capacity. Chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as MYOCARDIAL INFARCTION. | 0 | 2.31 | 1 | 0 |
Absence Seizure [description not available] | 0 | 2.96 | 4 | 0 |
Seizures Clinical or subclinical disturbances of cortical function due to a sudden, abnormal, excessive, and disorganized discharge of brain cells. Clinical manifestations include abnormal motor, sensory and psychic phenomena. Recurrent seizures are usually referred to as EPILEPSY or seizure disorder. | 0 | 2.96 | 4 | 0 |
Brain Diseases, Metabolic, Familial [description not available] | 0 | 6.94 | 37 | 0 |
Aura [description not available] | 0 | 5.2 | 11 | 0 |
Epilepsy A disorder characterized by recurrent episodes of paroxysmal brain dysfunction due to a sudden, disorderly, and excessive neuronal discharge. Epilepsy classification systems are generally based upon: (1) clinical features of the seizure episodes (e.g., motor seizure), (2) etiology (e.g., post-traumatic), (3) anatomic site of seizure origin (e.g., frontal lobe seizure), (4) tendency to spread to other structures in the brain, and (5) temporal patterns (e.g., nocturnal epilepsy). (From Adams et al., Principles of Neurology, 6th ed, p313) | 0 | 5.2 | 11 | 0 |
Cerebral Infarction, Middle Cerebral Artery [description not available] | 0 | 2.41 | 1 | 0 |
Apoplexy [description not available] | 0 | 2.41 | 1 | 0 |
Cognitive Decline [description not available] | 0 | 2.41 | 1 | 0 |
Acute Ischemic Stroke [description not available] | 0 | 2.41 | 1 | 0 |
Acute Brain Injuries [description not available] | 0 | 2.41 | 1 | 0 |
Cerebral Ischemia [description not available] | 0 | 2.41 | 1 | 0 |
Ischemic Stroke Stroke due to BRAIN ISCHEMIA resulting in interruption or reduction of blood flow to a part of the brain. When obstruction is due to a BLOOD CLOT formed within in a cerebral blood vessel it is a thrombotic stroke. When obstruction is formed elsewhere and moved to block a cerebral blood vessel (see CEREBRAL EMBOLISM) it is referred to as embolic stroke. Wake-up stroke refers to ischemic stroke occurring during sleep while cryptogenic stroke refers to ischemic stroke of unknown origin. | 0 | 2.41 | 1 | 0 |
Brain Injuries Acute and chronic (see also BRAIN INJURIES, CHRONIC) injuries to the brain, including the cerebral hemispheres, CEREBELLUM, and BRAIN STEM. Clinical manifestations depend on the nature of injury. Diffuse trauma to the brain is frequently associated with DIFFUSE AXONAL INJURY or COMA, POST-TRAUMATIC. Localized injuries may be associated with NEUROBEHAVIORAL MANIFESTATIONS; HEMIPARESIS, or other focal neurologic deficits. | 0 | 2.41 | 1 | 0 |
Brain Ischemia Localized reduction of blood flow to brain tissue due to arterial obstruction or systemic hypoperfusion. This frequently occurs in conjunction with brain hypoxia (HYPOXIA, BRAIN). Prolonged ischemia is associated with BRAIN INFARCTION. | 0 | 2.41 | 1 | 0 |
Infarction, Middle Cerebral Artery NECROSIS occurring in the MIDDLE CEREBRAL ARTERY distribution system which brings blood to the entire lateral aspects of each CEREBRAL HEMISPHERE. Clinical signs include impaired cognition; APHASIA; AGRAPHIA; weak and numbness in the face and arms, contralaterally or bilaterally depending on the infarction. | 0 | 2.41 | 1 | 0 |
Stroke A group of pathological conditions characterized by sudden, non-convulsive loss of neurological function due to BRAIN ISCHEMIA or INTRACRANIAL HEMORRHAGES. Stroke is classified by the type of tissue NECROSIS, such as the anatomic location, vasculature involved, etiology, age of the affected individual, and hemorrhagic vs. non-hemorrhagic nature. (From Adams et al., Principles of Neurology, 6th ed, pp777-810) | 0 | 2.41 | 1 | 0 |
Cognitive Dysfunction Diminished or impaired mental and/or intellectual function. | 0 | 2.41 | 1 | 0 |
Adenocarcinoma, Basal Cell [description not available] | 0 | 2.58 | 2 | 0 |
Cancer of Colon [description not available] | 0 | 2.63 | 2 | 0 |
Adenocarcinoma A malignant epithelial tumor with a glandular organization. | 0 | 2.58 | 2 | 0 |
Colonic Neoplasms Tumors or cancer of the COLON. | 0 | 2.63 | 2 | 0 |
Aerobic Glycolysis, Oncologic [description not available] | 0 | 2.41 | 1 | 0 |
Acute Myelogenous Leukemia [description not available] | 0 | 11.2 | 35 | 3 |
Leukemia, Myeloid, Acute Clonal expansion of myeloid blasts in bone marrow, blood, and other tissue. Myeloid leukemias develop from changes in cells that normally produce NEUTROPHILS; BASOPHILS; EOSINOPHILS; and MONOCYTES. | 0 | 11.2 | 35 | 3 |
Cardiomyopathies, Primary [description not available] | 0 | 3.16 | 5 | 0 |
Cardiomyopathies A group of diseases in which the dominant feature is the involvement of the CARDIAC MUSCLE itself. Cardiomyopathies are classified according to their predominant pathophysiological features (DILATED CARDIOMYOPATHY; HYPERTROPHIC CARDIOMYOPATHY; RESTRICTIVE CARDIOMYOPATHY) or their etiological/pathological factors (CARDIOMYOPATHY, ALCOHOLIC; ENDOCARDIAL FIBROELASTOSIS). | 0 | 3.16 | 5 | 0 |
Bile Duct Cancer [description not available] | 0 | 5.62 | 14 | 0 |
Bile Duct Neoplasms Tumors or cancer of the BILE DUCTS. | 0 | 5.62 | 14 | 0 |
Atresia, Biliary [description not available] | 0 | 4.02 | 9 | 0 |
Bile Duct Obstruction [description not available] | 0 | 4.02 | 9 | 0 |
Biliary Atresia Progressive destruction or the absence of all or part of the extrahepatic BILE DUCTS, resulting in the complete obstruction of BILE flow. Usually, biliary atresia is found in infants and accounts for one third of the neonatal cholestatic JAUNDICE. | 0 | 4.02 | 9 | 0 |
Cholestasis Impairment of bile flow due to obstruction in small bile ducts (INTRAHEPATIC CHOLESTASIS) or obstruction in large bile ducts (EXTRAHEPATIC CHOLESTASIS). | 0 | 4.02 | 9 | 0 |
Brain Stem Neoplasms, Primary [description not available] | 0 | 2.6 | 1 | 0 |
Brain Stem Neoplasms Benign and malignant intra-axial tumors of the MESENCEPHALON; PONS; or MEDULLA OBLONGATA of the BRAIN STEM. Primary and metastatic neoplasms may occur in this location. Clinical features include ATAXIA, cranial neuropathies (see CRANIAL NERVE DISEASES), NAUSEA, hemiparesis (see HEMIPLEGIA), and quadriparesis. Primary brain stem neoplasms are more frequent in children. Histologic subtypes include GLIOMA; HEMANGIOBLASTOMA; GANGLIOGLIOMA; and EPENDYMOMA. | 0 | 2.6 | 1 | 0 |
Cardiovascular Diseases Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM. | 0 | 2.6 | 1 | 0 |
HbS Disease [description not available] | 0 | 2.6 | 1 | 0 |
Anemia, Sickle Cell A disease characterized by chronic hemolytic anemia, episodic painful crises, and pathologic involvement of many organs. It is the clinical expression of homozygosity for hemoglobin S. | 0 | 2.6 | 1 | 0 |
Asthma, Bronchial [description not available] | 0 | 2.6 | 1 | 0 |
Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. | 0 | 5.03 | 14 | 0 |
Asthma A form of bronchial disorder with three distinct components: airway hyper-responsiveness (RESPIRATORY HYPERSENSITIVITY), airway INFLAMMATION, and intermittent AIRWAY OBSTRUCTION. It is characterized by spasmodic contraction of airway smooth muscle, WHEEZING, and dyspnea (DYSPNEA, PAROXYSMAL). | 0 | 2.6 | 1 | 0 |
Anaplastic Astrocytoma [description not available] | 0 | 5.21 | 10 | 0 |
Astrocytoma Neoplasms of the brain and spinal cord derived from glial cells which vary from histologically benign forms to highly anaplastic and malignant tumors. Fibrillary astrocytomas are the most common type and may be classified in order of increasing malignancy (grades I through IV). In the first two decades of life, astrocytomas tend to originate in the cerebellar hemispheres; in adults, they most frequently arise in the cerebrum and frequently undergo malignant transformation. (From Devita et al., Cancer: Principles and Practice of Oncology, 5th ed, pp2013-7; Holland et al., Cancer Medicine, 3d ed, p1082) | 0 | 5.21 | 10 | 0 |
Atrophy, Muscle [description not available] | 0 | 2.6 | 1 | 0 |
Cachexia General ill health, malnutrition, and weight loss, usually associated with chronic disease. | 0 | 2.6 | 1 | 0 |
Muscular Atrophy Derangement in size and number of muscle fibers occurring with aging, reduction in blood supply, or following immobilization, prolonged weightlessness, malnutrition, and particularly in denervation. | 0 | 2.6 | 1 | 0 |
Bone Cancer [description not available] | 0 | 4.53 | 8 | 0 |
Bone Neoplasms Tumors or cancer located in bone tissue or specific BONES. | 0 | 4.53 | 8 | 0 |
Chondrosarcoma A slowly growing malignant neoplasm derived from cartilage cells, occurring most frequently in pelvic bones or near the ends of long bones, in middle-aged and old people. Most chondrosarcomas arise de novo, but some may develop in a preexisting benign cartilaginous lesion or in patients with ENCHONDROMATOSIS. (Stedman, 25th ed) | 0 | 4.43 | 7 | 0 |
Nerve Degeneration Loss of functional activity and trophic degeneration of nerve axons and their terminal arborizations following the destruction of their cells of origin or interruption of their continuity with these cells. The pathology is characteristic of neurodegenerative diseases. Often the process of nerve degeneration is studied in research on neuroanatomical localization and correlation of the neurophysiology of neural pathways. | 0 | 2.75 | 3 | 0 |
Ischemia A hypoperfusion of the BLOOD through an organ or tissue caused by a PATHOLOGIC CONSTRICTION or obstruction of its BLOOD VESSELS, or an absence of BLOOD CIRCULATION. | 0 | 2.21 | 1 | 0 |
Cancer of Prostate [description not available] | 0 | 2.25 | 1 | 0 |
Invasiveness, Neoplasm [description not available] | 0 | 2.69 | 2 | 0 |
Prostatic Neoplasms Tumors or cancer of the PROSTATE. | 0 | 2.25 | 1 | 0 |
Lymphoma, Primary Effusion A rare neoplasm of large B-cells usually presenting as serious effusions without detectable tumor masses. The most common sites of involvement are the pleural, pericardial, and peritoneal cavities. It is associated with HUMAN HERPESVIRUS 8, most often occurring in the setting of immunodeficiency. | 0 | 2.25 | 1 | 0 |
Astrocytoma, Grade IV [description not available] | 0 | 6.2 | 16 | 0 |
Glioblastoma A malignant form of astrocytoma histologically characterized by pleomorphism of cells, nuclear atypia, microhemorrhage, and necrosis. They may arise in any region of the central nervous system, with a predilection for the cerebral hemispheres, basal ganglia, and commissural pathways. Clinical presentation most frequently occurs in the fifth or sixth decade of life with focal neurologic signs or seizures. | 0 | 6.2 | 16 | 0 |
Genome Instability [description not available] | 0 | 3.17 | 1 | 0 |
Colitis, Mucous [description not available] | 0 | 2.25 | 1 | 0 |
Anxiety Feelings or emotions of dread, apprehension, and impending disaster but not disabling as with ANXIETY DISORDERS. | 0 | 2.25 | 1 | 0 |
Depression Depressive states usually of moderate intensity in contrast with MAJOR DEPRESSIVE DISORDER present in neurotic and psychotic disorders. | 0 | 2.25 | 1 | 0 |
Diarrhea An increased liquidity or decreased consistency of FECES, such as running stool. Fecal consistency is related to the ratio of water-holding capacity of insoluble solids to total water, rather than the amount of water present. Diarrhea is not hyperdefecation or increased fecal weight. | 0 | 2.25 | 1 | 0 |
Irritable Bowel Syndrome A disorder with chronic or recurrent colonic symptoms without a clearcut etiology. This condition is characterized by chronic or recurrent ABDOMINAL PAIN, bloating, MUCUS in FECES, and an erratic disturbance of DEFECATION. | 0 | 2.25 | 1 | 0 |
Sensitivity and Specificity Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed) | 0 | 4.19 | 15 | 0 |
Disease Exacerbation [description not available] | 0 | 5.72 | 11 | 0 |
Fatty Liver, Nonalcoholic [description not available] | 0 | 2.31 | 1 | 0 |
Obesity A status with BODY WEIGHT that is grossly above the recommended standards, usually due to accumulation of excess FATS in the body. The standards may vary with age, sex, genetic or cultural background. In the BODY MASS INDEX, a BMI greater than 30.0 kg/m2 is considered obese, and a BMI greater than 40.0 kg/m2 is considered morbidly obese (MORBID OBESITY). | 0 | 2.31 | 1 | 0 |
Non-alcoholic Fatty Liver Disease Fatty liver finding without excessive ALCOHOL CONSUMPTION. | 0 | 2.31 | 1 | 0 |
Preleukemia Conditions in which the abnormalities in the peripheral blood or bone marrow represent the early manifestations of acute leukemia, but in which the changes are not of sufficient magnitude or specificity to permit a diagnosis of acute leukemia by the usual clinical criteria. | 0 | 2.31 | 1 | 0 |
Enlarged Spleen [description not available] | 0 | 2.31 | 1 | 0 |
Thrombopenia [description not available] | 0 | 2.31 | 1 | 0 |
Anemia A reduction in the number of circulating ERYTHROCYTES or in the quantity of HEMOGLOBIN. | 0 | 2.61 | 2 | 0 |
Thrombocytopenia A subnormal level of BLOOD PLATELETS. | 0 | 2.31 | 1 | 0 |
Colorectal Cancer [description not available] | 0 | 4.64 | 5 | 1 |
Colorectal Neoplasms Tumors or cancer of the COLON or the RECTUM or both. Risk factors for colorectal cancer include chronic ULCERATIVE COLITIS; FAMILIAL POLYPOSIS COLI; exposure to ASBESTOS; and irradiation of the CERVIX UTERI. | 0 | 4.64 | 5 | 1 |
Malignant Melanoma [description not available] | 0 | 2.31 | 1 | 0 |
Metastase [description not available] | 0 | 2.84 | 3 | 0 |
Melanoma A malignant neoplasm derived from cells that are capable of forming melanin, which may occur in the skin of any part of the body, in the eye, or, rarely, in the mucous membranes of the genitalia, anus, oral cavity, or other sites. It occurs mostly in adults and may originate de novo or from a pigmented nevus or malignant lentigo. Melanomas frequently metastasize widely, and the regional lymph nodes, liver, lungs, and brain are likely to be involved. The incidence of malignant skin melanomas is rising rapidly in all parts of the world. (Stedman, 25th ed; from Rook et al., Textbook of Dermatology, 4th ed, p2445) | 0 | 2.31 | 1 | 0 |
Neoplasm Metastasis The transfer of a neoplasm from one organ or part of the body to another remote from the primary site. | 0 | 2.84 | 3 | 0 |
Carcinoma, Non-Small Cell Lung [description not available] | 0 | 2.63 | 2 | 0 |
Cancer of Lung [description not available] | 0 | 2.9 | 3 | 0 |
Carcinoma, Non-Small-Cell Lung A heterogeneous aggregate of at least three distinct histological types of lung cancer, including SQUAMOUS CELL CARCINOMA; ADENOCARCINOMA; and LARGE CELL CARCINOMA. They are dealt with collectively because of their shared treatment strategy. | 0 | 2.63 | 2 | 0 |
Lung Neoplasms Tumors or cancer of the LUNG. | 0 | 2.9 | 3 | 0 |
Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. | 0 | 3.26 | 6 | 0 |
Fibrosarcoma A sarcoma derived from deep fibrous tissue, characterized by bundles of immature proliferating fibroblasts with variable collagen formation, which tends to invade locally and metastasize by the bloodstream. (Stedman, 25th ed) | 0 | 2.83 | 3 | 0 |
Muscle Disorders [description not available] | 0 | 3.36 | 2 | 0 |
Muscular Diseases Acquired, familial, and congenital disorders of SKELETAL MUSCLE and SMOOTH MUSCLE. | 0 | 3.36 | 2 | 0 |
Allergic Encephalomyelitis [description not available] | 0 | 3.06 | 1 | 0 |
Anaplastic Oligodendroglioma [description not available] | 0 | 5.41 | 9 | 0 |
Oligodendroglioma A relatively slow-growing glioma that is derived from oligodendrocytes and tends to occur in the cerebral hemispheres, thalamus, or lateral ventricle. They may present at any age, but are most frequent in the third to fifth decades, with an earlier incidence peak in the first decade. Histologically, these tumors are encapsulated, relatively avascular, and tend to form cysts and microcalcifications. Neoplastic cells tend to have small round nuclei surrounded by unstained nuclei. The tumors may vary from well-differentiated to highly anaplastic forms. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2052; Adams et al., Principles of Neurology, 6th ed, p655) | 0 | 5.41 | 9 | 0 |
Local Neoplasm Recurrence [description not available] | 0 | 3.95 | 2 | 1 |
Breast Cancer [description not available] | 0 | 3.38 | 6 | 0 |
Breast Neoplasms Tumors or cancer of the human BREAST. | 0 | 3.38 | 6 | 0 |
Genetic Predisposition [description not available] | 0 | 4.08 | 5 | 0 |
Cholangiocellular Carcinoma [description not available] | 0 | 4.59 | 5 | 0 |
Cholangiocarcinoma A malignant tumor arising from the epithelium of the BILE DUCTS. | 0 | 4.59 | 5 | 0 |
Kahler Disease [description not available] | 0 | 3.09 | 1 | 0 |
Multiple Myeloma A malignancy of mature PLASMA CELLS engaging in monoclonal immunoglobulin production. It is characterized by hyperglobulinemia, excess Bence-Jones proteins (free monoclonal IMMUNOGLOBULIN LIGHT CHAINS) in the urine, skeletal destruction, bone pain, and fractures. Other features include ANEMIA; HYPERCALCEMIA; and RENAL INSUFFICIENCY. | 0 | 3.09 | 1 | 0 |
Colitis Gravis [description not available] | 0 | 2.17 | 1 | 0 |
Innate Inflammatory Response [description not available] | 0 | 2.87 | 3 | 0 |
Colitis Inflammation of the COLON section of the large intestine (INTESTINE, LARGE), usually with symptoms such as DIARRHEA (often with blood and mucus), ABDOMINAL PAIN, and FEVER. | 0 | 2.17 | 1 | 0 |
Colitis, Ulcerative Inflammation of the COLON that is predominantly confined to the MUCOSA. Its major symptoms include DIARRHEA, rectal BLEEDING, the passage of MUCUS, and ABDOMINAL PAIN. | 0 | 2.17 | 1 | 0 |
Inflammation A pathological process characterized by injury or destruction of tissues caused by a variety of cytologic and chemical reactions. It is usually manifested by typical signs of pain, heat, redness, swelling, and loss of function. | 0 | 2.87 | 3 | 0 |
Chloroma [description not available] | 0 | 2.17 | 1 | 0 |
Sarcoma, Myeloid An extramedullary tumor of immature MYELOID CELLS or MYELOBLASTS. Granulocytic sarcoma usually occurs with or follows the onset of ACUTE MYELOID LEUKEMIA. | 0 | 2.17 | 1 | 0 |
Dysmyelopoietic Syndromes [description not available] | 0 | 2.17 | 1 | 0 |
Myelodysplastic Syndromes Clonal hematopoietic stem cell disorders characterized by dysplasia in one or more hematopoietic cell lineages. They predominantly affect patients over 60, are considered preleukemic conditions, and have high probability of transformation into ACUTE MYELOID LEUKEMIA. | 0 | 2.17 | 1 | 0 |
Diabetes Mellitus, Adult-Onset [description not available] | 0 | 2.17 | 1 | 0 |
Diabetes Mellitus, Type 2 A subclass of DIABETES MELLITUS that is not INSULIN-responsive or dependent (NIDDM). It is characterized initially by INSULIN RESISTANCE and HYPERINSULINEMIA; and eventually by GLUCOSE INTOLERANCE; HYPERGLYCEMIA; and overt diabetes. Type II diabetes mellitus is no longer considered a disease exclusively found in adults. Patients seldom develop KETOSIS but often exhibit OBESITY. | 0 | 2.17 | 1 | 0 |
Central Nervous System Neoplasm [description not available] | 0 | 4.39 | 4 | 0 |
Central Nervous System Neoplasms Benign and malignant neoplastic processes that arise from or secondarily involve the brain, spinal cord, or meninges. | 0 | 4.39 | 4 | 0 |
Cancer of Kidney [description not available] | 0 | 3.03 | 4 | 0 |
Kidney Neoplasms Tumors or cancers of the KIDNEY. | 0 | 3.03 | 4 | 0 |
Necrosis The death of cells in an organ or tissue due to disease, injury or failure of the blood supply. | 0 | 2.17 | 1 | 0 |
Angiogenesis, Pathologic [description not available] | 0 | 2.21 | 1 | 0 |
Esophageal Squamous Cell Carcinoma A carcinoma that originates usually from cells on the surface of the middle and lower third of the ESOPHAGUS. Tumor cells exhibit typical squamous morphology and form large polypoid lesions. Mutations in RNF6, LZTS1, TGFBR2, DEC1, and WWOX1 genes are associated with this cancer. | 0 | 2.17 | 1 | 0 |
Cancer of Esophagus [description not available] | 0 | 2.17 | 1 | 0 |
Esophageal Neoplasms Tumors or cancer of the ESOPHAGUS. | 0 | 2.17 | 1 | 0 |
Lactic Acidosis [description not available] | 0 | 2.45 | 2 | 0 |
Acidosis, Lactic Acidosis caused by accumulation of lactic acid more rapidly than it can be metabolized. It may occur spontaneously or in association with diseases such as DIABETES MELLITUS; LEUKEMIA; or LIVER FAILURE. | 0 | 2.45 | 2 | 0 |
Degenerative Diseases, Central Nervous System [description not available] | 0 | 3.46 | 2 | 0 |
Neurodegenerative Diseases Hereditary and sporadic conditions which are characterized by progressive nervous system dysfunction. These disorders are often associated with atrophy of the affected central or peripheral nervous system structures. | 0 | 3.46 | 2 | 0 |
Di Guglielmo Disease [description not available] | 0 | 3 | 1 | 0 |
Leukemia, Erythroblastic, Acute A myeloproliferative disorder characterized by neoplastic proliferation of erythroblastic and myeloblastic elements with atypical erythroblasts and myeloblasts in the peripheral blood. | 0 | 3 | 1 | 0 |
Leucocythaemia [description not available] | 0 | 5.02 | 5 | 0 |
Leukemia A progressive, malignant disease of the blood-forming organs, characterized by distorted proliferation and development of leukocytes and their precursors in the blood and bone marrow. Leukemias were originally termed acute or chronic based on life expectancy but now are classified according to cellular maturity. Acute leukemias consist of predominately immature cells; chronic leukemias are composed of more mature cells. (From The Merck Manual, 2006) | 0 | 5.02 | 5 | 0 |
Minimal Disease, Residual [description not available] | 0 | 2.49 | 2 | 0 |
Cardiomyopathy, Congestive [description not available] | 0 | 3.35 | 2 | 0 |
Symptom Cluster [description not available] | 0 | 3.13 | 5 | 0 |
Cardiomyopathy, Dilated A form of CARDIAC MUSCLE disease that is characterized by ventricular dilation, VENTRICULAR DYSFUNCTION, and HEART FAILURE. Risk factors include SMOKING; ALCOHOL DRINKING; HYPERTENSION; INFECTION; PREGNANCY; and mutations in the LMNA gene encoding LAMIN TYPE A, a NUCLEAR LAMINA protein. | 0 | 3.35 | 2 | 0 |
Syndrome A characteristic symptom complex. | 0 | 3.13 | 5 | 0 |
Aging The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time. | 0 | 2.1 | 1 | 0 |
Acute Kidney Failure [description not available] | 0 | 2.1 | 1 | 0 |
Acute Kidney Injury Abrupt reduction in kidney function. Acute kidney injury encompasses the entire spectrum of the syndrome including acute kidney failure; ACUTE KIDNEY TUBULAR NECROSIS; and other less severe conditions. | 0 | 2.1 | 1 | 0 |
Experimental Neoplasms [description not available] | 0 | 2.81 | 3 | 0 |
Hormone-Dependent Neoplasms [description not available] | 0 | 2.1 | 1 | 0 |
Osteogenic Sarcoma [description not available] | 0 | 2.1 | 1 | 0 |
Osteosarcoma A sarcoma originating in bone-forming cells, affecting the ends of long bones. It is the most common and most malignant of sarcomas of the bones, and occurs chiefly among 10- to 25-year-old youths. (From Stedman, 25th ed) | 0 | 2.1 | 1 | 0 |
Giant Cell Tumor of Bone A bone tumor composed of cellular spindle-cell stroma containing scattered multinucleated giant cells resembling osteoclasts. The tumors range from benign to frankly malignant lesions. The tumor occurs most frequently in an end of a long tubular bone in young adults. (From Dorland, 27th ed; Stedman, 25th ed) | 0 | 2.1 | 1 | 0 |
Adenocarcinoma Of Kidney [description not available] | 0 | 2.51 | 2 | 0 |
Carcinoma, Renal Cell A heterogeneous group of sporadic or hereditary carcinoma derived from cells of the KIDNEYS. There are several subtypes including the clear cells, the papillary, the chromophobe, the collecting duct, the spindle cells (sarcomatoid), or mixed cell-type carcinoma. | 0 | 2.51 | 2 | 0 |
Cancer, Second Primary [description not available] | 0 | 2.52 | 2 | 0 |
Hematologic Malignancies [description not available] | 0 | 4.4 | 4 | 0 |
Hematologic Neoplasms Neoplasms located in the blood and blood-forming tissue (the bone marrow and lymphatic tissue). The commonest forms are the various types of LEUKEMIA, of LYMPHOMA, and of the progressive, life-threatening forms of the MYELODYSPLASTIC SYNDROMES. | 0 | 4.4 | 4 | 0 |
Chondrodysplasia with Hemangioma [description not available] | 0 | 2.44 | 2 | 0 |
Sarcoma, Epithelioid [description not available] | 0 | 2.53 | 2 | 0 |
Sarcoma A connective tissue neoplasm formed by proliferation of mesodermal cells; it is usually highly malignant. | 0 | 2.53 | 2 | 0 |
Chondroma A benign neoplasm derived from mesodermal cells that form cartilage. It may remain within the substance of a cartilage or bone (true chondroma or enchondroma) or may develop on the surface of a cartilage (ecchondroma or ecchondrosis). (Dorland, 27th ed; Stedman, 25th ed) | 0 | 2.11 | 1 | 0 |
Kidney, Polycystic [description not available] | 0 | 2.11 | 1 | 0 |
Polycystic Kidney Diseases Hereditary diseases that are characterized by the progressive expansion of a large number of tightly packed CYSTS within the KIDNEYS. They include diseases with autosomal dominant and autosomal recessive inheritance. | 0 | 2.11 | 1 | 0 |
Injury, Myocardial Reperfusion [description not available] | 0 | 2.11 | 1 | 0 |
Immunoblastic Large-Cell Lymphoma [description not available] | 0 | 2.11 | 1 | 0 |
Amino Acid Metabolism Disorders, Inborn [description not available] | 0 | 6.63 | 28 | 0 |
T-Cell Lymphoma [description not available] | 0 | 2.13 | 1 | 0 |
Lymphoma, T-Cell A group of heterogeneous lymphoid tumors representing malignant transformations of T-lymphocytes. | 0 | 2.13 | 1 | 0 |
Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms. | 0 | 2.15 | 1 | 0 |
CACH Syndrome [description not available] | 0 | 2.15 | 1 | 0 |
Clinically Isolated CNS Demyelinating Syndrome [description not available] | 0 | 2.15 | 1 | 0 |
Astrocytosis [description not available] | 0 | 2.15 | 1 | 0 |
Atrophy Decrease in the size of a cell, tissue, organ, or multiple organs, associated with a variety of pathological conditions such as abnormal cellular changes, ischemia, malnutrition, or hormonal changes. | 0 | 2.95 | 4 | 0 |
Demyelinating Diseases Diseases characterized by loss or dysfunction of myelin in the central or peripheral nervous system. | 0 | 2.15 | 1 | 0 |
Inborn Errors of Metabolism [description not available] | 0 | 6.06 | 28 | 0 |
Metabolism, Inborn Errors Errors in metabolic processes resulting from inborn genetic mutations that are inherited or acquired in utero. | 0 | 6.06 | 28 | 0 |
Child Development Deviations [description not available] | 0 | 3.62 | 3 | 0 |
Death, Sudden The abrupt cessation of all vital bodily functions, manifested by the permanent loss of total cerebral, respiratory, and cardiovascular functions. | 0 | 2.96 | 1 | 0 |
Cot Death [description not available] | 0 | 2.96 | 1 | 0 |
Developmental Disabilities Disorders in which there is a delay in development based on that expected for a given age level or stage of development. These impairments or disabilities originate before age 18, may be expected to continue indefinitely, and constitute a substantial impairment. Biological and nonbiological factors are involved in these disorders. (From American Psychiatric Glossary, 6th ed) | 0 | 3.62 | 3 | 0 |
Nervous System Disorders [description not available] | 0 | 4.16 | 6 | 0 |
Nervous System Diseases Diseases of the central and peripheral nervous system. This includes disorders of the brain, spinal cord, cranial nerves, peripheral nerves, nerve roots, autonomic nervous system, neuromuscular junction, and muscle. | 0 | 4.16 | 6 | 0 |
Orphan Diseases Rare diseases that have not been well studied. | 0 | 2.44 | 2 | 0 |
Ataxia Impairment of the ability to perform smoothly coordinated voluntary movements. This condition may affect the limbs, trunk, eyes, pharynx, larynx, and other structures. Ataxia may result from impaired sensory or motor function. Sensory ataxia may result from posterior column injury or PERIPHERAL NERVE DISEASES. Motor ataxia may be associated with CEREBELLAR DISEASES; CEREBRAL CORTEX diseases; THALAMIC DISEASES; BASAL GANGLIA DISEASES; injury to the RED NUCLEUS; and other conditions. | 0 | 2.42 | 2 | 0 |
Dyskinesia Syndromes [description not available] | 0 | 2.05 | 1 | 0 |
Movement Disorders Syndromes which feature DYSKINESIAS as a cardinal manifestation of the disease process. Included in this category are degenerative, hereditary, post-infectious, medication-induced, post-inflammatory, and post-traumatic conditions. | 0 | 2.05 | 1 | 0 |
Deficiency, Mental [description not available] | 0 | 3.62 | 9 | 0 |
Decreased Muscle Tone [description not available] | 0 | 3.1 | 5 | 0 |
Developmental Psychomotor Disorders [description not available] | 0 | 4.63 | 4 | 0 |
Cryptogenic Infantile Spasms [description not available] | 0 | 2.41 | 2 | 0 |
Intellectual Disability Subnormal intellectual functioning which originates during the developmental period. This has multiple potential etiologies, including genetic defects and perinatal insults. Intelligence quotient (IQ) scores are commonly used to determine whether an individual has an intellectual disability. IQ scores between 70 and 79 are in the borderline range. Scores below 67 are in the disabled range. (from Joynt, Clinical Neurology, 1992, Ch55, p28) | 0 | 3.62 | 9 | 0 |
Spasms, Infantile An epileptic syndrome characterized by the triad of infantile spasms, hypsarrhythmia, and arrest of psychomotor development at seizure onset. The majority present between 3-12 months of age, with spasms consisting of combinations of brief flexor or extensor movements of the head, trunk, and limbs. The condition is divided into two forms: cryptogenic (idiopathic) and symptomatic (secondary to a known disease process such as intrauterine infections; nervous system abnormalities; BRAIN DISEASES, METABOLIC, INBORN; prematurity; perinatal asphyxia; TUBEROUS SCLEROSIS; etc.). (From Menkes, Textbook of Child Neurology, 5th ed, pp744-8) | 0 | 2.41 | 2 | 0 |
Electron Transfer Flavoprotein Alpha Subunit Deficiency [description not available] | 0 | 2.75 | 3 | 0 |
Carcinoma, Papillary A malignant neoplasm characterized by the formation of numerous, irregular, finger-like projections of fibrous stroma that is covered with a surface layer of neoplastic epithelial cells. (Stedman, 25th ed) | 0 | 2.06 | 1 | 0 |
Cancer of the Thyroid [description not available] | 0 | 2.06 | 1 | 0 |
Thyroid Neoplasms Tumors or cancer of the THYROID GLAND. | 0 | 2.06 | 1 | 0 |
Thyroid Nodule A small circumscribed mass in the THYROID GLAND that can be of neoplastic growth or non-neoplastic abnormality. It lacks a well-defined capsule or glandular architecture. Thyroid nodules are often benign but can be malignant. The growth of nodules can lead to a multinodular goiter (GOITER, NODULAR). | 0 | 2.06 | 1 | 0 |
Bilateral Wilms Tumor [description not available] | 0 | 2.06 | 1 | 0 |
Wilms Tumor A malignant kidney tumor, caused by the uncontrolled multiplication of renal stem (blastemal), stromal (STROMAL CELLS), and epithelial (EPITHELIAL CELLS) elements. However, not all three are present in every case. Several genes or chromosomal areas have been associated with Wilms tumor which is usually found in childhood as a firm lump in a child's side or ABDOMEN. | 0 | 2.06 | 1 | 0 |
Chondromatosis Multiple formation of chondromas. (Dorland, 27th ed) | 0 | 2.06 | 1 | 0 |
Abnormal Movements [description not available] | 0 | 2.07 | 1 | 0 |
Adiadochokinesis [description not available] | 0 | 4.1 | 3 | 0 |
Cerebellar Ataxia Incoordination of voluntary movements that occur as a manifestation of CEREBELLAR DISEASES. Characteristic features include a tendency for limb movements to overshoot or undershoot a target (dysmetria), a tremor that occurs during attempted movements (intention TREMOR), impaired force and rhythm of diadochokinesis (rapidly alternating movements), and GAIT ATAXIA. (From Adams et al., Principles of Neurology, 6th ed, p90) | 0 | 4.1 | 3 | 0 |
Oxaluria, Primary [description not available] | 0 | 2.07 | 1 | 0 |
Hyperoxaluria, Primary A genetic disorder characterized by excretion of large amounts of OXALATES in urine; NEPHROLITHIASIS; NEPHROCALCINOSIS; early onset of RENAL FAILURE; and often a generalized deposit of CALCIUM OXALATE. There are subtypes classified by the enzyme defects in glyoxylate metabolism. | 0 | 2.07 | 1 | 0 |
Granulocytic Leukemia [description not available] | 0 | 2.07 | 1 | 0 |
Acute Disease Disease having a short and relatively severe course. | 0 | 2.07 | 1 | 0 |
Leukemia, Myeloid Form of leukemia characterized by an uncontrolled proliferation of the myeloid lineage and their precursors (MYELOID PROGENITOR CELLS) in the bone marrow and other sites. | 0 | 2.07 | 1 | 0 |
Hematoma, Subdural Accumulation of blood in the SUBDURAL SPACE between the DURA MATER and the arachnoidal layer of the MENINGES. This condition primarily occurs over the surface of a CEREBRAL HEMISPHERE, but may develop in the spinal canal (HEMATOMA, SUBDURAL, SPINAL). Subdural hematoma can be classified as the acute or the chronic form, with immediate or delayed symptom onset, respectively. Symptoms may include loss of consciousness, severe HEADACHE, and deteriorating mental status. | 0 | 2.01 | 1 | 0 |
Disease A definite pathologic process with a characteristic set of signs and symptoms. It may affect the whole body or any of its parts, and its etiology, pathology, and prognosis may be known or unknown. | 0 | 2.93 | 1 | 0 |
Adult Neuronal Ceroid Lipofuscinosis [description not available] | 0 | 2.93 | 1 | 0 |
Neuronal Ceroid-Lipofuscinoses A group of severe neurodegenerative diseases characterized by intracellular accumulation of autofluorescent wax-like lipid materials (CEROID; LIPOFUSCIN) in neurons. There are several subtypes based on mutations of the various genes, time of disease onset, and severity of the neurological defects such as progressive DEMENTIA; SEIZURES; and visual failure. | 0 | 2.93 | 1 | 0 |
Diseases, Metabolic [description not available] | 0 | 2.43 | 2 | 0 |
Metabolic Diseases Generic term for diseases caused by an abnormal metabolic process. It can be congenital due to inherited enzyme abnormality (METABOLISM, INBORN ERRORS) or acquired due to disease of an endocrine organ or failure of a metabolically important organ such as the liver. (Stedman, 26th ed) | 0 | 2.43 | 2 | 0 |
Brain Hemorrhage [description not available] | 0 | 2.01 | 1 | 0 |
Absence of Corpus Callosum [description not available] | 0 | 2.01 | 1 | 0 |
Abnormalities, Multiple Congenital abnormalities that affect more than one organ or body structure. | 0 | 2.01 | 1 | 0 |
Convulsions, Grand Mal [description not available] | 0 | 2.01 | 1 | 0 |
Epilepsy, Tonic-Clonic A generalized seizure disorder characterized by recurrent major motor seizures. The initial brief tonic phase is marked by trunk flexion followed by diffuse extension of the trunk and extremities. The clonic phase features rhythmic flexor contractions of the trunk and limbs, pupillary dilation, elevations of blood pressure and pulse, urinary incontinence, and tongue biting. This is followed by a profound state of depressed consciousness (post-ictal state) which gradually improves over minutes to hours. The disorder may be cryptogenic, familial, or symptomatic (caused by an identified disease process). (From Adams et al., Principles of Neurology, 6th ed, p329) | 0 | 2.01 | 1 | 0 |
Intracranial Hemorrhages Bleeding within the SKULL, including hemorrhages in the brain and the three membranes of MENINGES. The escape of blood often leads to the formation of HEMATOMA in the cranial epidural, subdural, and subarachnoid spaces. | 0 | 2.01 | 1 | 0 |
Craniofacial Abnormalities Congenital structural deformities, malformations, or other abnormalities of the cranium and facial bones. | 0 | 3.33 | 2 | 0 |
Brain Disorders [description not available] | 0 | 2.91 | 4 | 0 |
Canine Diseases [description not available] | 0 | 3.1 | 5 | 0 |
Brain Diseases Pathologic conditions affecting the BRAIN, which is composed of the intracranial components of the CENTRAL NERVOUS SYSTEM. This includes (but is not limited to) the CEREBRAL CORTEX; intracranial white matter; BASAL GANGLIA; THALAMUS; HYPOTHALAMUS; BRAIN STEM; and CEREBELLUM. | 0 | 2.91 | 4 | 0 |
Cerebral Primitive Neuroectodermal Tumor [description not available] | 0 | 2.93 | 1 | 0 |
Acquired Metabolic Diseases, Brain [description not available] | 0 | 4 | 5 | 0 |
Neuroectodermal Tumors, Primitive A group of malignant tumors of the nervous system that feature primitive cells with elements of neuronal and/or glial differentiation. Use of this term is limited by some authors to central nervous system tumors and others include neoplasms of similar origin which arise extracranially (i.e., NEUROECTODERMAL TUMORS, PRIMITIVE, PERIPHERAL). This term is also occasionally used as a synonym for MEDULLOBLASTOMA. In general, these tumors arise in the first decade of life and tend to be highly malignant. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2059) | 0 | 2.93 | 1 | 0 |
Autosomal Dominant Juvenile Parkinson Disease [description not available] | 0 | 2.02 | 1 | 0 |
Dystonia An attitude or posture due to the co-contraction of agonists and antagonist muscles in one region of the body. It most often affects the large axial muscles of the trunk and limb girdles. Conditions which feature persistent or recurrent episodes of dystonia as a primary manifestation of disease are referred to as DYSTONIC DISORDERS. (Adams et al., Principles of Neurology, 6th ed, p77) | 0 | 2.02 | 1 | 0 |
Action Tremor [description not available] | 0 | 2.41 | 2 | 0 |
Tremor Cyclical movement of a body part that can represent either a physiologic process or a manifestation of disease. Intention or action tremor, a common manifestation of CEREBELLAR DISEASES, is aggravated by movement. In contrast, resting tremor is maximal when there is no attempt at voluntary movement, and occurs as a relatively frequent manifestation of PARKINSON DISEASE. | 0 | 2.41 | 2 | 0 |
Parkinsonian Disorders A group of disorders which feature impaired motor control characterized by bradykinesia, MUSCLE RIGIDITY; TREMOR; and postural instability. Parkinsonian diseases are generally divided into primary parkinsonism (see PARKINSON DISEASE), secondary parkinsonism (see PARKINSON DISEASE, SECONDARY) and inherited forms. These conditions are associated with dysfunction of dopaminergic or closely related motor integration neuronal pathways in the BASAL GANGLIA. | 0 | 2.02 | 1 | 0 |
Central Nervous System Disease [description not available] | 0 | 3.62 | 3 | 0 |
Central Nervous System Diseases Diseases of any component of the brain (including the cerebral hemispheres, diencephalon, brain stem, and cerebellum) or the spinal cord. | 0 | 3.62 | 3 | 0 |
Chondrodystrophic Myotonia [description not available] | 0 | 2.02 | 1 | 0 |
Mesenteric Vascular Occlusion Obstruction of the flow in the SPLANCHNIC CIRCULATION by ATHEROSCLEROSIS; EMBOLISM; THROMBOSIS; STENOSIS; TRAUMA; and compression or intrinsic pressure from adjacent tumors. Rare causes are drugs, intestinal parasites, and vascular immunoinflammatory diseases such as PERIARTERITIS NODOSA and THROMBOANGIITIS OBLITERANS. (From Juergens et al., Peripheral Vascular Diseases, 5th ed, pp295-6) | 0 | 2.02 | 1 | 0 |
Cyst [description not available] | 0 | 2.41 | 2 | 0 |
Acute Onset Vascular Dementia [description not available] | 0 | 2.44 | 2 | 0 |
Dementia, Vascular An imprecise term referring to dementia associated with CEREBROVASCULAR DISORDERS, including CEREBRAL INFARCTION (single or multiple), and conditions associated with chronic BRAIN ISCHEMIA. Diffuse, cortical, and subcortical subtypes have been described. (From Gerontol Geriatr 1998 Feb;31(1):36-44) | 0 | 2.44 | 2 | 0 |
Complications, Pregnancy [description not available] | 0 | 2.03 | 1 | 0 |
Hemiplegia, Crossed [description not available] | 0 | 2.03 | 1 | 0 |
Hemiplegia Severe or complete loss of motor function on one side of the body. This condition is usually caused by BRAIN DISEASES that are localized to the cerebral hemisphere opposite to the side of weakness. Less frequently, BRAIN STEM lesions; cervical SPINAL CORD DISEASES; PERIPHERAL NERVOUS SYSTEM DISEASES; and other conditions may manifest as hemiplegia. The term hemiparesis (see PARESIS) refers to mild to moderate weakness involving one side of the body. | 0 | 2.03 | 1 | 0 |
Bleeding [description not available] | 0 | 2.03 | 1 | 0 |
Hemorrhage, Retinal [description not available] | 0 | 2.03 | 1 | 0 |
Dermatoses [description not available] | 0 | 2.03 | 1 | 0 |
Hemorrhage Bleeding or escape of blood from a vessel. | 0 | 2.03 | 1 | 0 |
Skin Diseases Diseases involving the DERMIS or EPIDERMIS. | 0 | 2.03 | 1 | 0 |
Osteoma A benign tumor composed of bone tissue or a hard tumor of bonelike structure developing on a bone (homoplastic osteoma) or on other structures (heteroplastic osteoma). (From Dorland, 27th ed) | 0 | 2.03 | 1 | 0 |
Autism [description not available] | 0 | 2.04 | 1 | 0 |
Autistic Disorder A disorder beginning in childhood. It is marked by the presence of markedly abnormal or impaired development in social interaction and communication and a markedly restricted repertoire of activity and interest. Manifestations of the disorder vary greatly depending on the developmental level and chronological age of the individual. (DSM-V) | 0 | 2.04 | 1 | 0 |
ACY2 Deficiency [description not available] | 0 | 2.04 | 1 | 0 |
4 Hydroxyphenylpyruvate Dioxygenase Deficiency Disease [description not available] | 0 | 2.04 | 1 | 0 |
BH4 Deficiency [description not available] | 0 | 2.04 | 1 | 0 |
Phenylketonurias A group of autosomal recessive disorders marked by a deficiency of the hepatic enzyme PHENYLALANINE HYDROXYLASE or less frequently by reduced activity of DIHYDROPTERIDINE REDUCTASE (i.e., atypical phenylketonuria). Classical phenylketonuria is caused by a severe deficiency of phenylalanine hydroxylase and presents in infancy with developmental delay; SEIZURES; skin HYPOPIGMENTATION; ECZEMA; and demyelination in the central nervous system. (From Adams et al., Principles of Neurology, 6th ed, p952). | 0 | 2.04 | 1 | 0 |
Canavan Disease A rare neurodegenerative condition of infancy or childhood characterized by white matter vacuolization and demeylination that gives rise to a spongy appearance. Aspartoacylase deficiency leads to an accumulation of N-acetylaspartate in astrocytes. Inheritance may be autosomal recessive or the illness may occur sporadically. This illness occurs more frequently in individuals of Ashkenazic Jewish descent. The neonatal form features the onset of hypotonia and lethargy at birth, rapidly progressing to coma and death. The infantile form features developmental delay, DYSKINESIAS, hypotonia, spasticity, blindness, and megalencephaly. The juvenile form is characterized by ATAXIA; OPTIC ATROPHY; and DEMENTIA. (From Adams et al., Principles of Neurology, 6th ed, p944; Am J Med Genet 1988 Feb;29(2):463-71) | 0 | 2.04 | 1 | 0 |
Tyrosinemias A group of disorders which have in common elevations of tyrosine in the blood and urine secondary to an enzyme deficiency. Type I tyrosinemia features episodic weakness, self-mutilation, hepatic necrosis, renal tubular injury, and seizures and is caused by a deficiency of the enzyme fumarylacetoacetase. Type II tyrosinemia features INTELLECTUAL DISABILITY, painful corneal ulcers, and keratoses of the palms and plantar surfaces and is caused by a deficiency of the enzyme TYROSINE TRANSAMINASE. Type III tyrosinemia features INTELLECTUAL DISABILITY and is caused by a deficiency of the enzyme 4-HYDROXYPHENYLPYRUVATE DIOXYGENASE. (Menkes, Textbook of Child Neurology, 5th ed, pp42-3) | 0 | 2.04 | 1 | 0 |
Basal Ganglia Diseases Diseases of the BASAL GANGLIA including the PUTAMEN; GLOBUS PALLIDUS; claustrum; AMYGDALA; and CAUDATE NUCLEUS. DYSKINESIAS (most notably involuntary movements and alterations of the rate of movement) represent the primary clinical manifestations of these disorders. Common etiologies include CEREBROVASCULAR DISORDERS; NEURODEGENERATIVE DISEASES; and CRANIOCEREBRAL TRAUMA. | 0 | 1.98 | 1 | 0 |
Amaurosis [description not available] | 0 | 2.39 | 2 | 0 |
Abnormalities, Autosome [description not available] | 0 | 2.4 | 2 | 0 |
Benign Infantile Myoclonic Epilepsy [description not available] | 0 | 1.98 | 1 | 0 |
Autosomal Chromosome Disorders [description not available] | 0 | 2.4 | 2 | 0 |
Blindness The inability to see or the loss or absence of perception of visual stimuli. This condition may be the result of EYE DISEASES; OPTIC NERVE DISEASES; OPTIC CHIASM diseases; or BRAIN DISEASES affecting the VISUAL PATHWAYS or OCCIPITAL LOBE. | 0 | 2.39 | 2 | 0 |
Epilepsies, Myoclonic A clinically diverse group of epilepsy syndromes characterized either by myoclonic seizures or by myoclonus in association with other seizure types. Myoclonic epilepsy syndromes are divided into three subtypes based on etiology: familial, cryptogenic, and symptomatic. | 0 | 1.98 | 1 | 0 |
Aminoaciduria, Renal [description not available] | 0 | 4.98 | 3 | 1 |
Embryopathies [description not available] | 0 | 1.98 | 1 | 0 |
BCKD Deficiency [description not available] | 0 | 1.99 | 1 | 0 |
Maple Syrup Urine Disease An autosomal recessive inherited disorder with multiple forms of phenotypic expression, caused by a defect in the oxidative decarboxylation of branched-chain amino acids (AMINO ACIDS, BRANCHED-CHAIN). These metabolites accumulate in body fluids and render a maple syrup odor. The disease is divided into classic, intermediate, intermittent, and thiamine responsive subtypes. The classic form presents in the first week of life with ketoacidosis, hypoglycemia, emesis, neonatal seizures, and hypertonia. The intermediate and intermittent forms present in childhood or later with acute episodes of ataxia and vomiting. (From Adams et al., Principles of Neurology, 6th ed, p936) | 0 | 1.99 | 1 | 0 |
Chorea Disorders [description not available] | 0 | 2 | 1 | 0 |
Vision, Diminished [description not available] | 0 | 2 | 1 | 0 |
Chorea Involuntary, forcible, rapid, jerky movements that may be subtle or become confluent, markedly altering normal patterns of movement. Hypotonia and pendular reflexes are often associated. Conditions which feature recurrent or persistent episodes of chorea as a primary manifestation of disease are referred to as CHOREATIC DISORDERS. Chorea is also a frequent manifestation of BASAL GANGLIA DISEASES. | 0 | 2 | 1 | 0 |
Bone Diseases, Developmental Diseases resulting in abnormal GROWTH or abnormal MORPHOGENESIS of BONES. | 0 | 2 | 1 | 0 |
Spinal Diseases Diseases involving the SPINE. | 0 | 2 | 1 | 0 |
Epiphyses, Slipped A complete or partial separation of the EPIPHYSES from the DIAPHYSES. | 0 | 2 | 1 | 0 |
Scoliosis An appreciable lateral deviation in the normally straight vertical line of the spine. (Dorland, 27th ed) | 0 | 2 | 1 | 0 |
Arteriovenous Malformations, Cerebral [description not available] | 0 | 2 | 1 | 0 |
Amyotonia Congenita [description not available] | 0 | 2 | 1 | 0 |
Intracranial Arteriovenous Malformations Congenital vascular anomalies in the brain characterized by direct communication between an artery and a vein without passing through the CAPILLARIES. The locations and size of the shunts determine the symptoms including HEADACHES; SEIZURES; STROKE; INTRACRANIAL HEMORRHAGES; mass effect; and vascular steal effect. | 0 | 2 | 1 | 0 |
Neuromuscular Diseases A general term encompassing lower MOTOR NEURON DISEASE; PERIPHERAL NERVOUS SYSTEM DISEASES; and certain MUSCULAR DISEASES. Manifestations include MUSCLE WEAKNESS; FASCICULATION; muscle ATROPHY; SPASM; MYOKYMIA; MUSCLE HYPERTONIA, myalgias, and MUSCLE HYPOTONIA. | 0 | 2 | 1 | 0 |
Spinal Stenosis Narrowing of the spinal canal. | 0 | 2 | 1 | 0 |
Abdominal Migraine [description not available] | 0 | 2 | 1 | 0 |
Migraine Disorders A class of disabling primary headache disorders, characterized by recurrent unilateral pulsatile headaches. The two major subtypes are common migraine (without aura) and classic migraine (with aura or neurological symptoms). (International Classification of Headache Disorders, 2nd ed. Cephalalgia 2004: suppl 1) | 0 | 2 | 1 | 0 |
Shock, Cardiogenic Shock resulting from diminution of cardiac output in heart disease. | 0 | 2.01 | 1 | 0 |
Hyperoxaluria Excretion of an excessive amount of OXALATES in the urine. | 0 | 1.97 | 1 | 0 |