Page last updated: 2024-12-05

mannoheptulose

Description Research Excerpts Clinical Trials Roles Classes Pathways Study Profile Bioassays Related Drugs Related Conditions Protein Interactions Research Growth Market Indicators

Description

Mannoheptulose, also known as D-manno-heptulose, is a rare sugar found in some plants. It is a ketoheptose, meaning it has a seven-carbon backbone and a ketone functional group. It is a potent inhibitor of various enzymes involved in carbohydrate metabolism, including aldolase, transketolase, and hexokinase. These inhibitory properties have led to its investigation as a potential therapeutic agent for conditions such as diabetes and obesity. Mannoheptulose is also being studied for its potential to enhance insulin sensitivity and improve glucose tolerance. Its synthesis can be achieved through various methods, including the oxidation of D-mannitol or the isomerization of D-glucoheptulose. Further research is needed to fully understand its biological roles and therapeutic potential.'

Mannoheptulose: A 7-carbon keto sugar having the mannose configuration. [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

D-keto-manno-heptulose : The open chain form of D-manno-heptulose. [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]

D-manno-heptulose : A manno-heptulose with a D-configuration. It has been found in avocados. [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]

Cross-References

ID SourceID
PubMed CID12600
CHEBI ID78363
SCHEMBL ID119659
MeSH IDM0012999

Synonyms (24)

Synonym
d-manno-heptulose
mannoheptulose, d-
(+)-mannoheptulose
mannoheptulose
M-0980
(3s,4s,5r,6r)-1,3,4,5,6,7-hexahydroxyheptan-2-one
ai3-61577
nsc 226836
einecs 222-795-5
unii-w19yh62373
w19yh62373 ,
mannoketoheptose
manno-2-heptulose
d-manno-ketoheptose
d-manno-heptulose [mi]
mannoheptulose, (+)-
SCHEMBL119659
CHEBI:78363
d-keto-manno-heptulose
AKOS030254592
Q897649
CS-0100954
HY-U00462
DTXSID60879012

Research Excerpts

Overview

D-mannoheptulose is a seven-carbon sugar. It is an inhibitor of D-glucose phosphorylation by hexokinase isoenzymes.

ExcerptReferenceRelevance
"Mannoheptulose is a seven-carbon sugar. "( Combination of biotransformation and chromatography for the isolation and purification of mannoheptulose.
Kappler-Tanudyaya, N; Lenzen, S; Meyer, L; Schmitt, H; Tippkötter, N; Ulber, R, 2007
)
2
"D-mannoheptulose is a specific inhibitor of D-glucose phosphorylation by hexokinase isoenzymes. "( D-mannoheptulose phosphorylation by hexokinase isoenzymes.
Courtois, P; Malaisse, WJ; Sener, A, 2001
)
1.75

Actions

Mannoheptulose did not inhibit insulin secretion from control obese rats. However at concentrations of 1.0 mmol, it did inhibit the secretion of insulin from fa/fa islets. Inhibitors of later events in the stimulus-secretion coupling pathway were normally inhibited by iodoacetate and diazoxide.

ExcerptReferenceRelevance
"Mannoheptulose did not inhibit insulin secretion from fa/fa islets, although inhibitors of later events in the stimulus-secretion coupling pathway were normally inhibited by iodoacetate and diazoxide."( Evidence for defective glucose sensing by islets of fa/fa obese Zucker rats.
Chan, CB; MacPhail, RM; Mitton, K, 1993
)
1.01
"Mannoheptulose did not inhibit insulin secretion from control obese rats; however at concentrations of 1.0 mmol."( Effect of adrenalectomy on the development of a pancreatic islet lesion in fa/fa rats.
Chan, CB; Kibenge, MT, 1996
)
1.02

Treatment

Mannoheptulose treatment raises glucagon and lowers insulin. It had no effect on the kinetics of the mitochondrial proton leak or phosphorylating subsystems.

ExcerptReferenceRelevance
"in mannoheptulose-treated versus control islets from fa/fa rats."( Glucokinase activity in isolated islets from obese fa/fa Zucker rats.
Chan, CB, 1993
)
0.8
"2. Mannoheptulose treatment also lowered the rate of whole-body oxidation of the administered tracer."( The role of insulin in the intestinal absorption of glucose in the rat.
Arbós, J; Argilés, JM; García, C; López-Soriano, FJ; Zegrí, A, 1992
)
0.8
"Mannoheptulose treatment raises glucagon and lowers insulin; it had no effect on the kinetics of the mitochondrial proton leak or phosphorylating subsystems, but the respiratory chain from succinate to oxygen was stimulated."( Stimulation of the electron transport chain in mitochondria isolated from rats treated with mannoheptulose or glucagon.
Brand, MD; D'Alessandri, L; Hafner, RP; Reis, HM, 1990
)
1.22
"Mannoheptulose treatment may therefore be preferable as a model for further study of hormone effects on mitochondrial function."( Increased adenine nucleotides in liver mitochondria after mannoheptulose injection in vivo.
Aprille, JR; Tullson, PC, 1986
)
1.24

Toxicity

ExcerptReferenceRelevance
" Mannoheptulose not only removes the protection provided by exogenous glucose but sensitizes the beta cell to the toxic effects of alloxan in the fasting state, probably by inhibiting the protection provided by endogenous glucose."( Studies of alloxan toxicity on the beta cell.
Arcangeli, MA; Cahill, GF; Rossini, AA, 1975
)
0.98

Dosage Studied

ExcerptRelevanceReference
" However, the partial dissociation of the dose-response curves for the two phenomena lends support to the contention that the phosphate flush reflects an earlier event in the sequence of stimulus-secretion coupling."( Insulin release and phosphate ion efflux from rat pancreatic islets induced by L-leucine and its nonmetabolizable analogue, 2-aminobicyclo[2.2.1]heptane-2-carboxylic acid.
Dawson, RM; Freinkel, N; Younsi, CE, 1976
)
0.26
" Islets equilibrated with N2-CO2 (95:5) did not exhibit a sigmoidal dose-response curve for 3h2o production, the process being inhibited by anoxia at glucose concentrations above 5mM."( Influence of anoxia on glucose metabolism in pancreatic islets: lack of correlation between fructose-1,6-diphosphate and apparent glycolytic flux.
Hellman, B; Idahl, LA; Sehlin, J; Täljedal, IB, 1975
)
0.25
" Islets from both genetic models showed a left-shifted glucose dose-response curve for insulin release (concentrations for half-maximal release, 5 to 6 mmol/L v 12 to 13 mmol/L in LA/N lean littermates and 3 mmol/L v 10 mmol/L in lean SHR/N)."( Genetically obese rats with (SHR/N-cp) and without diabetes (LA/N-cp) share abnormal islet responses to glucose.
Recant, L; Timmers, KI; Voyles, NR, 1992
)
0.28
"Transgenic or tumoral pancreatic islet beta cells with enhanced expression of low K(m) hexokinases (HK) exhibit a leftward shift of the normal dose-response curve for glucose-induced insulin release."( Cellular origin of hexokinase in pancreatic islets.
Heimberg, H; Moens, K; Pipeleers, D; Schuit, F, 1999
)
0.3
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Drug Classes (1)

ClassDescription
D-manno-heptuloseA manno-heptulose with a D-configuration. It has been found in avocados.
[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]

Research

Studies (225)

TimeframeStudies, This Drug (%)All Drugs %
pre-1990107 (47.56)18.7374
1990's67 (29.78)18.2507
2000's35 (15.56)29.6817
2010's13 (5.78)24.3611
2020's3 (1.33)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 36.68

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 strong demand-to-supply ratio for research on this compound.

MetricThis Compound (vs All)
Research Demand Index36.68 (24.57)
Research Supply Index5.44 (2.92)
Research Growth Index4.23 (4.65)
Search Engine Demand Index52.19 (26.88)
Search Engine Supply Index2.00 (0.95)

This Compound (36.68)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials2 (0.88%)5.53%
Reviews3 (1.32%)6.00%
Case Studies0 (0.00%)4.05%
Observational0 (0.00%)0.25%
Other223 (97.81%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]