Page last updated: 2024-11-05

samarium

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

Description

Samarium is a lanthanide metal, a silvery-white element with the symbol Sm and atomic number 62. It is found in nature in small quantities in monazite and bastnasite ores. Samarium is used in various applications, including:

* **Magnetic materials:** Samarium-cobalt (SmCo) magnets are powerful and permanent magnets known for their high coercivity and resistance to demagnetization. They find applications in various fields, including aerospace, medical equipment, and electric motors.
* **Optical materials:** Samarium oxide (Sm2O3) is used in lasers, phosphors, and optical filters due to its unique luminescent properties.
* **Nuclear applications:** Samarium-151 (151Sm) is used in neutron capture applications, and samarium-149 (149Sm) is used as a neutron absorber in nuclear reactors.
* **Medical applications:** Samarium-153 (153Sm) is used in radiopharmaceuticals for treating bone cancer and other bone disorders.
* **Catalysis:** Samarium compounds can be used as catalysts in various chemical reactions.

Samarium is primarily synthesized by extracting it from monazite or bastnasite ores through a complex process that involves several steps, including:
1. **Mining and crushing:** The ore is mined and crushed to obtain smaller particles.
2. **Leaching:** The crushed ore is leached with sulfuric acid to extract the lanthanides.
3. **Separation:** The lanthanides are separated from each other using techniques such as solvent extraction and ion exchange.
4. **Reduction:** The separated samarium oxide is reduced to metallic samarium using a reducing agent such as calcium.

The study of samarium is crucial for its various applications and advancements in fields like materials science, optics, nuclear technology, and medicine. Samarium's unique properties make it a valuable element for developing new materials and technologies.'

sphingomyelin 16:0 : A sphingomyelin in which the total number of carbons contained in the sphingoid base and fatty acyl groups is 16 with zero double bonds. [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]

sphingomyelin d18:1/16:0 : A sphingomyelin d18:1 in which the fatty acyl group contains 16 carbons and is fully saturated. [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]

N-hexadecanoylsphingosine-1-phosphocholine : A sphingomyelin 34:1 in which the N-acyl group and sphingoid base are specified as hexadecanoyl and sphingosine respectively. [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]

Samarium: An element of the rare earth family of metals. It has the atomic symbol Sm, atomic number 62, and atomic weight 150.36. The oxide is used in the control rods of some nuclear reactors. [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

Cross-References

ID SourceID
PubMed CID9939941
CHEMBL ID4526394
CHEBI ID78646
MeSH IDM0019408
PubMed CID23951
CHEBI ID33374
MeSH IDM0019408

Synonyms (126)

Synonym
sm(d18:1/16:0)
n-(hexadecanoyl)-sphing-4-enine-1-phosphocholine
c16 sphingomyelin
LMSP03010003 ,
sphingomyelin d18:1/16:0
n-palmitoyl-d-erythro-sphingosylphosphorylcholine
6254-89-3
hexadecanoyl sphingomyelin
palmitoyl sphingomyelin
804F5DLI9L ,
3,5-dioxa-8-aza-4-phosphatetracosan-1-aminium, 4-hydroxy-7-(1-hydroxy-2-hexadecenyl)-n,n,n-trimethyl-9-oxo-, inner salt, 4-oxide, (r-(r*,s*-(e)))-
sphingomyelins n-palmitoylsphingomyelin [mi]
choline, dihydrogen phosphate, inner salt, 1-ester with n-(2-hydroxy-1-(hydroxymethyl)-3-heptadecenyl)hexadecanamide, d-erythro-trans-
n-palmitoylsphingosylphosphorylcholine
3,5-dioxa-8-aza-4-phosphatetracosan-1-aminium, 4-hydroxy-7-((1r,2e)-1-hydroxy-2-hexadecenyl)-n,n,n-trimethyl-9-oxo-, inner salt, 4-oxide, (7s)-
sphingomyelin 16:0
n-palmitoylsphingomyelin
unii-804f5dli9l
n-hexadecanoylsphingomyelin
(2s,3r,4e)-2-(hexadecanoylamino)-3-hydroxyoctadec-4-en-1-yl 2-(trimethylazaniumyl)ethyl phosphate
palmitoyl sphingomyelin (d18:1/16:0)
(2s,3r,4e)-3-hydroxy-2-(palmitoylamino)octadec-4-en-1-yl 2-(trimethylazaniumyl)ethyl phosphate
sm(18:1/16:0)
(2s,3r,4e)-2-(palmitoylamino)-3-hydroxyoctadec-4-en-1-yl 2-(trimethylazaniumyl)ethyl phosphate
sphingomyelin(d18:1/16:0)
n-hexadecanoylsphingosine-1-phosphocholine
n-palmitoylsphingosine-1-phosphocholine
c16-sphingomyelin
sphingomyelin (d18:1/16:0)
n-palmitoylsphing-4-enine-1-phosphocholine
CHEBI:78646
n-hexadecanoylsphing-4-enine-1-phosphocholine
palmitoylsphingomyelin
n-palmitoyl-d-sphingomyelin, >=96.0% (tlc)
n-palmitoyl-d-sphingomyelin
sm d34:1
egg sm, sphingomyelin (egg, chicken), powder
16:0 sm (d18:1/16:0), n-palmitoyl-d-erythro-sphingosylphosphorylcholine, powder
3,5-dioxa-8-aza-4-phosphatetracosan-1-aminium, 4-hydroxy-7-[(1r,2e)-1-hydroxy-2-hexadecenyl]-n,n,n-trimethyl-9-oxo-, inner salt, 4-oxide, (7s)-rel-
641628-11-7
Q27105084
(2-{[2-hexadecanamido-3-hydroxyoctadec-4-en-1-yl phosphono]oxy}ethyl)trimethylazanium
[(e,2s,3r)-2-(hexadecanoylamino)-3-hydroxyoctadec-4-enyl] 2-(trimethylazaniumyl)ethyl phosphate
CHEMBL4526394
DTXSID901312972
[(e,2s,3r)-2-(hexadecanoylamino)-3-oxidanyl-octadec-4-enyl] 2-(trimethylazaniumyl)ethyl phosphate
DTXSID401334206
(2s,3r,4e)-2-(hexadecanoylamino)-3-hydroxy-4-octadecen-1-yl 2-(trimethylazaniumyl)ethyl phosphate
sphingomyelin (chicken egg)
3,5-dioxa-8-aza-4-phosphatetracosan-1-aminium,4-hydroxy-7-[(1r,2e)-1-hydroxy-2-hexadecenyl]-n,n,n-trimethyl-9-oxo-,innersalt,4-oxide,(7s)-rel-
AKOS040754844
BP-29639
c16 sphingomyelin (d18:1/16:0)
samarium
62sm
samarium atom
CHEBI:33374
samario
7440-19-9
SM ,
42od65l39f ,
samarium, elemental
hsdb 7863
einecs 231-128-7
unii-42od65l39f
BP-21451
samarium [mi]
KZUNJOHGWZRPMI-UHFFFAOYSA-N
DTXSID4064688 ,
samarium ingot/button, ca. 50.8mm (2.0in) dia
AKOS024438061
samarium pieces, 12mm (0.47in) & down
samarium foil, 0.025mm (0.001in) thick
samarium foil, 0.1mm (0.004in) thick
samarium rod, 12.7mm (0.5in) dia
samarium ingot
samarium powder, -40 mesh
samarium foil, 0.25mm (0.01in) thick
samarium foil, 0.127mm (0.005in) thick
samarium foil, 0.62mm (0.024in) thick
samarium rod, 6.35mm (0.25in) dia
samarium pieces, sublimed dendritic
samarium powder (99.9% reo) 325 mesh
samarium powder
mfcd00011233
samarium pieces, 3n
samarium foil, 3n
samarium ingot, 3n
samarium foil, 1.0mm (0.04in) thick
samarium, lump, 25 mm max. lump size, weight 20 g, purity 99.9%
samarium, foil, thickness 0.7 mm, 15 mm diameter, purity 99%
samarium, lump, 25 mm max. lump size, weight 10 g, purity 99.9%
samarium, foil, 50x50mm, thickness 0.25mm, as rolled, 99%
samarium, foil, not light tested, 50x50mm, thickness 0.025mm, as rolled, 99%
samarium, rod, 50mm, diameter 6.35mm, cast, 99%
samarium, foil, not light tested, 25x25mm, thickness 0.025mm, as rolled, 99%
samarium, foil, 25x25mm, thickness 0.25mm, as rolled, 99%
samarium, foil, 50x50mm, thickness 0.1mm, as rolled, 99%
samarium, foil, not light tested, 25x25mm, thickness 0.005mm, as rolled, 99%
samarium, foil, thickness 0.5 mm, 15 mm diameter, purity 99%
samarium, powder, max. particle size 500 micron, weight 50 g, purity 99.9%
samarium, powder, 500 max. part. size (micron), weight 10 g, purity 99.9%
samarium, lump, 25 mm max. lump size, weight 50 g, purity 99.9%
samarium, foil, 25x25mm, thickness 0.1mm, as rolled, 99%
samarium, powder, 500 max. part. size (micron), weight 20 g, purity 99.9%
samarium, rod, 100mm, diameter 6.35mm, cast, 99%
samarium chunks,99.9%
samarium powder,99.9%
1,2-diacylglycerol-ld-sm-pool
DB12403
samarium nanofoil
Q1819
AMY22263
samarium metal organic framework
samarium metal-organic framework
lanthanum vanadium (lavo3) sputtering targets
ultra thin samarium nanofoil
D78246
samarium149
samariumpowder
samarium standard: sm @ 1000 microg/ml in 5% hno3
samarium standard: sm @ 10000 microg/ml in 5% hno3
dtxcid6047652
samarium metallicum
einecs (231-128-7)
samarium - sm @ 1000 microg/ml in 5% hno3

Research Excerpts

Overview

Samarium is a valuable and expensive material because it is one of a group of rare earth elements. Samarium diiodide is a versatile single electron transfer (SET) agent with various applications in organic chemistry.

ExcerptReferenceRelevance
"Samarium is a valuable and expensive material because it is one of a group of rare earth elements."( Selective preparation of samarium phosphates from transition metal mixed solution by two-step precipitation.
Iinuma, A; Onoda, H, 2023
)
1.93
"Samarium diiodide is a versatile single electron transfer (SET) agent with various applications in organic chemistry. "( Samarium Diiodide Acting on Acetone-Modeling Single Electron Transfer Energetics in Solution.
Achazi, AJ; Kelterer, AM; Miro, P; Paulus, B; Steiner, L; Vlaisavljevich, B, 2022
)
3.61
"Samarium (Sm) is a lanthanide of intermediate molar mass that is used in numerous high-technology applications including wind turbines, solar panels, and electric vehicles."( Determination of the speciation and bioavailability of samarium to Chlamydomonas reinhardtii in the presence of natural organic matter.
Fillion, MA; Rowell, JA; Smith, S; Wilkinson, KJ, 2018
)
1.45
"As Samarium EDTMP is a beta-emitter, the radiotherapy contributes to osteoblastic bone lesion control over time."( Optimal treatment of painful bone metastases with Samarium EDTMP in a haemodialysis patient: effectiveness and safety of internal radiotherapy.
Bourre, JC; Caravel, JP; Desruet, MD; Skalli, S; Vuillez, JP, 2009
)
1.12
"Samarium-153-EDTMP is an effective agent for palliation of widespread skeletal metastases because it concentrates in bone metastases which have an osteoblastic component. "( Samarium-153-EDTMP for palliation of ankylosing spondylitis, Paget's disease and rheumatoid arthritis.
Alberts, AS; Beek, AV; Brighton, SW; Kempff, P; Kritzinger, V; Louw, WK; van Rensburg, AJ; Westerink, HP, 1995
)
3.18
"Samarium-153 ((153)Sm) is an isotope with 0.8 MeV, subdivided in three different beta energies and 103 keV of gamma energy."( Samarium-153 for intravascular irradiation therapy with liquid-filled balloons to prevent restenosis: acute and long-term results in a hypercholesterolemic rabbit restenosis model.
Canova, R; Hauer, D; Moura, A; Munhoz, C; Oliva, L; Perussolo, R; Precoma, D; Yamada, A,
)
2.3
"Samarium-153-EDTMP is a 1:1 complex of radioactive Samarium-153 and a Tetraphosphonate [ethylenediamine-tetramethylene phosphonic acid (EDTMP)]."( Systemic metabolic radiotherapy with samarium-153 EDTMP for the treatment of painful bone metastasis.
Serafini, AN, 2001
)
1.3
"Samarium-153 is a radionuclide which can be produced in high yield by neutron irradiation and which has nuclear properties that make it attractive for use as a radiotherapeutic agent. "( 153Sm radiotherapeutic bone agents.
Edwards, B; Goeckeler, WF; Simon, J; Troutner, DE; Volkert, WA; Wilson, D, 1986
)
1.71

Effects

Samarium filter has an optimal k-edge for one-shot dual-energy sialography with gadolinium contrast. Samarium Sm-153-EDTMP has a high affinity for skeletal tissue.

Samarium (II) iodide has been employed to promote the vinylogous pinacol coupling reaction of aldehyde to alpha, beta-unsaturated ketones. Samarium filter has an optimal k-edge for one-shot dual-energy sialography with gadolinium contrast.

ExcerptReferenceRelevance
"Samarium filter has an optimal k-edge for one-shot dual-energy sialography with gadolinium contrast."( Advantage of appropriate K-edge filters for one-shot dual-energy subtraction sialography.
Kobayashi, S, 1998
)
1.74
"Samarium Sm-153-EDTMP has a high affinity for skeletal tissue and concentrates by chemiabsorption in areas of enhanced metabolic activity, where it associates with the hydroxyapatite crystal."( Systemic metabolic radiotherapy with samarium-153 EDTMP for the treatment of painful bone metastasis.
Serafini, AN, 2001
)
1.3
"Samarium (II) iodide has been employed to promote the vinylogous pinacol coupling reaction of aldehyde to alpha, beta-unsaturated ketones. "( [6-endo-trig mode cyclization to a hydrindanone using samarium (II) iodide].
Sono, M, 2003
)
2.01
"Samarium-153-EDTMP has disease-modifying potential in ankylosing spondylitis and Paget's disease and has palliative value in resistant rheumatoid arthritis."( Samarium-153-EDTMP for palliation of ankylosing spondylitis, Paget's disease and rheumatoid arthritis.
Alberts, AS; Beek, AV; Brighton, SW; Kempff, P; Kritzinger, V; Louw, WK; van Rensburg, AJ; Westerink, HP, 1995
)
2.46
"Samarium filter has an optimal k-edge for one-shot dual-energy sialography with gadolinium contrast."( Advantage of appropriate K-edge filters for one-shot dual-energy subtraction sialography.
Kobayashi, S, 1998
)
1.74
"Samarium Sm-153-EDTMP has a high affinity for skeletal tissue and concentrates by chemiabsorption in areas of enhanced metabolic activity, where it associates with the hydroxyapatite crystal."( Systemic metabolic radiotherapy with samarium-153 EDTMP for the treatment of painful bone metastasis.
Serafini, AN, 2001
)
1.3
"Samarium-153 has been standardized by 4 pi beta liquid-scintillation counting, with an uncertainty of 0.4%. "( The standardization of samarium-153.
Coursey, BM; Hoppes, DD; Schima, FJ; Unterweger, MP, 1987
)
2.03
"Samarium-153 EDTMP has been proposed as a radionuclide therapeutic agent to treat malignant bone tissue disorders. "( Radiation dose calculations in persons receiving injection of samarium-153 EDTMP.
Holmes, RA; Logan, KW; Volkert, WA, 1987
)
1.96

Actions

Samarium-153 EDTMP can inhibit bone invasion and osteolysis by Walker 256 carcinoma in rats. It has no effect on the growth of the transplanted tumor. Samarium(II) iodide promotes the stereoselective synthesis of cis-beta-alkoxy-gamma-alkyl-Gamma-lactones.

ExcerptReferenceRelevance
"Samarium(II) iodide promotes the stereoselective synthesis of cis-beta-alkoxy-gamma-alkyl-gamma-lactones under mild conditions starting from linear precursors. "( Samarium(II) promoted stereoselective synthesis of antiproliferative cis-beta-alkoxy-gamma-alkyl-gamma-lactones.
Donadel, OJ; Martín, T; Martín, VS; Padrón, JM, 2007
)
3.23
"Samarium-153 EDTMP can inhibit bone invasion and osteolysis by Walker 256 carcinoma in rats, but it has no effect on the growth of the transplanted tumor. "( [Inhibitory effect of samarium-153-labeled ethylenediaminetetramethylene phosphonate (EDTMP) on bone invasion and osteolysis in Walker 256 carcinoma bearing rats].
Fu, Z; Lei, XH; Shi, B, 1997
)
2.05

Treatment

ExcerptReferenceRelevance
"Samarium-treated patients needed less or not at all pain killers, having a better cost-effective result."( Samarium-153Sm-EDTMP as an equivalent variant to pharmaceutical analgesic treatment.
Baziotis, N; Galanos, A; Gennimata, V; Kouloulias, V; Lymperi, M; Mystakidou, K; Parpa, E; Patiraki, E; Sarafianou, E; Sgantzos, M; Tsoucalas, G,
)
2.3

Toxicity

Mice were fed different levels of these compounds for three generations. This aimed to evaluate the acute toxic effects of lanthanum (La), neodymium (Nd) and samarium (Sm) on the survival of the microcrustacean Daphnia similis.

ExcerptReferenceRelevance
" In order to evaluate possible toxic effects of scandium, chromium, lanthanum, samarium, europium, dysprosium, terbium, thulium, and ytterbium oxides, and barium sulfate upon growth, general development, reproduction, and lactation, mice were fed different levels of these compounds for three generations."( Studies of nutritional safety of some heavy metals in mice.
Gray, DH; Hutcheson, DP; Luckey, TD; Venugopal, B, 1975
)
0.48
" Bone pain appears to be alleviated by 153Sm-EDTMP with limited red marrow doses and no toxic effects in other organs."( Dosimetry and toxicity of samarium-153-EDTMP administered for bone pain due to skeletal metastases.
Bayouth, JE; Fossella, FV; Kasi, LP; Macey, DJ, 1994
)
0.59
"153Sm-EDTMP provides adequate and safe palliation but multiple doses can only be given in 38% of patients."( Dose response relationship and multiple dose efficacy and toxicity of samarium-153-EDTMP in metastatic cancer to bone.
Alberts, AS; Kritzinger, V; Louw, WK; Nel, JS; Smit, BJ; van Beek, A; van Rensburg, AJ, 1997
)
0.53
" Pain scores, adverse events, and hematologic parameters were assessed after each dose."( Safety and efficacy of repeat administration of samarium Sm-153 lexidronam to patients with metastatic bone pain.
Bushnell, DL; Ell, PJ; Quick, DP; Reid, RH; Sartor, O, 2007
)
0.6
"Mild, transient suppression of platelets and white blood cell counts was the most common adverse event after treatment."( Safety and efficacy of repeat administration of samarium Sm-153 lexidronam to patients with metastatic bone pain.
Bushnell, DL; Ell, PJ; Quick, DP; Reid, RH; Sartor, O, 2007
)
0.6
"0 mCi/kg of Sm-153 was both safe and effective and is a reasonable treatment option in patients whose bone pain responds and then recurs after an initial dose provided that adequate hematologic function is present at the time of drug administration."( Safety and efficacy of repeat administration of samarium Sm-153 lexidronam to patients with metastatic bone pain.
Bushnell, DL; Ell, PJ; Quick, DP; Reid, RH; Sartor, O, 2007
)
0.6
" For all 18 patients on the study, there were no drug-related serious adverse events or grade 4 nonhemmatologic toxicities."( Safety analysis of repeated high doses of samarium-153 lexidronam in men with hormone-naive prostate cancer metastatic to bone.
Bushnell, D; Higano, CS; Quick, DP; Sartor, O, 2008
)
0.61
" Therefore, the most analgetic effective and simultaneously the least toxic treatment is an important point of therapeutic management in this group of patients."( A prospective randomized trial: a comparison of the analgesic effect and toxicity of 153Sm radioisotope treatment in monotherapy and combined therapy including local external beam radiotherapy (EBRT) among metastatic castrate resistance prostate cancer (m
Antczak, A; Baczyk, M; Gut, P; Hrab, M; Milecki, P; Pisarek, M, 2013
)
0.39
" In agreement with others, though recognizing limitations, this study suggests RS is safe regarding cancer induction."( Radioactive synovectomy with (90) yttrium and (153) samarium hydroxyapatite in haemophilic joints: preliminary study on radiation safety.
Assi, PE; Bordim, A; da Fonseca, LM; Gabriel, MB; Gutfilen, B; Lorenzato, CS; Mendes, JD; Pacheco, LR; Souza, SA; Thomas, S, 2013
)
0.64
" In this context, this aimed to evaluate the acute toxic effects of lanthanum (La), neodymium (Nd) and samarium (Sm), as both single and binary and ternary mixtures on the survival of the microcrustacean Daphnia similis."( Acute toxicity of single and combined rare earth element exposures towards Daphnia similis.
Correia, FV; Egler, SG; Giese, EC; Heidelmann, GP; Roldão, TM; Saggioro, EM; Santos, GO, 2023
)
1.13

Pharmacokinetics

ExcerptReferenceRelevance
" The pharmacokinetic study showed a retention half-life of 25."( Pharmacokinetics and biodistribution of samarium-153-labelled OC125 antibody coupled to CITCDTPA in a xenograft model of ovarian cancer.
Bardiès, M; Chatal, JF; Faivre-Chauvet, A; Imai, S; Kraeber-Bodéré, F; Le Boterff, J; Mishra, A; Thédrez, P, 1996
)
0.56

Bioavailability

ExcerptReferenceRelevance
"64 micrograms/mL) are achieved by administration of the dose on an empty stomach 1 to 2 hours before or after meals; 3) corroborates other comparative studies reporting greater fasting bioavailability with this multiparticulate dosage form of erythromycin base than with reference single tablet or particle-in-tablet formulations; and 4) indicates that neutron activation of stable isotopes incorporated as a normal excipient in industrially-produced formulations provides an effective means for in vivo evaluation of dosage forms through gamma scintigraphy."( Gastrointestinal behavior of orally administered radiolabeled erythromycin pellets in man as determined by gamma scintigraphy.
Beihn, R; Digenis, GA; Ghebre-Sellassie, I; Iyer, U; McClain, C; Nesbitt, RU; Parr, AF; Randinitis, E; Sandefer, EP; Scheinthal, BM, 1990
)
0.28
" The results of fecal analysis indicated that transit of the two compounds in the gastrointestinal tract were similar, and bioavailability of CGP 43371 was calculated to be 9% based on the difference between the cumulative amounts of the nonabsorbable radioactive marker and CGP 43371 found in the feces."( Explaining variable absorption of a hypolipidemic agent (CGP 43371) in healthy subjects by gamma scintigraphy and pharmacokinetics.
Chan, K; Cipriano, A; Digenis, GA; Maniara, WM; Page, RC; Powell, ML; Ryo, UY; Sandefer, EP; Sun, JX; Walter, B, 1996
)
0.29
"33 mg per meal); on day 2, identical meals (taken with a calcium supplement to reduce iron bioavailability) were given with equivalent amounts of 58Fe-labeled iron and ytterbium; on day 3, a well-absorbed reference dose of 54Fe (3 mg) was given with 1 mg Dy."( Rare earth elements as nonabsorbable fecal markers in studies of iron absorption.
Crews, HM; Eagles, J; Fairweather-Tait, SJ; Minihane, AM; Owen, L, 1997
)
0.3
" In terms of the bioavailability of caffeine, the most important factor seemed to be the residence time in the ascending and transverse colon."( Neutron activation-based gamma scintigraphy in pharmacoscintigraphic evaluation of an Egalet constant-release drug delivery system.
Ariniemi, K; Hietanen, H; Kanerva, H; Kekki, T; Lindevall, K; Lipponen, M; Marvola, J; Marvola, M; Mykkänen, S; Slot, L, 2004
)
0.32
"Rapid passage through the proximal intestine can result in the low bioavailability of a drug substance with site-specific absorption characteristics in the upper gastrointestinal tract."( Are chitosan formulations mucoadhesive in the human small intestine? An evaluation based on gamma scintigraphy.
Ahonen, A; Kanerva, H; Lindevall, K; Marvola, J; Marvola, M; Säkkinen, M, 2006
)
0.33
"5% plasma bioavailability across four formulations tested."( Oral delivery of antisense oligonucleotides in man.
Geary, RS; Hardee, GE; Tillman, LG, 2008
)
0.35
" While comparing the results to those previously obtained from the bioavailability studies it could be concluded that it is possible to develop colon specific drug products that begin releasing the drug in the ileo-caecal junction or at the beginning of the ascending colon and spread the drug dose to a larger surface area by using enteric coats and hydrophilic polymers."( Neutron activation based gamma scintigraphic evaluation of enteric-coated capsules for local treatment in colon.
Ahonen, A; Kanerva, H; Lindevall, K; Marvola, J; Marvola, M; Marvola, T, 2008
)
0.35
" The analysis shows that Ca bioavailability is also a key factor within transfer."( Soil-to-plant transfer factors of radioactive Ca, Sm and Pd isotopes: critical assessment of the use of analogies to derive best-estimates from existing non-specific data.
Henner, P; Hurtevent, P; Thiry, Y, 2014
)
0.4
" Here, we assess the bioavailability of these anthropogenic microcontaminants in these rivers by analyzing the aragonitic shells of the freshwater bivalve Corbicula fluminea."( Rare earth elements in the aragonitic shell of freshwater mussel Corbicula fluminea and the bioavailability of anthropogenic lanthanum, samarium and gadolinium in river water.
Bau, M; Merschel, G, 2015
)
0.62
" The present study relates the speciation of Sm determined in the presence of natural organic matter (NOM) to its bioavailability to the unicellular green alga Chlamydomonas reinhardtii."( Determination of the speciation and bioavailability of samarium to Chlamydomonas reinhardtii in the presence of natural organic matter.
Fillion, MA; Rowell, JA; Smith, S; Wilkinson, KJ, 2018
)
0.73
" The purpose of this study was to determine the bioavailability of those REEs and their toxicity on Dreissena polymorpha after exposure to increasing concentration of Sm and Y for 28 days at 15 °C."( Response of the freshwater mussel, Dreissena polymorpha to sub-lethal concentrations of samarium and yttrium after chronic exposure.
Dubé, M; Gagné, F; Gagnon, C; Hanana, H; Turcotte, P, 2018
)
0.7
" Although many studies dealt with REE in soils and plants, there is still a need to precise their toxicity, bioavailability and transfer to plants in contaminated sites in order to restore such ecosystems."( Bioavailability and transfer of elevated Sm concentration to alfalfa in spiked soils.
Beguiristain, T; De Junet, A; Hu, R; Leyval, C, 2020
)
0.56
" A metal solution medium with (MS) and without EDTA and cyanocobalamin (MSq) as chelators was employed as the assay dilution water to assess REE bioavailability effects."( Acute toxicity of single and combined rare earth element exposures towards Daphnia similis.
Correia, FV; Egler, SG; Giese, EC; Heidelmann, GP; Roldão, TM; Saggioro, EM; Santos, GO, 2023
)
0.91

Dosage Studied

ExcerptRelevanceReference
"64 micrograms/mL) are achieved by administration of the dose on an empty stomach 1 to 2 hours before or after meals; 3) corroborates other comparative studies reporting greater fasting bioavailability with this multiparticulate dosage form of erythromycin base than with reference single tablet or particle-in-tablet formulations; and 4) indicates that neutron activation of stable isotopes incorporated as a normal excipient in industrially-produced formulations provides an effective means for in vivo evaluation of dosage forms through gamma scintigraphy."( Gastrointestinal behavior of orally administered radiolabeled erythromycin pellets in man as determined by gamma scintigraphy.
Beihn, R; Digenis, GA; Ghebre-Sellassie, I; Iyer, U; McClain, C; Nesbitt, RU; Parr, AF; Randinitis, E; Sandefer, EP; Scheinthal, BM, 1990
)
0.28
" No dose-response relationship was apparent for pain relief but reversible myelotoxicity was frequently observed at radiation absorbed doses to bone marrow greater than or equal to 270 cGy."( Samarium-153 EDTMP therapy of disseminated skeletal metastasis.
Claringbold, PG; Fleay, RF; Hetherington, EL; Hoffman, RF; Martindale, AA; Sorby, P; Turner, JH, 1989
)
1.72
" Prospective calculation of radiation dosimetry in each patient permitted an accurate dosage schedule based upon total red marrow exposure, starting at 100 cGy and escalating to 280 cGy to define the dose-limiting myelotoxicity."( A phase I study of samarium-153 ethylenediaminetetramethylene phosphonate therapy for disseminated skeletal metastases.
Claringbold, PG; Hetherington, EL; Martindale, AA; Sorby, P; Turner, JH, 1989
)
0.61
" These radiation dose estimates permit patients at risk to be identified prior to reaching myelotoxicity and develop dose-response models."( Dosimetry and toxicity of samarium-153-EDTMP administered for bone pain due to skeletal metastases.
Bayouth, JE; Fossella, FV; Kasi, LP; Macey, DJ, 1994
)
0.59
" There is not a clear dose-response relationship."( Dose response relationship and multiple dose efficacy and toxicity of samarium-153-EDTMP in metastatic cancer to bone.
Alberts, AS; Kritzinger, V; Louw, WK; Nel, JS; Smit, BJ; van Beek, A; van Rensburg, AJ, 1997
)
0.53
" The chelate can be incorporated into the formulation as a non-radioactive excipient and the intact dosage form can then be neutron activated to produce 153Sm."( Evaluation of 153Sm-diethylenetriaminepentaacetic acid for radiolabelling of pharmaceutical dosage forms by neutron activation.
Awang, MB; Davis, SS; Hardy, JG; Parry, SJ; Pimm, MV; Wilding, IR, 1994
)
0.29
" This study attempted to quantify the radiation dosage to individual lesions on both the macroscopic and microscopic level."( Quantifying the radiation dosage to individual skeletal lesions treated with samarium-153-EDTMP.
Alberts, AS; Louw, WK; van Rensburg, AJ, 1998
)
0.53
"1 MBq/g, regardless of the dosage administered."( Quantifying the radiation dosage to individual skeletal lesions treated with samarium-153-EDTMP.
Alberts, AS; Louw, WK; van Rensburg, AJ, 1998
)
0.53
" However, by this new scintigraphic quantification method, bone uptake and soft-tissue retention can be calculated separately, thus providing more detailed kinetic data and potentially improving the dosimetry of these radiopharmaceuticals in, for example, assessment of radiation dosage to bone and bone marrow."( Skeletal uptake and soft-tissue retention of 186Re-HEDP and 153Sm-EDTMP in patients with metastatic bone disease.
Brenner, W; Henze, E; Kampen, AM; Kampen, WU, 2001
)
0.31
" Nadirs were approximately half of baseline at 4 weeks after dosing with recovery by Week 8 in 90% of patients."( Safety and efficacy of repeat administration of samarium Sm-153 lexidronam to patients with metastatic bone pain.
Bushnell, DL; Ell, PJ; Quick, DP; Reid, RH; Sartor, O, 2007
)
0.6
" Mean applied dosage was 40 MBq/kg of the patient's body weight."( Prospective evaluation of samarium-153-EDTMP radionuclide treatment for bone metastases in patients with hormone-refractory prostate cancer.
Dolezal, J; Odrazka, K; Vizda, J, 2007
)
0.64
" Pain palliation was accompanied by an improvement in mobility and a decrease in necessary dosage of analgesics."( Prospective evaluation of samarium-153-EDTMP radionuclide treatment for bone metastases in patients with hormone-refractory prostate cancer.
Dolezal, J; Odrazka, K; Vizda, J, 2007
)
0.64
" In this study, a variety of oral solid dosage formulations were evaluated and it was determined that pulsing the delivery of sodium caprate (C10), a well-known permeation enhancer, in a novel manner may provide optimal ASO plasma bioavailability."( Oral delivery of antisense oligonucleotides in man.
Geary, RS; Hardee, GE; Tillman, LG, 2008
)
0.35
" The models are presented in two- and three-dimensional previews and the dosage profiles are shown by isodose curves superimposed onto the heart model."( Development of a voxel model of the heart for dosimetry.
Campos, TP; Fonseca, KR; Trindade, BM, 2011
)
0.37
" Furthermore, the shape and size of the products can be further manipulated by adjusting the dosage of Cit(3-) and pH values in the initial solution."( Highly uniform and monodisperse GdOF:Ln3+ (Ln = Eu, Tb, Tm, Dy, Ho, Sm) microspheres: hydrothermal synthesis and tunable-luminescence properties.
Cheng, Z; Geng, D; Kang, X; Li, X; Lian, H; Lin, J; Shang, M; Wu, Y; Zhang, Y, 2013
)
0.39
"This study aimed to formulate floating gastroretentive tablets containing metformin hydrochloric acid (HCl), using various grades of hydrogel such as tamarind powders and xanthan to overcome short gastric residence time of the conventional dosage forms."( Gastroretentive behavior of orally administered radiolabeled tamarind seed formulations in rabbits validated by gamma scintigraphy.
Chung, LY; Fadaeinasab, M; Karimian, H; Khaing, SL; Mohamad Haron, DE; Noordin, MI; Razavi, M; Yeong, CH, 2017
)
0.46
" New data call into question dosing frequency, with quarterly dosing strategy potentially achieving similar effect compared to monthly dosing for zoledronic acid."( Bone-targeted therapies to reduce skeletal morbidity in prostate cancer.
Agarwal, N; Dorff, TB,
)
0.13
" Our results indicated impact of Ce and Sm on proline accumulation depended on the dosage of Ce and Sm."( Cerium and samarium blocked antioxidant enzymes in wheat plants.
Ganjali, MR; Haghighi, AK; Mirmasoumi, M; Niknam, V; Rezayian, M, 2023
)
1.3
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Roles (1)

RoleDescription
mouse metaboliteAny 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]

Drug Classes (3)

ClassDescription
sphingomyelin d18:1/16:0A sphingomyelin d18:1 in which the fatty acyl group contains 16 carbons and is fully saturated.
lanthanoid atom
f-block element atom
[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]

Pathways (3)

PathwayProteinsCompounds
Sphingolipid metabolism (integrated pathway)1167
Sphingolipid metabolism: integrated pathway163
Sphingolipids metabolism pathway063

Bioassays (1)

Assay IDTitleYearJournalArticle
AID1573021Inhibition of Bacillus cereus sphingomyelinase2018Journal of medicinal chemistry, 07-26, Volume: 61, Issue:14
Fluorine and Fluorinated Motifs in the Design and Application of Bioisosteres for Drug Design.
[information is prepared from bioassay data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (1,002)

TimeframeStudies, This Drug (%)All Drugs %
pre-1990158 (15.77)18.7374
1990's153 (15.27)18.2507
2000's297 (29.64)29.6817
2010's329 (32.83)24.3611
2020's65 (6.49)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 67.56

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

MetricThis Compound (vs All)
Research Demand Index67.56 (24.57)
Research Supply Index6.93 (2.92)
Research Growth Index4.68 (4.65)
Search Engine Demand Index139.07 (26.88)
Search Engine Supply Index2.36 (0.95)

This Compound (67.56)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials0 (0.00%)5.53%
Trials42 (4.29%)5.53%
Reviews1 (1.89%)6.00%
Reviews54 (5.52%)6.00%
Case Studies0 (0.00%)4.05%
Case Studies35 (3.58%)4.05%
Observational0 (0.00%)0.25%
Observational1 (0.10%)0.25%
Other52 (98.11%)84.16%
Other847 (86.52%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]