69453
L-Homocysteine
≥98.0% (NT)
Synonym(s):
(S)-2-Amino-4-mercaptobutyric acid
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About This Item
Linear Formula:
HSCH2CH2CH(NH2)COOH
CAS Number:
Molecular Weight:
135.18
EC Number:
MDL number:
UNSPSC Code:
12352204
PubChem Substance ID:
NACRES:
NA.32
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product name
L-Homocysteine, ≥98.0% (NT)
Assay
≥98.0% (NT)
form
powder
optical activity
[α]/D 25.5±1.5°, c = 1 in 1 M HCl
color
white
mp
263-265 °C
application(s)
cell analysis
relevant disease(s)
Alzheimer′s disease
storage temp.
−20°C
SMILES string
N[C@@H](CCS)C(O)=O
InChI
1S/C4H9NO2S/c5-3(1-2-8)4(6)7/h3,8H,1-2,5H2,(H,6,7)/t3-/m0/s1
InChI key
FFFHZYDWPBMWHY-VKHMYHEASA-N
General description
L-homocysteine is used to diagnose homocystinuria.
Application
L-homocysteine has been used as a supplement in cell culture media.
Biochem/physiol Actions
Elevated homocysteine levels in plasma and tissue are associated with brain atrophy in Alzheimer′s disease as well as in healthy eldery subjects. Increased homocysteine is due to deficiencies in vitamin B status, specifically folate, B6 and B12 vitamins, which act as cofactors for enzymes involved in homocysteine metabolism.
Packaging
Bottomless glass bottle. Contents are inside inserted fused cone.
Certificates of Analysis (COA)
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Elevated plasma total homocysteine is associated with increased risk of dementia/Alzheimer's disease, but underlying pathophysiological mechanisms are not fully understood. This study investigated possible links between baseline homocysteine, and post-mortem neuropathological and magnetic resonance imaging findings up to 10 years
Gwenaëlle Douaud et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(23), 9523-9528 (2013-05-22)
Is it possible to prevent atrophy of key brain regions related to cognitive decline and Alzheimer's disease (AD)? One approach is to modify nongenetic risk factors, for instance by lowering elevated plasma homocysteine using B vitamins. In an initial, randomized
K Mehlig et al.
Heart (British Cardiac Society), 99(23), 1761-1765 (2013-09-10)
An elevated level of total plasma homocysteine (tHcy) has been associated with risk of coronary heart disease (CHD). The level of tHcy is affected by lifestyle, in addition to genetic predisposition. The methylene tetrahydrofolate reductase (MTHFR) 677C>T polymorphism (rs1801133) is
SAGE open medicine, 286054-286054 (2014)
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