homocysteine

(redirected from homocystine)
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homocysteine

[¦hä·mə′sis·tēn]
(biochemistry)
C4H9O2NS An amino acid formed in animals by demethylation of methionine.
References in periodicals archive ?
However, under the conditions of reduced or total loss of activity of homocystine metabolizing enzyme due to mutation in corresponding gene, this metabolic balance is disturbed resulting into hyperhomocystenimia.
We have also reported (17) selective and highly sensitive HRS assay for mercury (II) recognition in 5 ppb level in aqueous solution using gold nanopartilces modified with mercaptopropionic acid, homocystine and 2,6-pyridinedicarboxylic acid.
Total plasma homocysteine (Hcys), which was measured by HPLC method, was defined as the sum of all homocysteine species in plasma, including homocysteine, homocystine, mixed disulfides, and protein-bound forms (8).
Too much homocystine can lead to psychoses and atherosclerosis.
9:20 Introductory remarks -- Jon Jackson, Department of Anatomy and Cell Biology, University of North Dakota 9:30 Patrick Carr *, Department of Anatomy and Cell Biology, University of North Dakota 9:50 Alan Allery *, University of North Dakota 10:10 COFFEE BREAK 10:30 "Arsenic deprivation affects homocysteine remethylation in rats fed homocystine and choline.
It also lowers the levels of homocystine, an amino acid that increases the risk of heart attack and stroke.
Upon further review, what Ravech's doctors eventually found out was the buildup in his system of an amino acid called homocystine.
Folate administration, although proven to reduce homocystine levels, has not currently been shown to reduce levels of any cardiovascular disease.
The most recent association has been with the concentration of an amino acid called homocystine in the blood.
A previously unrecognized risk factor for stroke, which is prevalent and modifiable, is elevated plasma homocystine.
Homocysteine is a nonessential, non-protein-forming, thiol-containing amino acid that is readily oxidized in the blood to homocystine and other disulfides.