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homocysteine

/ˌhəʊməʊˈsɪstiːn/
noun
1.
an amino acid occurring as an intermediate in the metabolism of methionine. Elevated levels in the blood may indicate increased risk of cardiovascular disease
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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homocysteine in Medicine

homocysteine ho·mo·cys·te·ine (hō'mə-sĭs'tə-ēn', -ĭn, -tē-)
n.
An amino acid that is a homologue of cysteine, is produced by the demethylation of methionine, and forms a complex with serine that metabolizes to produce cysteine and homoserine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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homocysteine in Science
homocysteine
  (hō'mə-sĭs'tə-ēn', -ĭn, -tē-)   
An amino acid used normally by the body in cellular metabolism and the manufacture of proteins. Elevated concentrations in the blood are thought to increase the risk for heart disease by damaging the lining of blood vessels and increasing the risk of blood clot formation. High homocysteine levels are associated with certain vitamin deficiencies and metabolic disorders. Chemical formula: C4H9NO2S.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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