Definition of homocysteine in English:

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Pronunciation: /ˌhōməˈsistēn/


An amino acid that occurs in the body as an intermediate in the metabolism of methionine and cysteine.
  • Chemical formula: HSCH2CH2CH(NH2)COOH
Example sentences
  • Metabolism of homocysteine requires an adequate supply of folic acid.
  • It also lowers the levels of amino acid homocysteine which, when found in high levels in the bloodstream, is linked to an increased risk of heart disease.
  • Levels of homocysteine, the amino acid linked to heart disease, are also higher in smokers.
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