Homocysteine
- homocysteine is produced by the demethylation of methionine, an essential amino acid
- homocystinuria - due to a lack of the enzyme cystathione- beta-synthase which usually convert methionine to cystathione. This results in accumulation of the metabolic intermediates homocysteine and homocystine (referred to as homocyst(e)ine). Homocystine is excreted in the urine
- homocystinuria is associated with a high risk of thromboembolic events including stroke and myocardial infarction in early adolescence or even in childhood
- evidence suggests that moderately elevated homocysteine plasma levels (moderate hyperhomocysteinaemia) are common in the general population - see menu item
Reference:
- Lancet (1999), 354, 407-413.
- British Heart Foundation, Factfile 3/2000.
Related pages
Create an account to add page annotations
Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.