During the last 10-12 years, the research on homocysteine has become very active.About 1500 of articles are now published each year on homocysteine and the vitamins involved in its metabolism.A disturbed homocysteine metabolism can be an underlying factorfor pregnancy complications and fetal malformations, cardiovasculardisease, dementia, psychiatric and neurologic disorders and possiblycarcinogenesis.A disturbed homocysteine metabolism can in most...