pubmed-article:17141750 | pubmed:abstractText | Mild hyperhomocysteinemia is associated with premature vascular disease. The mechanism behind the vascular injuries is, however, still unknown. Homocysteine may be catabolized in the trans-sulfuration pathway to cysteine. Cystathionine beta-synthase, which catalyses the first step in the trans-sulfuration pathway is redox-sensitive. We have therefore investigated total extracellular homocysteine turnover in the presence of oxidative stress in human cell lines. | lld:pubmed |