PMID- 20495681 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220321 IS - 1875-6506 (Electronic) IS - 1573-4021 (Print) IS - 1573-4021 (Linking) VI - 5 IP - 2 DP - 2009 May 1 TI - Hyperhomocysteinemia and Endothelial Dysfunction. PG - 158-165 AB - Hyperhomocysteinemia (HHcy) is a significant and independent risk factor for cardiovascular diseases. Endothelial dysfunction (ED) is the earliest indicator of atherosclerosis and vascular diseases. We and others have shown that HHcy induced ED in human and in animal models of HHcy induced by either high-methionine load or genetic deficiency. Six mechanisms have been suggested explaining HHcy-induced ED. These include 1) nitric oxide inhibition, 2) prostanoids regulation, 3) endothelium-derived hyperpolarizing factors suppression, 4) angiotensin II receptor-1 activation, 5) endothelin-1 induction, and 6) oxidative stress. The goal of this review is to elaborate these mechanisms and to discuss biological and molecular events related to HHcy-induced ED. FAU - Cheng, Zhongjian AU - Cheng Z AD - Department of Pharmacology, Temple University School of Medicine, Philadelphia, PA, USA. FAU - Yang, Xiaofeng AU - Yang X FAU - Wang, Hong AU - Wang H LA - eng GR - R01 HL077288-06/HL/NHLBI NIH HHS/United States GR - R01 HL077288/HL/NHLBI NIH HHS/United States GR - R01 HL117654/HL/NHLBI NIH HHS/United States GR - R01 HL082774/HL/NHLBI NIH HHS/United States GR - R01 HL067033-08/HL/NHLBI NIH HHS/United States GR - R01 HL082774-04/HL/NHLBI NIH HHS/United States GR - R01 HL067033/HL/NHLBI NIH HHS/United States PT - Journal Article PL - United Arab Emirates TA - Curr Hypertens Rev JT - Current hypertension reviews JID - 101239891 PMC - PMC2873778 MID - NIHMS198207 EDAT- 2010/05/25 06:00 MHDA- 2010/05/25 06:01 PMCR- 2010/05/20 CRDT- 2010/05/25 06:00 PHST- 2010/05/25 06:00 [entrez] PHST- 2010/05/25 06:00 [pubmed] PHST- 2010/05/25 06:01 [medline] PHST- 2010/05/20 00:00 [pmc-release] AID - 10.2174/157340209788166940 [doi] PST - ppublish SO - Curr Hypertens Rev. 2009 May 1;5(2):158-165. doi: 10.2174/157340209788166940.