PMID- 19149701 OWN - NLM STAT- MEDLINE DCOM- 20090511 LR - 20191111 VI - 4 IP - 1 DP - 2009 Jan TI - Homocysteine and heart failure: an overview. PG - 15-21 AB - An elevated plasma level of homocysteine (HCY) is associated with increased risk of thrombotic and atherosclerotic vascular disease. Several studies and recent patents have demonstrated that hyper-homocysteinemia (HHCY) is an independent risk factor for vascular disease. An elevated homocysteine level has been also reported to be a risk factor for the development of congestive heart failure (CHF) in individuals free of myocardial infarction. Animal studies showed that experimental HHCY induces systolic and diastolic dysfunction, as well as an increased BNP expression. Moreover, hyperhomocysteinemic animals exhibit an adverse cardiac remodeling characterized by accumulation of interstitial and perivascular collagen. The mechanisms leading from an elevated HCY level to reduced pump function and adverse cardiac remodeling are a matter of speculation. Existing data indicate that direct effects of HCY on the myocardium, as well as nitric oxide independent vascular effects, are involved. Preliminary data from small intervention trials have initiated the speculation that HCY lowering therapy by micronutrients may improve clinical as well as laboratory markers of CHF. In conclusion, HHCY might be a potential etiological factor in CHF. Future studies need to explore the exact pathomechanisms of HHCY in CHF. Moreover, larger intervention trials are needed to clarify whether modification of plasma HCY by B-vitamin supplementation improves the clinical outcome in CHF patients. FAU - Vizzardi, Enrico AU - Vizzardi E AD - Department of Cardiology, University of Brescia, Brescia, Italy. enrico.vizzardi@tin.it FAU - Bonadei, Ivano AU - Bonadei I FAU - Zanini, Gregoriana AU - Zanini G FAU - Frattini, Silvia AU - Frattini S FAU - Fiorina, Claudia AU - Fiorina C FAU - Raddino, Riccardo AU - Raddino R FAU - Dei Cas, Livio AU - Dei Cas L LA - eng PT - Journal Article PT - Review PL - United Arab Emirates TA - Recent Pat Cardiovasc Drug Discov JT - Recent patents on cardiovascular drug discovery JID - 101263805 RN - 0LVT1QZ0BA (Homocysteine) SB - IM MH - Animals MH - Clinical Trials as Topic MH - Heart Failure/*etiology/metabolism MH - Homocysteine/chemistry/*metabolism/physiology MH - Humans MH - Hyperhomocysteinemia/*complications/physiopathology MH - Vascular Diseases/complications MH - Vitamin B 12 Deficiency/complications RF - 84 EDAT- 2009/01/20 09:00 MHDA- 2009/05/12 09:00 CRDT- 2009/01/20 09:00 PHST- 2009/01/20 09:00 [entrez] PHST- 2009/01/20 09:00 [pubmed] PHST- 2009/05/12 09:00 [medline] AID - 10.2174/157489009787259991 [doi] PST - ppublish SO - Recent Pat Cardiovasc Drug Discov. 2009 Jan;4(1):15-21. doi: 10.2174/157489009787259991.