Abstract:
:Tetrahydrobiopterin (BH(4)) is an essential cofactor for aromatic amino acid hydroxylases and for all three nitric oxide synthase (NOS) isoforms. It also has a protective role in the cell as an antioxidant and scavenger of reactive nitrogen and oxygen species. Experimental studies in humans and animals demonstrate that decreased BH(4)-bioavailability, with subsequent uncoupling of endothelial NOS (eNOS) plays an important role in the pathogenesis of endothelial dysfunction, hypertension, ischemia-reperfusion injury, and pathologic cardiac remodeling. Synthetic BH(4) is clinically approved for the treatment of phenylketonuria, and experimental studies support its capacity for ameliorating cardiovascular pathophysiologies. To date, however, the translation of these studies to human patients remains limited, and early results have been mixed. In this review, we discuss the pathophysiologic role of decreased BH(4) bioavailability, molecular mechanisms regulating its metabolism, and its potential therapeutic use as well as pitfalls as an NOS-modulating drug. This article is part of a special issue entitled ''Key Signaling Molecules in Hypertrophy and Heart Failure.''
journal_name
J Mol Cell Cardioljournal_title
Journal of molecular and cellular cardiologyauthors
Moens AL,Kietadisorn R,Lin JY,Kass Ddoi
10.1016/j.yjmcc.2011.03.009subject
Has Abstractpub_date
2011-10-01 00:00:00pages
559-63issue
4eissn
0022-2828issn
1095-8584pii
S0022-2828(11)00121-0journal_volume
51pub_type
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journal_title:Journal of molecular and cellular cardiology
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journal_title:Journal of molecular and cellular cardiology
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journal_title:Journal of molecular and cellular cardiology
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journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章,评审
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pub_type: 杂志文章
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journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
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journal_title:Journal of molecular and cellular cardiology
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journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
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journal_title:Journal of molecular and cellular cardiology
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journal_title:Journal of molecular and cellular cardiology
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journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
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journal_title:Journal of molecular and cellular cardiology
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journal_title:Journal of molecular and cellular cardiology
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