منابع مشابه
Nitric oxide and cardiac parasympathetic control in human heart failure.
Cardiac parasympathetic control has prognostic significance in heart failure, but the control mechanisms of this system remain poorly defined. We have demonstrated previously a facilitatory role for nitric oxide (NO) in the parasympathetic control of heart rate in young healthy human subjects. In view of the complex abnormalities of regional NO activity observed in chronic heart failure, we now...
متن کاملHeart Failure Uncoupled Cardiac Nitric Oxide Synthase Mediates Diastolic Dysfunction
Background—Heart failure with preserved ejection fraction is 1 consequence of hypertension and is caused by impaired cardiac diastolic relaxation. Nitric oxide (NO) is a known modulator of cardiac relaxation. Hypertension can lead to a reduction in vascular NO, in part because NO synthase (NOS) becomes uncoupled when oxidative depletion of its cofactor tetrahydrobiopterin (BH 4) occurs. Similar...
متن کاملNitric Oxide and Cardiac Function
Nitric oxide (NO) is produced from virtually all cell types composing the myocardium and regulates cardiac function through both vascular-dependent and -independent effects. The former include regulation of coronary vessel tone, thrombogenicity, and proliferative and inflammatory properties as well as cellular cross-talk supporting angiogenesis. The latter comprise the direct effects of NO on s...
متن کاملNitric oxide and cardiac function.
Nitric oxide (NO) participates in the control of contractility and heart rate, limits cardiac remodeling after an infarction and contributes to the protective effect of ischemic pre- and postconditioning. Low concentrations of NO, with production of small amounts of cGMP, inhibit phosphodiesterase III, thus preventing the hydrolysis of cAMP. The subsequent activation of a protein-kinase A cause...
متن کاملNitric oxide in cardiac transplantation.
The endothelium of coronary arteries has been identified as an important organ locally regulating coronary perfusion and cardiac function by paracrine secretion of nitric oxide (NO) and other vasoactive mediators. Therefore, the established organ procurement in cardiac transplantation using hypothermic storage solutions designed to preserve myocytes but not endothelial cells has to be criticall...
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ژورنال
عنوان ژورنال: Clinical Cardiology
سال: 1997
ISSN: 0160-9289,1932-8737
DOI: 10.1002/clc.4960201009