Abstract
Oxidative and nitrosative stress triggers DNA strand breakage, which then activates the nuclear enzyme poly(ADP-ribose) polymerase (PARP). One of the key triggers of DNA single strand breakage in pathophysiological conditions is peroxynitrite, a reactive species produced from the reaction of nitric oxide and superoxide. Activation of PARP can dramatically lower the intracellular concentration of its substrate, nicotinamide adenine dinucleotide, thus slowing the rate of glycolysis, electron transport and subsequently ATP formation. This process can result in cell dysfunction and cell death. Here we review the role of PARP in various forms of liver injury.
Keywords: Reperfusion, liver, hepatic, sepsis, nitric oxide, superoxide, peroxynitrite
Current Pharmaceutical Design
Title: Role of the Peroxynitrite - Poly (ADP-Ribose) Polymerase Pathway in the Pathogenesis of Liver Injury
Volume: 12 Issue: 23
Author(s): Domokos Gero and Csaba Szabo
Affiliation:
Keywords: Reperfusion, liver, hepatic, sepsis, nitric oxide, superoxide, peroxynitrite
Abstract: Oxidative and nitrosative stress triggers DNA strand breakage, which then activates the nuclear enzyme poly(ADP-ribose) polymerase (PARP). One of the key triggers of DNA single strand breakage in pathophysiological conditions is peroxynitrite, a reactive species produced from the reaction of nitric oxide and superoxide. Activation of PARP can dramatically lower the intracellular concentration of its substrate, nicotinamide adenine dinucleotide, thus slowing the rate of glycolysis, electron transport and subsequently ATP formation. This process can result in cell dysfunction and cell death. Here we review the role of PARP in various forms of liver injury.
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Cite this article as:
Gero Domokos and Szabo Csaba, Role of the Peroxynitrite - Poly (ADP-Ribose) Polymerase Pathway in the Pathogenesis of Liver Injury, Current Pharmaceutical Design 2006; 12 (23) . https://dx.doi.org/10.2174/138161206777947579
DOI https://dx.doi.org/10.2174/138161206777947579 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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