Role of the peroxynitrite-poly (ADP-ribose) polymerase pathway in the pathogenesis of liver injury.

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.

journal_name

Curr Pharm Des

authors

Gero D,Szabó C

doi

10.2174/138161206777947579

subject

Has Abstract

pub_date

2006-01-01 00:00:00

pages

2903-10

issue

23

eissn

1381-6128

issn

1873-4286

journal_volume

12

pub_type

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