Peroxynitrite production and activation of poly (adenosine diphosphate-ribose) synthetase in spinal cord injury.

Scott, G S; Jakeman, L B; Stokes, B T; Szabó, C · Ann Neurol · 1999

basic_science · Level V

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Abstract

Peroxynitrite formation and the subsequent activation of the nuclear enzyme, poly (adenosine diphosphate [ADP]-ribose) synthetase (PARS), has been implicated in the pathogenesis of several neurodegenerative disorders. Here, we demonstrate that nitrotyrosine, an indicator of peroxynitrite generation, and poly (ADP) ribose, a marker of PARS activation, were selectively localized within tissues from spinal cord-injured rats. Our data implicate a role for peroxynitrite production and PARS activation in the development of spinal cord trauma.

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