| Literature DB >> 12419488 |
Jun Yang1, Lori K Klaidman, Artak Nalbandian, Jasmine Oliver, Mei L Chang, Pak H Chan, James D Adams.
Abstract
This study examined the effects of nicotinamide on adenosine triphosphate (ATP) and nicotinamide adenine (NAD) levels and poly(adenosine diphosphate-ribose) (poly(ADP-ribose)) polymerase activity following ischemia and reperfusion in ketamine pretreated rats. Nicotinamide was administered at the end of the ischemic period. Nicotinamide protected against the depletion of ATP and NAD at 6 and 24 h of reperfusion. Nicotinamide is known to inhibit poly(ADP-ribose) polymerase at early time points, but was found to increase poly(ADP-ribose) polymerase activity at 24 h of reperfusion. It appears that nicotinamide can help maintain cellular energetics during reperfusion, thereby protecting cells from necrotic and apoptotic mechanisms.Entities:
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Year: 2002 PMID: 12419488 DOI: 10.1016/s0304-3940(02)01005-4
Source DB: PubMed Journal: Neurosci Lett ISSN: 0304-3940 Impact factor: 3.046