Here , we examined the temporal profiles of MMP-9 in blood and brain using a rat model of acute focal cerebral ischemia.
We hypothesize that MMP-9 siRNA can be effective as an MMP-9 protein inhibitor in a rat focal ischemia model.
The present study examined the effect of post-ischemic pharmacological inhibition of PARP in a rat focal cerebral ischemia model.
One candidate pathway is DNA damage leading to activation of the nuclear enzyme , poly (ADP-ribose) polymerase (PARP) , which catalyzes attachment of ADP ribose units from NAD to nuclear proteins following DNA damage.
Thus under conditions that it enhances unscheduled DNA synthesis , nicotinamide causes marked effects on the metabolism of NAD + and poly (ADP-ribose).