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Serotonin or 5-hydroxytryptamine (5-HT) is a monoamine neurotransmitter synthesized by the aromatic amino acid decarboxylase using 5-hydroxytryptophan (5-HTP) as a substrate. It was recently shown that serotonin and its precursor have powerful antioxidant properties. The aim of this study was to evaluate the effect of reduction in 5-HT levels by para-chlorophenylalanine (pCPA) and their restoration...
Poly(ADP-ribose) polymerase-1 (PARP-1, EC 2.4.2.30), a DNA-bound enzyme, plays a key role in genome stability, but after overactivation can also be responsible for cell death. The aim of the present study was to investigate PARP-1 activity in the hippocampus, brain cortex, striatum and cerebellum in adult (4 months) and aged (24 months) specific pathogen free Wistar rats and to correlate it with PARP-1...
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