Protective effects of sodium p-aminosalicylic acid on learning and memory via increasing the number of basal forebrain choline acetyltransferase neurons in manganese-exposed rats
2015
This study was conducted to investigate the protective effects of sodium p-aminosalicylic acid (PAS-Na) on learning and memory via increasing the number of basal forebrain choline acetyltransferase (ChAT) neurons in manganese (Mn)-exposed rats. Male Sprague Dawley rats were divided into following groups: the normal control I, II, and III groups, the model I, II, and III groups, low- and high-dose PAS-Na treatment (L- and H-PAS) group, PAS-Na prevention (PAS-P) group, and PAS-Na treatment (PAS-T) group. The model I, II, and III groups, L- and H-PAS, and PAS-T groups received intraperitoneal (i.p.) injection of 15 mg/kg manganese chloride tetrahydrate (MnCl2·4H2O) for 3 or 12 weeks, while the normal control I, II, and III groups received i.p. injection of an equal volume of saline; L- and H-PAS and PAS-T groups received back subcutaneous (s.c.) injection of PAS-Na (100 and 200 mg/kg) for the next 5 or 6 weeks, whereas model I and II group received back s.c. injection of an equal volume of saline. However, P...
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