Abstract
Objective To investigated the antisecrectory activities of the methanol extract, chloroform fraction and methanol fraction of Picralima nitida seeds. Methods The methanol extract of Picralima nitida seeds was fractionated into chloroform fraction and methanol fraction. They were evaluated for antiulcer activity and gastric emptying time in rats using aspirin-pylorus-ligation model. Results Oral administration of the methanol extract, chloroform fraction and methanol fraction at 1 000 mg/kg reduced gastric ulcer by 56.4%, 40.0% and 56.3%, respectively; and the fractions of the extract significantly (P<0.05) reduced gastric emptying time when compared to the control. Gastric acidity was significantly decreased when compared with saline group, 40.25 mEq/L in methanol extract, 50.0 mEq/L in chloroform fraction 51.25 mEq/L in methanol fration but had no significant effect on the gastric secretion volume. Conclusions These findings showed that methanol extract, chloroform fraction and methanol fraction of the seeds of Picralima possessed potent antiulcer properties and some antisecretory properties.
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