THE INFLUENCE OF EXTRACTS FROM PRUNUS DOMESTICA ON DISORDERS OF INTESTINAL PERISTALSIS INDUCED BY BARIUM CHLORIDE ACTION IN MICE

Abstract

The aim of the work. To confirm by experimental studies the laxative activity of fiber-containing extract and extract with polysaccharide complex obtained from the Prunus domestica fruits in a model of intestinal peristalsis damage induced by barium chloride in mice, to identify the most effective extract among them and determine its effective dose. Materials and Methods. Dry extracts from the Prunus domestica fruits (fiber-containing extract (PEF) and extract with polysaccharide complex (PEPC)) were used in the experimental studiesThe investigated extracts were obtained by the original method at the Department of Chemistry of Natural Compounds of the National University of Pharmacy. The study of the laxative effect of the PEF and PEPC extracts was conducted in the model of intestinal peristalsis damage induced by barium chloride in mice. The studied effect was determined by the rate of contrast mass passage through the intestines. Results and Discussion. The introduction of PEF and PEPC at doses of 75 mg/kg, 100 mg/kg, 200 mg/kg and the reference drug natrii picosulfas at a dose of 2.3 mg/kg abolished the spasm of smooth muscles of the stomach and intestine. It was evidenced by the lengthening of contrast mass pathway through the intestines of mice to the level of intact control. Moreover, in the case of the use of PEF extract, the intensity of the laxative activity had a dose-dependent manner: with increasing dose, the intensity of the action increased. At a dose of 200 mg/kg, in contrast to the doses of 75 and 100 mg/kg, the contrast mass pathway was statistically significantly higher than in the control group. The laxative effect of 200 mg/kg PEF extract was 29% (by percentage of the contrast mass pathway to the entire length of the intestine), which exceeded the maximum activity of 100 mg/kg PEPC extract (26 %) and was at the level of the reference drug 2.3 mg/kg natrii picosulfas (27 %). Conclusions. Experimental studies have confirmed the laxative properties of the PEF and PEPC extracts from Prunus domestica fruts in the model of intestinal peristalsis damage induced by barium chloride in mice. The PEF extract showed laxative activity at a dose of 200 mg/kg (29 %), which was higher than the maximum activity of the PEPC extract observed at a dose of 100 mg/kg (26 %) and was at the level of the reference drug natrii picosulfas at a dose of 2.3 mg/kg (27 %). Thus, the fiber-containing extract was identified as the most active between the two extracts. The dose of 200 mg/kg was determined as conditionally effective. Proved intensive laxative effect of the PEF extract probably related to the presence in its chemical composition of homopolysaccharides (59 %).