"Evaluation of the effect of Cassia fistula L. extracts on the muscle contraction intensity using an ex vivo model"

Abstract

Cassia fistula L. is a peculiar Fabaceae representative that has long been used in traditional medicine. The purpose of this study is to evaluate the effect of Cassia fistula L. herbal extracts in the form of solutions of a certain concentration on the smooth muscles of the intestine. The design of the experiment involved the identification of raw materials, their drying, grinding, extraction of soluble fractions, purification of aqueous, ethereal (diethyl ether) and ethanol extracts and their testing on the tissues of the ileum of the domestic chicken (Gallus gallus domesticus L.) extracted ex vivo. It was shown that the ethereal, ethanol and aqueous extracts of Cassia fistula L. fruits showed a generally high relaxation activity in comparison with the control relaxation stimulants, leaf extracts showed a more modest relaxation activity, a similar situation was observed during testing of extracts of young shoots, and aqueous extracts showed more modest results, while the alcoholic and ethanol extracts of young shoots performed better than the corresponding leaf extracts, and the most modest results in terms of a dose sufficient for a physiological response were demonstrated by root extracts. The initial assessment of the activity of Cassia fistula L. extracts makes it possible to identify as the most promising for further chemical study the pools of substances concentrated in the ethanol extract of fruits, which exhibit the minimum effective dose, in the ether extracts of fruits and bark, which demonstrate the shortest reaction time, and in aqueous extracts of young shoots and cortex showing the highest percentage increase in activity in comparison with the control.