2 results about "Leonurus cardiaca extract" patented technology

The present application relates to the field of traditional Chinese medicinal materials, in particular to a composition for resisting PRRSv and improving the reproductive performance of sows and application thereof. The present application formulates a composition composed of 10 plant extracts (Angelica sinensis extract, Atractylodes macrocephala Koidz extract, Glycyrrhiza uralensis Fisch extract, Eucommia ulmoides Oliver extract, Eucommia ulmoides leaf extract, Populus davidiana Dode extract, Perilla frutescens leaf extract, Gynostemma pentaphyllum Makino extract, Leonurus japonicus extract and Astragalus membranaceus Bge extract) for sows in late pregnancy, and collects sow blood and placenta samples at the time of delivery, studies the influence of the composition on sow reproduction, and explores the mechanism of action. The experimental results show that the composition can improve the reproductive performance of sows by increasing the total number of piglets and other indicators; meanwhile, the composition can effectively inhibit the replication of PRRSv.

This invention belongs to the field of traditional Chinese medicine and natural product technology, specifically relating to the use of Leonurus japonicus extract in the preparation of antidepressant drugs. This invention uses 70% ethanol extraction to prepare Leonurus japonicus extract. This extraction method reduces extraction costs, shortens production time, increases extract yield, increases the extraction rate of effective components, and increases enterprise production efficiency. This invention also uses multiple depression models to verify the antidepressant activity of Leonurus japonicus extract, including a chronic unpredictable mild stress-induced depression model, a chronic corticosterone injection-induced depression model, and an ovariectomy combined with hormone withdrawal-induced depression model. The results show that Leonurus japonicus extract has a significant antidepressant effect in experimental animals. The antidepressant effect of the Leonurus japonicus extract of this invention is not obvious compared to the characteristics of traditional gynecological drugs, and it focuses on hormone-related depression, demonstrating the therapeutic value of Leonurus japonicus extract in the clinical classification of depression.