Role of gut microbiota in the treatment of ulcerative colitis with traditional Chinese medicine / 药学学报

Ulcerative colitis (UC) is a chronic non-specific inflammatory bowel disease, listed as a modern refractory disease by the World Health Organization, which is difficult to recover, whereas it is easy to be attacked repeatedly. UC pathogenesis is closely related to gut microbiota dysbiosis. The gut microbiota interacts with bile acids (BAs), short-chain fatty acids (SCFAs), tryptophan, and other metabolism, immune system, intestinal barrier, etc., which regulate each other and affect the occurrence and development of UC. The active ingredients of traditional Chinese medicine (TCM), single herb and its extracts, and formulae can effectively alleviate UC symptoms by regulating the diversity, structure, composition, and metabolites of gut microbiota. In this review, the TCM based on the regulation of gut microbiota in the treatment of UC and its related mechanism for nearly three years was summarized.

[Research progress on anti-alcoholic gastric injury active components and mechanisms of Chinese herbal medicine].

Alcohol is considered to be one of the main causes for gastric injury, and alcoholic gastric injury has been becoming one of the global health problems, which seriously affects the quality of human life. Many studies suggest that the active components extracted from Chinese herbal medicine can effectively reduce the degree of alcohol-induced gastric injury. The active components and its mechanism of anti-alcoholic gastric injury of Chinese herbal medicine reported in recent five years were preliminarily summarized according to the classification of terpenoids, flavonoids, polyphenols, polysaccharides, volatile oils, phenylpropanoids and alkaloids in this paper. The terpenoids could improve oxidative stress and inflammatory response by regulating relevant signaling pathways. The flavonoids are mainly related to antioxidant and anti-inflammatory properties. The polyphenols mainly regulate the level of relevant factors involved in inflammatory pathway, oxidative stress and apoptosis pathway. The polysaccharides could enhance the ability of gastric mucosal defense factor by inhibiting oxidative stress injury and inflammatory response. Phenylpropanoids could enhance the gastric mucosal defense factor. The volatile oils mainly inhibit H~+/K~+-ATPase activity or inflammatory reaction. Alkaloids are closely related to the inhibition of inflammatory response and the improvement of antioxidant system. This paper aims to provide reference for further research and development of Chinese herbal medicine against alcoholic gastric injury.

Study advance of depressive animal models and its application in traditional Chinese medicines / 中国中药杂志

Depression is a kind of mental disease with main symptoms of low mood and lack of pleasure, which seriously endangers human health. An appropriate depressive animal model is of great significance for the study of depression and new antidepressant drugs, while the suitable selection and matching of experimental animals, modeling methods and evaluation indexes are critical to eva-luate the scientificity and effectiveness of the depressive animal model. The study advance of depressive animal models in the aspects of experimental animal selection, modeling principle and method, characteristics, evaluation indexes and their application in traditional Chinese medicine are summarized through the systematic review of relevant literatures in PubMed, CNKI and other databases. The depressive animal modeling methods utilized in recent studies include stress, glucocorticoid induction, reserpine induction, lipopolysaccharide induction, surgical modeling, gene knockout, joint application modeling methods. Stress method is better to simulate the depressive symptoms of clinical patients, whereas there are some deficiencies, such as long modeling time and large cost. The depressive animal models induced by glucocorticoid, reserpine and lipopolysaccharide have the advantages of short modeling time and good controllability, but with a poor reliability. The pathogenesis of surgical modeling is highly matched with that of clinical depressive patients, whereas it has the defect of long postoperative recovery period. Gene knockout models can be used to study the precise role of specific genes in depression. However, its applicability may be restricted in studies on depression. The joint application modeling method can improve its reliability and accuracy, and attracts more and more attention. This paper provides a reference for the selection of animal models in future studies of pathological mechanism of depression, and screening and evaluation of antidepressant drugs.