Pharmacological effects of Schisandra Chinensis Fructus polysaccharide on intestinal protection

Schisandra Chinensis Fructus(SCF)is the fruit of Schisandra chinensis(Turcz.)Baill.,a perennial vine.It was first recorded in Shen Nong′s herbal classic and has a long application history.Studies have shown that SCF has anti-inflammatory,protective liver,antioxidant,antibacterial and other pharmacological effects.Ancient prescriptions are commonly used in the treatment of chronic diarrhea and other intestinal diseases and diabetes.Modern clinical pharmacology features of SCF polysaccharide(SCFP)in diabetes,liver diseases,enteritis and other aspects have achieved excellent results.Gut is an important digestive organ of human body,but intestinal diseases are varied,including Crohn′s disease,ulcerative colitis,intestinal flora imbalance,etc..It is a chronic and non-specific inflammatory disease.The disease is persisted for a long time and the incidence rate is expected to rise.Most of the symptoms are recurrent diarrhea,bloody stool and abdominal pain.It is considered by the World Health Organization as a refractory disease.At present,there is little possibility of complete cure,which is closely related to complex environmental factors,eating habits and heredity.In recent years,clinical studies have found that SCFP has a variety of pharmacological effects on intestinal protection.①Reduce inflammatory factors:intestinal mucositis is a common adverse reaction in patients with chemotherapy.The development of mucositis is related to pro-inflammatory factors such as tumor necrosis factor-α(TNF-α),interleukin-6(IL-6),IL^(-1)β,Interferon-γ(IFN-γ).SCFP can significantly reduce IL-6 TNF-α,IL^(-1)β,and IL-8,as well as the accumulation of T cells in the process of resisting apoptosis,reduce the inflammatory reaction and protect the damage to villi and crypts,improve the symptoms of small intestinal mucositis caused by weight loss and diarrhea.②Promote immunoglobulin A secretion:intestinal mucosal immunity is the first line of defense of the body′s immune system.Its main antibody is secretory immunoglobulin A,which can destroy and phagocytize microorganisms,bacteria and viruses.SCFP can improve intestinal immunity by increasing the number and activity of T lymphocytes,promoting the secretion of secretory immunoglobulin A,and affecting the activity of a variety of cytokines.③Regulation of intestinal flora:the flora in the intestine has the functions of auxiliary nutrient absorption,biological antagonism and immune regulation,and can form a natural barrier for the host's intestine.When the human intestinal flora is disordered,probiotics will be greatly reduced,harmful bacteria will proliferate and destroy the intestinal environment.Under these conditions,the intake of SCFP significantly increased the number of beneficial bacteria such as bifidobacteria and lactobacillus,and significantly decreased the number of conditional pathogens such as enterococcus and escherichia coli,indicating that SCFP can indeed regulate the intestinal disorder caused by lincomycin hydrochloride to a certain extent. This may be because beneficial bacteria in the intestine metabolize polysaccharides produce short chain fatty acids such as lactic acid and acetic acid, which reduces the pH value in the intestine and inhibits the growth of enterococcus and Escherichia coli. In conclusion, SCFP can treat and protect intestinal diseases to a certain extent, which provides a favorable basis for the treatment of intestinal diseases.