Rabdosia serra alleviates dextran sulfate sodium salt-induced colitis in mice through anti-inflammation,regulating Th17/Treg balance,maintaining intestinal barrier integrity,and modulating gut microbiota / 药物分析学报

Rabdosia serra(R.serra),an important component of Chinese herbal tea,has traditionally been used to treat hepatitis,jaundice,cholecystitis,and colitis.However,the chemical composition of R.serra and its effect against colitis remain unclear.In this study,the chemical composition of the water extract of R.serra was analyzed using ultra performance liquid chromatography coupled with a hybrid linear ion trap quadrupole-orbitrap mass spectrometer(UPLC-LTQ-Orbitrap-MS).A total of 46 compounds,comprising ent-kaurane diterpenoids,flavonoids,phenolic acids,and steroids,were identified in the water extract of R.serra,and the extract could significantly alleviate dextran sulfate sodium salt-induced colitis by improving colon length,upregulating anti-inflammatory factors,downregulating proinflammatory fac-tors,and restoring the balance of T helper 17/T regulatory cells.R.serra also preserved intestinal barrier function by increasing the level of tight junction proteins(zonula occludens 1 and occludin)in mouse colonic tissue.In addition,R.serra modulated the gut microbiota composition by increasing bacterial richness and diversity,increasing the abundance of beneficial bacteria(Muribaculaceae,Bacteroides,Lactobacillus,and Prevotellaceae_UCG-O01),and decreasing the abundance of pathogenic bacteria(Turi-cibacter,Eubacterium_fissicatena_group,and Eubacterium_xylanophilum_group).Gut microbiota depletion by antibiotics further confirmed that R.serra alleviated colitis in a microbiota-dependent manner.Overall,our findings provide chemical and biological evidence for the potential application of R.serra in the management of colitis.

Study of the protective mechanisms of Compound Danshen Tablet (Fufang Danshen Pian) against myocardial ischemia/reperfusion injury via the Akt-eNOS signaling pathway in rats.

ETHNOPHARMACOLOGICAL RELEVANCE: Compound Danshen Tablet (CDT), an herbal preparation consisting of Salvia miltiorrhiza (Radix and rhizome of Salvia miltiorrhiza Bge.), Notoginseng (Radix and rhizome of Panax notoginseng (Burk.) F. H. Chen) and Borneolum Syntheticum, is widely used to improve coronary heart disease, cardiac angina and atherosclerosis in clinic in Asia and Pacific Ocean area, especially in China. AIM: The study is to research the protective mechanisms of Compound Danshen Tablet (CDT) against myocardial ischemia/reperfusion (MI/R) injury via the Akt-eNOS signaling Pathway in rats. MATERIALS AND METHODS: Rats were randomized into 7 groups: Sham group; Model group; Low-Dose CDT group (0.315 g/kg/d, i.g); Middle-Dose CDT group (0.63 g/kg/d, i.g); High-Dose CDT group (1.26 g/kg/d, i.g); Compound Danshen Dripping Pills (CDDP) group (0.0945 g/kg/d, i.g); Sulfotanshinone Sodium Injection (Tan II A) group (5 mg/kg/d, i.m). After the administration, the hearts of the rats were subjected to 30 min of coronary artery occlusion and 2h of reperfusion except the Sham group rats. RESULTS: CDT significantly decreased infarct size, apoptosis, caspase-3 protein expression, MDA level in myocardial tissues, the activities of serum CK, LDH and cTnI; on the contrary, it increased p-Akt, p-eNOS, bcl-2 protein expression, the activities of SOD and tissue LDH, and the level of NO. CONCLUSIONS: CDT can protect cardiomyocytes against MI/R injury and inhibits apoptosis in rats by activating Akt-eNOS signaling pathway.

Protective effect of Xiaoyan Lidan Tablet on acute hepatic injury in rats / 中成药

AIM: To study the protective effects of Xiaoyan Lidan Tablet(Herba Andrographis,Herba Rabdosiae serrae,Radix Sophorae Flavescentis,etc) on acute hepatic injury in rats. METHODS: Acute hepatic injury was induced by intraperitoneal(ip) injection of carbon tetrachloride and D-galactosamine,respectively.The levels of ALT,AST,ALP,TBA,total bilirubin(T-Bil),total protein (TP) and albumin(ALB) in serum were analyzed.The body weight,liver weight,spleen weight and thymus weight of each rat were measured.The hepatic glycogen content was analyzed individually.Liver tissue pathology was observed. RESULTS: Xiayan Lidan Tablet can decrease ALT,AST,ALP,TBA and T-Bil in serum,reduce necrosis in pathological observation. CONCLUSION: Xiaoyan Lidan Tablet gives the protective effects to acute hepatic injury induced by CCl_4 and D-Gal in rats.