ABSTRACT
OBJECTIVE To study the effects of isoliquiritigenin （ISL） regulating gut microbiota and repairing gut barrier function in model mice with non-alcoholic fatty liver disease （NAFLD）， and to clarify its mechanism for improving NAFLD. METHODS Thirty male C57BL/6J mice were randomly divided into the normal （ultrapure water）， model group （ultrapure water）， ISL group （100 mg/kg）， with 10 mice in each group. Model group and ISL group were fed with high-fat diet for 19 weeks to establish NAFLD model； at the same time， the mice were given relevant medicine/ultrapure water intragastrically. The changes of body weight in mice were recorded， and liver index， white fat index and brown fat index were calculated. The pathological changes of liver tissue and colon tissue as well as lipid accumulation were observed in mice. The levels of total cholesterol （TC）， triglyceride （TG）， aspartate aminotransferase （AST） and alanine aminotransferase （ALT） E-mail：xiangshj3@mail.sysu.edu.cn in serum or liver were measured； the serum levels of interleukin-6 （IL-6）， IL-1β and tumor necrosis factor-α （TNF-α） and the levels of IL-6， IL-1β and TNF-α mRNA expression in liver tissue were detected. Fecal samples underwent 16S rDNA sequencing analysis， and the effects of ISL on gut microbiota structure of mice were investigated. The expressions of gut mucosal barrier-related proteins （Claudin-4， Occludin and ZO-1） were determined in the colon tissue of mice. RESULTS Compared with model group， the body weight， liver index， the levels of TC in liver tissue and serum， the levels of AST and ALT in serum， the levels of IL-6， IL-1β and TNF-α in serum， and the mRNA expression of TNF-α in liver tissue were all decreased significantly in ISL group， while brown fat index was increased significantly. The inflammation and damage of liver tissue were significantly improved， and the NAFLD activity score and the proportion of lipid staining area were significantly reduced （P＜0.05）. ISL could significantly up-regulate the relative abundance of beneficial microbiota （norank_f_Muribaculaceae， Odoribacter， Ruminiclostridium， etc.） and the expressions of intestinal barrier function- related proteins， but could significantly down-regulate the relative abundance of harmful bacteria （Desulfovibrio， norank_f_Lachnospiraceae， unclassified_p_Firmicutes）， and could repair intestinal barrier. CONCLUSIONS ISL could significantly delay the progress of NAFLD， the mechanism of which may be associated with regulating gut microbiota and improving gut barrier function.
ABSTRACT
<p><b>OBJECTIVE</b>To establish an in vitro cell model for investigating hepatic steatosis in non-alcoholic fatty liver disease.</p><p><b>METHODS</b>L-02 cells cultured in 1640 containing 10% fetal bovine serum were divided into control group and model group. At 70%-80% confluency, L-02 cells in the model group were exposed to a long-chain mixture of free fatty acids (FFA, oleate and palmitate ) for 24 h, and cells in control group were treated with fresh medium. Lipid droplets in the cells were observed and total lipid content was determined with Oil Red O staining. The morphology of lipid droplets, trilyceride level, malonaldehyde content and cell apoptosis rate were evaluated to verify the cell model, and the effect of Huganqingzhi tablet on the lipid droplets was observed.</p><p><b>RESULTS</b>A large number of lipid droplets were found in the cell model, which showed markedly increased level of triglyceride without significant changes of malonadehyde content or cell apoptosis rate. Intervention with two doses of Huganqingzhi tablet significantly decreased the number of lipid droplets and trilyceride content in the cell model.</p><p><b>CONCLUSION</b>hepatic steatosis L-02 cell model can be established by long-chain mixture of free fatty acids (oleate:spalmitate=2:1) for therapeutic drug studies.</p>
Subject(s)
Humans , Apoptosis , Cell Line , Drugs, Chinese Herbal , Pharmacology , Fatty Acids, Nonesterified , Chemistry , Fatty Liver , Malondialdehyde , Non-alcoholic Fatty Liver Disease , TriglyceridesABSTRACT
Objective:To understand the rules and features of consultation service of outpatients by examining the outpatient consultation in clinical pharmaceutical-care practice.Method:The 1-year clinical charts for outpatient consulta- tion were monitored.The population and disease characteristics of outpatients,consulted problems and resolutions were re- viewed,Result:The counseling patient's median age was 32.And 56.7% of the patients were females.The disease charac- teristics were influenced by the distribution of beth regional diseases and hospital departments.Neither history of adverse drug reactions nor drug quantity of each prescription had any significant influence on the patient consultation behavior.The major problem(72%)concerned about was how to use drugs properly.Conclusion:The general disease information about different ages,genders,periods are indispensable for consultant pharmacists to acquire.More considerate and initiative service for drug uses should be provided for the outpatient counseling.
ABSTRACT
OBJECTIVE: To study the active fractions from Antipyretic analgesics powder.METHODS:The active fractions were extracted from Antipyretic analgesics powder by supercritical-CO2 fluid extraction technique,separated and purified by molecular distillation(MD) technique.The active fractions were selected with the analgesic effect as index.RESULTS: The active fractions obtained showed remarkable analgesic effect.CONCLUSION: The result serves as a theoretic basis for the development of the active fractions-based new drugs.
ABSTRACT
Objective To compare the pharmacological actions of Liandai Tablet(LT) and its main active components on apoptosis of gastric cancer cells and DNA damage. Methods Effects of Liandai Tablet(LT) and its main active components,berberine and indirubin,on growth and apoptosis of gastric cancer cell strain MGC_803 were explored and their effects on DNA damage were also studied. Results LT serum in high and low dosages and berberine could inhibit the growth of MGC_803 as compared with the control group,and typical morphological features of apoptosis were found in the MGC_803 by methyl green pyronin stain assay.But indirubin at various concentrations showed no obvious inhibitory effects. Agarose gel electrophoresis assay revealed that the MGC_803 cell DNA was split into large fragments when treated with berberine. Conclusion LT serum exerts a similar inhibitory effect on the growth and apoptosis of gastric cancer cells as compared with berberine.The effects of LT at various serum concentrations on MGC_803 DNA was less than that of berberine,and indirubin at the given concentration had no this effect.
ABSTRACT
OBJECTIVE: To screen the optimal extraction technique for the blood-lipid lowering effective components in rhizoma alismatis.METHODS: In an orthogonal test, the influence of 4 factors: alcohol concentration, extraction time, extraction frequency, and alcohol dosage, on the extraction was investigated by using the value of ultraviolet absorption of total triterpenes sapogenins in rhizoma alismatis as the investigated index.RESULTS: The optimal extraction technique for blood-lipid lowering effective components in rhizoma alismatis was to extract the medicinal material in 90% alcohol 5 times the amount of the material for 2 times with 2 hours for each time.CONCLUSION: The extraction technique is reasonable and practicable.