Objective To explore the mechanism of Bufei Jiedu Granules in the treatment of methicillin-resistant Staphylococcus aureus(MRSA)chronic infection using network pharmacology;To verify it through animal experiments.Methods Active components and potential targets in Bufei Jiedu Granules were screened through the TCMSP database,and genes related to MRSA infection were retrieved through GeneCards,OMIM,DisGeNET,TTD,DrugBank and PharmGKB databases.The STRING database was employed to construct a protein-protein interaction network on common targets,and GO and KEGG pathway enrichment analysis were conducted to identify key signaling pathways for Bufei Jiedu Granules treatment of MRSA infection.The effects of Bufei Jiedu Granules on bacterial load and pathological changes in the lung,liver and kidney of MRSA chronic infection mice models were evaluated through WT and T/B immune cell deficient Rag2-/-mouse animal experiments.The mRNA expressions of inflammatory factors(IFN-γ,IL-10)and immune checkpoints(PD1,TIM3)were detected.Results Totally 54 active components related to Bufei Jiedu Granules were selected,and 50 potential targets related to MRSA infection were identified.118 signaling pathways significantly associated with MRSA infection were identified through GO and KEGG pathway enrichment analysis,in which the JAK-STAT signaling pathway,Th17 cell differentiation,and PD-L1 expression and PD-1 checkpoint pathway were closely related to cell activation and T cell differentiation.Animal experimental results indicated that Bufei Jiedu Granules could effectively reduce the bacterial load in organs and ameliorate the pathological damage in the chronic MRSA infection mouse model,increase the mRNA expression of IFN-γ in the lung tissue,and decrease the mRNA expressions of IL-10,PD1 and TIM3.Conclusion Bufei Jiedu Granules has the characteristics of multi-component and multi-target in the treatment of MRSA infection,and may be involved in adaptive immune activation to effectively treat chronic MRSA infection.

Objective To explore the mechanism of Bufei Jiedu Granules in the treatment of methicillin-resistant Staphylococcus aureus(MRSA)chronic infection using network pharmacology;To verify it through animal experiments.Methods Active components and potential targets in Bufei Jiedu Granules were screened through the TCMSP database,and genes related to MRSA infection were retrieved through GeneCards,OMIM,DisGeNET,TTD,DrugBank and PharmGKB databases.The STRING database was employed to construct a protein-protein interaction network on common targets,and GO and KEGG pathway enrichment analysis were conducted to identify key signaling pathways for Bufei Jiedu Granules treatment of MRSA infection.The effects of Bufei Jiedu Granules on bacterial load and pathological changes in the lung,liver and kidney of MRSA chronic infection mice models were evaluated through WT and T/B immune cell deficient Rag2-/-mouse animal experiments.The mRNA expressions of inflammatory factors(IFN-γ,IL-10)and immune checkpoints(PD1,TIM3)were detected.Results Totally 54 active components related to Bufei Jiedu Granules were selected,and 50 potential targets related to MRSA infection were identified.118 signaling pathways significantly associated with MRSA infection were identified through GO and KEGG pathway enrichment analysis,in which the JAK-STAT signaling pathway,Th17 cell differentiation,and PD-L1 expression and PD-1 checkpoint pathway were closely related to cell activation and T cell differentiation.Animal experimental results indicated that Bufei Jiedu Granules could effectively reduce the bacterial load in organs and ameliorate the pathological damage in the chronic MRSA infection mouse model,increase the mRNA expression of IFN-γ in the lung tissue,and decrease the mRNA expressions of IL-10,PD1 and TIM3.Conclusion Bufei Jiedu Granules has the characteristics of multi-component and multi-target in the treatment of MRSA infection,and may be involved in adaptive immune activation to effectively treat chronic MRSA infection.

Objective:To systematically analyze the clinical features of severe fever with thrombocytopenia syndrome (SFTS) and to provide evidence for the prevention and treatment of SFTS.Methods:Relevant studies of SFTS from six databases, including China National Knowledge Infrastructure, Wanfang Database, Chongqing VIP, PubMed, Cochrane Library and Embase from January 2009 to May 2019 were systematically searched and identified. The literatures were screened and the data of patients′ epidemiology, clinical manifestations, laboratory examinations and prognosis were obtained. Revman 5.2 software was used for meta analysis.Results:Sixty-eight Chinese literatures and fourteen English literatures encompassing 6 780 patients with SFTS were included in the final analysis. Of these patients, 845 cases (12.46%) died. SFTS mostly occurred in mountainous and hilly areas, and farmers (3 637 cases) were the usual victims. The onset season was mostly in summer and the peak was from May to August each year. There were 1 434 patients had a clear history of tick bites, and 21 cases were human-to-human transmitted.There were 6 071 cases (89.54%) presented with fever, 5 407 cases (79.75%) presented with fatigue, 3 140 cases (46.31%) presented with muscle soreness, and 2 300 cases (33.92%) presented with chills.Using random effects model for meta analysis, the levels of creatine kinase (CK) (mean difference ( MD)=500.40, 95% confidence interval ( CI) 380.51-620.28, P<0.01) and lactic acid dehydrogenase (LDH)( MD=442.81, 95% CI 152.85-732.78, P=0.003) in severe patients were both higher than those in mild patients, and the difference were both statistically significant. The risk of death increased in patients aged>60 years( MD=8.19, 95% CI 4.03-12.36, P<0.01). The levels of CK( MD=530.92, 95% CI 29.27-1 032.56, P=0.040), LDH( MD=609.28, 95% CI 80.25-1 138.31, P=0.020), urea nitrogen ( MD=4.67, 95% CI 3.05-6.30, P<0.01) and creatinine ( MD=43.05, 95% CI 23.49-62.62, P<0.01) of patients in the death group were all higher than those in the survival group. The differences were all statistically significant. Conclusions:During the course of SFTS, the patients may show impaired blood system, heart, liver and kidney functions with high mortality. Clinicians should timely monitor the changes of blood routine, myocardial enzyme spectrum, liver and kidney functions and other indicators, so as to find cardiovascular and other system complications as early as possible. Timely treatment could not only reduce liver, heart and other organ injuries, but also reduce mortality.

BACKGROUND: Eggembryosin is characterized by tonifying kidney and vital essence, invigorating qi and spleen, replenishing and activating blood, beautifying and nourishing face, and improving constitution of whole organism.OBJECTIVE: To observe the influence of eggembryosin on aging index,quantity of hemocytes and quality of immune organs of animal models, and analyze its effect on cosmetology, anti-senility and immunoloregulation.DESIGN: Randomized controlled observation.SETTING: Department of Pharmacology, Xinxiang Medical College.MATERIALS: The experiment was carried out in the Department of Pharmacology of Xinxiang Medical College between April 1998 and September 2002. A total of 80 Kunming mice of both sexes were selected in this study.METHODS: ① Effect of eggembryosin on activity of superoxide dismutase (SOD) in serum, content of malondialdehyde (MDA), lipofuscin and hydroxyproline respectively in serum, liver and tendon of tail of aging mice: Thirty mice were divided into 3 groups according to randomly lined table, including eggembryosin group, D-galactose model group and normal control group with 10 in each group. The former two groups were injected with D-galactose to copy aging models, and eggembryosin group were perfused with eggembryosin to measure activity of SOD in serum, content of MDA, lipofuscin (aging index) and hydroxyproline (elasric index of skin) respectively in serum, liver and tendon of tail. ② Effect of eggembryosin on mass of immune organs of mice with low immunological function: Thirty mice were selected and divided as the same way mentioned above. Mice in eggembryosin group were perfused with eggembryosin. In addition, those in eggembryosin group and cyclophosphamide (CAP) group were peritoneally injected with CAP to copy immunosuppression models and calculate index of thymus (spleen) (mg/g) = weight of thymus (spleen)/body. ③ Effect of eggembryosin on quantities of erythrocytes and hemoglobin of mice with blood deficiency: Twenty mice were divided into 2 groups according to randomly lined table, including eggembryosin group and normal control group with 10 in each group. Values of erythrocytes and hemoglobins of mice were measured before administration. Models in types of blood-deficiency blood-loss were copied with tail xsanguinations, and then, mice were perfused with eggembryosin and saline, respectively. Blood of mice were collected from their tails to measure values of erythrocytes and hemoglobin.MAIN OUTCOME MEASURES: Activity of superoxide dismutase (SOD) in serum, content of malondialdehyde (MDA), lipofuscin and hydroxyproline respectively in serum, liver and tendon of tail of aging mice, index of thymus, and spleen, contents of blood erythrocytes and hemoglobins.RESULTS: A total of 80 mice were involved in the final analysis without any loss. ① Activity of SOD in serum and contents of hydroxyproline in tendon of tail of mice in eggembryosin group were significantly higher than those of mice in D-galactose model group (P ＜ 0.01); content of MDA in serum and content of lipofuscin in liver of mice in eggembryosin group were significantly lower than those of mice in D-galactose model group (P＜ 0.01). ② Indexes of thymus and spleen of mice in eggembryosin group were higher than those of mice in CAP group (P ＜ 0.05-0.01). ③ Increasing values of blood erythrocytes and hemoglobin of mice in eggembryosin group were significantly higher than those of mice in normal control group (P ＜ 0.01).CONCLUSION: Eggembryosin taken orally can improveanti-oxidation of organism and elasticity of skin, increase quality of immune organs damaged by CAP and immunological function, and nourish the blood.

BACKGROUND:Huperzine A is a reversible choline enzyme(CHE) inhibitor initially developed in China,which has favorable therapeutic effectiveness in benign memory dysfunction,and could significantly promote the learning process and memory reappearance in rodent animals. OBJECTIVE:To comprehend the impacts of Huperzine A on the enhancement of learning, memory and behavior in platform and maze experiments in D Galoctose(Gal) induced senile mouse model. DESIGN:A randomized and controlled trial. SETTING:Institute of Pharmaceuticals of Xinxiang Medical College. MATERIALS:Study was performed in the Laboratory of Physiology and the Institute of Pharmaceuticals of Xinxiang Medical College from January to December in 2002.A total of 100 healthy Kunming mice were selected for platform and electric maze experiments with 50 mice in each experiment.Huperzine A tablet was obtained from Henan Zhulin Zhongsheng Pharmaceutical Company Limited(batch number:031001).D Gal is the product of Shanghai No.2 Reagent Factory. MAIN OUTCOME MEASURES:The latency in the safe area on the platform and the times of electric shock occurred within 5 minutes were observed in mice in platform experiment;the times of the mice mistakenly escaping to the right electric attacking area were observed in mice in electric maze experiment. CONCLUSION:Huperzine A can effectively improve the learning and memory ability of D Gal induced senile mice, and there is dose effect relationship within certain range. Qiu PY,Chen ZY,Wang YX,Zhang JX,Wu ZZ.Effects of Huperzine A on the memory and behavior in D galactose induced senile mice.Zhongguo Linchuang Kangfu 2005;9(4):247- 9(China) [www.zglckf.com]