Effect of-berberine on reperfusion arrhythmias was studied using a 10 rain left anterior descending coronary artery occlusion followed by reperfusion in the isolated rat heart. Berberine, when given 10min before coronary ligation, reduced the incidence of reperfusion arrhythmias in a dose-riependent manner. With 10-5, 3. 16?10-5 and 10-4 mol/L of berberine, ventricular fibrillation was reduced from its control incidence of 100% to 90%, 70% and 40% (P

Objective To investigate the influence of miR-106b on Wnt/β-catenin pathway in HCC cells. Methods QGY-7703 and HepG2 cells were transfected with miRNA mimics or inhibitors. TOP/FOP luciferase ratio assay was used to test the Wnt/β-catenin pathway activity. The expression of downstream targeted genes of Wnt/β-catenin pathway were examined by Real-time PCR. The accumulation of β-catenin in nuclears were measured by Western blotting. Results Ectopic expression of miR-106b dramatically increased the average TOP/FOP ratio and the mRNA expression of downstream targeted genes in QGY-7703 and HepG2 cells. Compared with that in control cells , miR-106b over-expression promoted the nuclear β-catenin accumulation in QGY-7703 cells. Clonclusion MiR-106b activated Wnt/β-catenin pathway in HCC cells.

Isolated perfused rat hearts were subjected to regional ischemia followed by reperfusion and then tested for responsiveness to acetylcholine (Ach) and nitroglycerin (NTG). The effects of L-Arginine (L-Arg) and NG-monomethyl-L-Arg (L-NMMA) on the endothelium-dependent (ED) and independent (EI) vasodilator were also observed. It was found that both 15 and 30min ischemia followed reperfusion resulted in a decrease in ED vasodilation of Ach. ED vasodilation gradually renewed after 90min reperfusion in the 15min ischemic group, not in the 30min ischemic group. No significant decrease in EI vasodilation of NTG in all groups. L-Arg accelerated the renewing of ED vasodilation of Ach in the 15 min ischemia-reperfusion group, not in the 30min ischemia-reperfusion group. L-NMMA was an inverse action. The results indicate that brief ischemia followed by reperfusion can induce coronary endothelium dysfunction which may be related to the decrease of endothelium derived relaxing factor.

Objective To investigate the effects of interferon alpha?2b(IFNα?2b)on serum Hepcidin in hepatitis C patients and its mechanism. Methods Hepatitis C patients were divided evenly into treatment group and control group according to whether they had received treatment with IFNα?2b in the past 3 months. The serum hepci?din was compared between the two groups. HepG2 cells and LO2 cells were treated for 24 hours at varied levels of IFNα?2b(0,50,100,200,400μL)and real?time PCR was used to detect the hepcidin,interleukin?6(IL?6)and signal transduction and transcription activator 3(STAT3)mRNA expression of cells. The protein levels of STAT3 and phosphorylated STAT3(pSTAT3)were measured by Western blot. The changes of these indexes were observed with the gradual increase of IFNα?2b levels. Results Serum Hepcidin level in the treatment group was significantly lower than the control(P<0.05). IFNα?2b inhibited the Hepcidin mRNA in HepG2 cells and LO2 cells. pSTAT3 was significantly decreased with the increased levels of IFNα?2b(P<0.05),and the expression of IL?6 and STAT3 had no significant changes with the increase of IFNα?2b. Conclusion The serum Hepcidin levels can be decreased because IFNα?2b suppresses the expression of Hepcidin,and its mechanism may be related with inhibited STAT3 pathway activation.

Objective Screening the immune polypeptide sequence of toxoplasma (Tg) CDPK5 gene ,which were synthesized and then immunized the New Zealand white rabbit to prepare antiserum ,and identification its function .Methods Bioinformatics a‐nalysis was used to determine the immune peptide of Tg CDPK5 sequence ,which were artificially synthesized to immune white rab‐bit to prepare antiserum .The titers of antibodies were determined by ELISA and the polyclonal antibodies were verified with CD‐KP5 antigen by Western blot .The sub‐cellular localization of Tg CDPK 5 were obtained by immunofluorescence assay .Results 17 bp peptide sequence from the Tg CDPK5 N‐terminal were chosen as immune polypeptide by bioinformatics analysis .Synthetic pep‐tide were used to immune rabbit to obtain polyclonal antiserum .The result showed that the titer of the obtained ployantibody were 1∶640 000 ;Western blot demonstrated that the antiserum could specifically recognize Tg CDPK 5(75 .4 × 103 );Immunofluores‐cence assay revealed this antibody could specifically recognize the endogenous Tg CDPK 5 of Toxoplasma gondii .Conclusion Ac‐cording to the analysis of Tg CDPK5 sequence information ,this study successful obtained Tg CDPK5 polyclonal antibody .

Objective To explore the pathogenesis of steroid-induced osteonecrosis of the femoral head(SONFH)and the mechanism of Traditional Chinese Medicine(TCM)-based prescription for"Bringing Blood Downward"targeting SONFH through the OPG/RANKL/RANK signaling pathway.Methods Fifty male SD rats were randomly divided into model group and control group.The rats in the model group were treated with LPS and methylprednisolone to build a SONFH model.After 6 weeks,two rats were randomly selected respectively from the two groups,and the SONFH model was confirmed by histomorphological examination under light microscopy.The rats in a low,medium and high dose treatment groups(group L,M,and H)were intragastrically administrated with the Prescription for"Bringing Blood Downward"at concentrations of 2.5/5/10 g/kg.While the rats in the model group and control group were intragastrically administrated with normal saline at a concentration of 5 g/(kg·d).The pathological changes and expression levels of OPG,TRAF-6,and RANKL in each group were examined 4 weeks later.Results Compared with the model group,chondrocytes and cell matrix of groups L,M and H were less reduced,osteoclastic absorption and trabecular structure were less destroyed and the cells were less adipose.The adipocyte density in the control group and each treatment group was significantly lower than that in the model group(P<0.01).In the control group,the bone marrow cavity area was smaller than that in the model group(P<0.05),but there was no significant difference between each dose treatment groups and the model group(P>0.05).The expression levels of OPG,RANKL,TRAF-6 and OPG/RANKL ratio in the control group and groups L,M and H were significantly lower than those in the control group(P<0.01).Conclusion The TCM-based prescription for"Bringing Blood Downward"works to treat SONFH byregulating the activity of osteoclasts and osteogenic differen-tiation process of osteoblasts,improving the microcirculation environment of the femoral head,and inducing the formation of trabecular bone through the OPG/RANKL/RANK signaling pathway.It functions with its multitargetsin diverse methods.

The widespread application of next generation sequencing (NGS) in clinical settings has enabled testing, diagnosis, treatment and prevention of genetic diseases. However, many issues have arisen in the meanwhile. One of the most pressing issues is the lack of standards for reporting genetic test results across different service providers. The First Forum on Standards and Specifications for Clinical Genetic Testing was held to address the issue in Shenzhen, China, on October 28, 2017. Participants, including geneticists, clinicians, and representatives of genetic testing service providers, discussed problems of clinical genetic testing services across in China and shared opinions on principles, challenges, and standards for reporting clinical genetic test results. Here we summarize expert opinions presented at the seminar and report the consensus, which will serve as a basis for the development of standards and guidelines for reporting of clinical genetic testing results, in order to promote the standardization and regulation of genetic testing services in China.