1.Meta-analysis of effect of TCM on main biochemical indexes of non-alcoholic fatty liver disease
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(08):-
Objective: To make an impersonal evaluation on the effect of TCM on main biochemical indexes of non-alcoholic fatty liver disease (NAFLD),including ALT,AST,GGT,TC,TG,and HDL-C.Methods: We searched all the randomized controlled trials (RCTs) of TCM for NAFLD from CBM, CNKI,and VIP (1999-2008).RevMan4.2 was used in the analysis. Results: 11 RCTs,including 1078 patients,met the inclusion criteria.All of the trials were not adequate in methodological quality. None of them was double-blinded trial.The result of analysis showed that compared with basic Western medicine,TCM could increase the content of HDL-C,reduce the content of ALT,AST,GGT,TC and TG.Conclusion: The present meta-analysis suggested that TCM was beneficial over Western medicine for NAFLD which indexes including ALT,AST,GGT,TC,TG,and HDL-C.But we can not make a final conclusion due to low quality of RCT.
3.THE EXPRESSION OF INDUCIBLE NITRIC OXIDE SYNTHASE (iNOS) IN THE HYDROPIC COCHLEA OF GUINEA PIGS
Min XIONG ; Jian WANG ; Qinglia HE
Medical Journal of Chinese People's Liberation Army 2001;0(08):-
To investigate the expression of inducible nitric oxide synthase (iNOS) in the hydropic cochlea of guinea pigs, the experiment consisted of two groups: normal control group and experimental group. The hydropic animal model was established by destroying the endolymphatic sac. The expression of iNOS in the hydropic cochlea was examined by immunohistochemistry. The results showed that the expression of iNOS in the hydropic cochlea was positive. The expression of iNOS in the area of stria vascularis and spiral ganglion cells was much stronger. It is suggested that nitric oxide is involved in the pathophysiology of cochlear dysfunction in hydropic cochlea.
4.THE ANTI-OTOTOXIC EFFECT OF IMINOETHYL-LYSINE ON GUINEA PIG'S COCHLEA DAMAGED BY GENTAMI- CIN
Min XIONG ; Qinglian HE ; Jian WANG
Medical Journal of Chinese People's Liberation Army 2001;0(10):-
The object of this study was to investigate the anti-ototoxic effect of iminoethyl-lysine on cochlea of guinea pig damaged by gen-tamicin. The experiment consisted of three groups: normal control group, experimental treatment control group and experimental treatment group. Guinea pigs of the latter two groups were subjected to hypodermic injection of gentamicin, at the same time guinea pigs of the experimental treatment group were treated with intraperitoneal injection of iminoethyl-lysine. while guinea pigs of the experimental control group were treated with the same volume of saline. Guinea pigs of the normal control group were treated with hypodermic and intraperitoneal injection of the same volume of saline as that of the other two groups. The expression of iNOS was examined in the cochleas of all groups by immunohisto-chemistry. ABR hearing threshold shift were examined, and the damage of hair cells of cochleas of all groups was investigated by scanning electronic microscopy. The results showed that iNOS expression was negative in cochleas of the normal control group, and positive in that of other two groups. The expression of iNOS in the experimental control group was much more stronger than that of the experimental treatment group. The ABR threshold shift of the experimental treatment group was much more lower than that of the experimental control group. The damage of cochlea of the experimental control group was much more severe than that of the experimental treatment group. These results suggest that the expression of iNOS is positive in gentamicin-damaged cochleas. Iminoethyl-lysine has significant anti-ototoxic effect on the cochlea damaged by gentamicin, suggesting nitric oxide plays a very important part in the process of the cochlea injury by gentamicin.
5.Effect of peritoneal dialysis fluids on the expression of TLR2 and TLR4 on peritoneal mesothelial cells
Jun WU ; Min HE ; Jian ZHANG ; Wenfei HE ; Bin CHENG ;
Chongqing Medicine 2016;(2):156-158,163
Objective To investigate the effect of glucose-based peritoneal dialysis fluids and icodextrin-based peritoneal dial-ysis fluids on the expression of TLR2 and TLR4 on huamn peritoneal mesothelial cells .Methods Human peritoneal mesothelial cell line 5 - 10 generations(HMrSV5) was cultured in DMEM /F12 medium supplemented with 10% (v/v) fetal calf serum (FCS) .Cell viability and cell proliferation were assessed using M TT method .The experiment were divided into 5 different groups :group A (control group) ,1 .5% dextrose group ,2 .5% dextrose group ,4 .25% dextrose group and 7 .5% Lcodextrin group .Icodextrin group (aikau dextrin) ,TLR2 and TLR4 expression were detected by Western blot .Results Treatment with different concentrations of glucose-based peritoneal dialysis fluids for 24 h did not affect the expression of TLR2 and TLR4 protein .In addition ,after stimula-tion for 48 h ,1 .5% dextrose ,2 .5% dextrose ,4 .25% dextrose decreased TLR2 expression by (5 .5 ± 2 .8)% ,(31 .4 ± 7 .5)% , (54 .9 ± 1 .9)% respectively ,TLR4 expression by (32 .9 ± 17 .6)% ,(47 .7 ± 13 .5)% ,(66 .4 ± 13 .5)% respectively .Stimulation for 72 h ,decreased TLR2 expression by (29 .4 ± 14 .7)% ,(38 .9 ± 9 .9)% ,(63 .5 ± 16 .5)% respectively ,TLR4 expression by(59 .5 ± 16 .8)% ,(63 .1 ± 9 .5)% ,(79 .2 ± 14 .0)% respectively .There was no significant change in TLR2 and TLR4 protein expression on 7 .5% icodextrin group .Conclusion Glucose-based peritoneal dialysis fluids ,but not icodextrin-based peritoneal dialysis fluids downregulates expression of TLR2 and TLR4 by HM rSV5 .
10.Expression of recombinant human granulocyte-macrophage colony-stimulating factor gene in Escherichia coll
Wei XIE ; Chaoyin YUE ; Jian WANG ; Min LIU ; Guangyuan HE
Chinese Journal of Tissue Engineering Research 2008;12(46):9181-9183
BACKGROUND: Human granulocyte-macrophage colony stimulating factor (hGM-CSF) is a kind of cytokine which can stimulate the differentiation and proliferation of haematopoictic precursor cells and plays an important role in the process of immunoloregulation. Escherichia coli (E.coli) expression system has advantages,such as low cost and high output, over other systems.Therefore, E.coli is still the most commonly used exogenous gene expression system.OBJECTIVE: To observe the expression of hGM-CSF in the E.coli swain DH5α.DESIGN, TIME AND SETTING: The present observational experiment was performed at the Central Laboratory of Biotechnology Research,China Three Gorges University between February and June 2007. MATERIALS: Plasmid pBR322hGM-CSF was purchased from American Type Culture Collection, USA.hGM-CSF antibody was sourced from Sigma Company, USA.IPTG, X-gal,and vector pMGT-18 were purchased from Shanghai Bioengineering Technology Company, China. METHODS: Primer was designed according to hGM-CSF gene. Taking cloning vector plasmid pBR322-hGM-CSF as template, hGM-CSF gene was acquired and recombined into prokaryotic expression vector pGEX-4T-1. Recombinant plasmid confirmed by enzyme digestion and sequencing was transformed into E.coli strain DH5α and induced by isopropy-β-D-thiogalactoside (IPTG). Expression product was identified by sodium dodecyl sulfate polyacrylamide gel electropheresis (SDS-PAGE) and detected by Western blotting assay. MAIN OUTCOME MEASURES: hGM-CSF expression in the E.coli strain DH5α. RESULTS: SDS-PAGE results revealed that the recombinant hGM-CSF protein with relative molecular weight of 40 500 was produced up to approximately 17.9% of total protein. Western blotting detection results indicated that there was a 40 500 bp brand. CONCLUSION: The present study reconstructed prokaryotic expression vector pGEX-hGM-CSF, induced its expression in the E.coli strain DH5α, and obtained hGM-CSF fusion protein.