1.Analysis on The risk factors of diabetic nephropathy in elderly type 2 diabetes mellitus
Jian FENG ; Xinggang DONG ; Zhiman YU
Chinese Journal of Postgraduates of Medicine 2010;33(16):21-23
Objective To investigate the correlation risk factors of diabedc nephropathy(DN)in elderly type 2 diabetes mellitus(T2DM).Methods Eighty-six cases of elderly T2DM were divided into two groups,DN group(43 cases)and NDN group(43 cases).Their age,fasting plasma glucose(FPG),2 hour postprandial glucose(2hPG),triglycerides(TG),total cholesterol(TC),high-density lipoprotein cholesterol (HDL-C),low-density lipoprotein cholesterol(LDL-C),hemoglobin A1c(HbA1c),systolic blood pressure (SBP),diastolic blood pressure(DBP)were observed.Results Compared with that in NDN group,2hPG,TG,SBP,HbA1c wag obviously increased in DN group[(14.13±4.46)mmol/L vs(11.19 ±4.22)mmol/L,(1.51±0.79)mmol/L vs(1.20 ±0.53)mmol/L,(141.16±19.08)mm Hg(1 mm Hg=0.133 kPa)vs(132.79 ±17.40)mn Hg,(7.55±2.09)%vs(6.65±2.02)%](P<0.01 or<0.05).Multiple regression analysis showed that the risk factors of DN included 2hPG and TG.Conclusion DN in T2DM is related with 2hPG and TG.
2.Lost sensibility of tyrosine aminotransferase to dexamethasone in human hepatoma cell line SMMC-7721
Yi-Dong LI ; Yu-Jian LIU ; Jian LU ;
Academic Journal of Second Military Medical University 1985;0(06):-
Objective:To investigate the mechanism responsible for lost sensibility of tyrosine aminotransferase(TAT)to dexam- ethasone(Dex)in human hepatoma cell line SMMC-7721 through examining the cDNA sequence of TAT and the status of glucocorticoid receptor(GR)pathway.Methods:The TAT cDNA fragment containing the full length of coding sequence was amplified by reverse transcription-polymerase chain reaction(RT-PCR)and was sequenced.The expression of TAT mRNA was determined by real-time quantitative PCR to observe the influence of Dex on expression of TAT mRNA in SMMC-7721 cells.The experiement with HepG2 cells was performed as the control.Reporter genes(GRE-tk-LUC and GRE-MMTV-CAT)were transiently transfected into SMMC-7721 cells by electroporation.The induction efficiencies of LUC and CAT genes expression by Dex were examined and compared between SMMC-7721 cells and HepG2 cells.Results:The results showed that there was a same-sense mutation(Gln576Gln)in TAT cDNA se- quence.TAT mRNA could be induced by Dex,with the maximal induction level being 2.22-folds in SMMC-7721 cells,which was signifi- cantly lower than that in HepG2 cells(15.1-fold increase,P
5.Modified liver hanging maneuver in the application of hemihepatectomy
Ergang WEN ; Ke DONG ; Xiaojiong YU ; Jian XU ; Wei XIONG
Chinese Journal of General Surgery 2008;23(7):530-533
Objective To evaluate a modified liver hanging maneuver(retrohepatic tunnel of the IVC) in patients undergoing hemihepatectomy.Methods Twenty-four patients undergoing hemihepatectomy were divided into two groups:modified liver hanging maneuver group(n=12)and Pringle's maneuver group(n=12).The amount of intraoperative bleeding,operation time,postoperative liver function,liver function recovery and complications were compared between the two groups.Reset All operation were performed successfully and there were no difference in the time of operation etween the two groups.There was a difierence in the amount of mean intraoperative blood loss between the two groups.It was(160±40)ml in liver hanging group and(560±120)ml in Pringle's group(P<0.01).Liver function recovery measured on postoperative day 3 and day 7 was better in liver hanging groupthan that in Pringle's group(P<0.01).The volume of postoperative peritoneal serous fluid dranage was significantly less in liver hanging group(P<0.01).Conclusion The modified liver hanging maneuver is useful for hemihepatectomy.
6.Clinical efficacy of intermittent androgen suppression treatment of advanced prostate cancer in elderly patients
Chun YANG ; Jun FENG ; Jian DONG ; Deshui YU ; Jun CONG
Chinese Journal of Geriatrics 2014;33(9):980-982
Objective To explore clinical effect and safety of intermittent androgen suppression treatment of advanced prostate cancer in elderly patients.Methods 78 patients with advanced prostate cancer were enrolled,and randomly divided into the observation group and the control group (n=39 each).Patients in observation group were treated with intermittent androgen suppression treatment.Patients in control group were treated with persistent androgen suppression treatment.Results The time of therapy was much longer in observation group than in control group (P< 0.001).Quality of life was better in observation group than in control group (P<0.05).The incidences of adverse reactions including anemia,fever and abnormal liver function were lower in observation group than in control group (all P<0.05).Conclusions Intermittent androgen suppression treatment prolongs time to androgen-independent progression,improve the quality of life,reduce drug dosage and the incidence of adverse reactions in the treatment of advanced prostate cancer in the elderly.
8.The recent advances in the host targets of anti-influenza drugs.
Lin-Lin MA ; Jian-Dong JIANG ; Yu-Huan LI
Acta Pharmaceutica Sinica 2014;49(12):1631-1638
The challenge of the emergence of drug-resistant influenza strains, which is caused by wide spread utilization of direct-acting antivirals (DAAs), accelerates the research and exploration towards host targeted agents. In contrast to DAAs targeting viral replication components, host targeted agents, which regulate host factors and pathways linked to viral replication, can interfere the replication of influenza. Additionally, the innate immune system is activated by influenza during the early stage of infection, so manipulating the innate immune response may prevent the viral infection. However, the excessive inflammatory response induced at the late phase of influenza infection would lead to severe tissue injures. Thus, it is very important to explore drugs with anti-inflammatory actions to suppress these immune imbalances and tissue injures. Here we overview the current progresses about host targets related to anti-influenza drugs.
Anti-Inflammatory Agents
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pharmacology
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Antiviral Agents
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pharmacology
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Humans
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Immunity, Innate
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Influenza, Human
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drug therapy
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Virus Replication
9.Eicosapentaenoic acid inhibits formation of cholesterol gallstone by suppressing gene HMGCR and ABCG5/8 in mice
Xiaoyi ZHAO ; Chengyi SUN ; Chao YU ; Jian SONG ; Dong ZHANG
Chinese Journal of Hepatobiliary Surgery 2016;22(3):193-197
Objective To observe the effect of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) on cholesterol gallstones formation in C57BL/6 mice with diet-induced cholesterol gallstone,and then explore the potential mechanism.Methods Fifty C57BL/6 mice were randomly divided into 5 groups (10 mice in each group),referring to control group,experimental group,experimental plus DHA group,experimental plus EPA group,as well as experimental plus DHA and EPA group.The mice in control group were fed with regular diet,and the rest of the mice with lithogenic diet (LD).Subsequent to feeding the mice with separate diets for two weeks,EPA and/or DHA (70 mg · kg-1 · d-1) were orally administered for eight weeks,while the LD feeding was continued during this period.After a total of 10 weeks,the mice were dissected to observe the gallstone formation.The levels of serum lipids,total cholesterol (TC) and phospholipids (PL) in bile,and TC in the liver were tested,and the protein expression of HMGCR,SRBI,ABCG5/ABCG8,CYP7A1 and ABCB11genes in the liver of mice was measured.Results Compared with the experimental group,the experimental plus EPA group had significantly lower TC in liver (0.033 ±0.008 mmolo/g) and bile (1.807 ±0.381 mmolo/L),and lower relative protein expression levels of HMGCR (0.545±0.098),ABCG5 (0.418±0.089) and ABCG8 (0.501 ±0.151)in liver (P< 0.05).The contents of TC in liver and bile,and the protein expression of HMGCR,ABCG5andABCG8 in liver were 0.048 ± 0.006 mmol/g and 2.662 ± 0.339 mmolo/L,and 1.011 ± 0.213,1.037 ± 0.276 and 1.266 ±0.312,respectively.No significant differences were observed between experimental plus DHA group and experimental group (P > 0.05).Conclusions EPA could prevent the cholesterol gallstone formation in mice by decreasing the expression of HMGCR and ABCG5/8 genes in liver,therefore reducing cholesterol synthesis and blocking cholesterol transport from liver to bile as well as diminishing cholesterol content in the bile.However,the inhibition effect of DHA on cholesterol gallstone formation was not obvious.
10.Transplantation of marrow mesenchymal stem cells through renal artery in repair of acute tubular necrosis in nude mice
Xinggang DONG ; Jian FENG ; Zhiman YU ; Yuan GUO
Academic Journal of Second Military Medical University 1985;0(06):-
Objective:To investigate whether transplantation of mesenchymal stem cells(MSCs)through renal arteries can protect kidney from acute tubular necrosis(ATN),so as to lay a foundation for MSC transplantation in treatment of ATN.Methods:Five-week-old nude mice were randomly divided into three groups:normal control group(n=10),acute tubular necrosis(ATN)model group without(n=10)and with MSCs treatment group(n=11).ATN nude mice were induced with 50% glycerin.MSCs labeled with enhanced green fluorescent proteins(EGFP)were injected into kidney through renal arteries.Serum creatinine was determined in all groups and pathological changes of renal tissues were detected using H-E staining.The amount and distribution of the EGFP-marked MSCs in renal tissues were determined with fluorescence microscope.Results:Degeneration and exfoliation of renal tubular epithelial cells,and even renal tubular tamponade with cast-off cells were observed in the ATN group;these pathological changes were mainly located at renal cortex and juncture of renal cortex and medulla.The damages were greatly alleviated in the ATN+MSCs transplantation group,with no swelling of epithelial cells,nuclear condensation or edema.Fourteen days after MSCs transplantation,EGFP positive cells were increased in renal tubules of recipient mice.Conclusion:The MSCs transplantation via renal artery can locate in renal tubular epithelium,and promote the repair of injured renal tubular epithelial cells.