1.TNF-alpha upregulate MUC5AC mucin secretion through COX2/PGE2 mechanism.
Chinese Journal of Applied Physiology 2008;24(1):120-I
Cell Line
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Cyclooxygenase 2
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metabolism
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Dinoprostone
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genetics
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metabolism
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Epithelial Cells
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drug effects
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metabolism
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Humans
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Mucin 5AC
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genetics
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secretion
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RNA, Messenger
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genetics
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secretion
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Respiratory System
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cytology
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Tumor Necrosis Factor-alpha
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pharmacology
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Up-Regulation
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drug effects
2.Clinical observation of sitagliptin combined with insulin aspart 30 with in the treatment of secondary failure of sulphonylurea in type 2 diabetes mellitus
Chinese Journal of Postgraduates of Medicine 2016;39(3):258-260
Objective To observe the effect of sitagliptin combined with insulin aspart 30 in the treatment of secondary failure of sulphonylurea in type 2 diabetes mellitus. Methods Fifty-six cases were divided into group A and group B in random block design, with 28 cases of each group. The patients in group A was treated with sitagliptin combined with insulin aspart 30, while the patients in group B was given subcutaneous injection of insulin aspart 30R. All patients were treated for 12 weeks. Fasting plasma glucose(FPG), 2-hour postprandial plasma glucose(2 hPG), glycosylated hemeglobin(HbA1c), insulin secretion index (HOMA-β), body mass index (BMI), and incidence of low blood glucose before and after treatment were compared. Results Compared with that in group B, FPG [(5.61 ± 1.14) mmol/L vs. (7.8 ± 1.22) mmol/L], 2 hPG [(7.62 ± 1.35) mmol/L vs(9.72 ± 1.41) mmol/L] and HbA1c [(7.11 ± 0.83)%vs.(8.32 ± 1.04)%] in group A had a significant decrease;HOMA-β[(50.31 ± 5.12) vs. (41.86 ± 4.53)] of group A was higher than that of group B (P
4.Construction and identification of eukaryotic expression vector expressing Islet-brain 1 gene
Qi SUN ; Ruolan XIANG ; Yuxiu LI ; Heng WANG
Basic & Clinical Medicine 2006;0(07):-
Objective To construct and to identify eukaryotic expression vector expressing Islet-brain 1(IB1) gene.Methods Total RNA was extracted from human insulinoma.IB1 gene was amplified by PCR from human IB1cDNA library.The eukaryotic expression vector encoding IB1 was constructed by inserting the IB1 cDNA into EcoR I/Kpn I sites of the pEGFP-N1 vector with the green fluorescent.The construct was transfected into RINm5F cell line,screened by G418.The phase contrast fluorescence microscope,flow cytometer,and Western blot were used to identify the recombinant plasmid and transfeced cell line.Results The RT-PCR products for IB1(AA1-280)generated from human insulinoma was 840 bp.Sequence analysis proved the same sequence as published in Gen-Bank.Two bands showed that pEGFP-N1 vector encoding IB1 digested by EcoR I or Kpn I.Western blot showed IB1 gene was expressed in RINm5F cells.Conclusion The recombinant prokaryotic expression plasmid pEGFP-N1-IB1 has been successfully constructed.
5.Effect of Different Does of Simvastatin in Reducing Serum Lipid
Zhe QI ; Jilin CHEN ; Li FANG ; Julan XIANG ; Min WANG
Herald of Medicine 2001;(3):152-153
Objective:Comparing the effect of different doses of simvastatin in lowering the serum lipid.Methods:79 patients were randomized into group A and group B,and were given simvastatin 10 mg*d-1 (group A) and 20 mg*d-1 (group B),respectively for a total of 8 weeks.Results:Comparing with baseline,in group A,TC,TG,LDL-C were decreased by 23.4%,20.0% and 30.7%,respectively (P<0.01); HDL-C was increased by 17.5%.The content of serum TC,TG and LDL-C was decreased to the normal range in 12.8%,28.2% and 15.4% of the patients in group A.For the group B,TC,TG,LDL-C were decreased by 32.7%,22.8% and 42.8%,respectively (P<0.01); HDL-C was increased by 13.7%.The content of serum TC,TG and LDL-C was decreased to the normal range in 65.0%,57.5% and 65.0% of the group B patients.Conclusion:Oral intake of 20 mg of simvastatin once a day can effectively reduce the serum lipid.The patients can well tolerate and no obvious side effect was observed in our study.
6.Protective effect of taurine on HK-2 cells exposed to oxalate and calcium oxalate monohydrate crystal in vivo
Chengyang LI ; Jianfeng QI ; Xiang WANG ; Zhiwei TAO ; Yaoliang DENG
Chinese Journal of Urology 2013;(4):263-267
Objective To investigate the protective effect of taurine on HK-2 cells exposed to oxalate (Ox) and calcium oxalate monohydrate crystal (COM) in vivo.Methods HK-2 cells,a proximal tubular epithelial cell line,were cultured.Five groups were divided in this study:control group (only HK-2 cells) ; Ox and COM group (HK-2 cells + Ox + COM) ; Taurine group (HK-2 cells + Ox + COM + Taurine) ; Apocynin group (HK-2 cells + Ox + COM + Apocynin) ; Catalase group (HK-2 cells + Ox + COM +Catalase).After 6 hrs,the cultures medias from each group were tested for LDH,H2O2,8-isoprostane,and MCP-1 protein.Cellular expression of MCP-1 mRNA and P47phox mRNA were determined by reverse transcriptase-polymerase chain reaction.After 24 hrs,cells livability was investigated by MTT.Results Compared with the control,cells livability was reduced when exposed to Ox and COM (P < 0.05),Treatment with Taurine,Apocynin and Catalase significantly increased the cells livability (P < 0.05).Compared with the control,the expression of LDH,H2O2,8-isoprostane,and cellular expression of MCP-1 mRNA and P47phox mRNA were increased following exposure to Ox and COM (P<0.01,P<0.01,P<0.01,P<0.01,P <0.05).Treatment with Taurine,Apocynin and Catalase significantly reduced the expression of LDH,H2O2,8-isoprostane,as well as the cellular expression of MCP-1 mRNA.Expression of P47phox mRNA in Taurine group was not reduced significantly (P > 0.05).Conclusions This study showed that Taurine protected the HK-2 cells from oxidative injury exposed to Ox and COM by the pathway that may not be in relation to the inhibition of P47phox mRNA expression.
7.Clinical application of intraoperative sustained skin and soft-tissue expansion in augmentation mammaplasty using transaxillary approach with endoscopic assistance
Yuzhe CHEN ; Xiang XIE ; Qi QU ; Yajuan XU ; Dong LI
Chinese Journal of Medical Aesthetics and Cosmetology 2012;(6):413-415
Objective To evaluate the results of prosthesis augmentation,relieve suffering patient experience,improve shape and touch of breast.Methods According to design,in dual-plane mammaplasty transaxillary approach with endoscopic assistance,we used soft-tissue expansion before prosthesis,saline volume in expander was the same as prosthesis size at beginning; adjusting expander volume and position,then determined prosthesis size according to expander volume lastly.after intraoperative sustained expansion for 30 to 60 minutes twice prosthes volume,replace expander with prosthesis.Results This method was applied in 120 patients,showing that pain significantly reduced after expansive without use of analgesia pump; complications included that 3 patients appeared seroma and absorbed soon; 2 patients had poor prosthese location,which was adjusted in reoperation; one capsular contracture was repaired later.After 6-months to 2-years follow-up,the results showed that breast was nature and dynamic; satisfactory rate reached to 95 %.Conclusions In augmentation mammaplastic operation,pre-adoption of an expander can make it easy to adjust the location of prosthesis,to avoid being injured and to determine prosthesis volume by expander injection of saline volume,especially for patient with different size of both breasts.
8.Influence of Akt inhibitor MK2206 in proliferation and apoptosis of tongue squamous cell carcinoma TCA-8113 cells and its mechanism
Xiang LI ; Bin ZHANG ; Jing MA ; Qi GAO ; Yi SHI
Journal of Jilin University(Medicine Edition) 2014;(3):616-620
Objective To explore the influence of Akt inhibitor MK2206 in the proliferation and apoptosis of tongue squamous cell carcinoma TCA-8113 cells,and to clarify the possible mechanism.Methods The tongue squamous carcinoma TCA-8113 cells at the logarithmic phase were randomly divided into control group and 1,5,25,125, 250 nmol·L-1 MK2206 groups.The inhibitory rate of proliferation of TCA-8113 cells was detected with MTT method,and the apoptotic rate of TCA-8113 cells was determined with flow cytometry(FCM),and the expressions of caspase-9,Bad,GSK-3β,p-Akt and T-Akt proteins in the TCA-8113 cells were detected with Western blotting method.Results The IC50 of tongue squamous cell carcinoma TCA-8113 cells after treated with MK2206 for 12, 24,and 36 h were (112.54±1.67),(79.67±2.01),and (33.33±1.98)nmol·L-1 .The FCM results showed that the apoptotic rates of TCA-8113 cells after treated with 1,5,25,125,and 250 nmol·L-1 MK2206 for 12 h were (14.2±0.74)%,(19.3±0.45)%,(35.1±0.45)%,(39.6±0.48)% and (52.1±0.19)%;there were significant differences compared with control group(P<0.01).The Western blotting method results showed that the expressions of p-Akt, Bad and GSK-3βwere decreased with the increasing of dose and time of MK2206;compared with theβ-actin in control group,the bands got darken;the expression level of caspase-9 was increased, compared with theβ-actin in control group, the bands got darken;the T-Akt protein expression did not change significantly;compared with the β-actin in control group, the color of bands had no significant difference.Conclusion Akt inhibitor MK2206 can inhibit the proliferation of tongue squamous cell carcinoma TCA-8113 cells and induce apoptosis.
10.A cross-sectional study on the use of parenteral nutrition presciptions in patients with cancer in a tertia-ry hospital
Qi XIANG ; Zhigang LI ; Shuo DING ; Yan CHANG ; Yanru SHI
Chinese Journal of Clinical Nutrition 2017;25(2):99-103
Objective To investigate the application of the parenteral nutrition prescriptions for tumor patients in a tertiary hospital .Methods In this cross-sectional study , the parenteral nutrition prescriptions of all tumor inpatients in a tertiary hospital were collected from May to June in 2015 .The general data of patients who had used parenteral nutrition , the types of parenteral nutrition products , as well as the ratio of energy to ni-rogen ( E/N) , glucose/lipid ( G/L) ratio, non-protein energy to nitrogen ratio , and liquid volume were recor-ded and analyzed .Results Parenteral nutrition prescriptions were collected from 528 patients and showed high irrationality.The nutrient insufficiency rate was nearly 58.3%.The E/N (100:1 ~200:1) accounted for 32.3%and the G/L ( 1:1 ~2:1 ) 20.6%.Conclusions The rational application of parenteral nutrition should be a priority in clinical settings .A clinical nutrition supporting team may be established in tertiary hospi-tals to guide the appropriate use of parenteral nutrition .