1.The implication of ectopic opening of the pancreaticobiliary duct in the diagnosis and treatment of cholangiopancreatic disease
Chinese Journal of Digestion 2001;0(08):-
Objective To discuss the implication of ectopic opening of the pancreaticobiliary duct in the performance of cholangiopancreatography (ERCP) and the diagnosis and treatment of cholangio-pancreatic disease. Methods We summarize the data of 1000 cases of ERCP in the past four years. Five patients were found with ectopic opening of the pancreaticobiliary duct. The positions, characteristics of ectopic opening and the characteristics of the mucosa disease around the ectopic papilla and cholangio-pancreatic disease were analyzed. Results In the 5 patients with ectopic opening of the papilla, one had the opening in the pyloric channal, two in the duodenal bulb, the other two in the distance of the descending part of duodenum. Mucosa erosion was found in the patients with ectopic opening in the pyloric channal and in the duodenal bulb. Conclusion The ectopic opening of the pancreaticobiliary duct may affect the finding of the papilla, but may not affect the performance of ERCP. The incidence of the cholangiopancreatic disease and the mucosa disease around the ectopic papilla will increase in the patients with ectopic opening.
2.Effect of SIRT1 on the proliferation of ovarian cancer CAOV3 cells and its possible mechanism
Chinese Journal of Biochemical Pharmaceutics 2016;36(6):52-55
Objective To observe the effect of SIRT1 on the proliferation of ovarian cancer CAOV3 cells and its possible mechanism. Methods Ovarian cancer CAOV3 cells were transfected the Lipofectamine 2000 and were divided into normal control group,negative control group and SIRT1-siRNA group.The mRNA and protein expression levels of SIRT1 were detected by RT-PCR and Western blot.MTT method was used to detect the proliferation of RNA interference at 24h,48h and 72h,respectively.The distribution of CAOV3 cell cycle phase after RNA interference of SIRT1 for 72 hours was detected by flow cytometry.SIRT1,p53,p21 protein expression and p53 acetylation status were detected by Western blot with RNA interference of SIRT1 after 72 hours.The interaction between SIRT1 and p53 protein was verified by immunoprecipitation in CAOV3 cells.Results Compared with negative control group,the expression of mRNA and protein of SIRT1 in SIRT1-siRNA group decreased after transfection of SIRT1 for 72 hours.The survival rate of CAOV3 cells in SIRT1-siRNA group decreased significantly at 48 hours and 72 hours (P<0.01).The proportion of Sphase cells in CAOV3 cells transfected with SIRT1-siRNA for 72h was significantly decreased (P<0.01),while the G1 phase cells were significantly increased (P<0.01),and the cells arrested in the G1 phase.The expression of p53 and p21 proteins were significantly increased and the p53 was in higher acetylation status after transfection with SIRT1-siRNA for 72 hours ( P<0.01 ) .SIRT1 was interacted with p53 protein in CAOV3 cells confirmed by co-immunoprecipitation. Conclusion Downregulation of SIRT1 expression can inhibit the proliferation of ovarian cancer CAOV3 cells, which maybe connected with p53 at high acetylation status,and enhancing p53-dependent p21 transcriptional activation,thus blocking the cell cycle and inhibiting the cell proliferation.
3.Effect of bFGF on glucose regulated protein 78 expression and apoptosis in human ovarian cancer CAOV3 cells
Liping YE ; Youfeng WEN ; Ying ZHANG
Chinese Journal of Pathophysiology 1989;0(05):-
AIM:To evaluate the effect of bFGF on the apoptosis and the expression of glucose regulated protein 78(GRP78) in ovarian cancer CAOV3 cells.METHODS:Starvation induced cell apoptosis was conducted.After treatment with bFGF,the cell cycle and apoptosis were determined by FACS analysis and Annexin V/PI staining,respectively.The expression of protein kinase B(PKB) and GRP78 were detected by Western blotting and RT-PCR.RESULTS:Compared to starvation group,the cells treated with bFGF were still viable and increased activation of PKB and high expression of GRP78 were observed,which were prevented by PKB inhibitor wortmannin effectively(P
4.Risk factors for postoperative pancreatitis of diagnostic and therapeutic endoscopic retrograde cholangio- pancreatography
Liping YE ; Guoming XU ; Zhenxing SUN
Chinese Journal of Digestion 1996;0(05):-
Objective To investigate the influence of endoscopic retrograde cholangiography (ERC), endoscopic retrograde pancreatography (ERP), endoscopic retrograde cholangiopancreatography (ERCP), endoscopic sphincterotomy (EST) and endoscopic biliary stenting on postoperative pancreatitis. Methods 412 patients referred to ERCP were divide into 7 groups, there were both biliary and pancreatic ducts group (ERCP), biliary duct contrast filling group (ERC), pancreatic duct contrast filling group (ERP), ERCP plus biliary stenting group (stent), ERC plus stent, ERCP plus EST and stone extraction (SE) group, and ERC plus EST and SE group. And the differences of postoperative serum amylase in 4 hours and in 24 hours as well as clinical symptoms were compared among different groups. Results The incidence of postoperative hyperamylasaemia in 4 hours and 24 hours were 17.7% and 4.4% respectively. The incidence of postoperative acute pancreatitis was 3.9%, and ERP group had the highest incidence of postoperative acute pancreatitis among the 7 groups. Conclusions Repeated pancreatic duct contrast filling during ERCP manipulation is the main risk factor for postoperative pancreatitis, and therapeutic ERCP such as EST, stent and SE does not increase the incidence of postoperative pancreatitis.
5.Localization and mRNA expression of dopamine receptor subtype D_4 and D_5 in human stomach and duodenum
Jun ZHOU ; Liping DUAN ; Simao YE
Chinese Journal of Digestion 2001;0(07):-
Objective To investigate the localization and mRNA expression of dopamine receptor subtype D_4 and D_5 mRNA in human stomach and duodenum by in situ hybridization. Methods The oligonucleotide probe was synthesized and labeled with digoxin, and then hybridized with human gastric and duodenal samples, which were stored in liquid nitrogen, fixed in hypothermia, and embedded in paraffin. The results were recorded and quantitatively analyzed using the pathological image computer analysis system. Results Dopamine receptor subtype D_4 and D_5 mRNA both expressed in human stomach as well as duodenum. They distributed mainly in the interstitial of mucosal glands and the lamina propria near lamina muscularis mucosa. The mRNA expression value of D_4 was higher than that of D_5 in both stomach and duodenum. In stomach, the number of positive target cells was 41.29?5.06 vs. 26.25?5.82 ( P
6.Study on DRG quality evaluation guided by human-centered thinking in patients with radical mastectomy
Ye LU ; Li ZHOU ; Liping YUE
Chinese Journal of Nursing 2009;44(8):688-690
Objective To explore effective methods of nursing quality evaluation. Methods Guided by human-centered thinking,the new DRG quality indicators were formulated based on clinical investigation,literature review and expert consulta-tion. Then,the standards of the new indicators for radical masteetomy were identified by Delphi method and the reliability and validity were tested in 30 patients with radical mastectomy. Results The two new quality indicators were illness observation and health education. The Cronbach'α was 0.82 and 0.88 respectively. The results of expert consultation showed high content validity. Moreover,the new quality indicators got high commend by involved nurses. Conclusion The new quality indicators will lead nursing work to illness observation and health education,which will more benefit to reflect the true work of nurses and improve the internal quality of nursing.
7.Study on application of failure mode and effect analysis in reducing the risk of peripherally inserted central catheter
Liping YE ; Haiying XIA ; Peihong SUN
Chinese Journal of Practical Nursing 2013;(5):40-42
Objective To apply failure mode and effect analysis (FMEA) to reduce nursing risk of peripherally inserted central catheter (PICC).Methods 100 patients with PICC in central hospital of Minxing District of Shanghai were named as the experimental group,failure mode and effect analysis were performed in this group to obtain the value of risk priority number (PRN) and array them according to the RPN value to work out improved plan systematically and put it into practice to guide the clinical operation and nursing care.98 PICC patients in Xinzhuang health service center and Tumor Hospital of Minhang district were set as the control group,which were subjected to traditional nursing.All statistical analysis were done by SPSS 11.0 software package,the differences of the incidence of PICC-related nursing risk between the two groups due to the implementation of FMEA was analyzed by X2 test.Results Application of FMEA could reduce the nursing risk of PICC,After the application of FMEA,the incidence of PICC-related complications such as focal or systemic infection,puncture site oozing and bleeding,skin allergies,mechanical phlebitis,too deeply placed catheter,catheterization into cervical veins and reflexed into axillary vein,catheter occlusion,catheter migration,difficult removal of catheter,puncture failure in the experimental group decreased obviously,the differences had statistical meaning.Conclusions The application of failure mode and effects analysis can reduce the nursing risk of PICC,decrease medical disputes,alleviate the suffering of patients,reduce medical costs caused by PICC-related complications,and improve the satisfaction degree of patients and the quality of nursing care.
8.BRICS AIDS medicines and antiretroviral therapy protection strategy and implications for China
Ye CHEN ; Jing SUN ; Hongyan ZHAO ; Tingting YANG ; Liping MA
Chinese Journal of Health Policy 2016;9(2):45-51
BRICS has been dealing with the problem of increase in the number of the patients who require an-tiretroviral therapy and this therapy’s price-rise by promoting medicine to domestic production and reducing the impor-ted drug price. This paper reviewed the situation of BRICS HIV epidemic and prevention, anti-retroviral therapy drugs production and supply, drug security policy and strategy, and the following seven recommendations are straight forwarded to China based on the BRICS AIDS antiretroviral treatment coverage strategic comparison:(1) The estab-lishment of an ARV drugs co-ordination mechanism;(2) The reduction of the drug patent licenses while increasing the domestic generic drugs possibility;(3)Negotiations with the original research process of domestic pharmaceutical enterprises to obtain a voluntary license or speed up the technology transfer;(4) The use of antitrust laws to promote access to medicines for a voluntary license pharmacy localization; ( 5 ) If necessary, starting the compulsory medi-cines licensing to achieve localization;(6) Reducing the drug prices by bargain and negotiation;and (7) Strengthe-ning NGO built-in capacity.
9.Effect of bFGF on cyclin D1 and GADD153 expression in human ovarian cancer CAOV3 cells
Liping YE ; Youfeng WEN ; Haiqi NIE ; Ying ZHANG
Chinese Journal of Pathophysiology 2000;0(10):-
AIM:To evaluate the effect of basic fibroblast growth factor(bFGF)on the expression of cyclin D1,growth arrest,DNA damage inducible gene 153(GADD153),and its roles involved in cell cycle regulation and DNA repair in starvation-induced ovarian cancer CAOV3 cells apoptosis.METHODS:Apoptosis of ovarian cancer CAOV3 cells was induced by serum-free culture(starvation).After bFGF treatment,the cell proliferation rate,cell cycle and apoptosis were determined by MTT,FACS analysis and agarose electrophoresis,respectively.The expression of c-Fos,c-Jun and cyclin D1,GADD153 were detected by Western blotting.RESULTS:bFGF increased the cell proliferation and prevented starvation-induced cell apoptosis.In a time-dependent manner,bFGF induced the expression of c-Fos,c-Jun and cyclin D1 and inhibited GADD153.CONCLUSION:bFGF plays a critical role in anti-apoptosis and the proliferation in human ovarian cancer by upregulating the expression of c-Fos,c-Jun and cyclin D1 and inhibiting GADD153.
10.Coordinated Regulation of MAPK and STAT3 Proteins on TNF-? Transcription Activity
Liping YANG ; Yongming YAO ; Jieping LI ; Qinong YE ; Zhiyong SHENG
Progress in Biochemistry and Biophysics 2006;0(08):-
In order to investigate if there exists interaction between mitogen-activated protein kinase (MAPK) and signal transducer and activator of transcription 3 (STAT3) protein, and how the interaction regulates tumor necrosis factor-? (TNF-?) transcription activity, the human p38 and extracellular-signal regulated protein kinase 2 (ERK2) genes were amplified from human flag-p38 and flag-ERK2 by polymerase chain reaction (PCR) and cloned into pcDNA3-HA. Protein expression of the plasmids was examined by Western blotting. Co-immunoprecipitation was used to identify if there exists interaction between MAPK and STAT3 proteins. If the interaction was approved to be true, report gene system was applied to find how the interaction affect transcriptional expression of TNF-?. After STAT3 pathway was inhibited by RNA interfering, the action on TNF-? activity was determined. The results of DNA sequencing and enzyme digestion showed that the cloned p38 and ERK2 genes were correct, to be 1 080 bp or so. p38 and ERK2 proteins were expressed in 293T cell to be approximately 40 ku. Co-immunoprecipitation data showed that p38 and ERK2 proteins integrated with STAT3 protein in vivo. TNF-? reporter gene activity results found that protein complex of p38-STAT3 and ERK2-STAT3 coordinately increased TNF-? activity. After STAT3 was interfered, the TNF-? activity markedly decreased. These data indicated that there exists interaction between p38 and STAT3 protein, ERK2 and STAT3 protein. The complex of the proteins can coordinately regulate TNF-? expression. After interfereing STAT3 pathway, the coordinated action on TNF-? transcription activity might be obviously reduced.