1.Regulation of Jagged1 expression by its receptor Notch1 in prostate cancer PC3 cells
Qin NI ; Hefeng YU ; Zesheng WANG
Basic & Clinical Medicine 2006;0(06):-
Objective To investigate the effect of Notch1 and Jagged1 on the growth of prostate cancer PC3 cells and the regulation of Jagged1 expression by its receptor Notch1 in PC3. Methods Notch1 and Jagged1 expression were inhibited by siRNA interference. The growth rate of PC3 cells was measured by MTT. Notch1 expression was inhibited by siRNA interference and promoted by transfection of Notch1 cDNA. The changes of Notch1 and Jagged1 protein and mRNA levels were measured by Western blot and Real-time RCR. Results The growth of PC3 cells decreased after inhibiting Notch1 and Jagged1 expression. Jagged1 protein level decreased after inhibiting Notch1 expression and increased after over-expressing Notch1. Moreover, the change of Jagged1 protein level was discordant with the situation of mRNA. Conclusion In PC3 cells, Notch1 and Jagged1 are important to cell growth. Notch1 may regulate Jagged1 expression.
2.Tyrosine kinase Src mediates Notch-1 activation in BxPC3 pancreatic cancer cells
Xiaoyan YANG ; Yuxiang ZHANG ; Zesheng WANG
Basic & Clinical Medicine 2006;0(09):-
Objective To observe the effect of tyrosine kinase Src on activating Notch-1 protein in pancreatic cancer cell line-BxPC3. Methods Notch-1 expression and c-Src expression were inhibited by siRNA interference, and the activation of Src was inhibited by its inhibitor PP2. The growth rate of BxPC3 cells was measured by MTT. The change of Notch-1 NICD level and Src protein level was measured by Western blot. Results The growth of BxPC3 cells decreased after inhibiting Notch-1 expression, as well as the cells were treated with PP2. The level of Notch-1 NICD decreased both after inhibiting c-Src expression and after Src activation was inhibited by PP2. Conclusion In BxPC3 cells, tyrosine kinase Src promotes the level of Notch-1 NICD, which directly influences the cell growth.
3.Comparison of emergency percutaneous coronary intervention and intravenous thrombolysis with urokinase combined with emergency percutaneous coronary intervention for acute myocardial infarction
Lixian HAN ; Guisong WANG ; Zesheng XU
Chinese Journal of Interventional Cardiology 1996;0(04):-
Objective To evaluate the efficacy and safety of intravenous thrombolysis with urokinase combined with emergency interventional therapy for acute myocardial infarction(AMI). Methods Fifty two patients with first AMI (≤12 h from onset)were randomized to thrombolysis plus PCI group and primary PCI group,the patency rate of infarct related artery (IRA) before intervention,the procedural success rate,the incidence of bleeding complications and acute ischemic events during hospitalization and the left ventricular ejection fraction (LVEF) measured by echocardiography before discharge were compared.Results The IRA patency rate in the thrombolysis plus PCI group (61 5%) was significantly higher than that in the primary PCI group (19 2%) ( P 0 05),no major bleeding complication and acute ischemic event occurred during hospitalization in both groups,the LVEF in the thrombolysis plus PCI group (64 3?5 6)% was higher than that in the primary PCI group(54 8?4 9)% before discharge ( P
4.Regulation of Notch1 activity by Rab5 in pancreatic cancer BxPC3 cells
Juan ZHANG ; Hefen YU ; Zesheng WANG ; Yuxiang ZHANG
Basic & Clinical Medicine 2006;0(07):-
Objective To elucidates the regulation of Notch1 activity by Rab5 which controls endosome fusion.Methods Rab5 expression of BxPC3 cells were inhibited by siRNA interference,the changes of Notch ICD protein were measured by Western blot.We use Wortmannin and LY294002 which inhibit the acticity of Phosphatidylinositol(PI) 3-kinases to investigate Notch ICD protein level.Results After inhibiting Rab5 expression or the activity of Phosphatidylinositol(PI) 3-kinases,Notch ICD protein level and the growth of BxPC3 cells decreased.Conclusion In BxPC3 cells,Rab5 and Phosphatidylinositol(PI) 3-kinases are important to regulate Notch1 activity and the activation of Notch is dependent on endocytosis.
6.Discussion on performance evaluation mode of key discipline construction in medical university
Haiyan LI ; Xuemei SHAO ; Zesheng WANG ; Shusheng GONG
Chinese Journal of Medical Science Research Management 2008;21(4):212-213,216
As the capital WaS invested increasingly to key disciplines,the university regarded the performance.Strengthening the evaluation on performance will help to the development of the disciplines.The omni directional performance evaluation iS a mode of all orientation.which will help the performance evaluation of disciplines go on well.At the same time.it should be paid attention to the design of the evaluation index,and the selection of the persons ioining in the evaluation team and the time of the evaluation.
7.Risk factors for pancreatic fistula after distal pancreatectomy
Gaoqing WANG ; Caide LU ; Weiming YU ; Zesheng WANG ; Yongfei HUA ; Tao PENG
Chinese Journal of General Surgery 2015;30(5):344-347
Objective To find the potential risk factors for pancreatic fistula after distal pancreatectomy.Methods Clinical data of 125 cases of consecutive distal pancreatectomy in Ningbo Lihuili Hospital from January 2006 to June 2013 were retrospectively analyzed.Results In all the 125 patients with distal pancreatectomy,pancreatic fistula was the most common surgical complication (43/125,34.4%),including 27 cases of grade A fistula,16 cases of grade B pancreatic fistula.Multivariate analysis showed that the texture of the pancreas and main pancreatic duct ligation were the independent risk factors for pancreatic fistula (all P < 0.05).Conclusions Pancreatic fistula was the most common surgical complication of distal pancreatectomy.The texture of the pancreas and main pancreatic duct ligation effect the occurrence of postoperative pancreatic fistula.
8.Combined prognostic utility of NT-proBNP and hs-CTNI in NSTE-ACS risk stratification and its therapy
Ya LI ; Tao GENG ; Yongxin LIU ; Bingxun WANG ; Shipeng DAI ; Jiangang ZHANG ; Wanzhong PENG ; Zesheng XU
Chongqing Medicine 2013;(28):3377-3378,3381
Objective To research the combined prognostic utility of NT-proBNP and hs-CTNI in NSTE-ACS risk stratification and early intervention therapy .Methods A total of 245 NSTE-ACS patients were divided to 4 groups(Aa ,Ab ,Ba ,Bb groups) ac-cording to immediate admission NT-proBNP and hs-CTNI .Patients were accepted percutaneous coronary intervention (PCI) ,coro-nary artery bypass grafting and conservative treatment were taken 6 months follow-up .Results The heart failure incidence of Aa group was significantly higher than Ba group(P<0 .05) .6 patients happened left main lesion or multivessel lesion in Aa group were obviously higher than other groups .The incidence of Bb group accepted PCI was obviously higher than Aa group (P<0 .05) .Bb group patients were accepted PCI earlier than other groups ,there was no significance(P>0 .05) .In 6 months follow-up ,5 patients died and 10 patients accepted revascularization again because of severe angina and AMI .Conclusion In NSTE-ACS patient ,NT-proBNP and hs-CTNI elevation was closely related with severe coronary lesions and worse prediction ,which could undergo early in-tervention therapy .
9.An optimal penalty model of anti-medical violence legislation
Chinese Journal of Hospital Administration 2018;34(5):403-407
From the perspective of law-and-economics, this paper analyzed the characteristics between medical workplace and other workplace in terms of public safety liability, risk identifiability and preventability. Then it went on to explore the costs structure incurred by medical violence, namely personal costs of victims, public safety cost, risk prevention cost and service supply cost. A law-and-economics optimal penalty model is then developed based on the benchmark of crime of violence free of social cost, and by incorporating the social cost of medical violence. And it is found that an upward deflection of the crime cost curve sharply drives up the optimal penalty corresponding to various levels of violence, and lowers the threshold violence constituting criminal offence, thus balancing the social costs borne by the public for medical violence.
10.Anti-medical violence legislation: international experience and inspirations for China
Chinese Journal of Hospital Administration 2018;34(5):408-412
Traditional mindset in anti-medical violence legislation tends to divert the responsibility to prevent medical violence to the party of the lowest costs, a design of obvious loopholes in reducing medical violence occurrence. By combining the legal liability and penalty adjustment to counter medical violence crimes, the US, Australia and South Korea are trying to match the private cost of victims and its social cost with the punishment of crime law. In this sense, China should highlight the nature of public safety of medical service, zero tolerance report and optimal punishment to medical violence crimes. This approach can take place of the existing incentive mechanism featuring violent conflicts, being conducive to building a safe and harmonious doctor-patient relationship.