AIM: To explore the mechanism of nicotine against the apoptosis induced by colchicines in rat cortical neurons.METHODS: Cortical neurons were cultured from newborn Sprague-Dawley(SD) rats(less than 12 h).The rate of apoptosis was measured by Hoechst33258 fluorescence staining in the neurons,and the activity of Akt473 was analyzed by assay kit Akt473.RESULTS: The apoptosis of cortical neurons can be induced by 0.1 ?mol/L colchicine.The phosphorlation of Akt 473 decreased significantly(1/3 times of the control group,P

B7-H1, a recently described member of the B7 family of costimulatory molecules, is thought to be involved in tumor immune escape by inducing T-cell apoptosis. In order to investigate the relationship between B7-H1 and immune escape of bladder cancer, B7-H1 expression in 50 cases of bladder cancer was detected by using immunohistochemical method. Survival curves were constructed using the Kaplan-Meier method and independent prognostic factors were evaluated using the Cox regression model. Our results showed that the positive rate of B7-H1 immunostaining in normal bladder tissue and bladder cancer was 0 and 72% respectively. The expression of B7-H1 was strongly associated with the pathological grade, clinical stage and recurrence (P<0.05). The survival rate was significantly lower in patients with B7-H1 positive group than in those with B7-H1 negative group and multi-variable analysis revealed that B7-H1 could be regarded as an independent factor in evaluating the prognosis of bladder cancer. It is concluded that the expression of B7-H1 is strongly associated with neoplastic progression and prognosis of bladder cancer. The manipulation of B7-H1 may become a beneficial target for immunotherapy in human bladder cancer.
Antigens, CD/genetics ; Antigens, CD/*metabolism ; Antigens, CD80/genetics ; Antigens, CD80/*metabolism ; Prognosis ; Tumor Escape/*genetics ; Urinary Bladder Neoplasms/*immunology ; Urinary Bladder Neoplasms/metabolism

Objective To explore the clinical pathological data of the elderly patients with paroxysmal supraventricular tachycardia(PSVT) and the timing of the radiofrequency ablation treatment for PSVT and its clinical efficacy.Methods The clinical pathological data of 45 elderly patients with PSVT for radiofrequency ablation were retrospectivly analyzed,and the information of cardiovascular and cerebrovascular diseases,the duration of PSVT and frequency of attacks,the reason of patients had to accept radiofrequency catheter ablation,the treatment effective of electrophysiological study and radiofrequency ablation were recorded.Results The duration and frequency of attacks with PSVT were positively related with pathogenesis in the elderly patients.Elderly PSVT patients with severe cardiovascular disease accounted for 28.89％.The first radiofrequency ablation treatment success rate was 100％ in this research and the recurrence rate was 4.4％.Conclusion It is recommended that elderly PSVT patients early access to the radiofrequency ablation.

Objective To assess the effects of intracoronary tirofiban on preventing no-reflow during emergency percutaneous coronary intervention(PCI).Methods All 99 cases with acute myocardial infarction who underwent emergency PCI between March 2009 and March 2012 were randomized into test group of intracoronary bolus administration of tirofiban (n=50) and group of control (n =49).The clinical characteristics and the result of coronarography were observed.Thrombolysis in myocardial infarction (TIMI) flow grade,and corrected TIMI frame count (cTFC) of the two groups were compared.Incidence of 30 days follow-up major adverse cardiac events(MACE) and major bleeding events were also observed in both groups.Results Compared with control group,tirofiban treated group showed significantly more patients higher TIMI-3 flow (P＜0.05).cTFC was decreased in tirofiban treated group (21.3 ± 6.7) as compared to control group (37.6 +7.2),(P＜0.05).The incidence of no-reflow in tirofiban treated group was lower than in control.The incidence of major bleeding events were the same among two groups,while the incidence of 30 days follow-up MACE in tirofiban treared group (8％) was reduced compared with control group (18.4 ％),(P＜ 0.05).Conclusions Intracoronary tirofiban prior to emergency PCI is safe and effective for the patients with acute STEMI.It might lead to improved TIMI flow and myocardial reperfusion.

Objective To investigate the efficacy and safety of Lipo-prostaglandin E1 (LipoPGE1) in the treatment of non-ST segment elevation acute myocardial infarction (NSTEAMI).Methods A total of 86 patients with NSTEAMI were randomly and equally divided into LipoPGE1 group (n= 43) which received intravenous LipoPGE1 combined with low-molecular-weight heparin,aspirin, clopidogrel and other basic therapy, and the control group (n=43) which received placebo combined with the same therapy. The basic clinical settings, curative effect, main adverse cardiovascular events (MACEs) within 30 days including sudden death, new-onset myocardial infarction and target vessel revascularization, bleeding complications and drug adverse effects were observed. Results There were no significant differences in basic clinical characteristics between the two groups. Compared with control group, the patients in LipoPGE1 group showed. significant improvements of ECG (93.0% vs. 74.4%), angina (95.3% vs. 81.4%, both P＜0. 05), the incidences of left heart failure (2.3% vs. 14.0%) and MACEs within 30 days (4.7% vs.18.6%)(both P＜0.05). There were no serious drug adverse effects. Conclusions The LipoPGE1 combined with heparin, aspirin and clopidogrel is effective and safe in the treatment of NSTEAMI,which could improve the clinical symptoms, distal myocardium perfusion and cardiac function,decrease the incidence of MACEs.

Objective To evaluate and analyze relationship of plasma level of N-terminal probrain natriuretic peptides (NT-proBNP) and serum level of cystatin C (CysC) with cardiac and renal functions in patients with chronic heart failure (CHF) , and explore significance of CysC measurement in early diagnosis for renal damage in patients with CHF. Methods Totally, 162 patients with CHF and 150 normal healthy (controls) undergone routine physical check-up at, Taizhou People's Hospital, Jiangsu were enrolled in the study. Their plasma level of NT-proBNP and serum level of CysC, as well as serum levels of creatinine ( SCr) , urea nitrogen ( BUN) were measured and echocardiography was performed. Glomerular filtration rate (eGFR) was evaluated by modification of diet in renal disease (MDRD) study group formula. Results Compared with the control group, blood levels of NT-proBNP, CysC, SCr, BUN and left ventricular end diastolic diameter ( LVEDD) all elevated, both eGFR and left ventricular ejection fraction ( LVEF) decreased (P <0. 05 or P <0. 01 ) in CHF group, and CHF patients were prone to complicate with renal dysfunction (P<0. 01). Blood levels of NT-proBNP and CysC elevated significantly and LVEF lowered significantly in CHF patients with NYHA functional classes II , III and IV than those in control group. There was significant difference in blood levels of NT-proBNP and CysC between patients with varied NYHA functional classes (P<0. 05). Blood levels of NT-proBNP and CysC reversely correlated with LVEF (r = -0. 36, P < 0. 01 and r = - 0. 39, P < 0. 01) . Blood level of CysC correlated with that of NT-proBNP ( r = 0. 87 , P < 0. 01). Results of logistic regression analysis showed that elevated blood levels of NT-proBNP and CysC were risk factors for mortality during hospitalization in patients with CHF. Conclusions Patients with CHF were more likely to complicate with renal dysfunction than controls, with main manifestations of more severe damaged eGFR, more severe heart failure and more obviously renal damage. Blood levels of NT-proBNP and CysC can be used as indicators for evaluating exacerbation of chronic condition, and serumlevel of CysC can be used as marker for early diagnosing renal damage in patients with CHF.

Objective To evaluate the safety and efficacy of nephron sparing surgery for small renal tumor. Methods A total of 43 patients with small renal tumor underwent nephron sparing surgery (NSS). Of the 43 patients, 27 were male and 16 were female, with an average age of 46.0(21-79)years. The mean diameter of the tumors was 3.1 (1.2- 4. 0)cm. Eighteen cases received open NSS, other 25 cases received retroperitoneal laparoscopic NSS. The perioperative data and renal function, postoperative complications and tumor recurrence were evaluated. Results The procedure was successful in all 43 patients, though 2 cases occurred serious bleeding during operation. The average operating time was 158. 0(69- 277) and 150. 0(60-226) min in open NSS and laparoscopic NSS groups. The average warm ischemia time was 23. 2(20-31) and 25.8(23-35) min. The average blood loss was 590.8(120-3000) and 468. 5(50-1600) ml. The average pre-operation creatinine was (65.9±22. 8)and(68.4±25.0)μmol/L. The average creatinine at the end of follow-up was(82. 2±24.1)and(85. 3±25.9)μmol/L. The average hospital stay was 19.2(11-47) and 12.5(10- 16) (P＜0.05). The histological results showed 25 cases of renal cell carcinoma (RCC, Tla) and 18 cases of benign lesions. Sixteen cases(37%)of minor complications were observed. Comparing the open NSS versus laparoscopic NSS group, perirenal hematoma rate was 6 % vs 12 % (P＜0.05), flank numbness rate was 11.1% vs 0(P＜0.05). During the mean 25-60(37. 4±7.2)months follow-up, 1 case with RCC relapsed in 20 months and received radical nephrectomy. 1 case with harmatoma was found a new lesion apart from the original site in 6 months and CT scan confirmed harmatoma, and then received active surveillance. The 3-year recurrence-free survival for all tumors in 2 groups was 94%, 96%, and that for RCC was 100% and 93%, separately. Conclusions Comparing with open NSS, laparoscopic NSS for small renal tumor has a shorter hospital stay and lower flank numbness rate, though has higher perirenal hematoma rate. There was no significant difference in other complications between the 2 groups. No irreversible renal function damage was observed in two groups. The tumor recurrencefree survival and RCC recurrence-free survival were no significant difference between two groups.

This paper introduces some information of the multi-function hydraulic pressure diagnostic and therapeutic instrument, which is applied to the diagnoses and treatments of oviduct, matrix, urethra, bladder and bile duct, including its system function, operation principle, software and hardware designs. Being reliable, cheap, convenient and multipurpose, the instrument has a bright future in the market.

Objective To study whether prostaglandin E1 (LipoPGE1) could prevent contrast medium-induced nephropathy (CIN) in patients with coronary heart disease (CHD) plus diabetes mellitus type 2 (DM).Methods Total 198 CHD patients with DM received coronary angiography (CAG) or PCI were randomly divided into PGE1 group and control group.All patients received routine treatment,and the PGE1 group also received 20 ml normal saline and 20 μg PGE1 (intravenous injection,1 time/d) for 10 days.The rate of CIN and the level of serum urea nitrogen (BUN),creatinine (Scr),cystatin C (Cys C) were measured before and 48 hours and 5 days after contrastmedium administration.Results The level of Scr,BUN and Cys C were lower in PGE1 group [(113.92±54.89)μmmol/ L,(7.85±4.05)mmol/L,(1.38±0.34)mg/L]for 48 hours and[(86.72±35.26)μmmol/L,(6.61 ± 3.09 ) mmol/L,( 1.29 ± 0.29) mg/L]for 5 days than in control group [(129.22±50.18)μmmol/L,(9.26±3.95)mmol/L,(1.56±0.23)mg/L]for 48 hours and[(109.83+31.76)μmmol/ L,(8.07±3.11)mmol/L,(1.37±0.21)mg/L]for 5 days (all P＜0.05).The dose of contrast-medium was positively correlated with the level of Scr and BUN (r=0.74,P＜0.05 and r =0.82,P＜0.01,respectively).The patients' renal function in the PGE1 group was better than in control group after contrast-medium administration (P ＜0.05).BUN and Scr were positively correlated with the volume of contrast-medium (r=0.74,P＜0.05,r=0.82,P＜0.01).Conclusions PGE1 may prevent contrast medium-induced nephropathy in patients with CHD combined with DM.

B7-H1,a recently described member of the B7 family of costimulatory molecules,is thought to be involved in tumor immune escape by inducing T-cell apoptosis.In order to investigate the relationship between B7-H1 and immune escape of bladder cancer,B7-H1 expression in 50 eases of bladder cancer was detected by using immunohistochemical method.Survival curves were con-structed using the Kaplan-Meier method and independent prognostic factors were evaluated usIng the Cox regression model.Our results showed that the positive rate of B7-H1 immunostaining in normal bladder tissue and bladder cancer was 0 and 72% respectively.The expression of B7-H1 was strongly associated with the pathological grade,clinical stage and recurrence (P<0.05).The survival rate was significantly lower in patients with B7-H1 positive group than in those with B7-H1 negative group and multi-variable analysis revealed that B7-H1 could be regarded as an independent factor in evalu-ating the prognosis of bladder cancer.It is concluded that the expression of B7-H1 is strongly associ-ated with neoplastic progression and prognosis of bladder cancer.The manipulation of B7-H1 may become a beneficial target for immunotherapy in human bladder cancer.