Objective To assess the efficacy and safety of transurethral bipolar electrocautery resection of the superficial bladder tumor(Bipolar-TURBt).Methods 26 patients with superficial transitional cell carcinoma(13 with tumors appear at the lateral wall) were treated by bipolar TURBt. All patients were followed-up in 1～6 months postoperatively.Results The duration of the procedure was(19?10) min(8～35 min) with little bleeding. Bladder perforation was occurred in no case. No TUR-syndrom was found. The adductor reflex was not found even in the 13 cases with tumor located at the lateral wall.Conclusion Transurethral bipolar electrocautery resection of the superficial bladder tumor is effective and safe.

Objective To study the pathogenesis, diagnosis and treatment of Crohn disease of urinary bladder. Methods 4 cases of Crohn diseases of urinary bladder treated were reviewed. Results 2 cases manifestated clinically as acute appendicitis,resultig in enterovesical fistulas formation in 1.Granulomatous pseudotumors were observed on cystoscopy in 3.The diagnosis was missed preoperatively in all the 4,being finally acertained on pathological studies. Conclusions In case of an ileovesical fistulas of unknown cause or the finding of papollomatous mucosal hyperplasia and bullous edema on cystoscopy,Crohn disease of the bladder should be thought of.Resection of the involved bladder wall will be necessary.

Objective To assess the efficacy and safety of transurethral resection of the prostate(PKRP) and bladder tumor(PKRBT) with plasmakinetic energy. Methods 300 patients(mean age of 71.6 years;range from 52 to 91) with symptomatic BPH without suspected cancer (confirmed by IPSS,urinary flow rate,ultrasonographic estimate and PSA tests) were treated by PKRP. 37 patients with superficial transitional cell carcinoma (17 with tumors appearing at the lateral wall) were treated by PKRBT.All patients were followed up for 1～6 months postoperatively. Results For PKRP,the duration of the procedure was (48?31) min(range 13 to 98 min).No case need blood transfusion during the operation.No transurethral resection syndrom occurred.The mean catheterization time was 2 days (1 to 4 days). The peak flow rate increased from (5.2?3.9) to (19.2?4.1),(21.8?4.6),(22.3?5.7)ml/s at 1,3 and 6 months respectively. The IPSS decreased from 24.7 to 5.7, 5.4,5.0 and the QOL decreased from 5.3 to 1.7,1.8,1.2 at 1,3 and 6 months respectively.For PKRBT,the duration of the procedure was (24?13) min(range 5 to 39 min) with little bleeding.The adductor reflex was found in 5 of the 17 cases with tumor located at the lateral wall. Conclusions It is suggested that transurethral bipolar plasmakinetic resection of the prostate and bladder tumor is effective and safe. This pilot series permits a comparative study with conventional TUR system.

Objective Blocking the expression of Survivin with siRNA, and the effects of suppling the proliferation of PC-2 cell and inducing its apoptosis were investigated. Methods Constructed the siRNA against Survivin plasmid expression vector and transfected it into PC-2 cell with lipofectamineTM 2000, the changes of Survivin expression were detected by semi-quantitive RT-PCR and immunohistochemical method, The effect of suppressing the proliferation of PC-2 cell was detected by the method of MTT; the effect of inducing PC-2 cell apoptosis was detected by flow cytometry. Results The sequence specific siRNA can effectively block the expression of Survivin both at themRNA and protein levels, the expression inhibition ratio was 81.25% at mRNA level and 74. 24% at protein level;blocking the expression of Survivin can suppress the proliferation of PC-2 cell significantly, 24, 48 hours after the cell was reseeded, the proliferation inhibition ratio was 28. 00% and 33. 38% respectively; 24, 48 hours after the transfection, 8.46 % and 7.53 % cells were induced to apoptosis respectively. Conclusion The siRNA against Survivin plasmid expression vector constructed in the study can blocking the expression of Survivin in PC-2 cell effectively and specifically; blocking the expression of Survivin can signiilcantly suppress the proliferation of PC-2 cell and induce a certain degree cells apoptosis; RNAi against Survivin is of a certain value in the gene therapy of pancreatic cancer.

This study was aimed to investigate the influence of coital frequency and masturbation on erectile dysfunction (ED) in Chinese patients. A total of 332 male outpatients with or without ED and volunteers were recruited from Zhongnan Hospital, Wuhan University, China. ED was assessed by using the five-item International Index of Erectile Function scale and the frequency of intercourse by patients' self-report. After adjusting for lifestyle factors and diseases-related factors, the analyses showed that coital and masturbation in a certain frequency tended to decrease the risk of ED. Men reporting intercourse once a week had lower risk of ED than those did less than once a week, with age, hyperlipidemia, hypertension, diabetes, body mass index, smoking, and drinking as covariates (P=0.67, adjusted odds ratio [OR] = 0.84; 95% confidence interval [CI]: 0.37-1.88). For those reporting coital frequency two times per week and three or more times per week, there were 63% (adjusted OR = 0.37; 95% CI: 0.18-0.77) and 85% (adjusted OR = 0.15; 95% CI: 0.07-0.35) lower risk of ED than those reporting intercourse frequency less than once per week, respectively (P<0.05). Results indicated that maintaining a regular frequency of intercourse can reduce the risk of ED for males aged among 30 to 75 years.

Objective To study CYP11B2 mRNA and aldosterone secretion alteration in human adrenocortical carcinoma H295R cell after angiotensin Ⅱ (AT-Ⅱ) and potassium chloride stimulation,and to investigate the effect of adrenocorticotropic hormone receptor (ACTHR) on them.Methods Lentiviral vector was used to increase ACTHR expression.It was transfected into the H295R cells.Similarly,another H295R cells,without ACTHR vector,was used as the control group.ACTHR alteration was measured by Western blot and real-time polymerase chain reaction (RT-PCR).CYP11B2 mRNA was detected at 24 hours after 100 nmol/L AT-Ⅱ/16 mmol/L KCL stimulation,and the amplification of the two groups was compared.Aldosterone was measured by ELISA kit.Results Compared with those in control ceils,the protein and mRNA level of ACTHR in experimental cells were increased 2.4 times and 18 times respectively (P＜0.05).CYP11B2 mRNA of experimental cells was 1.7 times higher than control cells after 24 h stimulation of AT-Ⅱ.Aldosterone production was 121.98+8.31 and 104.05+6.88 ng/L respectively.The former amplification was 2.06 times higher than that of the latter (P＜0.05).Similarly,CYP11B2 mRNA of experimental cells was 19.2 times higher than control cells after 24 h stimulation of KCL.Aldosterone production was 137.67±10.35 and 104.05 ± 6.88 ng/L respectively.The former amplification was 3.13 times higher than that of the latter (P＜0.05).Conclusion Overexpression of ACTHR increases the sensitivity and response of CYP11B2 mRNA and aldosterone to AT-Ⅱ and KCL stimulation,and ACTHR is expected to become a key protein in understanding primary aldosteronism.

Objective We studied the expression of VEGF and its receptor,FLK－ 1,in neuroblastoma and its relation to clinical features.Methods With the help of antigen repairing,immunohistochemical analysis using antibody against VEGF,FLK－ 1 was carried out on speciments of 52 cases of neuroblastoma.Results There were 36 cases of VEGF and 34 cases of FLK－ 1 positive expression,the expression of them were nearly consistent.The positive rate of VEGF and FLK－ 1 were higher in metastatic tumors(28/34,26/34)than in non－ metastastic tumors and had statistical significance(respectively P<0.01,P<0.05).The expression of VEGF in UH tumors was higher than in FH tumors,and statistical value is significant(P<0.05).Conclusion VEGF is a vital angiogenic factor,and may play an improtant role in the progression and metastasis of neuroblastoma.Its expression and function correlates well to FLK－ 1,and may aid in predicting patients at risk of metastasis.

0.05).But the cell purity and the survival rate by mechanical procedure were significantly higher than that by combination of enzymatic digestion(P

This study was aimed to investigate the influence of coital frequency and masturbation on erectile dysfunction (ED) in Chinese patients. A total of 332 male outpatients with or without ED and volunteers were recruited from Zhongnan Hospital, Wuhan University, China. ED was assessed by using the five-item International Index of Erectile Function scale and the frequency of intercourse by patients' self-report. After adjusting for lifestyle factors and diseases-related factors, the analyses showed that coital and masturbation in a certain frequency tended to decrease the risk of ED. Men reporting intercourse once a week had lower risk of ED than those did less than once a week, with age, hyperlipidemia, hypertension, diabetes, body mass index, smoking, and drinking as covariates (P=0.67, adjusted odds ratio [OR] = 0.84; 95% confidence interval [CI]: 0.37-1.88). For those reporting coital frequency two times per week and three or more times per week, there were 63% (adjusted OR = 0.37; 95% CI: 0.18-0.77) and 85% (adjusted OR = 0.15; 95% CI: 0.07-0.35) lower risk of ED than those reporting intercourse frequency less than once per week, respectively (P<0.05). Results indicated that maintaining a regular frequency of intercourse can reduce the risk of ED for males aged among 30 to 75 years.
Adult ; Age Distribution ; Aged ; China ; epidemiology ; Coitus ; Cross-Sectional Studies ; Erectile Dysfunction ; epidemiology ; prevention & control ; Humans ; Male ; Middle Aged ; Prevalence ; Risk Assessment ; Sexual Behavior ; statistics & numerical data

Objective To investigate the serum prostate specific antigen tPSA),ratio of serum free PSA to total PSA (f/t),prostate volume (PV) and prostate specific antigen density (PSAD),their correlation with prostatic intraepithelial neoplasia (PIN) and their clinical diagnostic significance. Methods Retrospectively evaluate 165 cases of patients with PIN ( including 31 cases of LGPIN,134 cases of HGPIN),which confirmed by pathology,and 252 cases of benign prostatic hyperplasia (BPH),49 patients with prostate cancer (PCa),both diagnosed by pathology,as control.The average age of BPH,LGPIN,HGPIN,PCa groups were 70.13 ± 0.43,70.97 ± 1.28,70.74 ± 0.64,70.37 ± 1.40,the International Prostate Symptom Score (IPSS) were 20.20 ± 0.88,14.71 ± 3.42,20.19 ± 1.239,19.27 ± 2.73,and the PV were 58.07 ± 3.58,56.01 ± 7.52,60.74 ± 4.81,47.56 ± 6.54,respectively.The data of PSA,f/t,PV and PSAD were analyzed and compared within the four groups. Results Age,IPSS score and PV had no significant difference among the four groups (P ＞ 0.05).The PSA level of BPH,LGPIN,HGPIN,PCa groups were 5.65 ±0.38,5.86 ±0.81,8.91 ±0.71,13.80 ±1.83,the f/t ratio were 0.26 ±0.01,0.24 ±0.02,0.22 ±0.01,0.167 ± 0.01,and the PSAD level were 0.11 ± 0.01,0.10 ± 0.02,0.19 ±0.03,0.48 ±0.12,respectively.PSA,f/t and PSAD were not significantly different between HGPIN and LGPIN ( P ＞ 0.05 ),and likewise between LGPIN and BPH patients ( P ＞ 0.05 ).PSA,f/t and PSAD were significantly different between LGPIN and PCa patients ( P ＜ 0.05),and likewise between HGPIN and BPH patients (P ＜ 0.05 ).PSA and PSAD were significantly different between HGPIN and PCa (P ＜ 0.05 ).The areas under the ROC curve of PSA and PSAD of HGPIN were 0.6281 (P ＜0.01 ) and 0.5919 (P ＜0.05).Conclusions PSA and PSAD are correlated with HGP1N and can predict the existence of HGPIN early;PSAD can identify HGPIN and PCa,when PSA and f/t are normal.The clinical features of LGPIN are similar to BPH,and HGPIN is easy to develop to PCa.