Objective To study the effect of finasteride on bleeding associated with suprapubic prostatectomy and transurethral resection of prostate (TURP). Methods CD 34 ,bcl-2,PCNA and VEGF expressions in the prostatic tissues were studied by means of immunohistochemical method in 89 patients undergone prostatectomy,43 of them had taken fenateride and the other 46 did not.Acomparative study of clinical data and immunohistochemical parameters was made between the 2 groups. Results The volume of bleeding and blood transfusion needed were much less in the group treated with fenasteride.The microyascular density as studied by immunohistochemistry was much less in the fenasteride group.The expressions of bcl-2,PCNA and VEGF were also different between the 2 groups ( P

In the present study,50 patients were treated by mesh & plug hernia repair with Bard R Mesh & FerFix R Plug. Operation time ranged from 24 min to 71 min with mean time being 43.2min.There was no need for analgestic.Hospitalization time ranged from 3d to 7d with mean time being 4.5d.The patients were followed up for 6w to 20 months.No recurrence occurred.

Objective To investigate the effect of Gangliosides on brain protection after cerebral ischemia reperfusion injury in rats. Methods The middle cerebral artery (MCA) focal cerebral ischemia /reperfusion rat models were used by thread occlusion method. The cerebral infarct volume, neurologic function deficits and neurons apoptosis in cerebral ischemic region were observed following focal cerebral ischemia 90 min (IR 0 h) and ischemia 90 min / reperfusion 24 h (IR 24 h) by injecting Gangliosides and normal saline intraperitoneally, respectively. Results A significant reduction of infarct volume was found in the Gangliosides-treated group compared with the control group. Furthermore, Gangliosides induced significant amelioration of the number of neuron apoptosis and neurologic dysfunction following focal cerebral ischemia and reperfusion in rats (all P

Objective To investigate the effect of propofol pretreatment on the expression of phosphorylated c-Jun N-terminal kinase (p-JNK), matrix metalloproteinase-9 (MMP-9) and aquaporin-4 (AQP-4) during focal cerebral ischemia-reperfusion (I/R) in rats. Methods Seventy-two healthy male SD rats weighing 250-280 g were randomly divided into 4 groups (n = 18 each): sham operation group (group S), I/R group and propofol pretreatment group (P1 and P2). In group I/R, P1 and P2, focal cerebral I/R was induced by occlusion of middle cerebralartery for 2 h followed by 24 h of reperfusion. In group P1 and P2, intraperitioneal 0.5 % and 1% propofol 10 ml/kg were injected 30 rmin before ischemia respectively. In group I/R, normal saline 10 ml/kg was given instead of propofol 30 min before ischemia. Neurological deficit score (NDS) was assessed after consciousness was recovered. 2% Evans blue (EB) 3 ml/kg was injected intravenously 1 h before the animals were sacrificed at 24 h of reperfusion. The brain tissues were taken for determination of the brain water content, EB content and expression of p-JNK, MMP-9 and AQP-4. Results Compared with group S, the NDS and content of water and EB were significantly increased and the expression of p-JNK, MMP-9 and AQP-4 was up-regulated in group I/R, P1 and P2(P ＜ 0.05). Compared with group I/R, the NDS and content of water and EB were significantly decreased and the expression of p-JNK, MMP-9 and AQP-4 was down-regulated in group P1 and P2 (P ＜ 0.05). Compared with group P1 , the expression of p-JNK and MMP-9 was down-regulated (P ＜ 0.05), but no significant difference was found in the NDS, water and EB content and the expression of AQP-4 in group P2 (P ＞ 0.05). Conclusion Propofol pretreatment can reduce focal cerebral I/R injury by inhibiting the activation of JNK signal pathway and up-regulation of MMP-9 and AQP-4 expression.

Objective To explore the value of hysteroscopy in diagnostic curettage, the incidence of complications and preventive measures in senile women. Methods One hundred and thirteen senile patients who underwent hysteroscopy from January 2002 to December 2007 were recruited in the study, and one hundred and fifty-seven non senile patients were selected as control group. All the patients were operated with diagnostic curettage and hysteroseopy. The success rate of hysteroscopy operation, the incidence of complications and control effect were recorded and compared between two groups. Results The success rate of hysteroscopy operation was 88. 5% (100/113) in the senile group and 100% (157/157) in the non senile group, and there was significant differenee(P <0. 01). The incidence of complications was higher in the senile women group than that in the non senile women group (P< 0. 01). In senile group, the accuracy of diagnostic curettage and hysteroscopy was higher than diagnostic curettage alone, and the success rate was 95.5% (64/67)in estrogen group and 69.6%(32/46) in blank control group (P<0. 01) ,which indicated that estrogen was positively related with the success rate of operation. Compared with misoprostol, estradiol-pretreatment operation was safer and had higher success rate. Conclusions It is safe and feasible to perform hysteroscopy and diagnostic curettage for older women, though it has higher incidence of complications and lower success rate compared with non senile women. Hysteroscopy and diagnostic curettage are more accurate than diagnostic curettage alone, and it is a good choice to apply estradiol before operation.

Objective To identify the imaging performance and differences between type] and type Ⅱ papillary renal cell carcinoma (PRCC).Methods Data of 21 lesions of type Ⅰ,27 lesions of type Ⅱ (1 patient had 2 lesions) in 47 patients was retrospectively analyxed.All patients with pathologically proven PRCC were examined by contrast CT or MRI preoperatively.The morphological features,outside invasion signs and performance on contrast-enhanced CT were compared by qualitative and quantitative studies.The maximum diameter of tumors and CT values,△CT values in corticomedullary and nephrographic phase were analyzed by two-sample t-test,classified variable were compared by the Pearson X2 test or the Fisher exact test.Results On morphological behaviors,type Ⅱ PRCC were significantly larger than type Ⅰ PRCC (t =-2.604,P =0.013),more heterogeneous (X2 =14.928,P =0.000),greater probability to show cystic degeneration or necrosis (X2 =5.598,P =0.018) with more severity (X2 =4.769,P =0.029).There was no significant difference in hemorrhage and calcification between the two types observed by contrast-enhanced CT.Respectively,66.7 ％ of type Ⅱ PRCC and 23.8％ of type Ⅰ PRCC had papillary nodule,with obviously significant difference (X2 =8.694,P =0.003).In outside invasion signs,except for margins,type Ⅱ had more easily invaded peripheral fat,renal sinus and distant metastasis compared with type Ⅰ (P＜0.05).On contrast enhanced CT,there were significant differences in CT values and △CT values in corticomedullary phase between the two types (t =-2.674,P =0.012;t =-3.109,P =0.005).And there were no significant difference in unenhanced and nephrographic phase.Conclusions There were certain difference in morphological features,outside invasion signs and enhancement degree between type Ⅰ and type Ⅱ PRCC,and part of type Ⅱ PRCC had aggressive biological behaviors with worse prognosis.

ObjectiveTo investigate the correlation between PTEN and p27 expression in gastric carcinoma. MethodsImmunohistochemistry was applied to examine the expression of PTEN and p27 in 49 cases of human gastric carcinoma,49 cases of tumor-side ward mucosa and 13 cases of normal gastric mucosa.ResultsPositive expressive rates of PTEN and p27 protein in colorectal carcinoma were 61.22 ％(30/49)and 57.14 ％ (28/49),which were lower than those in tumor-side ward mucosa [91.84 ％(45/49) and 93.88％(46/49)]and normal colorectal mucosa [100 ％(13/13)and 100 ％(13/13)](P＜ 0.05). The expression of PTEN and p27 in gastric carcinoma correlated with each other (r=0.580,P=0.005),and which were associated with degree of differentiation of carcinoma,PTNM stage and lymph node metastasis of the tumors.Conclusion The abnormal expression of PTEN and p27 participate the malignant conversion process of the gastric mucosa cell and the expression levels of PTEN and p27 protein may be used to evaluate the pathologic biology behavior of gastric carcinoma.

Objective To investigate the effect of integrin-linked kinase (ILK) on inducing mesenchymal stem cells (MSCs) to neuron stem-like cell in vitro. Methods MSCs isolated from umbilical cord were transfected with plasmid DNA encoding green fluorescent protein (GFP) and GFP-fusion ILK, wild and mutant, respectively; and cultured in serum-free media with basic fibroblast growth factor, epidermal growth factor and B27. It was assessed with the proliferative activity and the efficiency of differentiation into neural stem-like cell. Results MSCs transfected with GFP-fusion wild ILK expressed ILK and kinase-dead mutant ILK stably. The activity of proliferation increased and more of them differentiated into neural stem-like cell, which express CD133 and Nestin validated by PCR and Western blotting, and more of wild than of mutant. Conclusion Integrin-linked kinase may play a positive role in MSC differentiation into neural stem-like cell, which may associate with the activity of kinase.

Objective To analyze quantitatively intravoxel incoherent motion diffusion weighted imaging (IVIM-DWI)of normal adult kidney and to evaluate the effects of the location of the kidney,gender and age on IVIM-DWI parameters.Methods Thirty healthy adult volunteers were recruited to undergo IVIM-DWI examination.Two radiologists measured the D ,D? and f values of renal parenchyma in both the upper pole,middle part and lower pole of the kidneys separately.Results The D ,D? and f values of the middle part of kidneys in healthy adult were(1.61±0.1 6)×10 -3 mm2/s,(1 7.45 ±3.78)×10 -3 mm2/s and (26.88 ±5.1 9)%, respectively.The D values of right kidney were higher than that of left kidney (P <0.05).The f values of normal kidney in male volunteers were higher than that of female (t = 3.321,P =0.001).The D values of normal kidney in > 50 years group were lower than that of ≤50 years group (t = 3.548,P=0.001).D value of the kidney and age was negatively correlated (r=-0.406).Intraclass correlation coefficient of D,D? and f values between two observers were 0.881,0.56 and 0.741,respectively.The consistency of two observers in measurement of IVIM-DWI parameters in the middle part of kidneys was higher than that of the upper pole and lower pole of the kidneys.Conclusion The IVIM-DWI parameters of adult normal kidneys are influenced by different parts of the kidney,gender and age.

Objective To investigate the MDCT and dual-energy CT (DECT)features of chromophobe renal cell carcinoma (chRCC)and to improve the diagnostic accuracy before operation.Methods The data of MDCT(46 cases of 47 lesions)and DECT (10 cases )of 56 patients with pathologically confirmed 57 chRCC were retrospectively analyzed.All of them underwent plain scan-ning,corticomedullary phase and parenchymal phase scanning after contrast material injection.The lesions were divided into ≤4 cm group and > 4 cm group according to its maximum diameter.Qualitative and quantitative analysis were compared between the groups.Results 64.9% of chRCCs were round and oval,87.7% of chRCCs were solid or mainly solid tumors.The incidence of hemorrhage,necrosis,calcification,cystic degeneration of the tumors was approximately 38.6%,36.8%,10.5% and 12.3%,respec-tively.Central scar(1 7.5%)and vascular sign (24.6% )were seen in part of chRCCs.The tumors showed iso and high attenuation on plain CT scanning in 47.4% and 45.6% of the lesions,respectively.The enhancement pattern of wash-in and wash-out,prolonged enhancement and delayed enhancement were seen in approximately 24.6%,66.7% and 8.8% of the lesions,respectively.The shape, necrosis and cystic degeneration,vascular sign and density uniformity between the two groups were statistically different.The CT value of the lesions were 37.29 HU,82.58 HU and 78.97 HU on unenhanced,corticomedullary phase and parenchymal phase CT scanning.The lesion-kidney ratio on the three phases was 1.29,0.62 and 0.55,respectively.There was no significant difference be-tween CT values and LKR values.The lesions and its subtle signs were much clearer on the 80 kV images of DECT after contrast in-jection.Conclusion The MDCT and DECT findings of chRCC have certain characteristics.However,when the lesions showed atypi-cal CT findings because of its different degree of enhancement and variable enhancement pattern,it would be very difficult to get an accurate diagnosis and the final results depend on pathological diagnosis.