Objective To study the volume of total prostate and the volume of its transitional zone in different age groups of elderly men. Methods 213 elderly men of 50 to 79 years of age from a community of Beijing city were divided into 3 groups and studied. The volume of total prostate and the volume of the transitional zone were measured by rectal ultrasonography and the index of the transitional zone was calculated. All the data were evaluated with statistical analysis. Results The number of subjects in the 50～59 age group was 75,in the 60～69 age group 81 and in the 70～79 age group 57.The volume of total prostate was 23.82?8.83,29.16?10.01 and 33.77?11.74 respectively and the transitional zone 1.52?1.19, 3.60?3.66 and 7.25?7.02ml respectively. The index of transitional was 0.10?0.12, 0.13?0.11, 0.20?0.11 respectively. The difference in volume of the total prostate has not been statistically significant whereas the difference in the volume of the transitional zone between the 3 age groups has been significant. Conclusions The volume of total prostate and that of the transitional zone increases with age. The speed of hyperplasia of the transitional zone has been faster than that of the whole prostate.The index of the transitional zone indicates the difference of the whole prostate and the transitional zone in hyperplasia.

Objective To study the prostate volume,prostate weight and the clinical parameters in BPH patients and to investigate the interrelationships between the relevant parameters. Methods The complete data of 80 cases of BPH underwent open surgery were reviewed and analyzed.SPSS software was uesd to make the statistical analysis. Results The volume of surgical specimen has been positively correlated with PV( r=0.872,P

Objective:To study TGC on tumor apopotosis and to apply the experimenting basis of TGC's developing and utilizing.Methods:The flow cytometer(FCM) was used for determination apoptosis.The protein expression of Bcl-2 and the mRNA expression of c-myc were evaluated by immunohistochemistry and in situ hybridization.Apoptosis small body were observed by EU.Results:The TGC group appear the Ap apex,the number of cell of G0-G1 period reduce obviously,the cells of S period increase obviously.Bcl-2 and the c-myc mRNA expression levels were decreased in TGC group.The structure of inner membrane was intacted with EU.Chromatin gathered side of cell,the nucleus turns into the nucleus band and nucleus project,there were many cells of the apoptosis and meniscus or the garland shape(the apoptosis corpuscle formatiol) in TGC group.Conclusion:The total glucosides of radix paeoniae induces the tumor cell apoptosising,its mechanism maybe closely related with adjusting expression levels of the Bcl-2 and the c-myc mRNA.

Objectives To review our initial experience with the Ho:YAG laser in treating superficial bladder tumors.Methods Ho:YAG laser was applied for treating 52 cases of bladder tumors which were confirmed by cystoscopy and pathology with totally 87 tumors.All tumors were in stage Ta～T 2 and tumors grade G1～G2.The optical fiber was put into bladder through cystoscopy.Ho:YAG laser was used endoscpically to cut and vaporize bladder tumor and normal bladder mucosa near the tumor.Results Nine of 52 patients were performed under local anesthesia in outpatient.Operation time was apparently short (mean 25 minutes) Histopathology of biopsies showed no cancer cells left.There were no intraoperative complication such as bleeding,perforation and delay complication.Catheter time is very short,about 1～3 days or without catheter at all.None of the ureteral orifice were damaged in seven cases of bladder tumors near the ureteral orifice.Six patients were recrred during our follow-up in 50 patients (12%).Conclusions It has been demonstrated that Ho:YAG laser therapy is provided with advantages of simple procedure,the absence of complication,high patient satisfaction,and ability to be used in the outpatient.It is more convenience than TUR-Bt in tumors in the neck of bladder or apex of bladder.

12 trace elements from the hairs of 20 cases of aplastic anemia were examined and compared with that from hairs of normal people as control. Results showed that in Yin-deficient type patients, Li, Ca, Si, Cr markedly decreased; in Yangdeficient type patients, Zn, Mg, Ba, Si, Ca, Li markedly decreased, while all 12 trace elements decreased in patients of deficiencies of both Yin and Yang. New approaches were also offered for treatment of aplastic anemia on the basis of differential diagnosis.

Objective To study the relationship between the bladder outlet obstruction(BOO)and the area under the curve of detrusor during voiding related parameters. Methods One hundred and thirty-eight patiens with benign prostate hyperplasia(BPH) underwent clinical evaluation, including physical examination, flow rate and post-void residual volume measurement. Pressure flow studies were performed. Mean patient age was 68 years (range 56 to 82). The AG number and the LinPURR were recorded to classify the patients into 3 groups, namely unobstructed, equivocal obstructed and obstructed, as the traditional classification. Two new parameters including the area under the curve of detrusor pressure during voiding(AUCdet) and the area under the curve of detrusor pressure during voiding adjusted for voided volume(AUCdet/Vol) were calculated and compared with the traditional classification using the Linear discriminant analysis. Results According to the traditional classification, there were 33 unobstructed, 32 equivocal and 44 obstructed cases. The AUCdet and AUCder/Vol of the 3 groups were different(P＜0.001). Linear discriminant analysis showed that of the cases, 90. 9%(30/33), 43.8%(14/32) and 70. 5%(31/44) were identically categorized by the traditional and the AUCdet/Vol classifications in the unobstructed, equivocal and obstructed groups, respectively. Conclusions The area under the curve of detrusor pressure during voiding related parameters appear to be good parameters of the BOO in patients with BPH. Further studies are needed to test the reliability and validity of these new parameters.

Objective To study the change of clinical and urodynamic parameters in the patients with lower urinary tract symptom (LUTS) caused by detrusor overactivity (DO). Methods Two hundred and twenty-seven patients with LUTS underwent clinical evaluation from October 2006 to December 2008, including Prostate Volume (PV), International Prostate Symptom Score (IPSS), Peak Flow rate (PF) and Residual Urine (RU) measurement. Pressure flow studies were performed. The detrusor overactivity was recorded to classify the patients into 2 groups, DO group and none DO group. The clinical and urodynamic parameters were compared between the two groups. Results Mean patient age was 70 years (range 52 to 89). According to the urodynamic results, there were 126 patients in DO group and 101 patients in none DO group. The mean patients age was older in DO group than the none DO group(P＜0.05). Adjusted by age, the PV, PF, and RU were no different between the two groups(P>0.05). The mean first sensation of bladder, bladder compliance, cystometric capacity, bladder outlet obstruction parameters, single voiding volume and max detrusor pressure during contraction were different between the two groups(P＜0.05). Conclusions The main risk factors of DO are the ageing and BOO. The non invasive parameters such as PV、 PF、 and RU could not be used to judge DO. The changes of urodynamic parameters caused by DO were hyperaesthesia of bladder、lower bladder compliance、 higher max detrusor pressure and lower max cystometric capacity. This study emphasis the importance of the urodynamic studies in the aged patients with LUTS.

Objective To study the efficacy and safety of intravesical chemotherapy combined with intravenous chemotherapy for high grade T1 (T1G3) bladder cancer after transurethral resection of bladder tumor(TURBT).Methods From January 2012 to December 2015,111 patients with high grade T1 (T1 G3) bladder cancer were retrospectively reviewed.Thirty-six patients received TURBT and intravesical chemotherapy and intravenous chemotherapy (group A),75 patients received TURBT and intravesical chemotherapy(group B).In group A,there were 28 males and 8 females,with average age 66.2 years;in group B,there were 59 males and 16 females,with mean age 67.9 years.There was no statistical difference between the two groups in age,sex,smoking history,tumor diameter,tumor number.1-year recurrence-free survival (RFS),1-year progression-free survival (PFS),intravenous chemotherapy adverse reaction were analyzed.Results All the patients were followed-up for 12 months.9 patients relapsed in group A,1-year RFS rate 75％,and the median RFS of the 9 patients was 9 (3-11) months.36 patients relapsed in group B,1-year RFS rate 52％,and the median RFS of the 36 patients was 7 (3-11) months.There was statistically significant difference between the two group(P =0.02).One patient progressed in group A,1-year PFS rate 97.2％,and the PFS was 9 months.Six patients progressed in group B,1-year PFS rate 92％,and the median PFS was 9.5(6-12) months.There was no statistically significant difference (P =0.305) between the two group.Only 1 case (3％) appeared Ⅲ° or above intravenous chemotherapy adverse reaction.Conclusions Intravesical chemotherapy combined with intravenous chemotherapy offers a better RFS rate than the intravesical chemotherapy alone for patients with T1G3 bladder cancer after TURBT,and there are very low rates of serious side effects.Intravenous chemotherapy may be considered as a new therapy strategy for T1G3 bladder cancer after TURBT.

Magnesium stents have gained increasing interest as an ideal stent of future intervention. In order to study the deformation behavior of magnesium alloy stents in the interventional treatment, the finite element method was used to analysis the effects of different crimp and expansion dimensions on the mechanical properties (maximum stress, radial recoil rate, longitudinal shortening rate and radial strength). The results showed that crimping and expanding have a minimal influence on the stent radial strength. When the expansion size is same, the maximum equivalent stress and recoil rate decrease with the crimp size. When the crimp size is same, in contrast with the radial recoil rate, the maximum equivalent stress and longitudinal shortening rate increase with the expansion size. In addition the paper verified the radial strength-radial displacement curve obtained by FEM. Results are basically consistent, indicating the finite element method can efficiently provide researchers with reliable, high-quality design.
Alloys ; Finite Element Analysis ; Magnesium ; Stents

Purpose To study the levels and subcellular localization of β-catenin in 5 different molecular subtypes of breast carcino-mas. Methods An immunohistochemical study was undertaken for measuring the levels and subcellular localization ofβ-catenin in 58 breast carcinomas. Results ( 1 ) The cytoplasmic expression of β-catenin was 21. 1%, 50%, 60%, 100% and 60% ( TNBC 84. 6%) in Lumina A, Lumina B, HER-2-OE, basal-like breast carcinoma ( BLBC) and uncl phenotype respectively. High cytoplas-mic expression was associated with the BLBC and TNBC subtypes ( P<0. 05 ) . ( 2 ) An association was identified between high cyto-plasmic expression of β-catenin, and high tumor grade (P<0. 01), abnormal E-cadherin, positive Ki-67 and CK5/6 (P<0. 05), negative ER and PR (P<0. 01), but no association was observed for lymph node metastasis, tumor size and patients’age. Conclu-sion An association is identified between high cytoplasmic expression, and high tumor grade, positive Ki-67 and CK5/6, negative ER and PR, that means a high cytoplasmic expression ofβ-catenin is associated with an adverse outcome in breast cancer. High cytoplas-mic expression are associated with the BLBC and TNBC subtypes whcih recognizing Wnt signaling as a rational target in TNBC and BLBC. The results of the study have implications for therapeutic target identification and the design of future clinical trials for TNBC and BLBC.