1.The effects of long term captopril administration on cardiac morphology and left ventricular function of rats with infarction
Chinese Journal of Pathophysiology 1986;0(01):-
To determine the effects of long term captopril administration on cardiacmorphology and left ventricular function in rats with myocardial infarction, captopril wasadministered to rats 3 days after the begining of myocardial infarction and continued for35 days. Captopril lowened the ratio of left ventricular weight to body weight of bothrats with and without infarction, and also reduced volume, length and dimention of myo-cyte. Captopril had special effects on ventricular geometry in rats with infarction, whichresulted in decreased radius of left ventricular cavity. The cardiac index of captopril-treatedrats with infarction during baseline and a volume loading didn’t change, whereas the ra-dius of left ventricular cavity and LVEDP were decreased significantly, which indicated anincrease of the ejection fraction index. The results showed that long term administrationof captopril might be unfavoralle to compensary myocardial hypertrophy, but catdiacfunction was improved, which was ascribed to reduction of left ventricular cavity volumeand LVEDP.
2.Entubulization nerve reconstruction in the experimental rat resulting in return of erectile function
Liquan HU ; Xinjun SU ; Shiwen LI
Chinese Journal of Urology 2001;0(10):-
Objective To investigate the feasibility of repairing surgically ablated cavernous nerves with silastic nerve tube conduit filled with nerve growth enhancing media. Methods 54 male adult Sprague-Dawley rats were randomized into 3 groups,the sham operated controls,the bilateral cavernous nerve ablation and entubulization nerve reconstruction with insulin like growth factor(IGF).1,3 and 6 months after surgery,rats models were evaluated with apomorphine test,followed by nicotinamide adenine dinucleotide phosphate (NADPH) diaphorase staining to identify NOS in penile nerve fibers of the proxiamal portion of penile shaft and penile crus. Results There was no statistically significant difference between the ablated and the entubulization nerve reconstruction groups at 1 month,however,at 3 and 6 months,Apomorphine test studies resulted in tumescence from 42% and 50% of the entubulization nerve reconstruction groups versus 0% and 0% of the ablated group,respectively (P
3.Evaluation on clinical effectiveness of modified laparoscopic sacral colpopexy
Xiaowei ZHANG ; Li XU ; Yanxia LI ; Yaping GAN ; Liquan CHEN
Chinese Journal of Obstetrics and Gynecology 2013;48(8):570-574
Objective To study clinical curative effect and complications of modified laparoscopic sacral colpopexy and evaluate the efficacy and safety of this procedure in treatment of pelvic organ prolapse (POP).Methods From Jan.2008 to Sept.2012,66 patients who had undergone modified laparoscopic sacral colpopexy for POP in the first affiliated hospital of Guangzhou medical university were studied retrospectively.Primary outcomes were assessed with POP quantitation (POP-Q) system that was measured before or after operation respectively to evaluate the objective cure rate and recurrence rate.Secondary outcomes were measured by the pelvic floor distress inventory short form (PFDI-20) to evaluate the subjective cure rate,as well as to evaluate the improvement of postoperative lower urinary tract symptoms.Results Sixty-three patients were followed up for 6 to 57 months,and the median follow-up time was 16 months,the overall objective cure rate was 95% (60/63).Postoperative each indicator point was reset anatomically according to POP-Q,the overall objective cure rate was 90% (57/63),and the total recurrence rate was 10% (6/63).The median postoperative vaginal length was slightly shortened than preoperative length[7.5 cm versus 8.0 cm,P < 0.01]; the median score of postoperative PFDI-20 was obviously improved compared to the preoperative (21 versus 75 scores,P < 0.05) ; there was no statistically significant difference in POP-Q staging and questionnaire score at more than 3 years,> 2-≤ 3 years,>1-≤2 years,<0.5-1 year after operation(P >0.05).Among 23 patients with stress urinary incontinence (SUI) and 5 patients with mixed urinary incontinence (MUI),15 cases underwent transvaginal tension free vaginal tape-obturator (TVT-O) procedure simultaneously,13 cases did not.The cure rate of SUI was 14/15 and 10/13,respectively.Conclusions Modified laparoscopic sacral colpopexy can not only reach the anatomical replacement stage but significantly improve the postoperative quality of life with high subjective and objective cure rate and few complications.The long-term curative effect is stable.
4.Intramuscular and subcutaneous forearm parathyroid autotransplantation after total parathyroidectomy for renal hyperparathyroidism patients
Shengxue XIE ; Jiangming CHEN ; Liquan YU ; Xiaoping GENG ; Li HAO
Chinese Journal of Endocrine Surgery 2015;9(4):287-290
Objective To compare the effects of intramuscular or subcutaneous forearm parathyroid autotransplantation after total parathyroidectomy on patients with renal hyperparathyroidism.Methods From Jan.2012 to Dec.2013,total parathyroidectomy was carried out in 90 patients with renal hyperparathyroidism.According to the location of their parathyroid autograft,patients were divided into intramuscular group (n =39)and subcutaneous group(n =51).One patient in the intramuscular group and two in the subcutaneous group were excluded for the high levels of intact parathyroid hormone (iPTH) the day after operation.iPHT was analyzed 2 weeks,1 month,3 and 6 months after surgery.Results The time of autotransplantation was significantly shorter in subcutaneous group than in intramuscular group (11.46 (2.63) min vs 22.12 (3.78) min;t =0.632,P < 0.05).iPTH levels were significantly lower in subcutaneous group than in intramuscular group 2 weeks after operation (P < 0.05).There was no significant difference between the 2 groups regarding iPTH levels at 1 month,3 or 6 months after surgery.In the follow-up one patient in intramuscular group and one in subcutaneous group had graft-dependent hyperparathyroidism.Conclusion As compared to intramuscular parathyroid autotransplantation,subcutaneous parathyroid autotransplantation has advantages of simpler to operate,shorter autoimplantation time and easier to autograftectomy.
5.Survey to the teaching of hospital management course
Liquan WANG ; Mingya HU ; Bei LI ; Aiqin YANG ; Youjia XU
Chinese Journal of Medical Education Research 2011;10(7):854-857
To carry out the teaching of hospital management in-depth and improve teaching quality, the group of teaching hospital management in 2010, through questionnaires, discussion and other forms, found out and analyzed the teaching situation, including the nature of this course, start time and hours, teacher team, teaching content, teaching methods, evaluation form, and so on. The result was that most students thought it not necessary to open so many courses. Then the article put forward some suggestions and countermeasures to further improve the management course.
6.Genitofemoral nerve graft repair the ablated cavernous nerves in rats
Xinjun SU ; Liquan HU ; Xinmin ZHENG ; Shiwen LI ; Binqun TIAN
Chinese Journal of Urology 2000;0(05):-
ObjectiveTo investigate the feasibility of repairing surgically ablated cavernous nerves by using an interposition genitofemoral nerve graft and with nerve growth enhancing media (insulin-like growth factor-I,IGF-I) injection.MethodsA total of 54 male adult Sprague-Dawley rats were randomly divided into 3 groups (each of 18 rats),including sham operation controls, bilateral cavernous nerve ablation and nerve graft with IGF-I injection groups.At 1,3 and 6 months after surgery, the rat models were evaluated with Apomorphine Test.Then nicotinamide adenine dinucleotide phosphate-diaphorase (NADPH-d) staining was used to identify nNOS in penile nerve fibers of the proximal portion of penile shaft.ResultsAt 1,3 and 6 months after surgery, the rats of sham operation group had normal erectile function (erection rate,100%),while the rats of nerve ablation group lost erectile function at all (erection rate,0%).There was no statistically significant difference of ED between the nerve ablation and nerve graft groups at 1 month;however,at 3 and 6 months,Apomorphine Test resulted in tumescence of 50% and 66.7% of the nerve graft groups vs 0% and 0% of the nerve ablation groups, respectively ( P
7.The study of spermatogenesis impairment of contralateral testicle following unilateral testicular torsion and immune response
Ziming LIU ; Xinmin ZHENG ; Zhiwei YANG ; Shiwen LI ; Liquan HU
Chinese Journal of Urology 2000;0(01):-
Objective To investigate the mechanism of contralateral testicle spermatogenesis impairment following unilateral testicular torsion in rats.Methods Healthy male Sprague-Dawley rats(n=24) were randomly divided into 3 groups:group 1(sham-operation),2 and 3,each comprising 8 rats.Under surgical conditions,the left testes of the rats in groups 2 and 3 were rotated through clockwise 720? torsion,then detorsion after 12 h or 24 h,respectively.The contralateral testes were harvested after 1 month and the relative proportions of germ cells were measured by the flow cytometry(FCM).Anti-rat immunoglobulin G(IgG)antibodies against spermatozoa antigens were detected in contralateral testicular tissue by immunohistochemical method.Results In groups 1,2 and 3,the weight of contralateral testis was(1555.73?(72.34)),(1184.20?101.02) and(783.60?117.93)mg,respectively;the number of apoptotic cells was 53.25?8.61,1622.00?129.31 and 3401.25?179.75,respectively;the positive rates of antisperm antibodies were 0,0.55?0.02 and 0.69?0.03,respectively.There were significant differences in above parameters between groups(P
8.Clinical application and long-term follow-up of the substitution of a segmental sinus-body of stomach for urinary bladder
Yunfei LIU ; Liquan HU ; Xinmin ZHENG ; Shiwen LI
Chinese Journal of Urology 2001;0(03):-
Objective To evaluate the reconstruction of bladder using a segmental sinus-body of stomach on the basis of a clinical study.Methods We retrospectively reviewed the medical records,laboratory evaluations,imaging examinations,cystoscopy,urodynamic studies of 30 patients(17 men and 13 women;mean age,55 years;age range,21-69 years) who underwent the reconstruction of bladder using a segmental sinus-body of stomach.Of the 30 patients,24 had primary bladder cancer and 6 had tuberculous contracture of the bladder.Results After operation,the new gastric bladder worked well in keeping and emptying urine.All patients micturated through the urethra.The bladder capacity was 280-580 ml(mean,385 ml).The maximum urethral pressure was 20-60 cm H_2O(mean,49 cm H_2O).The filling bladder pressure was 5-15 cm H_2O(mean,12 cm H_2O).The maximum bladder pressure was 35-65 cm H_2O(mean,55 cm H_2O),and it was 28-60 cm H_2O(mean,46 cm H_2O) during urination.Qmax and post-void residual urine were 10-28 ml/s(mean,18 ml/s) and 5-85 ml(mean,20 ml),respectively.Follow-up ranged from 9 months to 24 years(mean,8.2 years).There were no disturbance of water and electrolyte metabolism,no vesicoureteral reflux,no uracratia,and no damage to renal function.Complications included perineal and vesical pain in 4 cases,enuresis in 5 cases,which gradually remitted 3-6 months after surgery,and bladder stone formation in 1 case,who underwent surgery again.At 3.5 years after surgery bladder tumor relapsed in 1 case,who then underwent transurethral resection of bladder tumor. Conclusions Our data show that the substitution of a segmental sinus-body of stomach for urinary bladder worth popularizing because of low complication rate and approximately normal urologic indexes.
9.Effect of experimental varicocele on the prostatic oxidative stress in rats
Dong CHENG ; Xinmin ZHENG ; Shiwen LI ; Liquan HU
Chinese Journal of Urology 2006;0(S2):-
0.05), while the expression of CuZn-SOD mRNAwas significantly higher in the experimental group(0.366?0.085) than in the control group(0.221?0.043) (P0.05). Conclusions An experimental varicocele can lead to increased reactive oxygen species and decreased antioxidant enzymes levels in prostate, which may be one of the important factors of male infertility induced by varicocele.
10.IFN-? and TGF-?1 levels in expressed prostate secretion of chronic abacterial prostatitis
Xiegang DING ; Shiwen LI ; Xinmin ZHENG ; Liquan HU
Chinese Journal of Urology 2006;0(S2):-
0.05). Conclusions TNF-? and TGF-?1 had a very important role in etiology of chronic abacterial prostatitis and they can be the objective parameters in the diagnosis of chronic prostatitis.