1.Analysis on readmission by reason of postoperative complications after transurethral prostatectomy
Chunlei XIAO ; Zhongxin CHEN ; Xiaojun TIAN
Chinese Journal of Minimally Invasive Surgery 2001;0(02):-
Objective To study the reasons leading to readmission in patients with severe postoperative complications after transurethral prostatectomy. Methods Clinical data of 27 cases of readmission after transurethral resection of prostate (TURP, 14 cases), transurethral vaporization of prostate (TUVP, 3 cases), transurethral laser prostatectomy (TULP, 9 cases) or holmium laser enucleation of prostate (1 case) in this hospital from June 1998 to June 2003 were analyzed. Results Reason leading to readmission included: postoperative severe bleeding in bladder (4 cases), urinary retention (15 cases), urethral stricture (3 cases), bladder neck contracture (2 cases), severe urinary frequency (2 cases) and urinary incontinence (1 case). Conclusions More weight should be placed on the fact that various modes of transurethral prostatectomy may precipitate severe long-term complications.
2.Experimental Study Progress on Tribendimidine,Artemether and Artesuante Against Clonorchis sinensis and other Trematodes
Shuhua XIAO ; Jian XUE ; Zhongxin WU
Chinese Journal of Parasitology and Parasitic Diseases 1987;0(01):-
Currently praziquantel is one of the major drugs used in treatment of schistosomiasis and other trematode infections.Recent experimental studies indicate that a new anthelmintic,tribendimidine,is used in the treatment of intestinal nematodes,also possesses effect against several species of trematodes including Clonorchis sinensis,Opisthorchis viverrini and Echinostoma caproni.Tribendimidine is even more effective against C.sinensis in rats that a single 300 mg/kg oral dose cures almost all of the animals treated,a lower cure dose than praziquantel(375-500 mg/kg).The anti-malarial drugs artemether and artesunate are not only effective in the prevention of schistosomiasis,but also effective against several species of trematodes,especially C.sinensis.The single oral dose of both drugs to cure or achieve high efficacy in infected rats is 75 mg/kg.This review summarized research progress on tribendimidine,artesunate,and artemether in experimental animals infected with C.sinensis and other species of trematodes.
3.Role of OMA1 in lipopolysaccharide-induced acute kidney injury
Xiao XIAO ; Zhenzhao LUO ; Man KONG ; Zhongxin LU
Chinese Journal of Nephrology 2017;33(4):296-302
Objective To investigate the role of OMA1 in acute kidney injury (AKI) induced by lipopolysaccharide (LPS).Methods OMA1 wild-type and knocked out mice (8 week old) were injected with 10 mg/kg body weight of LPS.The model was confirmed by testing mouse serum creatinine and blood urea nitrogen.The apoptosis in mouse kidney cortex was examined by TUNEL staining and cleaved caspase 3.In vitro,in humam kidney proximal tubular cells (HK2) were knocked down OMA1 by transfecting OMA1 shRNA,with the scramble shRNA being used as negative control of transfection.HK2 cells were cultured with 5 μg/ml of LPS for 24 hours to induce apoptosis.DAPI staining of cells and caspase-3 activity were applied to test apoptosis.The images of mitochondria in cells were obtained by transfection of mito-green plasmid and OMA1 shRNA.Western blotting was used to exam the OMA1 and Cytochrome C expressions.Resudts Compared with OMA1 KO mice,LPS induced more severe AKI of WT mice with higher Scr [(97.2±26.5) μmol/L vs (53.0±17.7) μmol/L,P < 0.05] and BUN [(43.3± 13.7) mmol/L vs (29.7±7.7) mmol/L,P < 0.05].Moreover,there were more apoptosis cells in kidney cortex in WT mice than in OMA1 KO mice [(75.4± 26.1)/ram2 vs (38.3± 14.4)/mm2,P< 0.05].About 46% of OMA1 expressions in HK2 cells were inhibited by OMA1 shRNA transfection (P < 0.05).Further,OMA1 shRNA cells with LPS stimulation had decreased mitochondria fragmentation [(29.8±10.9)% vs (43.2±6.8)%,P < 0.05],Cytochrome C release [(37.0±12.3)% vs (76.0±26.2)%,P < 0.05],and cell apoptosis [(13.2±3.9)% vs (25.0±7.1)%,P < 0.05] as compared with control cells.Conclusion Knockdown of OMA1 alleviated septic AKI through inhibition of cell apoptosis,mitochondria fragmentation,and Cytochrome C release.
4.Factors of influencing supply and utilization of rehabilitation service in five grade A hospitals in Beijing
Bo WEI ; Hong DAI ; Zhongxin XIAO ; Jin WANG ; Yanping YE
Chinese Journal of Rehabilitation Theory and Practice 2005;11(12):1048-1050
ObjectiveTo make sure the factors of influencing supply and utilization rehabilitation service of hospitals in Beijing.MethodsFive grade A hospitals in different districts in Beijing were surveyed to realize the condition and factors of influencing supply and utilization of rehabilitation service in polyclinics in Beijing and make sure the developing situation of departments of rehabilitation medicine, and its restriction factors in their hospitals.ResultsThe departments of rehabilitation medicine in the five hospitals had not reached to requirement of administer criterion to comprehensive hospitals, issued by Ministry of Health. The factors of influencing supply and utilization of rehabilitation service in polyclinics in Beijing included: discordant cooperation between rehabilitation section and other sections in hospitals; leaders of hospitals and clinical personnel not understanding the importance of rehabilitation early intervention much; patients and their family not understanding the special curative effect to prevent and treat disability of rehabilitation; the application for reimbursement limitation to the fee for patients to accept rehabilitation treatment and/or stay in rehabilitation section in hospitalization insurance and plan as a whole, and so on.ConclusionThe factors above limit the further development of rehabilitation service of polyclinics in Beijing. Effective measures should be taken and correlative policies should be established in order to promote the rehabilitation service in Beijing.
5.Relationship of chronic central pain and substance P in spinal dorsal horn after spinal cord injury
Zhifang LIU ; Hong DAI ; Xiulai GAO ; Zhongxin XIAO ; Peng JING
Chinese Journal of Rehabilitation Theory and Practice 2003;9(12):719-721
Objective To approach the neurobiochemical mechanism of chronic central pain (CCP) after spinal cord injury (SCI). Methods 28 SD rats were divided into four groups, the normal group (group A), the pseudosurgery group (group B), and groups with CCP (group C) and without CCP (group D) after L1 spinal cord section injured with WADE method. T13 and L2 segments of rats' spinal cord were took and concentration changes of substance P (SP) in the spinal dorsal horn between two sections were examined by immunofluorescence histochemistry staining combined with confocal laser scanning microscope. Results Concentration of SP in the group D was decreased significantly compared with groups C,A and B (P<0.05-0.01), that of the group C was less than that of group A and B (P<0.05). Conclusion The rat model established by WADE method is proper to study CCP after SCI. SP in dorsal horn of spinal cord may inhibit the CCP after SCI in some degrees.
6.Effect of comprehensive therapy on central pain after incomplete spinal cord injury
Zhongxin XIAO ; Hong DAI ; Bin JIA ; Jianzhong WANG
Chinese Journal of Rehabilitation Theory and Practice 2005;11(9):765-766
ObjectiveTo observe the effects of comprehensive therapy on central pain after incomplete spinal cord injury. Methods12 patients with central pain after incomplete spinal cord injury who accepted comprehensive therapy were assessed with McGill pain questionnaire (MPQ) and visual analogue scale (VAS) before and after treating. ResultsThe scores of pain rating index sensory quality (PRI-S), pain rating index totality (PRI-T), the number of words chosen (NWC), pain rating index affective quality (PRI-A) and present pain intensity (PPI)max in MPQ and VAS were significantly decreased(P<0.01 or P<0.05).ConclusionThe comprehensive therapy is practical effective on central pain after incomplete spinal cord injury.
7.Effects of Annexin-A1 gene silencing induced by siRNA on the growth and migration of BV-2 cells and its possible mechanisms
Liqing WEI ; Lu LIU ; Zhonghuan DING ; Xiao XIAO ; Jing SHI ; Zhongxin LU ; Zhenzhao LUO
Chinese Journal of Microbiology and Immunology 2016;36(3):207-212
Objective To investigate the effects of Annexin-A1 ( Anxa1 ) gene silencing induced by siRNA on the growth and migration of microglial BV-2 cells and its possible mechanisms.Methods A synthesized siRNA duplex targeting Anxa1 gene was transfected into BV-2 cells.The efficiency of siRNA-in-duced Anxa1 gene silencing was evaluated on both mRNA and protein levels by using reverse-transcription PCR and Western blot assay.MTT assay was performed to measure the proliferation of BV-2 cells with si-lenced expression of Anxa1 gene.Flow cytometry with Annexin V-FITC/PI double staining was used to de-tect the apoptosis rate of BV-2 cells.Transwell chambers were used to analyze the effects of siRNA-induced Anxa1 gene silencing on the migration of BV-2 cells.Western blot assay was performed to detect the expres-sion of signaling proteins related to cell cycle and migration.Results Compared with the siRNA negative control ( siRNA-NC) group, the inhibitory rates of siRNA-induced Anxa1 gene silencing on the proliferation of BV-2 cells were significantly increased at the time points of 24 h, 48 h and 72 h after intervention [(16.9 ±2.1)%, (23.1±3.6)%and (42.4±1.7)%vs (1.35±0.5)%, (2.06±0.7)% and (8.65±0.9)%, P<0.05 ].The apoptosis rate of BV-2 cells transfected with Anxa1 siRNA was (18.4±2.1)%, which was significantly elevated as compared with that of the siRNA-NC group (5.2±0.3)%and control group (4.3±0.2)%.Cell migration of the Anxa1 siRNA transfected BV-2 cells was inhibited remarkably at 48 h as com-pared with that of the siRNA-NC group (28.7±5.2 vs 173.4±11.4, P<0.01).Moreover, the suppressed expression of Cyclin D1 protein and activation of p38 and JNK signaling pathways were induced by silenced expression of Anxa1 gene in BV-2 cells.Conclusion The growth and migration of BV-2 cells were signifi-cantly inhibited by silencing the expression of Anxa1 gene with siRNA, the possible mechanisms might be associated with the suppressed expression of Cyclin D1protein and the activation of p38 and JNK signaling pathways.
8.Role of performance appraisal management in standardized residents training
Chi CHEN ; Dongjie TIAN ; Tiefeng XU ; Zhongxin ZHAO ; Huan ZHANG ; Lei XIAO ; Jun TAN
Chinese Journal of Medical Education Research 2011;10(12):1492-1494
During the course of standardized residents training,the performance appraisal management of the residents was used besides other regular management methods.The allowances of residents were decided monthly by the evaluation and assessment of many kinds of tests or examinations.Through this new measure,the learning enthusiasm of residents could be fully motivated.The authoritative effectiveness of management was enhanced enormously.Meanwhile,the quality of the educational and training has also been improved greatly.This method could be very useful for the training process.
9.Multislice spiral CT and digital subtraction angiography in interventional therapy of hepatocellular carcinoma
Linhai ZHANG ; Chengjiang XIAO ; Yan CHEN ; Zhongli HE ; Xiuping CHEN ; Zhongxin WANG ; Zhengguang WU
Chinese Journal of Primary Medicine and Pharmacy 2008;15(3):403-404
Objective To investigate the value of multislice spiral CT(MSCT,)in interventional therapy of the hepatocellular carcinoma(HCC)emphasising on transcatheter hepanc arterial chemoembolization(TACE).Methods MSCT were performed in 60 cases of HCC before interventional procedure,CT findings of hepatic artery phase,portal venous phase and hepatic venous phase were observed respectively,among which CTA were done in 15 cases,and the anatomy of celiacartery and its branches were observed in 45 cases.The schemes of interventional therapy were worked out according to the findings of MSCT.Results MSCT showed 250 lesions,10 cases of tumor thrombosis in portal vein and 19 cases of hepatic arterioportal shunt.There was no significant difference between MSCT and digital subtraction angiography(DSA)in positive rate of in showing number of tumor or tumor thrombosis in portal vein(P>0.05),but the 3D construction of celiac artery branches in CTA was better than that in DSA,while angles between celiac artery and abdominal aorta in MSCT were more convenient than that in DSA.MSCT showed 5 eases of hepatic artery original abnormality,according to that in DSA.Conclusion MSCT is of importance for guidance of interventional therapy of hepatocellular carcinoma.
10.Application of stepwise discriminant analysis for grading of astrocytomas
Zhongxin ZHAO ; Yanhui LIU ; Min HE ; Jiahe XIAO ; Peng XU ; Kai LAN ; Lu JIA ; Yu ZHANG
China Oncology 2009;19(12):924-928
Background and purpose: Astrocytoma is the most common neuroepithelial neoplasm, and its grading has profound effect on its treatment and prognosis. To investigate the application of stepwise discriminant analysis in grading astrocytomas, this study developed two models of stepwise discriminant analysis according to relevant factors of astrocytoma. Methods: From January 2008 to April 2009, 111 primary astrocytoma patients were enrolled. Each patient was scored based on location, signal intensity on T1WI, signal intensity on T2WI, enhancement, edema, border, cyst or solidness, and mass effect of their magnetic resonance images. With their age score of grading, Fisher stepwise discriminant analysis and the Logistic discdminant were used. The results from the two models were then evaluated and compared. Results: According to Fisher stepwise diseriminant analysis, the predictive accuracy was 87.7% with 80.0% sensitivity, 91.5% specificity and 0.942 area of ROC curve. However, the predictive accuracy of Logistic discriminant analysis was 84.9% with 80.0% sensitivity, 86.8% specificity and 0.940 area of ROC curve. There were no statistically significant differences in terms of accuracy (P=0.250) and areas under ROC curve (Z=0.433, P=0.665) between the two models. Conclusion: Two stepwise discriminant analysis models are meaningful to predict the grading of astrocytoms, and the application of Fisher stepwise discriminant analysis is simpler than the Logistic discriminant analysis.