ABSTRACT
Obstructive azoospermia(OA)is a common cause of male infertility.In recent years, most of patients can successfully nurture the next generation with the development of male microsurgery technology and assisted reproductive technology.However,there are very some group of patients with com-plicated obstructive azoospermia that obstructive tract stenosis occurs in different parts due to multiple rea-sons.These patients cannot be treated by conventional microsurgery,while comprehensive surgical treat-ment can achieve this goal.Here is an introduction for the etiology,diagnosis and comprehensive treatment of complicated obstructive azoospermia.
ABSTRACT
Objective To evaluate the therapeutic methods for stones in congenital anomalous kidneys. Methods The clinical outcomes of 126 patients(75 males and 51 females: mean age 39 years, range 12-66 years)who underwent extracorporeal shock wave lithotripsy (ESWL, n= 37), minimally invasive percutaneous nephrolithotomy (MPCNL, n = 41) or open surgery (n = 48) were retrospectively reviewed. There were 40 horseshoe kidneys(31.8%), 51 duplex kidneys(40.5%), 35 malrotated kidneys(27.8%). Seventyl calculi were located in left kidneys(55.6%)and 56 in right kid-neys(44.4%). There were 96 single stones(76.2%)and 30 complex stones(23.8%). The greatest di-ameter of stone ranged from0.8 cm to 2.2 cm(mean 1.5 cm) in ESWL group, 1.0 cm to 4.0 cm (mean 2.5 cm) in MPCNL group and 1.5 cm to 3.8 cm(mean 2.7 cm) in open surgery group. The therapeutic effects of 3 methods were compared. Results The stone-free rate at 1 session was 78.4%(29/31) in ESWL group, 85.4%(35/41) in MPCNL group and 87.5%(42/48) in open sur-gery group. No significant difference was found among the 3 groups(x2 = 1.39,P=0.50). The inci-dence of complications was 13.5% in ESWL group, 9.7% in MPCNL group and 6.3% in open sur-gery group(x2=1.28, P=0.53). Only 1 case of malrotated kidney suffered massive hemorrhage and was cured by selective embolism of renal artery. No major complications occurred in the other pa-tients. Conclusions With rigorous indication, ESWL or MPCNL is as safe and effective as open sur-gery in the management of stones in congenital anomalous kidneys. It should be considered as the pri-mary therapy. But the treatment must be individualized in terms of the type anomalous kidney, stone characteristics and obstruction.
ABSTRACT
Objective To screen and identify the novel markers for renal cell carcinoma. Methods The renal cancer A498 cell line was used as the antigen and human normal renal cell line HK-2 was used as control for subtraction biopanning from a phage display peptide library at 37 ℃ The positive and specific binding clones were identified by cell-based ELISA and immunocytochemical staining, and the identified clones were sequenced. Thus the amino acid sequence was deduced and the peptide was synthesized. The peptide was identified by immunofluorescence. Results Through a cell-based ELISA, immunocytochemical staining, and immunofluorescence, the Phage ZT-2 and synthetic peptide ZT-2 were shown to specially bind to the A498. The affinity binding to A498 was the highest (A_(ZT-2)/A_(control) = 3. 15) among the peptides assayed. The optical density of ZT-2 in renal cancer tissue (0. 453±0. 123) was significantly higher than that in normal and inflammatory renal tissue (0. 148±0. 075)(P<0. 01). Conclusions A peptide ZT-2 which is specific binding to renal cancer cell line A498 had been selected from phage display peptide libraries. Therefore, it provides a potential tool for early diagnosis of renal cancer or targeted drug delivery in chemotherapy.
ABSTRACT
Objective To explore the role of apoptosis and Fas, bax and bcl-2 proteins in the pathogenesis of testicular carcinoma. Methods Cell apoptosis was determined with TUNEL and flow cytometry, and the expression of Fas, bax and bcl-2 proteins were detected by cellular immunofluoresence technique in 56 cases of testicular carcinomas. Results Apoptotic index was closely correlated with the pathological type and lymph node metastasis of testicular carcinomas(P0.05). The apoptotic index was positively correlated with Fas and bax expression, and negatively correlated with bcl-2 expression (P
ABSTRACT
0 05). Positive expression rates of Fas and bcl-2 were 60 0% and 92 9% respectively and Fas increased along with the escalation of the pathological grading (?=0 584,P0 05). Conclusions DNA ploidy aberration,Fas and bcl-2 overexpression could play an important role in the development of esophageal carcinoma .
ABSTRACT
Objective To investigate the effects of kidney transplantation in sensitized recipients receiving conventional human leukocyte antigen(HLA) and cross-reactive groups(CREG) matching.Methods The HLA and CREG matching were used to select the best donors for 82 recipients with high titer of panel reactive antibody(PRA),and adjunctive application of plasma exchange and intravenous immunoglublin were conducted.Results The successful rate was 90%(74/82) and mortality rate was 1%(1/82).The incidence of hyperacute rejection,accelerated acute rejection,acute rejection and delayed graft function was 4%(3/82),6%(5/82),28%(23/82) and 21%(17/82),respectively.The incidences of acute rejection in groups of broad sensitized,HLA class Ⅰantibody positive recipients,HLA antibody positive recipients of post-transplantation and donor specific antibody were higher than those in groups of mild sensitized,HLA classⅡantibody positive recipients,HLA antibody positive recipients of pre-transplantation non-donor and specific antibody respectively(all P