Ohjective To approach the therapeutic methods of urinary fistula after hypospadias urethroplas- ty.Methods Forteen post-hypospadia repair urethral fistula managed between 2000 to 2005 were reviewed.Differ- ent procedures were carried out according to the size and location of orificium fistulae.Results Eleven repairs were successful after one attempt.The success rate was 78% (11/14).Conclusion The procedure of fistula repair should be chosen according to the size,location and regional condition of orificium fistulae.

The expression of specific genes in sex chromosomes is the basis of sex-specific membrane protein in mammalian spermatozoa. The gene expression products are shared among spermatozoa through intercellular bridges, however, the phenomena of male transmission-ratio distortion and sex ratio distortion proved that differential proteins exist between X and Y spermatozoa. In addition, the existence of sex-specific proteins was confirmed by the separation experiment of X/Y chromosome bearing spermatozoa and the detection result of sex specific proteins. At the same time, it was also confirmed that the difference of the sex-specific protein is weak . The advance of separation techniques as well as the integration and optimization among these techniques has made it possible to separate sex-specific membrane proteins in mammalian spermatozoa.

This article introduces a novel scavenger for waste anesthetic gas which makes use of negative pressure in operating room. This setting can scavenge the exhaust gas absolutely without affection the normal work of anaesthesia.
Anesthetics ; Gas Scavengers ; Operating Rooms

Objective To study the effect of a novel injectable scaffold material chitosan- beta-TCP combining bone marrow mesenchymal stem cells (MSCs) and platelet-rich plasma (PRP) on repairing bone defect of goat. Methods The model of the studies was 12ram diameter circular hole tibia bone defect of goat. 30 Chinese goats were raudomly divided into 5 groups: blank group: nothing was embeded in bone defect; simple material group: the material embeded in bone defect was chitosan-beta-TCP; PRP group: the material was chitesan-beta-TCP combining PRP; MSCs group: the material was chitosan-beta-TCP combining MSCs; PRP/MSCs group:the material was chitosan-beta-TCP combining MSCs and PRP. At 4,8 weeks after operation, the samples were observed, histological and image analysis were used to evaluate the effect of bone regeneration. Results At 8 weeks, the surface of bone defect zone of PRP/MSCs group were coverd by continuous new bones, like normal bone. Histological slice showed the esteoid at boundary of normal bone of MSCs/PRP group obviously increased compare to other groups at the 4th or 8th week after operation respectively. The new bone tissues of bone defect were punctiform or lamellar new bone tissues, in which the proportion of big lamellar new bone tissue obviously increased. Image analysis showed that the areas of balnk group, simple material group, PRP group, MSCs group, PRP/MSCs group were 8.79±3.63,14.49± 3.72,24.18 ± 5.38,24.42 ± 5.10,31.10 ± 3.49 at 4 weeks and 15.41 ± 4.21,25.36 ± 5.37,30.71 ± 4.39, 33.97 ± 4.45,48.60 ± 5.97 at 8 weeks respectively. The effect of bone regeneration of PRP/MSCs group was better than other groups (P < 0.05). Conclusion The injectable tissue-engineering bone constructed with chitosan-beta-TCP, MSCs and PRP possesses good ability on repairing bone defect.

ObjectiveTo investigate the effect of hyperbaric oxygen (HBO) on proliferation and differentiation of endogenous neural stem cells after acute spinal cord half cut-off in rats. MethodsThe differences of proliferation and differentiation of endogenous neural stem cells between injured group and intervention group were compared. ResultsThere were remarkable differences between injured group and intervention group. ConclusionHBO can promote the proliferation and differentiation of the neural stem cells in rats after spine cord injury.

The nuclear transcription factor nuclear factor erythroid 2-related factor 2 (NRF2) plays a crucial role in maintaining cellular redox homeostasis. The aberrant NRF2 signaling confers enhanced antioxidant capacity, which is linked to tumor progression and therapeutic resistance. The current study investigates the biological effects and molecular mechanism of tribbles homolog 3 (TRIB3), a stress-induced protein, in regulating cell survival and apoptosis in lung cancer. This study first performed the RNA sequencing data analysis with 576 lung adenocarcinoma patients from the cancer genome atlas (TCGA) database. The NRF2- antioxidant response element (ARE) signature was enriched in patients with high TRIB3 expression. Dual-luciferase reporter assay and real-time quantitative polymerase chain reaction (PCR) were used to confirm the effect of TRIB3 on the kelch-like ECH-associated protein-1 (KEAP1)-NRF2 pathway. Abrogation of TRIB3 impaired NRF2 transcriptional activity and reduced the expression of its target genes. Moreover, TRIB3 enhanced NRF2 stability via blocking KEAP1-NRF2 interaction. TRIB3-depletion promoted reactive oxygen species (ROS) production, restrained cell proliferation, and enhanced carboplatin-induced apoptosis. In addition, NRF2 overexpression recovered the tumor inhibition effect of TRIB3-depletion. Consistently, TRIB3 failed to modulate apoptosis in NRF2 depletion cells. In summary, this study shows that TRIB3 inhibits the KEAP1-NRF2 interaction and upregulates the transcriptional activity of NRF2, thereby promoting lung cancer cell proliferation and reducing the sensitivity to chemotherapy. Targeting the TRIB3-NRF2 signal axis may become a new strategy for ROS homeostasis and lung cancer treatment.

Objective To investigate the relationship of fascin-1 protein expression with the metastasis of basal cell carcinoma and squamous cell carcinoma. Methods Skin specimens were obtained from 10 normal human controls, 13 patients with basal cell carcinoma (8 nodular variant and 5 superficial variant) and 24 patients with SCC (11 SCC in situ and 13 invasive SCC). Immunohistochemical staining was performed to analyze the expression of fascin-1 protein. The staining results were quantitatively assessed with computer image analysis system (Image-pro Plus 6.0). Results The optical density of fascin-1 averaged 0.1152±0.04574 in SCC in situ, 0.1257±0.03096 in invasive SCC, and 0.0293±0.00981 in normal controls; the expression of fascin-1 was significantly higher in SCC tissue than in normal control skin (both P<0.05). Increased optical density was also observed for fascin-1 in nodular variant of SCC (0.0808 ±0.05642) and superficial variant of SCC (0.0806±0.04346) compared with the normal controls, whereas no statistical difference was observed between nodular and superficial variant of SCC. Conclusion In BCC and SCC, there is an over expression of fascin-1, which may be linked to the local invasion of carcinoma,

Objective To study the changes of subgroups of peripheral blood T lymphocytes in the patients infected with the 2009 pandemic influenza A ( H1N1 ) virus of different severity type. Method A total of 66 patients infected by H1N1 evidenced by RT-PCR admitted from September 2009 to January 2010 were divided into three groups: mild type ( B group, n = 47 ), cured patients of severe and critical severe type ( C group, n = 14) and died patients ( D group, n =5), according to the severity and prognosis. A total of 20 healthy volunteers served as control group( A group). Peripheral blood lymphocyte count, CD3+,CD4+ and CD8+ T lymphocyte count were detected by flow cytometry at the different time points. Fever duration and H1N1 virus negative time were compared. Statistical analysis were performed by using SAS version 9.13 software and the data were processed with ANOVA and SNK test. Results Lymphocyte count, CD3+,CD4+ and CD8+ T lymphocyte count declined in the early period in all the groups, and there were significant differences compared with A group (P＜0. 05), while rised with the clinical progression in group B and C,and those of C group were lower than B group ( P ＜ 0.05 ), but those of D group were always low. Fever duration and H1N1 virus negative time were (4.4 ± 1.6) days vs. (4.4 ± 1. 4) days, ( 12.9 ± 3. 1 ) days vs.( 10.2 ± 2.6) days and ( 15.2 ± 7.3 ) days vs. ( 13.3 ± 2.9 ) days respectively, and there were significant differences among the three groups ( P ＜ 0.05 ). Conclusions The cellular immune function was seriously damaged when patients were infected with H1N1. Further more, the changes of lymphocyte count, CD3+ , CD4+and CD8+ T lymphocyte count were tightly related with the degree of severity and prognosis. These findings can be used for clinical diagnosis and treatment.

Objective This study was to compare surgical safety and oncologic adequacy of laparoscopy-assisted gastrectomy (LAG) versus open gastrectomy (OG) for advanced gastric cancer.Methods 120 consecutive AGC patients undergoing LAG with D2 lymph node dissection between September 2005 to December 2009 were compared with 120 AGC patients undergoing OG during the same period.In each group,50 underwent distal gastrectomy,70 for total gastrectomy.Results There was no conversion to open surgery in LAG.The operative time was significantly longer in LAG than OG [(307 ± 84) min vs.(203 ± 52) min,t'=11.556,P ＜ 0.01].The estimated blood loss was significantly less in LAG group than OG group [(258 ± 78) ml vs.(318 ± 89) ml,t =5.550,P ＜ 0.01].The number of lymph nodes retrieved was(17 ±11) in LAG,(16 ±10)in OG (t =0.723,P＞0.05).All margins were tumor free in both groups.9 patients had the postoperative complication in LAG,8 patients in OG (P ＞ 0.05).Length of postoperative stay was significantly shorter in LAG than OG [(10.6 + 4.7) vs.(14.3 ± 2.9) days,t' =7.339,P ＜0.01].There was no mortality in both groups.The 5-year recurrence-free survival rate were comparable (47.6％ in LAG vs.42.8％ in OG,x2 =0.577,P ＞ 0.05) between the two groups.Conclusions This study suggested that laparoscopy-assisted gastrectomy is safe and feasible in terms of surgical outcome and oncologic adequacy for advanced gastric cancer.

Objective To investigate the clinic characters and diagnosis of superficial siderosis in the central nervous system (SSCN).Methods One patient was systematically studied by the authors. Results SSCN was a rare entity,resulting in the deposition of ferric pigments and ions on the surface of the central nervous system.The clinical features included progressive sensorineural hearing loss,cerebellar ataxia and pyramidal sign,widespread hypointensity band at surfaces of the cerebral or cerebellar hemispheres,the brain stem and the spinal cord on Gradient Echo T_2~*-weighted images (GRE-T_2~* WI) of MR,elevation of the levels of ferritin in the cerebrospinal fluid.Conclusions This disease can be identified at early stage with history and physical examination.GRE-T_2~* WI and some related cerebrospinal fluid tests will contribute to diagnosis.