Adult ; Brachial Plexus ; Female ; Humans ; Male ; Middle Aged ; Neurilemmoma ; surgery ; Treatment Outcome

Objective To assess the effect of L-carnitine(L-CN)on left ventricular hypertrophy(LVH)in patients undergoing maintenance hemodialysis. Methods Thirty-one patients undergoing hemodialysis were randomly divided into the L-CN group(n =20)and the control group(n = 11). Patients in the L-CN group received additional intravenous injection of 1.0 g L-CN immediately after hemodialysis for a 6-month period. Patients in the control group received isovolumic saline. Using echocardiography,left ventricular mass (LVM),left ventricular mass index(LVMI)and the ejection fraction(EF)were measured before and after the treatment. Plasma calculus,plasma phosphorus and hemoglobin levels were measured. Results The LVM decreased significantly from(252. 03 ±32. 29)g to(204. 47 ± 37.33)g in patients in L-CN group(P ＜ 0. 05),the LVMI decreased significantly from (155.83 ± 23.42)g/m2 to(129. 21 ± 17.46)g/m2 in patients in the L-CN group. However,LVM and LVMI remained unchanged in the control group. Conclusions Supplementation with L-CN induced hypertrophy of LVH in patients on maintenance hemodialysis.

Atherosclerosis is a multifactorial process associated with endothelial cell injury and dysfunction , inflammation, oxidative stress, cell proliferation, angiogenesis and so on , all of which play a crucial role in atherosclerosis . Wnt/β-catenin signaling pathway is highly conservative in the development of body , abnormal activation of which is related to types of diseases including cancer .Accumulating studies have shown that Wnt/β-catenin signaling pathway is involved in inflammation, oxidative stress and so on .This article would make a review about the role of Wnt/β-catenin signaling path-way in atherosclerosis based on the pathogenic mechanisms underlying atherosclerosis as mentioned above .

Comparison of rCBF SPECT imaging and clinical visual function of 12 cases with complete homonymous hemianopia (CHH) were taken before and after a course of oriented dynamic color photic stimulation (ODCPS ). It was suggested that ODCPS in patients with CHH was an effective met hod for increasing visual field and improving visual function. Cerebral metabolic patterns of increasing rCBF reflected the mechanism of ODCPS effecting the patients with CHH. The rgtinal- midbrain-occipital visual path way may play an important role in mediating the increase of visual field and restoration of visual function.

Objective To evalutate the safty of hBMSCs transpalntation and to observe their migration and distribution in the brain of young macaca fascicularis. To establish a new technology platform and theoretical basis for the treatment of central nervous system diseases in children. Methods Labelled hBMSCs were transplanted into the striatum of young macaca fascicularis. Brain sections were examined to evalutate the inflammatory reaction and immunological rejection of local injection sites by HE observation and immunohistochemical staining. Migration and distribution of transplanted?hBMSCs was observed by real?time fluorescence quantitative PCR of male DNA and fluorescence microscope. Results The results showed that the direct intracerebral injection of hBMSCs did not cause systemic symptoms in animals. There is no inflammatory reaction and immunological rejection was detected, and degeneration and necrosis of neural cells and proliferation of glial cells were absent in the local injection sites. The transplanted hBMSCs survived, and migrated into the brain after 4 weeks transplantation. Its migration and distribution have certain regularity and were overlapping between transplant recipients. In addtion, hBMSCs tended to extend rostrally into the forebrain and showed preference of migrating toward the blood vessels and below the ependyma. Conculsions Intracerebral transplantation of hBMSCs is safe. And hBMSCs can survive and migrate into the brain.

Objective To explore the role of glycogen synthase kinase (GSK)-3β/β-catenin signaling pathway on human immunodeficiency virus 1 (HIV-1) negative factor (Nef) protein promoting of human herpesvirus-8 (HHV-8) viral interleukin-6 (vIL-6)-induced angiogenesis.Methods GSK-3β mutant plasmid GSK-3β-S9A,dominant negative (DN) form GSK-3β-DN and the control vector pcDNA3.1+ were transfected into endothelial cells which stably expressed HHV-8 vIL-6 or HIV-1 Nef,or co-expressed vIL-6 and Nef protein.Microtubule formation assay was performed to explore microtubule formation ability.A chick embryo chorioallantoic membrane (CAM) model was used to detect angiogenesis.The expression of GSK-3β/β-catenin signaling pathway-related kinases in transfected cells and CAM tissue were further detected by Western blot.The measurement data were compared by t test.Results The activity of GSK-3β was decreased and the ability of HIV-1 Nef protein was enhanced by transfection with GSK-3β-DN in promoting vIL-6 induced microtubule formation (3.42 vs 2.51,t =3.67,P＜0.01) and angiogenesis (6.25 vs 3.97,t=4.06,P＜0.01).In contrast,the activity of GSK-3β was significantly increased and these functions of HIV-1 Nef protein mentioned above were inhibited by transfection with GSK-3β-S9A (0.62 vs2.51,t=8.48,P＜0.01; 0.39 vs 3.97,t=8.59,P＜0.01).The results of Western blot showed that with the elevated level of,β-catenin (in cells:3.53 vs 2.07,t=6.60,P＜0.05; in tissues:2.76 vs 1.74,t=17.40,P＜0.01) and vascular endothelial growth factor (VEGF,in cells:2.68 vs 1.87,t=4.28,P＜0.01; in tissues:2.20 vs 1.39,t=7.08,P＜0.01) were increased in the GSK-3β-DN transfected cells or tissues,while the opposite results were achieved in the GSK-3β-S9A-transfected cells (GSK-3β phosphorylation:0.50 vs 1.47,t=7.33,P＜0.01; β-catenin:1.05 vs 2.62,t=29.50,P＜0.01; VEGF:0.74 vs 2.16,t=20.95,P＜0.01) or tissues (GSK-3β phosphorylation:0.35 vs 1.97,t=10.72,P＜0.01; β-catenin:0.79 vs 1.77,t=5.72,P＜0.01; VEGF:0.43 vs 1.65,t=11.89,P＜ 0.01).Conclusion GSK-3β/β-catenin signaling pathway is involved in vIL-6-induced angiogenesis promoted by HIV-1 Nef protein,which would be valuable for the therapy of Kaposi's sarcoma,an acquired immunodeficiency syndrome,as a potential molecular target.

Background and purpose:Bladder cancer radical surgery is dififcult with many perioperative complications, and the learning curve is long. To introduce the clinical application of complete retrograde radical cystectomy and consequent abdominal cavity reconstruction in male bladder cancer, and to provide a standardized surgical procedure with minimum perioperative complications and short learning curve. Methods:From Apr. 2012 to Apr. 2013, 110 cases of male patients with bladder cancer received this procedure in our department, with a median age of 64 (35-83) years;Preoperative characters, surgical parameters, perioperative complications, pathology, long-term complications and short-term prognosis were collected and analyzed. Results:The median number of lymph nodes resected in operation was 12 (8-16);Neurovascular bundles were reserved bilaterally in 65 cases, and unilaterally in 31 cases;The complete procedure including urinary diversion took 4.4 (2.2-6.0) hours, with a median time of opened abdominal cavity of 43.0 (5.0-75.0) minutes;The median blood loss was 140.0 (50.0-600.0) mL, and 4 patients needed transfusion; Median time of abdominal and pelvic drainage was 10.0 (6.0-15.0) days, the median gastrointestinal recovery time was 2.5 (1.0-12.0) days, and the median postoperative hospital stay was 17.0 (10.0-39.0) days;Grade 2 Clavien-Dindo classiifcation (CDC) of surgical complications that required medical intervention were found in 19 cases, CDC grade 3 or above were found in 8 cases;Mild to moderate postoperative ileus happened in 5 cases, all recovered in median 2 (1-4) weeks with supportive treatments;There were no perioperative deaths. All samples were sent to pathological analyses. After a median follow-up of 9 (3-15) months, no complications of or above CDC grade 3 happened, and there were no recurrence. Conclusion:Complete retrograde radical cystectomy in male bladder cancer provided clear anatomical approach, reliable neurovascular bundle preservation, less blood loss, limited abdominal organs disturbance and better surgical exposure; With respect to tumor control, more peritoneal was retained for subsequent abdominal cavity reconstruction. The introduced procedure effectively speeded up gastrointestinal recovery, reduced postoperative complications, especially the incidence of ileus and its severity, and shortened hospital stay. The learning curve of this procedure for urologists was short, and further investigation was warranted.

Objective To evaluate clinical value of denaturing high performance liquid chromatography (DHPLC) used in detecting transforming growth factor beta receptor 3 (TGFBR-3) exons 11 and 12 polymorphism in women with idiopathic premature ovarian failure (POF).Methods From Feb.2009 to Dec.2011,110 patients with idiopathic POF undergoing treatment at Shenzhen Maternal & Child Health Institute affiliated to Southern Medical University were enrolled as POF group in this study.In the mean time,110 women under 40 years old with normal hormonal level and menstrual cycles as control group.The exons 11 and 12 of TGFBR-3 gene polymorphism were screened by using DHPLC,and results of DNA sequencing was as golden standard.Some related indexes were calculated,such as sensitivity,specificity,false negative value,false positive value,Youden index,positive predictive value,and negative predictive value.At the same time,20％ of the tested specimens were chosen randomly and detected by DHPLC again.The value of Kappa index were calculated by comparing the results between the first and second DHPLC analysis.Results The exon 11 of TGFBR-3 were not identified gene polymorphism and two nucleotide polymorphisms were identified in exon 12.For 2022 T/C polymorphism,the frequencies of CC with 0.9％ (1/110),TC with 22.7％ (25/110),TT with 76.4％ (84/110),Cwith12.3％ (27/220) and T with 87.7％ (193/220) in POF group were significantly different from CC with 0,TC with 9.1％ (10/110)and TT with 90.9％ (100/110),C with 4.5％ (10/220) and T with 95.5％ (210/220) in control group (all P ＜ 0.05).Allelic and genotypic frequencies of 2161-75 C/T were not differed significantly between the two groups (all P ＞ 0.05).As DNA sequencing as golden standard,DHPLC showed that the sensitivity was 100％,specificity was 97.9％,Youden index was 97.9％,positive predictive value was 96.3％,negative predictive value was 100％,and Kappa index was 0.888 (P ＜ 0.05).Conclusion DHPLC analysis is higher validity,reliability and practicability method in detecting TGFBR-3 polymorphism in idiopathic premature ovarian failure.

Participating in the National Oral Medical Skills Competition can push forward the teaching reform and curriculum construction,and promote the standardized development of teaching.According to the changes of competition level,rules and content of the National Oral Medical Skills Competition,the selection and training methods have been reformed.By designing the training programs,quantifying the scoring standards,strengthening the oral physician guidance and strengthening the psychological counseling and other trainings,satisfactory results have been achieved.

Objective This research aimed to investigate the function mechanism of lung injury after acute pulmonary embolism.Methods 30 healthy New Zealand rabbits were selected and randomly divided into five groups:control group (with venepuncture applied) and model groups including none-saline (NS) control group,exogenos laptin low doses group,medium dose group and high dose group.ELISA was applied to examine the TNF-αand IL-1β in serum.Results TNF-α and IL-1β content in saline group were higher than that in control group,and the results were statistically significant.In medium dose (50 μg/kg) group,TNF-α and IL-1β levels decreased apparently and the results were statistically significant.In low doses (20 μg/kg) group,TNF-α and IL-1β levels decreased,but the results were not statistically significant.In high dose (100 μg/kg) group,TNF-α and IL-1β levels increased on the contrary.Conclusion Suitable dose of leptin will lead the decrease of postoperative levels of TNF-α and IL-1β after acute pulmonary embolism,which thus have protection function to the injured lung.