BACKGROUND: Dopaminergic neurons differentiated from neural stem cells have been successfully used in the treatment of Parkinson's disease rats; however, the survival rate of transplanted cells has been low. Most cells die of apoptosis as a result of the formation of oxygen free radical and lipid peroxidation.OBJECTIVE: To observe resveratrol (Res) effects on survival of transplanted cells, transplanted efficacy and dopaminergic differentiation from neural stem cells in a rat model of Parkinson's disease.DESIGN, TIME AND SETTING: Randomized controlled animal experiments were performed at the Animal Experiment Center,Sun Yat-sen University from October 2007 to June 2008.MATERIALS: Thirty-two adult, healthy, male Sprague Dawley rats were equally and randomly assigned to model control, dopaminergic neuron, Res and combination groups. Four healthy Sprague Dawley rat embryos at gastational days 14-15 were selected and fetal rats were used for isolation and culture of neural stem cells. Res (Jingmal Biotech, Shenzhen, China) was used for this study.METHODS: Neural stem cells derived from the mesencephalon of embryonic rats were isolated and cultured in vitro, and passaged in serum-free culture medium containing epidermal growth factor and basic fibroblast growth factor, and then differentiated into dopaminergic neurons in differentia.ion medium. Parkinson's disease rat models were established by the injection of 6-hydroxydopamine in each group. Rats in the dopaminergic neuron group was injected with 3 pL cell suspension (1×10 cells/μL) containing dopaminergic neurons in the corpus striatum. Rats in the Res group received 3 μL of Ras (40 mg/L).Rats in the combination group were subjected to 3 μL of Res (40 mg/L) + 3 μL cell suspension (1×105 calls/μL) containing dopaminergic neurons. Rats in the model control group received 3 ×L of DMEM/F12 culture medium.MAIN OUTCOME MEASURES: The percentage of tyrosine hydroxylase-positive neurons in differentiated cells. The alteration of rotational asymmetry and the survival of tyrosine hydroxylase-positive neurons in graft areas of Parkinson's disease rats after transplantation.RESULTS: Flow cytometry demonstrated that survival rate of tyrosine hydroxytase-positive neurons was (17.8 ±4.2)% at 6 days following differentiation. Compared to the model control group, the rotational asymmetry was significantly improved at 10 days (P < 0.01), was significantly decreased at 20 days following transplantation in the combination group (P < 0.01). At 10-60 days following transplantation, the number of rotational asymmetry was significantly lower in the combination group than in the dopaminergic neuron group (P < 0.01). Tyrosine hydroxylase-positive neurons were not determined in the Res and model control groups. The number of tyrosine hydroxylase-positive neurons was significantly more in the combination group than in the dopaminergic neuron group (P < 0.01).CONCLUSION: Res can increase survival rate of transplanted cells in the corpus striatum, and improve rotational asymmetry in rat models of Parkinson's disease following transplantation of dopaminergic neurons differentiated from neural stem cells.Ke CL, Chen BL, Yu ZH, Huang ZS.Effects of resveratrol on the transplantation of neural stem call-derived dopaminergic neurons in a rat model of Parkinson's disease.Zhongguo Zuzhi Gongcheng Yanjiu yu Linchuang Kangfu. 2009;13(27): 5281-5285.[http://www.crter.on http://en.zglckf.com]

Objective To observe the therapeutic effect of acupuncture combined with rehabilitation on dysphagia after stroke at differentstage. Methods According to the randomized trial principle, 155 cases were divided into two groups: control group (n=80) and observationgroup (n=75). The control group was treated with rehabilitation training, and the observation group was treated with acupuncture and rehabilitationtraining, 5 times every week for 4 weeks. The two groups were assessed by TCM swallowing assessment scores and Kubota testbefore and after treatment. Results According to Kubota test, the total rate was 66.67% in the control group and 89.33% in the observationgroup with a significant difference between the groups (P<0.001). In the observation group, the total rate was 90.48% at acute stage and88.89% at the convalescence stage with a significant difference (P<0.01). According to TCM swallowing assessment, the total rate was64.00% in the control group and 74.67% in the observation group with no significant difference between the groups (P<0.05). In the observationgroup, the total rate was 90.48% at acute stage and 68.52% at the convalescence stage with a significant difference (P<0.001). ConclusionAcupuncture combined with rehabilitation facilitates to improve the swallowing function in stroke patients following dysphagia especiallyat acute stage.

BACKGROUND/AIMS: The past decades have seen increasing incidence and prevalence of inflammatory bowel disease (IBD) in China. This article aimed to summarize the current status and characteristics of surgical management for IBD in China. METHODS: We searched PubMed, Embase, and Chinese databases from January 1, 1990 to July 1, 2014 for all relevant studies on the surgical treatment IBD in China. Eligible studies with sufficient defined variables were further reviewed for primary and secondary outcome measures. RESULTS: A total of 74 studies comprising 2,007 subjects with Crohn's disease (CD) and 1,085 subjects with ulcerative colitis (UC) were included. The percentage of CD patients misdiagnosed before surgery, including misdiagnosis as appendicitis or UC, was 50.8%±30.9% (578/1,268). The overall postoperative complication rate was 22.3%±13.0% (267/1,501). For studies of UC, the overall postoperative complication rate was 22.2%±27.9% (176/725). In large research centers (n>50 surgical cases), the rates of emergency operations for CD (P=0.032) and in-hospital mortalities resulting from both CD and UC were much lower than those in smaller research centers (n≤50 surgical cases) (P=0.026 and P <0.001, respectively). Regarding the changes in CD and UC surgery over time, postoperative complications (P=0.045 for CD; P=0.020 for UC) and postoperative in-hospital mortality (P=0.0002 for CD; P=0.0160 for UC) both significantly improved after the year 2010. CONCLUSIONS: The surgical management of IBD in China has improved over time. However, the rates of misdiagnosis and postoperative complications over the past two decades have remained high. Large research centers were found to have relatively better capacity for surgical management than the smaller ones. Higher quality prospective studies are needed in China.
Appendicitis ; Asian Continental Ancestry Group ; China* ; Colitis, Ulcerative ; Crohn Disease ; Diagnostic Errors ; Emergencies ; Hospital Mortality ; Humans ; Incidence ; Inflammatory Bowel Diseases* ; Outcome Assessment (Health Care) ; Postoperative Complications ; Prevalence ; Prospective Studies

BACKGROUND/AIMS: The past decades have seen increasing incidence and prevalence of inflammatory bowel disease (IBD) in China. This article aimed to summarize the current status and characteristics of surgical management for IBD in China. METHODS: We searched PubMed, Embase, and Chinese databases from January 1, 1990 to July 1, 2014 for all relevant studies on the surgical treatment IBD in China. Eligible studies with sufficient defined variables were further reviewed for primary and secondary outcome measures. RESULTS: A total of 74 studies comprising 2,007 subjects with Crohn's disease (CD) and 1,085 subjects with ulcerative colitis (UC) were included. The percentage of CD patients misdiagnosed before surgery, including misdiagnosis as appendicitis or UC, was 50.8%±30.9% (578/1,268). The overall postoperative complication rate was 22.3%±13.0% (267/1,501). For studies of UC, the overall postoperative complication rate was 22.2%±27.9% (176/725). In large research centers (n>50 surgical cases), the rates of emergency operations for CD (P=0.032) and in-hospital mortalities resulting from both CD and UC were much lower than those in smaller research centers (n≤50 surgical cases) (P=0.026 and P <0.001, respectively). Regarding the changes in CD and UC surgery over time, postoperative complications (P=0.045 for CD; P=0.020 for UC) and postoperative in-hospital mortality (P=0.0002 for CD; P=0.0160 for UC) both significantly improved after the year 2010. CONCLUSIONS: The surgical management of IBD in China has improved over time. However, the rates of misdiagnosis and postoperative complications over the past two decades have remained high. Large research centers were found to have relatively better capacity for surgical management than the smaller ones. Higher quality prospective studies are needed in China.
Appendicitis ; Asian Continental Ancestry Group ; China* ; Colitis, Ulcerative ; Crohn Disease ; Diagnostic Errors ; Emergencies ; Hospital Mortality ; Humans ; Incidence ; Inflammatory Bowel Diseases* ; Outcome Assessment (Health Care) ; Postoperative Complications ; Prevalence ; Prospective Studies