目的 探讨肌电生物反馈对正常人脑血流动力学的影响及其变化规律。方法 总数30人的健康正常受试者纳入研究,按照表格法随机分为生物反馈实验组和对照组。其中生物反馈组20人,对照组10人。该试验采用肌电生物反馈作为反馈方法,记录两组试验前后双侧大脑前动脉、大脑中动脉和大脑后动脉的平均血流速度和脉动指数。每次生物反馈试验后间隔3天,作为一个生物反馈阶段,总共进行7个阶段。结果 生物反馈组大脑中动脉的平均血流速度在试验前、后高于对照组(P<0.05),而其脉动指数则低于对照组(P<0.05)。生物反馈组在试验前、后大脑中动脉的平均血流速度随着生物反馈次数的增加而增快(P<0.05),而脉动指数则随之而降低(P<0.05)。结论 肌电生物反馈能够增加正常人大脑中动脉的平均血流速度和降低其脉动指数,且随着生物反馈次数的增加而呈现累积效应。

Objective To discuss the effect of electromyographic biofeedback on cerebral hemodynamics in health people. Methods A total of 30 healthy volunteers were enrolled in this study, and randomly divided into biofeedback group (n=20) and control group (n=10). The biofeedback group had been done with electromyographic biofeedback for seven times with 3 days intervals after each test. The data including the mean velocity (Vm) and pulse index (PI) of anterior cerebral artery, middle cerebral artery (MCA) and posterior cerebral artery were collected bilaterally before and after the test using transcranial Doppler in the two groups. Results The values of Vm (P<0.05) were higher and PI (P<0.05) were lower in biofeedback group than those in control group before and after the test. The values of Vm (P<0.05) increased and PI (P<0.05) decreased gradually in biofeedback group from 1st to 7th tests. Conclusion The electromyographic biofeedback can induce to the increasing of velocity of cerebral blood flow and decreasing of PI in MCA, and the additive effect was observed during the 7 tests in biofeedback group.

目的 对不同周龄的KO小鼠与WT小鼠进行悬尾实验进行观察,探讨KO小鼠与WT小鼠的行为差别。方法 采用健康的试验动物180只分两组:①KO组(4、6、8周龄,各周龄30只,雌雄各半,共90只)②WT组(4、6、8周龄,各周龄30只,雌雄各半,共90只);通过悬尾实验观察性别,年龄对不动时间的影响。结果 同龄KO雌性小鼠比雄性小鼠的静止时间差别不大;随着年龄增大,静止时间增长。 同龄同性别的KO鼠比WT鼠的不动时间长。P<0.05;同龄雄性小鼠比雌性小鼠的不动时间短; 随年龄增长各种系小鼠不动时间增长,KO鼠的不动时间比WT鼠长,P<0.05。结论 KO小鼠存在抑郁行为表型。

Objective To observe tail suspension test in Fmr1 gene knockout mice and to explore whether there are differences in mobility of KO and WT mice. Methods 180 test mice were divided into two groups: ① KO group (4,6,8 weeks old, each age group of mice is 30, male and female in half, a total of 90) ② WT group (4,6, 8 weeks old, each group of mice is 30, male and female on half, a total of 90). Through forced swimming test and tail suspension test to observe gender, age effect on immobility time. Results With the same age of the same sex,the KO mice's immobility time was longer than WT mice's. P<0.05. With the same age,the male mice's immobility time was shorter than female mice's. With the age increase, the immobility time of KO mice was longer than WT mice. P<0.05. Conclusion Fmr1 gene knockout mice have anxiety and depressive behavior.

目的 追踪随访186例甲状腺微小乳头状癌(Papillary Thyroid Microcarcinoma,PMC)患者术后5年及10年的肿瘤复发率、生存率、及术后并发症,探讨不同手术方式对治疗甲状腺微小乳头状癌预后。方法 临床资料为1993—2003年收治的186例甲状腺微小乳头状癌患者,102例行患侧甲状腺大部分切除术(Ⅰ组),84例行患侧甲状腺全切术+峡部切除+对侧甲状腺大部分切除+中央区淋巴结清扫术(Ⅱ组)。结果 Ⅰ组患者术后5年及10年期间肿瘤复发率、生存率与Ⅱ组差别无统计学意义(P﹥0.05),对比I组,Ⅱ组患者术后发生甲状腺及甲状旁腺功能低下的发生率较高,且差别有统计学意义(P﹤0.05)。结论 甲状腺微小乳头状癌预后良好,实行患侧甲状腺大部分切除术对治疗甲状腺微小乳头状癌是安全可行的。

Objective To follow-up 186 cases of papillary thyroid microcarcinoma and analyse their tumor recurrence rate、survival rate and complicationg after 5 and 10 years postoperation, to investigate prognosis of papillary thyroid microcarcinoma from different operation approaches. Methods 186 cases of papillary thyroid microcarcinoma were from 1993 to 2003. All the patients were divided into two groups,102 cases(group Ⅰ) performed with resection of the majority of thyroid gland, and 84 caces(group Ⅱ) performed with total thyroidectomy, thyroidectomy+isthmus thyroidectomy+contralateral thyroid lobectomy+central lymph node ablation. Results The recurrence and survival rates after 5 and 10 years were not significantly different between the two groups, but compared group Ⅰ, the incidences of hypocalcemia and hypothyroidism were higher in group Ⅱ(P<0.05). Conclusion Papillary thyroid microcarcinoma had better prognosis. Resection of the majority of thyroid gland treating papillary thyroid microcarcinoma is safe and feasible.

目的 了解近五年某地市级综合医院传染病病例疫情情况,分析其流行病学特征,为探索医院传染病预防控制工作提供科学依据。方法 采用描述性流行病学方法和Excel 2007软件对传染病疫情报告资料进行分析。结果 2010—2014年法定报告的传染病发病例数基本呈持续上升趋势。2010—2014年共报告传染病11 673例次,发病数居前5位的传染病依次为手足口病、乙型肝炎、梅毒、生殖道沙眼衣原体感染、肺结核,分别占21.17%、12.44%、12.16%、8.51%和7.52%;总死亡数为21例,病死率为1.799‰。5年来,不同传染病发病数呈现出不同的变化趋势。结论 及时掌握当地传染病的发病情况,加强对常见传染病的防控力度,提高病原检测力度,做好传染病的筛查工作,防止传染病在医院内传播。

Objective To analyze the characteristic features of notifiable diseases in a general hospital from 2010 to 2014, and provide basis information for notifiable diseases' prevention and control. Methods Using descriptive epidemiological methods and microsoft Excel 2007, the report data of notifiable diseases was statistically analyzed. Results The number of notifiable diseases increased during 2010 to 2014. 11 673 cases of notifiable diseases were reported in the hospital at the same time.The top five reported cases of notifiable diseases were hand-foot-and-mouth disease(HFMD),hepatitis B virus, syphilis, chlamydia trachomatis infection and tuberculosis, account for 21.17%,12.44%,12.16%,8.51% and 7.52% accordingly. Moreover, there are total 21 death cases have been reported and case fatality rate was 1.799‰.Different infectious diseases showed different trend variation during the above mentioned period. Conclusion We should understand and grasp the local incidence of infectious disease, strengthen the prevention and control, improve the pathogen detection, make an effort on screening, and prevent the spread of infectious diseases in the hospital.

目的 比较腹腔镜前列腺癌根治术(laparoscopic radical prostatectomy,LRP)后发生尿失禁(postprostatectomy incontinence,PPI)与没有发生PPI的患者在尿动力学上的差异,为临床诊疗提供尿动力学依据。方法 对87例LRP术后的患者按术后是否并发PPI分成两组,行尿动力学检查后进行比较分析。结果 PPI组患者术中保留一侧或双侧神经血管束的比例少于非PPI组,且最大尿道闭合压(maximum urethral closure pressure,MUCP)、最大膀胱容量(maximum cystometric capacity,MCC)、排尿时膀胱开口压力和最大逼尿肌压均较非PPI组低。而腹压漏尿点压试验阳性与临床上是否漏尿并不完全相符。多变量回归分析表明,术中保留神经血管束、MUCP和MCC是PPI的相关因素。结论 PPI与LRP术中保留神经血管束、MUCP和MCC独立相关。尿动力学检查能为更精准有效指导临床治疗提供依据。

Objective To compare the urodynamic parameters in men with and without postprostatectomy incontinence(PPI) after laparoscopic radical prostatectomy(LRP). Methods 87 patients of prostatic carcinoma after LRP were divided into two groups according to have PPI or not. After urodynamic study, the data were collected to find the difference. Results Overall, the proportion of preservation of unilateral or bilateral neurovascular bundles(NVBs) during LRP was lower in PPI group than that in non-PPI group. Besides, the patients in PPI group had lower maximum urethral closure pressure (P=0.04), maximum cystometric capacity (P=0.04), detrusor pressure during opening (P=0.02)and maximum detrusor pressure (P<0.001), as compared with those in non-PPI group. In the multivariate logistic regression, the preservation of unilateral or bilateral NVBs, MUCP and MCC were identified as the related factor with PPI. Conclusion PPI is significantly associated with the preservation of unilateral or bilateral NVBs, MUCP and MCC. Urodynamic test can be used to make the treatment for PPI. It will be more accurate and effective in clinical practice.

目的 探讨微泡增强的超声空化增加睾丸组织的药物浓度的可行性。方法 18只雄性8月龄性成熟新西兰兔随机分为空白对照组(C)、单纯微泡组(MB)、治疗超声组(TUS)、超声联合微泡辐照组(MEUS)4组,每组各9个。MB组给予静注微泡造影剂 0.1 mL/kg ;TUS组给予超声辐照5min;MEUS组给予静注微泡造影剂0.1 mL/kg的同时超声辐照5min;每组在治疗前5min均经耳缘静脉注射2%伊文思蓝(EB)2.5 mL/kg;治疗后1 h取各组睾丸组织制备组织匀浆测量 EB 浓度。结果 MEUS组兔睾丸组织内 EB 浓度高于其他各组(P<0.05),差异有统计学意义。结论 微泡增强的超声空化可以明显提高睾丸组织内EB浓度。

Objective To investigate feasibility of microbubbles enhanced ultrasound (MEUS) on the concentration of Evans blue (EB) in rabbit,stestis. Methods Eighteen sexually mature male New Zealand rabbits were divided into four groups randomly. Pulsed ultrasound irradiation and intravenous microbubbles injection were both applied in the microbubbles enhanced ultrasound group (MEUS), pulsed ultrasound irradiation and intravenous microbubbles injection were individually applied in the therapeutic ultrasound group (TUS) and the simple microbubbles group (MB). Injection of EB was applied in each group five minutes before the treatment.Concentration of EB in testis tissue was measured homogenated. Results The concentration of Evans blue(EB) in rabbit's testis in MEUS group was statistically higher than the other groups (P<0.05). Conclusion Microbubbles enhanced ultrasound (MEUS) can increase the concentration of Evans blue (EB) in rabbit's testis.

目的 体外构建胶原—壳聚糖复合支架材料,分析其物理化学性质及生物相容性,探讨其应用于组织工程支架材料的可行性。方法 利用冷冻干燥的方法构建三维多孔的胶原支架材料,通过甲醛交联以及添加壳聚糖的方法改善其物理化学性能。通过体外降解实验以及电镜扫描的方法检测材料的各项物理化学指标;通过细胞接种的方法研究材料的生物相容性。结果 胶原—壳聚糖复合材料通过冷冻干燥的方法,能够获得稳定的三维多孔结构,电镜显示孔隙贯通,体外降解速度降低,并且能够支持细胞生长。理化性质分析显示该结构适合细胞生长,具有良好的生物相容性。结论 本课题体外构建胶原—壳聚糖复合支架材料,满足组织工程生物材料的理化以及生物相容性要求,为其应用于组织工程支架材料提供重要的依据。

Objective We build up the Collagen-Chitosan compound scaffold in vitro,and study the physical,chemical and biological properties,to analyze the feasibility in tissue engineering. Methods The three-dimensional porous scaffold was obtained by freezing-drying method,and optimized by using formaldehyde and Chitosan.We used hydrolysis in vitro and SEM scanning to investigate its physical and chemical properties.The biocompatibility of scaffold was analyzed in MEF cells. Results Collagen-Chitosan compound scaffold we obtained by freezing-drying method was a kind of stable 3D vesicular structure.The scaffold degenerated in decreased velocity in vitro.The physical and chemical properties showed that it was suitable for the cells grow in it,which suggested that it has a good biocompatibility. Conclusion This kind of Collagen-Chitosan compound scaffold is constructed.It's qualified by the physical and chemical properties,and biocompatibility which the biomaterials require.The evidence are important for its application in tissue engineering.

目的 初步探讨微泡增强的脉冲式超声治疗脾创伤出血的作用机制。方法 14只健康家犬随机分为3组,超声微泡组(MEUS组)6只、单纯超声组(TUS组)4只、单纯微泡组(MB组)4只。开腹切割脾建立脾破裂出血模型,MEUS组用脉冲式超声治疗仪辐照伤口,同时静脉匀速推注微泡;TUS组超声治疗时静脉推注生理盐水;MB组超声治疗仪假照的同时静脉推注微泡。治疗完毕,进行超声造影评价,并送病理组织学检查。结果 MEUS组造影示靶区造影增强缺损或者低灌注,但较粗大血管仍为增强显影。病理组织学见脾窦、微小血管扩张充血、血管周围组织水肿,血小板聚集,微小血管血栓形成。结论 微小血管血栓形成、微血管淤血扩张、周围组织水肿压迫是超声联合微泡治疗脾创伤出血的可能机理。

Objective To investigate the mechanism of haemostatic effect induced by microbubble(MB)enhanced therapeutic ultrasound(TUS)on splenic trauma. Methods 14 healthy dogs were divided into 3 groups.Six animals were treated by microbubble-enhanced therapeutic ultrasound(MEUS),the other eight animals were treated with TUS only group(n=4)and the MB only(n=4)served as the controls.The spleens of all animals were surgically exposed and a 20 mm long,5 mm deep incision was created on the spleens using scalpel.Contrast enhanced ultrasound(CEUS)was performed to assess the blocking effects of splenic circulation.The targeted spleens were harvested for pathological examination. Results A non-enhanced or perfusion defect region was formed within the treated area.The histological results showed splenic sinus hyperemia,microvascular hyperemia,perivascular tissue edema,platelet aggregation and intravascular thrombosis. Conclusion The mechanism of haemostatic effect on splenic trauma by microbubble enhanced ultrasound maybe intravascular thrombosis,microvascular hyperemia and perivascular tissue edema oppression simultaneously.

目的 探讨不同用药方案治疗慢性阻塞性肺病所致肺部感染的药物经济学。方法 本次医学研究选择我院2012年1月—2014年1月收治的200例慢性阻塞性肺病所致肺部感染患者为观察对象,随机将其分为A组、B组、C组和D组,A组观察对象接受盐酸莫西沙星治疗,B组观察对象接受硫酸依替米星治疗,C组观察对象接受头孢哌酮钠治疗,D组观察对象接受他唑巴坦钠/哌拉西林钠治疗,回顾分析四组观察对象药物经济学。结果 四组观察对象药物敏感度对比差异有统计学意义(P<0.05),而临床治疗效果和不良反应发生率对比则差异无统计学意义(P>0.05)。结论 慢性阻塞性肺病所致肺部感染患者接受C方案治疗,具有理想的临床效果和较高的药物经济学效率。

目的 设计并验证适合Beckman AU5811全自动生化分析仪试剂针和搅拌棒的交叉污染分析方法,找到产生的原因并制定有效的污染避免措施。方法 以反应盘内圈项目(ALT、TBIL、GGT、ALB、TBA、LDH1、CK、Cr、GLU、CO2、TC、HDL-C、APOA1、Ca 、Fe、Cu、HCY 、AFU、PA)作为实验项目,按设计的检测顺序进行交叉污染实验,各项目间的污染率以不超过95%～105%为判断标准。结果 内圈项目中TC、HCL-C对TBA分别存在试剂针和搅拌棒的污染,Ca对Cr存在搅拌棒的污染,Cu对Fe存在试剂针的污染,GGT、ALB、LDH1对CO2都有搅拌棒的污染,TC、TBIL对Cu也存在搅拌棒的污染。结论 采用该方法能有效快速地对Beckman AU5811生化分析仪上的所有项目进行交叉污染实验,确定交叉污染产生的关联项目并采取污染避免措施减少交叉污染,保证检验结果的准确。

Objective To design and verify an analytical method for the cross contamination of Beckman AU5811 automatic biochemical analyzer's reagent needle and stir bar and find the reasons, and make effective measures to avoid contamination. Methods Use the inner ring items (ALT,TBIL,GGT,ALB, TBA,LDH1,CK,Cr,GLU,CO2,TC,HDL-C,APOA1,Ca,Fe,Cu,HCY,AFU,PA) as theexperiment objects and do the cross contamination experiment according to the test order. The standard for the cross contamination level is limited to 95-105% among all items. Results TC and HCL-C were found to have contaminated TBA both in reagent needle and stir bar model, Ca contaminated Cr in the stir bar model; Cu contaminated Fe in the reagent needle model; GGT,ALB and LDH1 contaminated CO2 in stir bar model; TC and TBIL contaminated Cu in the stir bar model. Conclusion The method used in this experiment can effectively identify and analyze the cross contamination of all the items in Beckman AU5811 automatic biochemical analyzer. In addition, it can help to adopt corresponding measures to reduce cross contamination.