心理社会因素对医学生自信水平的影响

目的寻找影响医学生自我评价的有关因素,为提高他们的自信程度提供参考.方法采用个人评价问卷(PEI)、应付方式 问卷、症状自评量表(SCL-90)及一般情况调查表(自制)对450医学生进行调查.结果性别、身高、体重、班委、恋爱、母亲文化程度、父亲健康状况、 家庭经济状况,解决问题、求助等因素与PEI量表总分呈显著正相关,SCL-90各因子呈显著 分和总均分及自责、幻想、退缩、合理化与PEI量表总分负相关.结论医学生的自我评价受到自身心理状况、应付方式、家庭状况等因素的影响.     

不同门奇断流术式对门静脉高压症犬食管下段血管再生的影响

Objective To explore the effect on blood vessel regeneration of distal esophagus in ca-nines of portal hypertension with liver cirrhosis after different procedures with paraesophagastrie devascular-ization. Methods Portal hypertension models were produced in canines by subcutaneous injection of 60% CC14 combined with food restriction. Forty eight model canines were randomly divided into 4 groups: group A, traditional paraesophagastrie devascularization;group B, selective paraesophagastric devascularization;group C, paraesophagastric devascularization plus distal esophageal transaction and reanastomosis with sta-pler;group D,control group. Every group had 12 canines which were randomly divided into A1 ,B1 ,C1 ,D1, A2,B2,C2 and D2 groups after the operation. Canines in groups A1 ,B1 ,C1 and D1 were executed at first month after the operation,and those in groups A2, B2, C2 and D2 were executed at the 6th month after the operation. The distal esophagus was segmented when the canines were executed. The upside and downside of the stoma in group C were distinguished and signed as Ca and Cb. Immunohistochemieal methods were used to detect VEGF,CD34 and FVⅧ-Rag,blood vessel-related factors,in lower esophagus. Results The expres-sion levels of VEGF and CD34 MVD,FⅧ-Rag MVD in groups A1 ,B1 and C1 were lower than those in group D1 one month after the operation (P <0.05). All the indices in group B1 were lower than those in groups A1 and Clb,but higher than those in group Cla (P <0.05). The indices in group Cla were lower than those in group C1b (P < 0.05 ). The indices in groups A2 and B2 were higher than those in groups A1 and B1, re-spectively at the 6th month after the operation (P <0.05). They were higer in outer membrane in group C1a than in group C2a (P <0.05). The indices in group C2b were higher than those in group Clb (P<0.05). Conclusion At the first month after operation, the expression of blood vessel-related factors was declined in three different procedures of paraesophagastric devascularization,which indicated that all three different pro-cedures could diminish the vessels in distal esophagus. The effect in group C was most obvious among all groups. At the 6th month after traditional paraesophagastrie devascularization and selective paraesophagastrie devascularization, the expression of blood vessel-related factors in distal esophagus was declined. But there were no significant changes in the expression of blood vessel-related factors in distal esophagus after parae-sophagastric devascularization plus distal esophageal transaction and reanastomosis with stapler. It indicated that the blood vessel regeneration in paraesophagastric devascularization pins distal esophageal transaction and reanastomosis with stapler was inferior to that in other procedures.     

积雪草总苷对环磷酰胺致小鼠免疫功能低下的影响

目的 探讨积雪草总苷（TCA）对环磷酰胺（CTX）致小鼠免疫功能低下的影响。方法采用一次性腹腔注射CTX 100mg／kg制造小鼠免疫损伤模型，同时应用TCA24、12、6mg／kg 3个剂量灌胃10d进行预防性治疗，观察其对小鼠胸腺指数、脾脏指数、巨噬细胞吞噬百分率、血清溶血素水平等指标的影响。结果 TCA高剂量（24mg／kg）、中（12mg／kg）剂量对小鼠胸腺指数、吞噬百分率和血清溶血素水平有明显的增强作用，同时TCA高剂量对小鼠脾脏指数也有一定的保护作用。结论TCA对CTX致小鼠免疫功能低下有一定的预防作用。     

高频电灼治疗慢性泪囊炎的疗效分析

目的：探讨高频电灼治疗慢性泪囊炎所致鼻泪管阻塞的治疗效果。方法：临床治疗46例51只眼慢性泪囊炎病人。随访完整资料36例40只眼。结果：高频电灼法近期(两周)有效率97．5％，长期有效率为(三个月)为77．3％。结论：高频电灼治疗慢性泪囊炎是一种简便可靠，疗效满意的方法。     

大鼠吸入EHFV气溶胶后体内抗原抗体的动态观察

本次试验研究表明:实验大白鼠吸入EHFV气溶胶后第5天部份实验鼠血中即可检测到EHFV抗原,14天后EHF抗原全部消失,病毒血症可持续7天左右;第7天肺组织中可检测到EHF抗原其IF强度和病毒感染滴度亦随感染时间而增高。EHF抗原阳性的肺组织中IgA水平显著高于EHF抗原阴性的肺。肺组织中IgA的增高可能有促进EHFV的感染,这对研究EHFV气溶胶感染提供了一定的科学依据。     

强迫症的局部脑血流动态显像研究

目的　探讨强迫症患者各脑叶的代谢状态及脑功能异常与其发病的关系。　　方法　采用单光子发射计算机扫描 (SPECT)技术 ,对未服药的 2 2例强迫症患者于静息及症状诱发状态下行局部脑血流 (rCBF)动态显像研究。　　结果　 1 8例有rCBF异常 ,表现为皮层内局限性放射性分布稀疏、缺损区 ,异常脑叶主要为顶叶、额叶、颞叶 ,并发现脑功能异常与强迫症状的严重程度及药物治疗反应有关。　　结论　大脑顶叶、额叶等脑叶的功能异常是部分强迫症发病的神经病理学基础     

拉祜族小学生集体性自杀8例报告

拉祜族小学生集体性自杀８例报告顾明志，黎世泽，李光华，李凤琼，刘克礼，姚坚，肖建玲报告一起罕见的小学生集体性自杀事件，以期引起有关部门关注。８例有自杀行为者皆系女性，均为拉祜族。其中１３岁１例。１２岁５例，１１岁１例，９岁１例。乡村小学三年级学生７例...     

拉祜族小学生集体自杀8例

报告一起罕见的小学生集体自杀事件,以期引起有关部门关注并提供深入研讨的线索。 资料来源 线索资料来自云南思茅地区公安处。笔者走访了地、县、乡有关部门具体处理此案的同志并深入自杀者住地乡、村核实资料。     

心理社会因素对医学生自信水平的影响

目的：寻找影响医学自我评价的有关因素，为提高他们的自信程度提供参考。方法：采用个人评价问卷（PEI）、应付方式问卷、症状自评量有（SCL－90）及一般情况调查表（自制）对450例学生进行调查，结果：性别、身高、体重、班委、恋爱、母亲文化程度，父亲健康状况，家庭经济状况，解决问题，求助等因素与PEI量表总分量呈显著正相关，SCL－90各因子呈显著分和总均分及自责，幻想，退缩，合理化与PEI量表总分负相关。结论：医学生的自我评价受到自身心理状况，应付方式、家庭状况等因素的影响。     

云南澜沧战马坡村拉祜族民俗宗教与自杀现状调查

目的 :了解拉祜族自杀情况 ,初步从民俗宗教方面分析自杀原因 ,为进一步干预提供依据。方法 :用半结构式的访谈提纲在七寨随机选择拉祜族 5 1人 ,用个人深入访谈方式和专题小组讨论方法进行了探索性调查。结果 :拉祜族对自杀持否定态度 ;战马坡村拉祜族自杀率高 ,原因以恋爱有关的问题居首 ;模仿学习 ,民俗宗教可能是重要的影响因素