脊神经节神经元周围突至肾及体壁的分支投射

实验将快蓝(FB)和核黄(NY)分别注入大鼠左肾纤维膜下及左体壁神经干内,结果在荧光镜下发现左T_(9-13),L1脊神经后根节(DRG)内存在双标记细胞,提示大鼠T_(9-13),L1段DRG内的部分神经元的周围突分支支配肾及体壁,为肾绞痛所致牵涉痛的解释,提供了神经解剖学基础。     

人牙周韧带生物力学的体外研究

作者在研究人牙周韧带的形态结构特点的基础上，应用生物软组织微机图像视频测量系统测试了其拉压力学性质．探讨了牙周韧带形态结构与力学性质的关系，分析了牙周韧带力学性质的非线性和应力应变关系的区域特性及其临床意义。     

乳癌根治术后并发臂丛神经损伤

乳癌根治术是治疗乳腺癌的主要手段,但并发臂丛神经损伤的报道却很少,总结从1989年10月～1991年2月华山医院诊治的9例,3例门诊治疗,6例住院治疗。其中5例行神经松解后,皮瓣或肌皮瓣转移覆盖神经瘢痕区。随访到8例,疼痛改善3例,感觉和运动改善2例,疗效不理想,认为寻找预防措施是减少乳癌根治术后臂丛损伤的根本办法。     

3，4－二羟基苯乙酮对家兔缺血－再灌心肌的影响

以超微结构、线粒体形态计量及ＬＤＨ，ＳＯＤ活性为依据，探讨３，４－二羟基苯乙酮（ＤＨＡＰ）对家兔缺血－再灌心肌细胞的影响。结果表明：ＤＨＡＰ组缺血－再灌心肌细胞的损伤、ＬＤＨ丢失及ＳＯＤ活性下降的程度均明显低于未用药组。提示该药物对缺血－再灌心肌有保护作用。     

FasL的表达在结直肠癌免疫逃逸中的意义

目的研究结直肠癌中Fas配体（FasL）的表达及其在结直肠癌免疫逃逸中的意义。方法采用免疫组织化学染色法，检测80例结直肠癌组织中FasL表达及肿瘤浸润淋巴细胞（TIL）的数量。应用原位杂交法，检测80例结直肠癌组织连续切片的FasL的。RNA的表达。采用脱氧核糖核酸末端转移酶介导的缺口末端标记技术（TUNEL），对80例结直肠癌组织中凋亡的TIL及肿瘤细胞进行观察。结果80例结直肠癌组织FasL表达程度不等，不论是在同一组织切片不同部位或两组织切片间相比，FasL表达程度和范围都不均匀。FasL的mRNA的表达部位与FasL蛋白的表达部位相对应。FasL表达程度高的组织的TIL计数低于FasL表达低的组织（P〈0．05），同时其TIL凋亡指数高于FasL表达低的组织，而结直肠癌细胞的凋亡指数低于FasL表达程度低的组织（P〈0．01），TIL凋亡指数与胃癌细胞的凋亡指数呈负相关（r=-0．631，P〈0．01）。结论全占直肠癌细胞可通过表达FasL，诱导TIL发生凋亡，反击机体免疫系统，这可能是结直肠癌免疫逃避的重要机制之一。     

腹腔感染病人引流管的应用

外科引流的概念形成于公元前15世纪,但真正的外科引流是由Hippocrates和Celsus用导管开始的。1859年Chassaignac介绍了软橡皮管的应用,1882 年Kehrer把纱布放在橡皮管内,以避免粘连,即第一根烟卷引流。1895年Kellogg描述了目前的双套管吸引引流的前身。1989年Heaton发现了负压吸引引流或称为“主动引流”。此后,Yates在1905年发表的一篇经典论文中,提出“从物理学和生物学角度看, 引流整个腹腔是不可能的”,目前,这个观点还未受到明显的质疑。     

深低温储皮后其抗原性改变的免疫学研究

以人皮和豚鼠皮新鲜及－１９６℃冷冻皮片匀浆做为抗原，研制出兔抗人和豚鼠的新鲜及－１９６℃冷冻皮片匀浆的可溶性蛋白高效价的免疫血清，并通过免疫电泳、火箭免疫电泳、免疫火箭扩散电泳及单相免疫扩散电泳等不同免疫学电泳的检测，分别对新鲜皮片及－１９６℃冷冻皮片抗原性改变的这一现象进行探讨与研究。结果表明：人皮、豚鼠皮其新鲜皮片的抗原成份、抗原决定簇及抗原量均显著高于相应的－１９６℃冷冻组皮片，因而证实了通过深低温冷冻的皮片其抗原性低于新鲜皮片的论断。     

大肠癌肝转移射频消融后局部复发影响因素的分析

目的 探讨射频消融（radiofrequency ablation,RFA）治疗大肠癌肝转移后局部肿瘤复发的风险因素。方法 回顾性研究213例347个肿瘤实施RFA治疗后局部复发的临床资料,对可能影响RFA局部治疗效果的临床因素进行统计学处理。结果 175例（82.2%）298个肿瘤（85.9%）得到CT或MRI随访资料。大肠癌肝转移灶RFA后肿瘤局部复发率为36.9%（110/298）,局部复发的平均时间为16.4月（2～57个月）。单因素分析显示肝脏转移灶的部位、大小和射频针类型与肿瘤射频后的局部复发相关（P值分别为P=0.000,P=0.021和P=0.026）,但Cox多因素分析则显示只有瘤大小和转移灶部位是大肠癌肝转移射频消融后局部复发的独立预后因素（χ^2=8.522,P=0.000;χ^2=1.321,P=0.022）。结论 肝脏肿瘤的大小和部位是RFA治疗效果的独立影响因素,正确的电极选择和布针是获得肿瘤完全坏死的关键。     

Sympathetic skin response in patients with myasthenia gravis★ A comparative analysis

BACKGROUND: The examination of sympathetic skin response is an important index for assessing the autonomic nerve function, and patients with myasthenia gravis are always accompanied by dysautonomia. Therefore, it will be important to know whether sympathetic skin response can be used as the index for the clinical evaluation of myasthenia gravis. OBJECTIVE: To investigate the diagnostic value of sympathetic skin response in the damage of autonomic nerve function of patients with myasthenia gravis. DESIGN: A case-controlled comparative observation. SETTING: Department of Neurology and Room of Nerve Electromyogram, the Affiliated Hospital of North Sichuan Medical College. PARTICIPANTS: Thirty outpatients or inpatients with myasthenia gravis were selected from the Department of Neurology, the Affiliated Hospital of North Sichuan Medical College from May 2006 to May 2007, including 9 males and 21 females, aged 8–72 years with a mean age of (28±5) years old. They were all accorded with the diagnostic standards of myasthenia gravis, accompanied by different severity of autonomic nerve symptoms, including poor skin nutrition, sweating of hands and feet, pyknocardia, persistent hypotension, abdominal pain, constipation, etc. They all had not taken any drug affecting the autonomic nerve function before the examination. Informed consents were obtained from all the patients. Meanwhile, 30 healthy physical examinees were enrolled as the normal control group, including 10 males and 20 females, aged 10–75 years with a mean age of (31±5) years old. Approval was obtained from the hospital ethic committee. METHODS: After admission, the patients were examined with sympathetic skin response using DANTEC keypoint 2.0 electromyography evoked potential apparatus (Danmark). The changes of the latency and wave amplitude of sympathetic skin response were observed. The subjects in the normal control group were examined with the same methods at physical examination. Abnormality was judged by the disappearance of wave form, latency longer than that in the normal control group by Mean±2.5SD, or wave amplitude lower than the average value in the normal control group by 50%. MAIN OUTCOME MEASURES: The results of the latency and wave amplitude of sympathetic skin response were compared between the patients with myasthenia gravis and normal controls. RESULTS: All the 30 patients with myasthenia gravis and 30 healthy physical examinees were involved in the final analysis of results. There were no significant differences between the left and right upper and lower limbs in both the myasthenia gravis group and normal control group (P > 0.05). In the myasthenia gravis group, the abnormal rate of sympathetic skin response was 37% (11/30), the latency was prolonged and the wave amplitude was decreased as compared with those in the normal control group, and there were significant differences (P < 0.01). CONCLUSION: Sympathetic skin response can be used as an electrophysiological index for judging the damages of autonomic nerve function in patients with myasthenia gravis.     

女性尿瘘的治疗体会(附13例报告)

目的　探讨女性尿瘘的诊治,对巨大复杂的膀胱尿道阴道瘘的手术修补法进行探讨。方法　经阴道修补膀胱阴道瘘4例, 尿道阴道瘘3例,膀胱尿道阴道瘘2例,经腹阴道联合途径修补复杂性女性尿瘘4例,其中输尿管阴道瘘1例。结果　一次性修 复痊愈率(甲级)达84.6%、有效率(乙级)达92.3%。结论　术前仔细检查及评估手术方案是缩短手术时间、减少术中创伤的重 要环节,精细的外科手术技巧是确保手术成功的关键,经腹阴道联合手术途径修补术是治疗巨大复杂女性尿瘘的有效方法。