Harmful Effects of MSG on Function of Hypothalamus—Pituitary—Target Gland System

It has been demonstrated that neonatal administration of monosodium glutamate(MSG)results in a clearly defined lesion of the arcuate nucleus(AN)of the hypothalamus.The present study shows that fat was accumulated in the abdomen of male rats treated with MSG;weights of the body,pituitary and testis were lower;β-EP content in hypothalamus decreased while L-EnK content increased;serum LH,FSH,TSH,GH and TS levels all decreased in varying degrees while serum PRL level significantly increased.The cAMP content lowered in pituitary,but nor in testes;clear histological changes occurred in testicular tissue;Se-GSH-Px activity in both testis and adrenal gland lowered while LPO level significantly increased.Both Se-GSH-Px activity and LPO level in liver increased.These results indicate that MSG is harmful to the function of the hypothalamus-pituitarytarget system of neonatal rats.     

经腋腔扩充后置入硬膜外导管连续臂丛神经阻滞

为满足复杂性上肢手术的麻醉维持,我科选择性采用经腋腔扩充后置入硬膜外导管行连续臂丛神经阻滞58例,效果良好,现报告如下。资料本组58例均为男性,年龄22～35岁。体重50～72kg。手术种类有多手指、掌骨骨折切开复位、肌腱吻合28例,多手指畸形矫正植皮5例,尺桡骨骨折切开复位内固定、肌腱、血管、神经吻合21例,前臂骨筋膜室综合征4例。     

大鼠大脑新皮质组织移植后免疫组织化学及辣根过氧化物酶追踪…

采用孕１５－２７天的Ｗｉｓｔａｒ大鼠胎脑新皮质组织移植到同种幼鼠大脑新皮质的相应区。分别于术后７，１５，３０，６０，１５０天应用免疫组织化学和辣根过氧化物酶追踪观察移植物存活，生长分化及其与宿主脑的整合和神经纤维联系的相关性。     

肘部尺神经半脱位的解剖学和流行病学研究

目的：研究肘部尺神经半脱位的发生原因及其临床意义。方法：对１００侧成人尸体肘部的尺神经位置进行解剖观察；在人群中随机调查了８５４位正常人肘部尺神经的位置。结果：肘管深度为７．１±０．１４ｍｍ（χ±ｓχ）。解剖观察发现，６侧肢体的尺神经在屈肘时发生半脱位，肘管深度平均为４．８ｍｍ。８５４位正常人肘部尺神经半脱位发生率为８．９％（７６／８５４）。结论：绝大多数的肘部尺神经半脱位是先天性的。肘部尺神经半脱位不一定是肘部尺神经卡压的发病原因。     

巨大食管粘膜下神经鞘瘤1例

巨大食管粘膜下神经鞘瘤１例肖大伟，林开荣，孙淑明，林莹食管粘膜下神经鞘瘤非常少见，国外只有少数病例报告，国内未见明确报告，我院于１９９５年６月收治１例，现报告如下。［病例］女，４８岁。因吞咽梗阻１６个月，加重４月余，以食管肿瘤入院。Ｘ线钡餐检查：钡剂...     

干细胞概念教学

目的:学术交流,总结教学经验,提高学识和教学水平。方法:查阅文献,讲解要点,交流体会。结果:培养关注干细胞研究的兴趣,提高认识水平。结论:干细胞概念尚在发展,关注其研究进展,及时交流具有重要意义。     

神经内窥镜下三脑室底造瘘术治疗25例梗阻性脑积水的疗效观察

目的：观察神经内窥镜下三脑室底造瘘术治疗梗阻性脑积水的疗效。方法：单神经内窥镜下三脑室底造瘘术治疗有高颅压症状的梗阻脑积水25例，观察患者症状缓解情况，手术时间，拆线时间，住院时间，结果：所有患者术后临床症状，体征均有不同程度好转，术后影像学检查有改善者24例，无明显变化者1例，25例中有3例术后出现并发症，包括发热1例，颅内感染1例，一过性外展神经麻痹1例，结论：单纯神经内窥镜三脑室底造瘘术治疗梗阻性脑积水手术损伤小，术后康复较快，可缩短住院时间，减少治疗费用。     

Long-term result of guided nerve regeneration with an inert microporous polytetrafluoroethylene conduit

Thedevelopmentinmicrosurgicaltechniqueshasgreatlyimprovednervefunctionalrecovery .However ,owingtotheinabilitytocoaptateandsuturethousandsofnervefiberstotheirfunctionallysimilarnervefibersandinaccuratesutureofthenervestumps ,regeneratednervefiberspartiallylosethechancetoselectivelyregrowintotheirtargetendoneurialtubes,1 4whichresultsinaninevitablemismatchofmotorandsensorynervefibers .Thus,thecontact guidance basedmicrosurgicalnerverepairhasfailedtoachieveconsistentsatisfactoryfunctionalrecover…