日本血吸虫单克隆抗独特抗体NP30对山羊的保护性免疫作用

目的 观察日本血吸虫克隆抗独特型抗体ＮＰ３０主动免疫对山羊的保护性免疫作用。方法 将２２只山羊随机分为两组：（１）实验组：１２只,每只山羊 ＮＰ３０的免疫剂量为１０００μｇ／次,后腿肌肉注射,连续免疫３次,最后１一８周进行尾蚴攻击。（２对照组：１０只,肌肉注射ＳＰ２／０４腹水。尾蚴攻击感染后第１２ 睛死。结果 ＮＰ３０主动免疫山羊可放 减虫率,肝组织减弱率为３５．８３％,粪减卵率为２５％,并可明显     

Study on Pulmonary Surfactant of Sudden Death of Infant

Objective To find the pathogenesis of sudden infant death syndrome (S IDS) from changes of pulmonurry surfactant. Methods By means of thin-layer ckromatography technique, surfactant in whole lung specimens of 10 infants with SIDS and 10 control infants without SIDS (dead of nonrespiratory diseases ) were examined qualitatively and quantitatively. Results Eleven components in pulmonary surfactant were examined qualitatively, including lysophosphatidylcholine , sphingomyelin , phosphatidylcholine , phosphatidylserine , phosphatidylinositol , phos phatidylethanolamine , phosphatidylglycerol , diphosphatidylylycerol , phosphatidic acid, cholesterol and neutral lipids. Quantitative examination showed that the amount of surfactant of whole lung specimens in sudden death group [-(8.9±1.0) rng/g wet lung weight] was significantly less than that in control group [-(12. 6±1.4) mg/g uet lung weight, P＜0. 01]. Qualitative variance showed that the percentages of phosphatidylcholine (49. 4 % ± 2. 0 % ) and phosphatidylylycerol ( 2. 6 % ± 0. 7 % ) decreased markedly in sudden death group compared with those in control group (61.5 % ± 3. 0 % and 4.3 % ±1. 5%, P ＜ 0. 01 ). Conclusion Before death there is serions defect on metabolism of pulmonary surfactant in sudden death infants, with the amount decreasing and the ratio of its components being disturbed, which is one of the important pathogenies of SIDS.     

家兔骨生长诱导修复腭裂骨缺损的实验研究

目的　研究评价牛骨形成蛋白 (b BMP) -白蛋白 -成纤维细胞生长因子 (b FGF)复合材料修复腭裂骨缺损的可行性。方法　建立家兔腭骨缺损模型 ,将固化的 b BMP-白蛋白 - b FGF复合材料植入骨缺损区 ,通过其骨诱导作用 ,诱导新骨生成 ,修复骨缺损。经 X线、组织学观察和钙含量测定。结果　 b BMP-白蛋白 - b FGF有很强的骨诱导作用 ,可以诱导骨形成 ,实验组与对照组 X线骨修复分数评估分别为 12分 ,0分 ,组织学检查实验组骨修复完成 ,而对照组无骨修复 ,钙含量测定也有显著性差异。。结论　 b BMP-白蛋白 - b FGF复合材料可诱导修复腭骨缺损 ,有良好的临床应用前景。     

β—淀粉样蛋白及D—半乳糖对大鼠学习记忆和胆碱酯酶活性？…

目的观察β-淀粉样蛋白(β-amyloid,Aβ)、D-半乳糖及两种药物联合使用时对大鼠学习记忆和大脑皮层胆碱酯酶活性的影响.方法D-半乳糖腹腔注射[50mg/(kg@d)],连续6周.在腹腔注射的第4周末,双侧海马内各注射Aβ1μl(含量为4μg).手术后2周,对各组大鼠进行开场行为、Y-型迷宫、被动回避测试及大脑皮层胆碱酯酶活性的测定.结果与对照组相比,D-半乳糖组、Aβ组、D-半乳糖加Aβ组大鼠的自主行为、学习记忆能力和大脑皮层胆碱酯酶的活性明显下降,尤其D-半乳糖加Aβ组明显.结论D-半乳糖、Aβ对大鼠的行为及中枢胆碱能系统均有明显抑制作用,二者联合作用时能产生更强的作用.     

神经精神狼疮26例临床分析

目的 了解神经精神狼疮（ＮＰＬＥ）的临床特征及治疗转归。方法 回顾１９９２～１９９８年在本院风湿科诊治的２６例神经精神狼疮的临床资料。结果 ２６例ＮＰＬＥ患者５０％在起病１年内发病,有器质性脑病综合征１１例,脑血管意外２例,癫痫４例,狼疮性头痛２例,精神症状或精神病７例。１９例重症ＮＰＬＥ中,１２例给予甲基强的松龙冲击加免疫抑制剂治疗后１０例病情缓解,２例死亡;７例单用甲基强的松龙冲击治疗者４例缓     

High Expression of Insulin-like Growth Factor Ⅱ (IGF-Ⅱ) Using Bac-to-Bac Expression System

Ｈｕｍａｎｉｎｓｕｌｉｎ ｌｉｋｅｇｒｏｗｔｈｆａｃｔｏｒ Ⅱ (ＩＧＦ Ⅱ )ｉｓａ 6 7ａｍｉｎｏａｃｉｄｓｉｎｇｌｅ ｃｈａｉｎｐｅｐｔｉｄｅ ,ｗｈｉｃｈｉｓｉｎｖｏｌｖｅｄｉｎｆｅｔａｌｇｒｏｗｔｈａｎｄｄｅｖｅｌｏｐ ｍｅｎｔ[1] .Ｔｈｅｇｒｏｗｔｈ ｐｒｏｍｏｔｉｎｇｐｒｏｐｅｒｔｉｅｓｏｆＩＧＦ Ⅱ ,ａｓｗｅｌｌａｓｔｈｅｉｒｓｔｒｕｃｔｕｒａｌｈｏｍｏｌｏｇｙｔｏｐｒｏｉｎｓｕｌｉｎａｎｄＩＧＦ Ⅰａｒｅｒｅｆｌｅｃｔｅｄｉｎｔｈｅｎａｍｅｏｆｔｈｅｐｅｐｔｉｄｅｓ .Ｉｔｉｓａｌｓｏｈｅｌｐｆ…     

Identification of peptides presented through the MHC-II of dendritic cells stimulated with Mycobacterium avium

Mycobacterium avium (M. avium) represents a species of concern, because of its ability to modulate the host’s innate immune response, and therefore influence trajectory of adaptative immunity. Since eradicative response against mycobacteria, and M. tuberculosis/M. avium, relies on peptides actively presented on a Major Histocompatibility complex-II (MHC-II) context, we assessed paradoxical stimulation of Dendritic Cell resulting on immature immunophenotype characterized by membrane minor increase of MHC-II and CD40 despite of high expression of the pro-inflammatory tumor necrosis factor alpha (TNF-α) and interleukin-6 (IL-6) in supernatants. Identification of M. avium leucine rich peptides forming short α-helices shutting down Type 1T helper (Th1), contribute to the understanding of immune evasion of an increasingly prevalent pathogen, and may provide a basis for future immunotherapy to infectious and non-infectious disease.     

硫酸奈替米星注射液与硫酸丁胺卡那注射液临床疗效及安全性的比较

为评价硫酸奈替米星的临床疗效及安全性,在１７０例急性细菌感染性病人中作多中心临床研究。结果显示：硫酸奈替米星的有效率（９５．３％）显著高于对照药硫酸丁胺卡那的有效率（８４．１％）,试验组病人咳痰和腰痛症状的平均下降显著高于对照组;硫酸奈替米星治疗后细菌清除率达９７．２％;２组病人不良反应发生率均为４．８％,对照组中有２例（３．２％）出现耳鸣、１例（１．６％）听力减退,但试验组病人用药后未发现听力异常。结论：硫酸奈替米星临床疗效优于硫酸丁胺卡那且较少耳毒性。     

老年患者肾移植（附10例报告）

为探讨老年患者肾移植的临床疗效,分析自１９９０年６月至１９９７年６月期间１０例６０ｙ以上肾移植受者的临床资料。结果表明：术后发生急性排斥反应２例。发生各种并发症７例。４例死亡,分别死于肺部感染、脑出血、脑梗死和急性坏死性胰腺炎。术后１、３、５ａ的人／肾存活率分别为９０％／９０％、８０％／８０％、６０％／６０％。认为年龄已不再是老年尿毒症患者选择手术的障碍,老年患者同样可以安全地接受肾移植并获得满意的疗效。并发症所致的患者带肾死亡是移植失败的主要原因。严格选择手术适应证,移植前原发疾病和合并症的积极治疗,免疫抑制剂的合理应用以及术后并发症的积极防治对提高老年肾移植的长期存活率具有重要的意义。     

海绵窦的断层标本与MRI对照研究

为海绵窦的影像学和神经外科学提供基础资料。利用３５具三维头颅断层标本,１０３例正常三维头颅ＭＲＩ对照研究了海绵窦的位置、形态和内容。结果：海绵窦为颅中窝两层硬脑膜构成的硬脑膜窦,前端达眶上裂,后端达颞骨岩部尖。颈内动脉和脑神经Ⅵ位于海绵窦内,脑神经Ⅲ～Ⅴ位于海绵窦外侧壁内,这些神经与颈内动脉之间有恒定的位置关系,脑神经Ⅲ和Ⅳ位于颈内动脉外上,Ⅴ１和Ⅵ位于颈内动脉外侧稍下,Ⅴ２位于海绵窦外下角。在ＭＲＩ上,海绵窦静脉间隙呈稍低信号,脑神经呈点状或不规则形稍高信号。结论：ＭＲＩ能较好地显示海绵窦的详细解剖,与断层标本相一致,以经过蝶鞍中部的冠状位显示最佳。