鞘内注射吗啡加可乐定对切口痛大鼠脊髓背角蛋白激酶A催化亚单位表达的影响

Objective To observe the effect of intrathecal clonidine plus morphine on expression of protein kinase A (PKA) catalytic subunit in the spinal dorsal horn in a rat model of incisional pain. Methods Eighty male Sprague-Dawley rats were divided randomly into five groups: sham group, control group, pre-incisional morphine 2.5 μg group, pro-incisional clonidine 5 μg group and preincisional morphine 2.5 μg plus clonidine 5 lag group (n=16). lntrathecal catheter and the model of incisional pain were pro-duced according to Yaksh and Brennan's described method respectively. Changes of pain behavior were assessed by mechanical with-drawal threshold (MWT) and thermal withdrawal latency(TWL). The expressions of PKA catalytic subunit in the spinal dorsal horn were assessed by immunohistochemical method and western blotting analysis. Results Compared with sham group, MWT and TWL in control group were decreased significantly at 2 h after incision (P<0.01) and the number of positive cells and protein expression of PKA catalytic subunit in the spinal dorsal horn were increased significantly in control group (P<0.01). Compared with control group, MWT and TWL in pre-incision morphine 2 μg plus clonidine 5 lag group were increased significantly at 2 h after incision (P<0.01) and the number of positive cells and protein expression of PKA catalytic subunit in the spinal dorsal horn were decreased significantly in pre-incision morphine 2 μg plus clonidine 5 μg group (P<0.01). However, MWT, TWL and the number of positive cells and pro-tein expression of PKA catalytic subunit in the spinal dorsal horn changed with no statistical significance in pre-incisional morphine 2.5 μg group and pre-incisional clonidine 5 μg group compared with control group. Conclusion lntrathecal clonidine significantly enhances the antinociceptive effect of intrathecal morphine in a rat model of incisional pain, which might be associated with inhibi-tion of the increased expression of PKA catalytic subunit in spinal cord.     

发挥远程教育优势推进医学继续教育发展

《教育部关于加强高校网络教育学院管理提高教学质量的若干意见》中强调指出：高校网络教育学院要以在职人员的继续教育为主，要充分发挥网络教育的优势，为在职人员更新知识、增强技能、不断学习、不断提高提供良好的服务。然而，要使医学院校在开展继续教育中发挥更大的作用，推进医学继续教育的发展，远程教育不仅是解决这一问题的有效途径，而且将成为开展医学继续教育的强大动力。     

脾破裂保守治疗20例的体会

目的探讨脾破裂在临床上保守治疗的价值。方法回顾性收集并分析20例脾破裂患者的临床资料。分析临床脾破裂保守治疗的价值。结果20例脾破裂患者保守治疗治愈出院。结论脾破裂在一定程度上可保守治疗，从而避免脾切除手术及影响免疫功能。     

腹膜转移瘤的影像学诊断

目的探讨腹膜转移瘤的影像学表现特点。方法回顾性分析经手术及穿刺活检证实的35例腹膜转移瘤的影像学表现,并与手术结果对照,35例做CT平扫及增强扫描,5例行MR I检查。结果(1)腹膜转移瘤常表现为大量腹水(22/35);(2)腹膜结节状增厚(23/35);(3)大网膜饼形增厚(16/35)和大网膜污垢样改变(12/35);(4)肠系膜污垢样改变(12/35)及结节状改变(9/35);(5)腹腔单发或多发囊性改变,有占位效应(4/35)。结论CT/MR I是发现腹膜转移灶的重要影像学方法。     

间接免疫荧光法检测婴幼儿急性下呼吸道合胞病毒感染的特异性IgM

本文对1984年1～3月和1985年3～8月共107例急性下呼吸道感染的住院患儿,采用间接免疫荧光法检测其急性期血清抗RSV特异性IgM抗体,并与病毒分离和/或中和试验比较,敏感性为82.1％,特异性为71.8％。RSV感染患儿发病后3天内大多数病例即可从血清中检测出RSV-IgM,因此该法具有早期诊断价值。     

结石性重症急性胆管炎T管和PTCD引流疗效研究

报道３６例结石性ＡＣＳＴＴ管（Ａ组）和ＰＴＣＤ（Ｂ组）疗效，探讨ＡＣＳＴ最佳引流方式。结果发现：引流后４８～７２ｈＡ组ＢＴＰ、ＴＢ、ＧＰＴ、ＷＢＣ显著低于Ｂ组，胆汁引流量高于Ｂ组。Ａ组中毒症状改善、体温和白细胞降低、黄疸减退明显优于Ｂ组。两组死亡率无显著性差异。作者认为ＰＴＣＤ仅仅在ＡＣＳＴ早期可起到减压作用，对肝内胆管结石ＡＣＳＴ和ＡＣＳＴ超过４８ｈ者应选择Ｔ管引流。     

重症肌无力血清抗乙酰胆碱受体抗体和抗突角前膜抗体监测的…

用ＡＢＣ－ＥＬＩＳＡ法对５０例重症肌无力（ＭＧ）病人血清中抗乙酰胆碱受体抗体（ＡｃｈＲａｂ）和抗突触前膜抗体（ＰｒＭａｂ）进行检测，结果发现，（１）ＭＧ患者抗体总阳性３７例（阳性率７４％），其中ＡｃｈＲａｂ阳性３３例（６６％），ＰｒＭａｂ２９例（５８％），二者均显示重症患者阳性率高于轻症。（２）血清中两种抗体滴度重症患者均明显高于轻症，胸腺肿瘤ＡｃｈＲａｂ滴度明显高于胸腺增生病例，抗体滴度与胸腺病     

硝酸钾盖髓的初步观察

硝酸钾盖髓的初步观察杜泰桓，谷正华，王孝廉为观察硝酸钾盖髓剂的临床疗效，现总结２２８例患者的治疗情况，报道如下。病例选择及方法：本组共２２８人，年龄１０～４４岁。共治疗２４８颗恒牙，其中双尖牙２８例，磨牙２２０例。深龋患牙有１９１例；另有５７例去龋后...     

镍钛记忆合金网状支架置入的术前准备及配合

前列腺增生症是老年男性常见病之一,镍效的方法,对并发其他疾病的高龄患者尤为适合,我院自1996年采用镍钛记忆合金网状支架治疗前列腺增生症25例,效果满意,现介绍如下.1 临床资料本组25例,年龄最大89岁,最小71岁,平均年龄79岁.其中并发冠心病5例,慢性支气管炎、肺心病、