Pattern-reversal electroretinograms and visual evoked potentials in branch retinal vein occlusion

We recorded pattern electroretinograms and visual evoked potentials in a group of selected patients with unilateral uncomplicated branch retinal vein occlusion. To document the effects of preexisting risk factors, patients were divided into three groups: diabetes mellitus, hypertension with hyperlipidemia and no systemic disease. The transient and steady-state pattern electroretinogram and visual evoked potential amplitudes were significantly reduced and visual evoked potential peak times were delayed relative to the fellow eyes and agematched normal subjects. There was a second amplitude reduction relative to the other patient groups in both the affected and fellow eyes of the diabetes mellitus group, which was indicative of an additive effect of diabetes mellitus.Abbreviations BRVO branch retinal vein occlusion     

氯胺酮对脑缺血大鼠突触体ATP酶活力的影响

目的 研究氯妥酮（ＫＴ）对大鼠脑缺血ＡＴＰ酶活性变化的影响。方法 采用大鼠四动脉阻断脑缺血模型，缺血１０ｍｉｎ后测量纹状体和海马突触体Ｎａ＾＋、Ｋ＾＋－ＡＴＰ和Ｃａ＾２＋－＝ＡＴＰ酶活性。结果 脑缺血时两个脑区的ＡＴＰ酶活性均显著下降。缺血的前预先应用ＫＴ２５ｍｇ．ｋｇ＾－１和５０ｍｇ．ｋｇ可拮抗脑缺血时ＡＴＰ酶活性的下降。结论 ＫＴ可通过拮抗脑缺血时ＡＴＰ酶活性的下降对抗脑缺血损伤。     

慢性肝病患者血清和腹水肿瘤坏死因子—α检测的临床意义

目的：了解慢性肝病患者血清和腹水肿瘤坏死因子－α检测的临床意义。方法：采用双抗体夹心ＥＩＳＡ法，对２０例慢迁肝、２０例慢活肝和２９便肝硬化代偿期病人血清ＴＮＦ－α进行检测；对２１例肝硬化腹水无自发性腹膜炎（ＳＢＰ）者、２３例肝硬化腹水并ＳＢＰ者、２５例肝癌腹水者和２４例胃肠癌腹水者进行血清和腹水的ＴＮＦ－α检测。结果：血中ＴＮＦ－α水平在下列各组疾病呈逐渐上升（慢迁肝组〈慢活肝组和肝硬化代偿期组〉     

狼疮抗凝物质45例临床分析

本文报道从1985年7月到1993年12月检出有狼疮抗凝物质患者45例,有血栓栓塞现象14例,占31.11％。我们就其病种、临床表现、实验室检查、治疗及预后进行分析。     

对－苯二甲酸衍生物的合成及其诱导分化HL－60细胞的活性

作者合成了１３个对－苯二甲酸衍生物，其中有９个化合物尚未见文献报道。通过对ＨＬ－６０细胞诱导分化活性试验，发现有两个化合物在浓度为５×１０￣（－６）ｍｏｌ／Ｌ时，可使细胞分化率达５５％，低于维Ａ酸的分化率（７９％，１０￣（－７）ｍｏｌ／Ｌ）。     

隐动脉筋膜蒂的交腿皮瓣修复小腿严重软组织缺损

目的探讨一种小腿严重软组织缺损的修复方法。方法以健侧隐动脉为蒂的顺行或逆行交腿皮瓣修复患侧小腿软组织缺损。结果本组8例均有效地覆盖受区创面,随访三个月,皮瓣全部成活。结论该皮瓣不牺牲小腿的重要血管,质地与受区相似,方法简单易行,血运可靠,血管蒂长,是修复小腿严重软组织缺损的较好方法。     

果胶酶治疗胃石症的临床研究

目的 探讨胃石症的发病机制。分析和总结果胶酶治疗胃石症的疗效。方法 在体外将山楂，柿子嚼碎后置入新鲜胃液，分为加白酒和不加白酒两组后放入37℃恒温箱内，观察胃石形成的经过及时间，再分别加入果胶酶，观察其解聚过程及时间，对54例胃石症患服用果胶酶治疗并观察疗效。结果 加白酒组形成胃石的速度较快，果胶酶能有效溶解胃石。54例患服用果胶酶6h后吞钡透视见胃石完全消失，症状，体征完全缓解。结论 果胶酶能有效溶解胃石。是治疗胃石症的有效方法。     

舰船员慢性荨麻疹与马拉色菌相关性研究

OBJECTIVE: To investigate the association of Malassezia furfur with chronic urticaria in the crew members of ships. METHODS: A comparative mycological study of 126 crew members of ships with chronic urticaria and 45 normal control subjects was carried out. The 82 urticaria patients identified as positive for Malassezia furfur were divided into groups A and B to receive treatment with antihistaminics (group A) and antihistaminics combined with 2% ketoconazole shampoo(group A). RESULTS: The carrier rates of Malassezia furfur were significantly higher in urticaria patients than in the normal control subjects (P<0.01), but in view of the case ratios of the final cure or improvement, no significant difference was observed between the two groups by the end of the treatment courses (P>0.05). But 6 to 8 weeks from the end of the treatment course, better therapeutic effect was noted in group B (P<0.01), with higher rate of negative Malassezia furfur findings (P<0.01). CONCLUSION: Malassezia furfur may play an important role in the prevalence of chronic urticaria among the crew members, and anti-fungal treatment may produce better long-term therapeutic effect.     

重症SARS的X线影像表现

目的探讨重症严重急性呼吸综合征(SARS)的X线表现.方法回顾性分析37例重症SARS患者的一系列X线胸片变化规律.结果重症SARS患者胸片表现为两肺阴影迅速进展,大部分区域受累.有3种表现类型:①19例表现为弥漫大片云雾状影,病灶无明显分界,肺纹理显示不清;②13例表现为弥漫棉团状密影,边缘模糊,肺纹理增粗;③5例表现为多发大团块密影,边缘模糊,可见支气管气相.如无合并症发生,对症治疗有效,1个月左右肺部阴影消失.6例肺部合并G-杆菌感染,5例合并纵隔气肿,出现合并症时,肺部阴影延迟吸收.结论重症SARS患者的X线影像为肺部密影快速进展至两肺大部分区域,易合并纵隔气肿及肺部感染.     

Effects of Vagal and Sympathetic Nerves on Transmembrane Potential of Cardiac Ventricular Cells of Toad

The effects of vagal and sympathetic nerves on the transmembranepotentials of cardiac cells of toad were observed by means of microelectrodetechnique.The vagal nerve was stimulated there would be an increase in restingpotential and acceleration in repolarization of action potential(AP).However,ifatropine was used before stimulation the above-mentioned phenomena woulddisappear.When the sympathetic nerve was stimulated the AP amplitudeincreased,but resting potential(RP)remained the same.The increase of APresulted from the increases of overshoot.When the sympathetic nerve wasstimulated although the heart rate increased and the duration of AP wasshortened,the plateau phase of AP was prolonged.These results suggest that theeffects of vagal and sympathetic nerves on the transmembrane potential of cardiacventricular cells are coordinated and the normal characteritics of transmembranepotential are maintained by both the vagal and sympathetic nerves.