Study on mechanism of huanshao dan in brain protectionΔin brain protectionΔ

Objective: To observe the behavioral and biochemical effects of a traditional Chinese medicine Huanshao Dan (HSD) on learning and memory deficits in transient cerebral ischemia model in mice.Methods: Step-through experiments, receptor binding test and choline acetyltransferase (ChAT) activities determination were performed.Results: Mice undertaken transient ischemia commited much more mistakes in step-through experiments and showed relatively higher³ H-MK801 binding in cerebral cortex and hippocampus than in sham operated animals. HSD decoction was most effective in reducing these mistakes in mice. At the same time, and³ H-MK801 binding of cerebral cortex and hippocampus tissues were also significantly decreased, while ChAT activities in the same tissues were increased.Conclusion: HSD might antagonize ischemic injury of brain through inhibition of glutamate N-methyl-D-Aspartic acid receptor overactivity. ΔThis program was supported by National Nature Science Foundation of China (No.39421012)     

氯胺酮对不完全性脑缺血的保护作用

目的：观察氯胺酮对兔不完全性脑缺血后神经损害后果的影响，并探讨其可能的作用机制。方法：１２只家兔随机分为两组。缺血对照组（组Ⅰ，只数＝６），氯胺酮组（组Ⅱ，只数＝６），组Ⅱ用氯胺酮２５ｍｇ／ｋｇ静脉注射和５０ｍｇ／ｋｇ肌肉注射作前处理。采不同时相动脉血分别测定血浆ＴＮＦ、ＮＡ、Ａ的水平。结果：缺血３０分钟组Ⅱ血浆ＴＮＦ、ＮＡ、Ａ浓度显著低于组Ⅰ（Ｐ＜０．０５），神经损害的后果及与卒中有关的死亡率，组Ⅱ也较组Ⅰ明显改善。结论：用氯胺酮前处理可以明显改善不完全性兔脑缺血的神经学损害，其机制可能与氯胺酮拮抗缺血期中枢ＮＭＤＡ受体和抑制外周儿茶酚胺释放，降低ＴＮＦ水平有关。     

电解可脱性弹簧圈血管内栓塞治疗颅内动脉瘤

目的 探讨颅内动脉瘤血管内栓塞治疗的效果及栓塞技术要点。方法 应用微导管技术,在数字减影血管造影（DSA）监视下,对颅内动脉瘤行血管内栓塞治疗。结果 用电解可脱性弹簧圈（GDC）成功栓塞183例188个动脉瘤,痊愈182例,死亡1例。结论 血管内栓塞治疗颅内动脉瘤是一种安全、可靠、有效的治疗手段。     

针药合用治疗周围性面瘫146例

针药合用治疗周围性面瘫１４６例安徽省颍上县人民医院（安徽２３６２００）黄子英１９７０～１９９５年，笔者采用针药合用治疗周围性面瘫１４６例，疗效满意，现总结如下。临床资料１４６例均属门诊患者，参照《针灸学》（上海针灸学院编．北京：人民卫生出版社，１９７...     

辨证治疗中风病248例临床分析

本文通过对２４８例中风病临床分型分析，以气虚血瘀证最多，占３８．３１％，其次为阴虚风动证，肝阳暴亢，风火上扰证。本组病人不论是出血性中风，还是缺血性中风，均采用中药辨证治疗基础上，口服中成药及静脉滴注活血化瘀针剂以加强活血化瘀、涤痰通络这一治疗法则，总有效率为８４．２７％，其中出血性中风和缺血性中风的总有效率分别为８６．９５％和８３．２４％，对血液流变学、脑出血患者治疗前后脑ＣＴ对照观察，认为 一     

Cerebral venous sinus thrombosis

Cerebral venous sinus thrombosis is a challenging condition because of its variability of clinical symptoms and signs. It is very often unrecognised at initial presentation. All age groups can be affected. Large sinuses such as the superior sagittal sinus are most frequently involved. Extensive collateral circulation within the cerebral venous system allows for a significant degree of compensation in the early stages of thrombus formation. Systemic inflammatory diseases and inherited as well as acquired coagulation disorders are frequent causes, although in up to 30% of cases no underlying cause can be identified. The oral contraceptive pill appears to be an important additional risk factor. The spectrum of clinical presentations ranges from headache with papilloedema to focal deficit, seizures and coma. Magnetic resonance imaging with venography is the investigation of choice; computed tomography alone will miss a significant number of cases. It has now been conclusively shown that intravenous heparin is the first-line treatment for cerebral venous sinus thrombosis because of its efficacy, safety and feasability. Local thrombolysis may be indicated in cases of deterioration, despite adequate heparinisation. This should be followed by oral anticoagulation for 3-6 months. The prognosis of cerebral venous sinus thrombosis is generally favourable. A high index of clinical suspicion is needed to diagnose this uncommon condition so that appropriate treatment can be initiated.     

三七皂甙对脑组织血液供应和能量代谢的影响

目的研究三七皂甙（ＰＮＳ）对脑组织血液供应和能量代谢的影响。方法采用激光多普勒流量仪动态监测软脑膜微循环的变化以及反相高效液相法测定脑组织中高能磷酸化合物的含量。结果ＰＮＳ２５、５０ｍｇｋｇ－１ｉｖ明显扩张麻醉小鼠软脑膜微血管，增加局部血流量，加快血流速度；但对结扎双侧颈总动脉引起的脑血流量的减少没有作用。ＰＮＳ（５０、１００ｍｇｋｇ－１ｉｐ，×３ｄ）明显延缓缺血组织ＡＴＰ的分解，改善能量负荷。结论ＰＮＳ可通过增加组织血液供应改善能量代谢，从而保护脑组织。     

妊高征患者的胎儿血流速度波形改变特点研究

目的：研究妊高征患者的胎儿脐动脉、肾动脉以及大脑中动脉的血流速度波形的变化特点。方法：妊高征患者９６例，正常妊娠１４８例，于产前１周内行彩色多普勒超声检测胎儿脐动脉、肾动脉和大脑中动脉的搏动指数（ＰＩ），产后随访新生儿预后。结果：随着妊高征的加剧，胎儿脐动脉和肾动脉的ＰＩ上升，大脑中动脉的ＰＩ则改变不明显。在围产儿预后良好和不良的两组中，随着妊高征的加重，胎儿脐动脉、肾动脉和大脑中动脉的ＰＩ均有上升的趋势，但预后不良组的改变比对照组明显。按正常妊娠和轻度、中度、重度妊高征分成４组，胎儿窘迫者脐动脉和肾动脉的ＰＩ上升，大脑中动脉的ＰＩ下降。结论：妊高征和胎儿窘迫对胎儿脐动脉和肾动脉的血流波形改变有协同作用，对大脑中动脉的改变有阻抗作用     

Restrictive effect of puerarin on myocardial infarct area in dogs and its possible mechanism

It has been known that puerarin can protectthe ischemic myocardia. Puerarin might achievesuch protection by decreasing heart rate and dilatelug vessels in the acute phase. A lot of studieshave been conducted on these mechanisms, but thelong--term mechanism was yet to be elucidated andthe effect of puerarin on coronary collateral circula.non was not reportedL" 2]. The purpose of thisstudy was to investigate the protection of puerarinon ischemic myocardia and the effect of puerarin oncoronary co…     

Cerebral venous sinus thrombosis: a clinical study of 23 cases

Objective To describe the etiologies, clinical features and diagnosis of cerebral venous sinus thrombosis.
Methods We reviewed the records of 23 patients admitted with a documented diagnosis of c erebral venous sinus thrombosis from 1991 through 1999 in the Beijing Tiantan Hospital.
Results Infection was the major condition associated with cerebral venous sinus thrombos is. Pseudotumor cerebri syndrome was the most common manifestation, while hemip legia, seizure and unconsciousness may occur alone or in association. The diagn ostic sensitivity of computed tomography (CT), magnetic resonance imaging (MRI) and digital subtract angiography (DSA) were 59%, 86% and 100%, respectively. Th e sensitivity of MRI with magnetic resonance angiography (MRA) reached 96%.
Conclusion As the clinical findings were found to be nonspecific, CT combined with DSA, or MRI with MRA turns out to be valuable for the early diagnosis of cerebral venous sinus thrombosis.