B超诊断肝脓肿52例分析

目的 探讨肝脓肿的B超诊断价值。方法 回顾性分析52例肝脓肿的声像图表现。结果 肝脓肿在不同的病理时期有其不同的声像表现特点。结论 B超可动态观察肝脓肿的病理演变,并能作出准确的定位,为临床治疗提供依据。     

炎症性肠病的原因及发病机制的进展

迄今为止 ,炎症性肠病 (ＩＢＤ)的特异性致病因素及发病机制尚不完全明了 ,随着免疫学、遗传学、分子生物学的迅速发展及动物模型制作方法的日趋完善 ,认为本病是由多因素相互作用所致 ,主要包括感染、免疫、遗传、及精神心理等因素。1　感　染临床上一直怀疑某些细菌与ＩＢＤ的首次发作有关 ,但未被证实。最近 ,有些动物模型显示在肠道无菌状态下 ,不能诱发与ＩＢＤ相似的肠道炎症 ,提示细菌与ＩＢＤ的发生相关。目前 ,类结核分支杆菌在克隆病中的作用已受到极大关注。另一引人注目的研究是 ,用动物模型证实克隆病可能由一种能透过滤膜的微…     

急性重症病毒性心肌炎4例临床分析

近年来 ,病毒性心肌炎的发病逐渐增多 ,少数心肌严重损害可出现心源性休克、心力衰竭、重症性心律失常 ,若诊治及时绝大多数预后良好 ,仅少数出现扩张型心肌病。现将我科1993年 1月— 1999年 12月收住的 4例重症病毒性心肌炎的诊治体会报告如下。1　病例介绍例 1,男 ,6 1岁 ,农民 ,因发作性晕厥 4ｈ于 1998年 4月 9日入院。近 1个月来反复感冒史。入院时Ｔ 36 .4℃ ,Ｐ 5 0 /ｍｉｎ ,ＢＰ 10 .0 / 6 .0ｋＰａ,双肺听诊无异常 ,心率 5 0 /ｍｉｎ ,心律齐 ,第一心音明显低钝 ,未闻及杂音 ;腹软 ,肝脾肋下未及 ;双下肢无水肿。心电图示 :窦缓、…     

基于最大熵模型和地理信息系统的苍术生态适宜性及品质区划

目的：对全国范围内的野生苍术进行生态适宜性和品质区划,为苍术的栽培选址和优质生产提供科学指导。方法：采用文献搜集的方法收集近30年与苍术分布和挥发油含量相关的研究数据,用最大熵模型（MaxEnt）和地理信息系统（GIS）对野生苍术生态适宜性进行区划,并对苍术的适宜种植区和品质形成区进行预测。结果：1）野生苍术最适宜分布区主要集中在燕山山脉、太行山脉、陕北高原南部、秦岭山脉、伏牛山区、大巴山区、桐柏山区、大别山区、茅山周边及黄山周边地区;2）合格野生苍术（苍术素含量>0.30%）最适宜分布区集中在湖北省中部的大洪山、河南省与湖北省交界处的桐柏山和大别山区、安徽省中部的张八岭和江苏省南部的茅山山区至上海的大部分地区,其中大别山区的野生苍术品质差异较大。结论：MaxEnt和GIS对野生苍术生态适宜性分布区预测结果可靠有效。生态环境因子并不是影响苍术品质形成的唯一决定因素,生产合格苍术药材需要有优良的种质资源,以及合适的生态种植环境,如林下、林缘或田间作物套种等。     

山茛菪碱和中药联合治疗血栓性静脉炎1例

山茛菪碱和中药联合治疗血栓性静脉炎１例文／刘云娥，赵增宝１病例男，４２岁，教员，患静脉曲张＞１０年，右下肢踝关节以上皮肤瘀斑＞１年。体检：右下肢大隐静脉曲张、变硬，局部皮温较高，可见暗红色皮肤色素沉着。按之皮下血管有结节。诊断：血栓性静脉炎。治疗：山...     

Murine antibody against E2 can capture hepatitis C virus in vitro

目的　寻找可能存在的抗丙型肝炎病毒 (HCV)感染的中和抗体。方法　构建两个分别含HCVE1和E2抗原基因的真核表达载体 ,用瞬时表达法检测其在哺乳动物细胞中的表达。将构建的载体连同IL 2基因一起经皮下给BalB/c小鼠进行注射 ,然后用ELISA法检测特异性抗体产生情况。最后通过研究抗体和病毒间的相互作用分析基因免疫诱导产生的抗血清在体外与HCV的相互作用情况。结果　经过基因免疫的小鼠分别产生了E 1和E2抗体。其中 ,用含E2基因的质粒载体免疫的小鼠所产生的E2抗血清不仅可以免疫沉淀来源血清中的HCV病毒颗粒 ,而且可以和与来源株非相关的HCV病毒颗粒相互作用。结论　我们的研究表明基因免疫诱导小鼠产生的E2抗体可以和HCV病毒颗粒发生交叉反应 ,这使我们看到了诱导产生具有广泛针对性的E2抗体的希望。     

Apolipoprotein E polymorphism in the early onset of coronary heart disease

Objective To assess the relationship between apolipoprotein E (apoE) polymorphism and the early onset of coronary heart disease (CHD) and the effect of apoE on lipids and lipoproteins in healthy Chinese subjects. Methods Sixty-eight patients with CHD younger than 55 years (CHD1), 136 patients with CHD older than 65 years (CHD2), and 136 healthy subjects were enrolled, and their plasma levels of triglyceride (TG), total cholesterol (TC) and high density lipoprotein cholesterol (HDL-C) were determined. The apoE genotypes were identified by polymerase chain reaction-restriction fragment length polymorphism.Results apoE 3/4 genotype and E4 allele frequency in the CHD1 group were higher than those in the CHD2 group and healthy subjects, while no differences were found between CHD2 and healthy subjects. Meanwhile, the plasma levels of TC and low density lipoprotein cholesterol (LDL-C) were higher in the CHD2 group than in both CHD1 group and healthy subjects.Each apoE isoprotein has variable TC and LDL-C levels that is E2 (E2/2+E2/3)＜E3(E3/3)<E4(E4/4+E3/4). Conclusion apoE is one of the genetic factors that affect TC and LDL-C levels, and apoE 4 has a very close relation to CHD, suggesting that apoE 4 is an independent genetic factor of the early onset of CHD.     

Clinical and familial study of arrhythmogenic right ventricular cardiomyopathy

Objective　To explore the characteristics of arrhythmogenic right ventricular cardiomyopathy (ARVC). Methods　Seven patients with arrhythmogenic right ventricular cardiomyopathy and 34 members of three families were studied. All patients and family members underwent history collection, clinical examination, electrocardiogram (ECG), two-dimensional echocardiography (2-DE) and a signal averaging electrocardiogram. Programmed ventricular stimulation was performed in five patients. Results　All patients and family members had normal morphologic characteristics and normal function of the left ventricular by 2-DE. Fourteen persons had abnormal findings indicating ARVC. Five had enlargement of the right ventricular with diffused hypocontractility, eight had thin and systolic bulging in the focal anterior wall with hypokinesia and one had bulging of the inferior wall. Twenty-five persons (seven patients and 18 family members) had abnormal findings in ECG. Positive ventricular late potential was recorded in 13 persons (six patients). Two to three monomorphic ventricular tachycardia (VT) with left bundle branch block (LBBB) configurations were induced in five patients. Ventricular fibrillation was induced in two patients during the electrophysiologic study (EPS). Five patients had very high pacing threshold and/or ineffective pacing in one or many regions of the right ventricle. Two members of one family died suddenly. One member was a dwarf with ARVC. Spontaneous VT with a left bundle branch block (LBBB) configuration was recorded in five patients, polymorphic VT with extremely short coupling interval in one, and premature ventricular complexes with LBBB configuration in 12 (six patients). Conclusion　Our familial study strongly suggests that ARVC may be a hereditary disease and it is helpful in the diagnosis and detection of ARVC. The most common manifestations were abnormal structure and function of the right ventricle and abnormal ECG of repolarization and ventricular arrhythmia which originates from the right ventricle.     

33例慢型克山病心电图分析

我国已无急型、亚急型及慢型急性发作新病例出现。现将我们在全国克山病重点监测地区陕西省黄龙县克山病普查中发现的33例慢型克山病患者的心电图加以整理和分析．结合文献评价心电图在慢型克山病普查中的价值。     

医学微生物学二段式教学改革

我们将医学微生物学教学改为二个阶段进行 ,第一阶段 :基础医学微生物学教学 ,安排在基础课后期进行 ,主要讲授医学微生物学的基础理论和基础知识。第二阶段教学为临床微生物学 ,安排在临床教学中后期 ,由微生物学教研室、传染科、内科、检验科等联合主办。即解决与临床脱节问题 ,又通过多学科联合教学解决各学科之间内容的衔接问题