孕妇传染病血清流行病学监测报告

孕妇传染病血清流行病学监测报告郝宗宇，张涛，吕家锐，张爱梅，付玉生，武林，姜艳玲，王华钦，孟淑霞，王广科，徐曼莉，郝应平，芦素莲，赵红英，赵妮出生缺陷是世界各国政府和人民都极为重视的一大社会问题，优生优育是提高国民素质的重要保证。但许多病原生物因素无...     

大鼠脂肪干细胞复合胶原-壳聚糖-硫酸软骨素三维支架构建组织工程软骨

Objective To evaluate the character of the collagen-chitosan-chondroitin sulfate scaffold seeded with rat adipose tissue-derived stromal cells. Methods A dipose tissue were harvested from 6 weeks old Wistar rats and the stromal cells were harvested by type Ⅰ collagenase and then cultured in vitro. Type Ⅰ collagen was fully mixed with chitosan, freeze-dried and cross-linked with chondroitin sulfate, then freeze-dried again and sterilized by ethylene oxide. The pore diameter, water content, porosity of the scaffold were tested. The adipose tissue-derived stromal cells were digested, seeded into the plates, scaffold, and cen-trifuged into pellet, and then induced into cartilage. MTT detection for cell proliferation was done. After 3 weeks, the cell morphology, and cell proliferation and adhesion were observed, and chondrngenic differenti-ation was also analyzed. Results The pore diameter, water content, porosity tested for the scaffold showed an appropriate form. Cell proliferation showed faster in the scaffold and pellet culture system after 5 day, there was still cell proliferation in the scaffold system after 14 days but no obvious changes in the pellet cul-ture system; ceils on the scaffold proliferated densely showed by histological staining, but there was a scaf-fold structure residues in the inner layer. The finding of type Ⅱ immunohistochemistry stain showed that cells express strong positive for type Ⅱ collagen in the scaffold and pellet culture system whereas it was weakly positive in the plate culture system; the specific mRNA for cartilage, type Ⅱ collagen, aggrecan and SOX-9 were expressed in all three systems showed by RT-PCR, but type X collagen was expressed continu-ously in the plate culture system and expressed after 21 days in the pellet culture system, whereas it was not detected in the collagen-chitosan-chondroitin sulfate scaffold system. Conclusion The parameters of the collagen-chitosan-chondroitin sulfate scaffold were suitable in our study. The results suggested that it can promote the adipose tissue-derived stromal cells proliferation and chondrogenic differentiation better than the plate and pellet culture systems and maintain the phenotype of chondrocytes well; it is the optimal choice for cartilage tissue engineering in the future.     

硬膜外腔注射生理盐水对剖宫产术患者腰麻效果的影响

目的探讨硬膜外腔注射生理盐水对剖宫产术患者腰麻效果的影响。方法择期行子宫下段剖宫产术患者60例,年龄24～30岁,体重59～73 kg,随机分为2组,每组30例,A组蛛网膜下腔注射规定剂量的0.75%布比卡因后硬膜外腔注射生理盐水5 ml;B组蛛网膜下腔注射0.75%布比卡因。按序贯法进行试验,设定布比卡因的起始剂量为9 mg,剂量梯度为1.5 mg,若上一例有效,则下一例递减一个剂量梯度,若无效则下一例递增一个剂量梯度,蛛网膜下腔阻滞有效的标准为注射布比卡因后20 min内阻滞上平面达T5。采用概率单位法计算ED50。结果A组布比卡因的ED50（5.8 mg）低于B组（8.1 mg）,两组比值为0.72,95%置信区间为0.27～0.98,区间范围不包括1,差异有统计学意义（P〈0.05）。结论硬膜外腔注射生理盐水可增强剖宫产术患者腰麻的效果。     

胆系感染中毒性休克

胆系感染中毒性休克新泰市中医院（２７１２００）韩庆琏，张涛，王渊患者女，５５岁。１９７４年春以胆系感染中毒性休克急症入镇医院外科治疗，给予抗生素、升压药物、维生素、输液等对症治疗３天，病情无好转，外科无手术指征而请中医会诊。患者呈中度昏迷状态，全身黄...     

原发性中枢神经系统恶性淋巴瘤MR表现及其病理学基础

目的 研究原发性中枢神经系统恶性淋巴瘤(PCNSL)的MR表现及其病理学基础。方法 分析13例手术病理证实的原发性中枢神经系统恶性淋巴瘤的临床病理及MR表现。结果 13例中单发肿瘤4例，多发肿瘤9例，共计36个病灶。13例病变均累及幕上，其中8例病灶位于深部脑白质近脑室旁。肿瘤平均最大径为3．2cm。T1WI略低信号28个，T2WI等信号24个。28个病灶呈均匀强化。肿瘤水肿及占位效应相对较轻。2例PCNSL行MR动态增强扫描，早期强化均不明显，时间-信号强度曲线呈缓慢上升型。病理上肿瘤细胞弥漫分布，瘤细胞大小较一致，细胞质少，细胞核大，染色质颗粒粗，可见瘤细胞围绕血管呈袖套样浸润，少见明显的出血及片状坏死，未见钙化，病理均为非霍奇金淋巴瘤。结论 原发性中枢神经系统恶性淋巴瘤的病理基础决定其MR增强形态、占位程度以及肿瘤发生部位具有一定特征，运用不同的MR影像学检查方法和技术，在多数情况下可以做出术前正确诊断。     

定制化胫骨平台系统的构建及应用

为解决传统人工胫骨平台假体个体匹配性差，结构强度与生物活性难统一等问题，提出了定制化复合增强型人工胫骨平台系统的设计制造方法。采用解剖学建模技术设计出外形匹配，内含三维网状构架的复合假体模型，利用快速成型技术制造出假体的树脂原型，并分别通过精密铸造和粉末烧结技术制造出钛合金胫骨平台和大段多孔陶瓷人工骨。结果显示，该方法能快速而精确地制造出形状复杂的人工胫骨平台系统，是实现假体定制化制造的有利保证；通过将金属假体和多孔陶瓷人工骨复合，解决了载重部位大段骨缺损的修复问题。临床应用表明，该假体能与对侧关节匹配运动，通过将机械重建与生物重建相结合可实现受损关节的功能重建。     

磁处理对白酒、乙醇等液体粘度的影响

目的：探讨白酒经磁处理后粘度下降与白酒中乙醇及自来水粘度变化的关系。方法：用奥氏粘度计平行测定磁处理和未经磁处理的白酒、乙醇、自来水和蒸馏水的粘度。结果：与未经磁处理的白酒、无水乙醇、自来水、蒸馏水相比,磁处理白酒的粘度降低0．8900s;磁处理乙醇的粘度降低0．3800s;磁处理自来水的粘度降低0．1566s;而磁处理蒸馏水的粘度升高0．1867s,差异均显著或非常显著（P＜0．05,P＜0．01）。结论：白酒经磁处理后其粘度降低与其主要成份乙醇及自来水粘度下降有关。     

CT诊断胃癌33例分析

我院 1993年 3月— 2 0 0 0年 2月采用ＣＴ扫描诊断为胃癌患者 33例 ,均经手术病理或胃镜活检确诊 ,现报告如下。1　资料与方法1993年 3月— 2 0 0 0年 2月 ,我们选择资料完整的 33例疑为胃癌的患者 ,采用胃肠道ＣＴ扫描检查。其中男 2 5例 ,女 8例 ,年龄 43～ 6 7岁 ,平均 5 6 .5岁。所用机器为东芝6 0 0ＨＱ型ＣＴ扫描机 ,扫描条件为 110ｍＡ ,12 0ｋＶ ,2ｓ。层厚及层距 5～ 10ｍｍ。检查前禁食 6ｈ ,肌注低张药物 (盐酸山莨菪碱或胰高糖素 )后 ,口服 10 0 0～ 12 0 0ｍｌ饮用水充盈胃腔 ,其中 2 9例采用团注法进行了增强检查 ,常规取仰…     

慢性肺心病患者血清肿瘤坏死因子α测定的临床意义

采用放射免疫液相竞争法测定62例不同程度肺心病患血清中的(TNF)-α肿瘤坏死因子,结果明显高于对照组,并随着肺心病心功不全加重而增加。(TNF)-α可能参与慢性肺心病的发病过程。