再生障碍性贫血的骨髓培养及其T细胞或血清对GM—CFU的影响

对13例急性再障和13例慢性再障作骨髓GM—CFU体外培养,结果显示急性再障集落产率明显低于正常对照组及慢性再障组(P<0.01),再障的骨髓集落形成率与非造血细胞比例呈高度显著的负相关。3例急性再障和2例慢性再障的T细胞对正常骨髓具有明显抑制作用;1例急性再障和2例慢性再障的血清亦能够抑制正常骨髓的集落形成,抑制率均>30％。     

氯氮平与氯丙嗪治疗精神分裂症对照观察

氯氮平是新型抗精神病药,为总结临床经验,我们将氯氮平与氯丙嗪进行了临床对照研究,现将结果报告如下: 资料与方法病例选择入组条件:①符合中华医学会1984年精神分裂症诊断标准,②年令:18～55岁,③无严重心肝肾等躯体疾病,④无癫痫和药物过敏史。     

去细胞喉支架的制备及喉肌细胞再生的可行性研究

Objective To prepare a deeelhilarized whole laryngeal scaffold by utilizing a perfusion-decellularized technique, reseed cells on it, and construct recellularized laryngeal muscles. Methods Perfusion decelluarized larynxes were obtained by common carotid arterious perfusion with detergents. Then they were performed by macroscopic view, histological examination, scanning electron microscopy (SEM) and cartilage viability. Decellularized laryngeal scaffold were then reseeded with inducted mesenchymal stem cells (MSCs). Composites were transferred into greater omentums of rabbits after one day' s adherence and harvested after eight weeks. Macroscopic view, histological examination and immunohistochemistry were performed. Results Perfusion larynxes became transparent after two hours. Histology and SEM indicated that perfnsion method shewed better deculluarized effect. More ventages and collagen fibers but no intact cell or anclei were retained in the decellularized martrix. Porosity measured by Image pro plus 6. 0 was 80. 4% ± 3.2% (x ± s). Chondrocyte vitality assay indicated chondrocyte vitality rate in the perfusion group was 86. 9% ± 1.5% . After eight weeks, vascularization formed and integrated cartilage frameworks still remained. Histological examination could clearly show the presence of muscle bundles and vessels. Immunohistoehemical examination indicated that sarcomeric-α actin expressed positively in corresponding areas. Conclusions It is feasible to reseed MSCs into the decellularized laryngeal muscle matrix for constructing tissue-engineered laryngeal muscles. This in vivo maturation into the omentum could be the first step before in situ implantation of the construct.     

酒精型气雾杀虫剂的研制及对蚊蝇蟑螂药效观察

目的 :研制一种药效高、气味好、耐腐蚀的气雾杀虫剂 ;方法 :分别测试实验室、模拟现场、现场、贮存稳定性、耐压、耐腐蚀性、毒性试验结果 ;结果 :实验室按 1.0 g/筒喷雾 ,对蚊蝇的 K T50 均小于 1.0分钟 ,对德国小蠊 K T50 为 6.3分钟 ,三种害虫的 2 4h死亡率均达 10 0 ;模拟现场 ,对蚊蝇和德国小蠊分别按 0 .3 g/m3 和5 .0 g/m2的剂量喷雾后 ,三种害虫 1h击倒率和 2 4h击倒率均为 10 0 ;现场试验按 0 .3 g/m3剂量喷药后 ,蚊蝇 10分钟内全部击倒 ,2 4h死亡率均达 10 0 ;药液贮存两年后药效分解率小于 5 ,耐压、耐腐蚀性显示正常 ;毒性鉴定属实际无毒级 ,对眼结膜轻度充血 ,对皮肤无刺激性。结论 :该气雾杀虫剂用食用酒精作溶剂 ,在两年内使用可替代煤油制剂     

高克螂微胶囊剂防制蟑螂的应用研究

高克螂微胶囊剂防制蟑螂的应用研究张紫虹，林立丰，梁焯南，黄湘东，安志儒，唐天兰随着杀虫剂不断向高效、安全、长效方向发展，剂型也从以乳油为主向可湿性粉剂、悬浮剂过渡，还出现了更安全、长效的微胶囊剂，具有较乳油药效长、毒性低、公害少等优点［１］。日本住友...     

降粘化瘀法治疗慢型克山病血液流变学指标的探讨

克山病是以缺血缺氧性心肌坏死为主要特征的地方性心肌病。多年来人们已经注意到在冠心病、心肌梗塞等缺血性心脑血管病发病过程中的血液流变学方面的改变,并且在应用降粘、解聚、溶栓等中药的治疗中取得明显的治疗效果。作者曾对37例克山病患者进行了血液流变学的检测,结果表明:克山病患者的血液呈现高粘滞状态。为了改善这一状态,作者对     

在音乐缭绕中痊愈

你是否曾经因为它血脉贲张浑身发抖过．你是否因为它心潮起伏热泪盈眶过？如果这世界上没有它．你怕么？当天堂的圣歌响起．即使面对死亡．你也无所畏惧，它以它温柔的手．抚平你心里和肉体的伤……它让你不痛。[编者按]     

霉酚酸酯治疗甲状腺相关性眼病临床对照研究

目的对比霉酚酸酯等几种不同免疫抑制药对甲状腺相关性眼病(TAO)或称Graves眼病(Graves',Ophthalmopathy,GO)的疗效,旨在寻求免疫治疗的有效手段. 方法将TAO 54例,分成A、B两大组,A组随机采用泼尼松(16例,完成治疗者13例)或雷公藤总甙(TⅡ,15例)治疗;B组随机采用霉酚酸酯(MMF,12例)或环孢素(CsA,11例)治疗,疗程12周.疗效判断采用改良Given-Wilson积分指数系统,设定积分下降或上升≥3分为好转或恶化,<3分为无变化. 结果12周末,泼尼松组13例中7例(54%)好转,6例(46%)无变化;TⅡ组10例(67%)好转,5例(33%)无变化; MMF组11例(92%)好转,1例(8%)无变化;CsA组5例(45%)好转,6例(55%)无变化.MMF好转率高于CsA(P<0.05);TⅡ组与泼尼松组比较,无显著差异(P>0.05).各组治疗后眼病分值均有一定程度下降(P<0.01),下降幅度从大到小依次为MMF 、TⅡ、泼尼松和CsA.泼尼松组3例(19%)体重增加>5%,2例血糖增高,停药后血糖恢复,该组共3例退出治疗,其他各组无因药物不良反应而中途退出者.MMF组未发现有明确的药物不良反应. 结论新型免疫抑制药MMF用于治疗Graves眼病疗效优于CsA,且不良反应少;小剂量的TⅡ治疗Graves眼病疗效与泼尼松相仿,但不良反应可能较少.     

营养补充品中刺激剂的分析测定

介绍营养补充品中刺激剂的毛细管气相色谱和气相色谱质谱联用检测方法.试样采用碱提,液-液分配提取,以HP-5毛细管柱为分离柱,用氮磷检测器测定.实验结果表明:该方法操作简便,分析速度快,结果可靠.添加平均回收率为75.4%～143.1%,相对标准偏差为0.27%～5.5%,检出限为5～40μg/L.