三磷酸腺苷-氯化镁冷稀释血停搏液的实验研究及临床应用

用液体闪烁计数法测定离体再灌注兔心肌线粒体内４５Ｃａ２＋的放射性强度．观察三磷酸腺苷－氯化镁冷稀释血停搏液和冷稀释血停搏液对缺血再灌注兔心肌线粒体内４５Ｃａ２＋的影响．结果表明，在３０ｍｉｎ以内使用冷稀释血停搏液组兔心肌线粒体内４５Ｃａ２＋放射性强度高于三磷酸腺苷－氯化镁冷稀释血停搏液组（Ｐ＜０．０５），而６０ｍｉｎ时冷稀释血停搏液组的放射性强度稍高或接近于三磷酸腺苷－氯化镁冷稀释血停搏液组，差异无显著性（Ｐ＞０．０５）．在２７例心内直视手术中使用三磷酸腺苷－氯化镁冷稀释血停搏液均获良好效果．     

Interleukin-1 inhibits keratan sulfate production by rabbit chondrocytes: Possible role of prostaglandin E2

We investigated the importance of prostaglandin E2 (PGE2) release in interleukin-1 (IL-1)-induced inhibition of aggrecan synthesis by chondrocytes. Keratan sulfate (KS) production was measured in parallel with PGE2 release in chondrocytes. IL-1 inhibited KS production and stimulated PGE2 release. In the presence of PGE2, there was a dosedependent decrease in baseline KS production. Indomethacin and dexamethasone partially blocked the IL-1-induced PGE2 release while KS production recovered. Our results suggest that IL-1 inhibits KS production, in part, by stimulating the release of PGE2.     

Sexual risk behavior in women with cervical human papillomavirus infection

In a study of 972 women, sexual characteristics of 66 women with a cervical human papillomavirus infection (CHPI) were compared to the remaining study population. Among a number of sexual variables that were significantly correlated with CHPI were number of lifetime sexual partners, short partnerships, many recent partners, infidelity, casual travel sex, sexual début abroad, oral and anal sex, and sexual abuse. In multifactorial analyses four variables remained significantly correlated with CHPI, i.e., number of lifetime sexual partners, casual travel sex, sexual début abroad, and infidelity. It is concluded that CHPI shows most of the epidemiological characteristics of a sexually transmitted disease.     

坚持以人为本构建和谐医院

和谐,是一个涉及人类各个活动领域的概念,可以从不同角度加以理解,归根到底它是人类社会追求的美好价值观.构建和谐社会是新时期新阶段我国社会改革发展的主要目标.     

Unusual Delayed Manifestation of a Penetrating Chest Trauma

Abstract Pericardial tamponade remains a diagnostic challenge to the clinician especially when the patient is well compensated hemodynamically. We report an unusual case who sought medical help 1 month after having been stabbed in his chest. An investigation revealed a perforation of the myocardium and a pericardial tamponade. The patient survived thanks to a large organized clot that plugged the perforation. The patient was exposed to increased risk due to delayed onset, recognition, and therapy of the tamponade. Most reports on this subject deal with acute pericardial tamponade. Only few cases of delayed pericardial tamponade have been reported. A review of the relevant literature and the therapeutic approaches are discussed.     

姬松茸多糖的抗炎作用

[目的 ]观察姬松茸多糖的抗炎作用 .[方法 ]制作二甲苯所致小鼠耳急性炎症模型、角叉菜胶所致大鼠关节肿胀模型、小鼠棉球肉芽肿亚急性炎症模型和大鼠佐剂关节炎模型 ,给予 4 0 ,80 ,16 0mg/kg的姬松茸多糖 .[结果 ]姬松茸多糖明显抑制上述各类型炎症反应 .[结论 ]姬松茸多糖具有抗炎作用 .     

大鼠脑内儿茶酚胺类递质及其代谢物的同时提取及反向高效液相测定法

目的建立一种操作简便、高效的测定脑组织中去甲肾上腺素(NA)、肾上腺素(AD)、多巴胺(DA)、3,4二羟基苯乙酸(DOPAC)及高香草酸(HVA)的方法,为有关药物作用机理的研究提供实验手段.方法以有机溶剂提取,高效液相色谱--电化学检测器(HPLC-EC)测定大鼠纹状体、皮质、下丘脑NA、AD、DA、DOPAC及HVA的含量.结果测得NA、AD、DA、DOPAC及HVA的绝对回收率依次分别为:80.3%±12.4%,86.5%±14.3%,90.3%±12.1%,89.5%±17.2%、87.6%±[13].2%.线性范围0.2～20ng,批内与批间变异系数分别小于8%及10%.结论该方法具有简便、迅速、回收率较高的特点,便于实验室应用.     

家兔急性周围型肺栓塞影像模型的制备

目的探讨用可吸收性明胶海绵制作家兔急性肺栓塞(PE)影像模型的可行性。方法20只实验组家兔随机分成5组,采用明胶海绵栓子经股静脉插管制成急性PE的动物模型。栓塞后行肺动脉造影检查,栓塞后2h、24h、3d、7d、14d(A、B、C、D、E组)分批处死家兔,解剖肺动脉并观察栓塞区肺组织病理变化。对照组2只注入生理盐水,分别于第7天,14天处死。结果20只实验组家兔1只麻醉意外死亡,19只制备模型后成活,模型制备成功率95%。肺动脉造影显示46支叶及段肺动脉栓塞。肺动脉解剖共发现栓子65个,栓塞动脉50支。A组肺体积肿胀,色深红,镜下观察见肺组织充血。B组、C组、D组、E组中15只家兔肺表面呈苍白色、暗红色、黑色或苍白色区内见黑色坏死区,另外1只仅见肺体积肿大,肺颜色无变化,E组1只第3天左侧发生气胸,肺萎缩;光镜下观察肺组织水肿、淤血、出血、坏死,炎性细胞浸润,肺泡含气减少,肺泡支架结构破坏,E组2例栓塞区见肺组织机化,栓子周围有血小板血栓和/或混合血栓形成。对照组2只家兔肺部仅见少量炎性细胞浸润。结论用明胶海绵作为栓塞物制备家兔急性肺栓塞模型,其方法简便、成功率高,为肺栓塞影像学研究提供了一种较好的实验模型。