肝硬化门静脉高压症患者心脏泵功能减退

心脏血流动力学参数足反映人体生命信息和心脏泵功能的重要指标.同前,尢创性血流动力学检测已广泛应用于心力衰竭、休克等危重症患者的病情监测、治疗方案的确定等,以便使患者得到科学、有效的治疗[1-2].     

无张力疝修补术治疗腹股沟嵌顿疝45例体会

目的:探讨无张力疝修补术治疗成人腹股沟嵌顿疝的临床效果。 方法：回顾性分析无张力疝修补术治疗45例腹股沟嵌顿疝患者（包括平片式修补Lichtenstein术12例、疝环充填式Rutkow术31例及经腹股沟切口Kugel腹股沟疝修补术2例）的临床资料。 结果：45例手术过程均顺利。无切口感染和排异反应，无术后死亡。所有患者术后3个月获得门诊随访，未见复发。 结论：无张力疝修补术在治疗成人腹股沟嵌顿疝有良好效果。     

IL-10在过敏性紫癜血管内皮损伤中的作用机制研究

目的　探讨白细胞介素 10 (IL 10 )在过敏性紫癜血管内皮损伤中的作用及机制。方法　建立人脐静脉内皮细胞 (HUVEC)培养模型 ,ELISA法检测过敏性紫癜患儿外周血单个核细胞 (PB MC)活化后培养上清IL 6、IL 1β、TNF α、IL 10等细胞因子的含量 ;AnnexinV/PI双染色法 ,流式细胞仪检测过敏性紫癜患儿PBMC培养上清所诱导的内皮细胞凋亡率。结果　①过敏性紫癜组PBMC体外刺激活化后IL 6、IL 1β、TNF α、IL 10等细胞因子的分泌量均明显高于对照组 (P <0 0 1) ,其培养上清诱导的内皮细胞凋亡率 (34 7± 10 3) %明显高于对照组 (3 6± 0 9) %。②抗IL 6、IL 1β、TNF α单克隆抗体联合阻断可明显降低过敏性紫癜患儿PBMC培养上清诱导的内皮细胞凋亡率 (2 2 6±5 9) % ,而抗IL 10单克隆抗体阻断则明显增加过敏性紫癜患儿PBMC培养上清诱导的内皮细胞凋亡率 (5 6 9± 16 5 ) %。③于过敏性紫癜患儿PBMC培养上清加入外源性IL 10 ,可明显降低IL 6、IL 1β、INF α等炎性细胞因子的表达 ,并明显降低内皮细胞凋亡率 (11 8± 3 1) %。结论　IL 10作为机体炎症反应负反馈调节过程中的一个重要枢纽 ,在过敏性紫癜炎症因子所介导的血管内皮损伤中起重要的保护作用。     

树枝状静脉移植在手部创伤中的应用

目的探讨手掌严重碾挫伤应用血管移植手术方法的选择。方法对12例手掌碾挫伤伴血管损伤的患者，采用树枝状浅表静脉倒转后多级移植修复缺损的手掌动脉，同时对缺损皮肤一期行植皮或皮瓣修复。结果术后12例创面全部Ⅰ期愈合，手指血循环好。术后随访3～22个月，手功能评定： 优5例，良4例，可2例，差1例，优良率为75％。手掌恢复了良好的外形和功能，能完成手指的捏、握、对掌和对指功能。结论对严重的手掌毁损伤，利用树枝状静脉移植修复缺损的血管，能获得较好的手功能和外形。     

大鼠异体肢体移植术后急性排斥反应阶段血管内皮细胞ICAM-1表达的动态变化

Objective To investigate the dynamic changes of intercellular adhesion molecule-1 (ICAM-1) expression in endothelial cells (EC) during hindlimb allograft acute rejection in rats and the inhibitory effect of cyclospofine A (CsA) on the acute rejection. Methods The rat model of hindlimb allograft was developed. The rats were randomly divided into following groups: control group (Wistar→Wistar), rejection group ( Sprague-Dawley→Wistar) and CsA-treated group (Sprague-Dawley→Wistar). At postoperative day 1, day 4 and day 7samples of the femoral artery from the allograft limb were harvested to observe the pathologic changes. ICAM-1 expression in EC was quantified using immunohistochemical assay. Results Slight swelling and weak ICAM-1expression of EC were observed in the control group. In the rejection groups, obvious EC swelling and massive lymphocyte infiltration were seen. ICAM-1 expression in EC was significantly stronger and elevated. In CsA-group only mild infiltration of lymphocytes was seen and ICAM-I expression in EC was also much weaker.Conclusion During rat hindlimb allograft acute rejection the expression of ICAM-1 in EC was closely related to the occurrence and development of acute rejection. CsA could reduce the expression of ICAM-1 in EC and hence inhibit acute rejection of composite allograft.     

头皮冠状切口的并发症及其防治

目的：对采用头皮冠状切口所引发的并发症进行分析，探讨防治策略。方法：对我科2003-01～2006—07应用头皮冠状切口行颅颌面骨折修复重建、颌面部肿瘤切除与缺损修复、先天性颅颌面畸形矫正的221例中发生并发症的40例进行分析总结。结果：18例出现头皮麻木及感觉异常，9例有较宽切口瘢痕，6例出现脱发，4例发生颞窝凹陷，2例发生头皮下血肿，2例出现单侧面神经颞支损伤，1例发生鼻眶区肥厚。结论：头皮冠状切口具有切口隐蔽、面部疤痕不明显，显露充分的优点，但对其并发症也不容忽视。应根据具体情况选择合适的切口类型，术中精细的解剖、神经血管的良好保护以及正确的缝合方法可减少并发症的发生。     

Effect of leptin on the regulation of placental hormone secretion in cultured human placental cells.

Placenta is an important source of leptin during pregnancy that contributes to the high plasma leptin levels in pregnant women. Leptin and its functional receptors are synthesized in trophoblast cells that, in turn, secrete gestational hormones supporting a paracrine or autocrine role for leptin in the endocrine activity of the placenta. In the present study we examined the effect of leptin on in vitro release of gestational hormones (human chorionic gonadotropin (hCG), human placental lactogen (hPL), progesterone, estrogens and testosterone) by human term placental cells in culture. Placentas at term were obtained immediately after delivery from mothers with uncomplicated pregnancies. Progesterone, hCG, hPL, estradiol, estrone, estriol and testosterone levels were measured by different assays in culture media of cells maintained in monolayer culture after incubation for 12, 24, 48 or 72 h with leptin or placebo. Incubation with leptin did not modify hCG, hPL, progesterone, estriol and estrone secretion for any of the doses and times assayed. However, leptin led to a dose-dependent decrease in estradiol release. This effect was observed when treatment with recombinant human leptin spanned from 12 to 72 h. At this time an increase in testosterone levels was observed in leptin-treated cells versus placebo. These results indicate that leptin can be considered a gestational hormone implied in the endocrine function of the placenta, with an important role in control of the production of steroid reproductive hormones in placental cells in vitro.     

广龙昊膏药对大鼠腰椎间盘突出模型细胞因子IL-1、NO及组织胺的影响

为探讨IL-1、NO及组织胺在腰椎间盘突出中的作用及广龙昊膏药的治疗效果，将60只大鼠造模并随机分为正常组（A组）、造模组（B组）、广龙昊膏药组（C组）和奇正止痛膏组（D组），观察其神经根周围局部组织中IL-1、NO及组织胺的含量。结果显示，B组中的IL-1、NO及组织胺较A组显著升高（P〈0．01）。C组、D组较B组明显下降（P〈0．01）。表明大鼠腰椎间盘突出模型中细胞因子IL-1、NO及组织胺明显增加可能是腰椎间盘突出中的潜在始动或促进因素，而C组能显著降低神经根局部中IL-1、NO及组织胺的含量，说明广龙昊膏药作用部分是通过抑制炎性细胞因子的活性实现的。