双侧子宫动脉氨甲喋呤灌注加栓塞治疗宫颈妊娠11例效果分析

目的探讨双侧子宫动脉氨甲喋呤灌注加栓塞对宫颈妊娠的治疗效果。方法临床确诊宫颈妊娠伴阴道出血患者11例,急诊治疗。双侧子宫动脉插管、造影,分别灌注氨甲喋呤(MTX),然后用明胶海绵微粒或明胶海绵微粒加少量丝线微粒栓塞。结果宫颈妊娠孕囊由子宫动脉供血,部分以一侧为主,8例见对比剂外溢。双侧子宫动脉栓塞完毕,阴道出血明显减少。术后血β-HCG进行性下降。9例胚胎自行排出。2例行宫颈搔刮术,术中出血量不多,刮出物为陈旧性胎盘组织。胚胎排出或刮出后阴道出血完全停止。结论双侧子宫动脉化疗栓塞治疗宫颈妊娠效果良好,达到了预防和终止阴道大出血、保留子宫的目的。     

胆道感染和抗生素的选用

为分析当前胆汁中菌群分布及其药物敏感情况，探讨胆道感染的原因和特点，本文总结了７６例胆道感染病人术中胆汁需氧菌群及药物敏感情况。现在报告如下。资料与方法１．一般资料：本组７６例，男性３４例，女性４２例；年龄２２～７８岁，平均年龄５６．５岁。经手术证实伴发肝内胆管结石１１例（１４．４７％），胆总管结石３９例（５１．３２％），肝内外胆管结石２２例（２８．９５％），肝脓肿５例（６．５８％），阻塞性黄疸５例（６．５８％），急性胰腺炎８例（１０．５３％），先天性胆总管囊性扩张２例（２．６３％），胆道术后７…     

齿科桩钉用纤维/树脂复合材料细胞毒性实验研究

目的：研究齿科桩钉用纳米SiO2／S－Gf/EAM复合材料的细胞毒性。方法：用四唑盐比色法研究纳米SiO2／S－Gf/EAM复合材料的细胞毒性。结果：随着培养时间的增加，所测材料各浓度组的吸光值也相应增加，阳性对照组增加较慢，空白对照组和测试材料组增加较快，低浓度组的吸光值高于高浓度组，实验材料的细胞毒性为0级。结论：纳米SiO2／S－Gf/EAM复合材料无明显细胞毒性。     

不同敷料组合对烧伤患者供皮区创面微环境的影响

Objective To investigate the effect of dressing materials in various combinations on bum wound microenvironment and healing condition. Methods Two hundred donor sites with wounds of 0.3 mm in depth in 186 burn patients, who needed skingrafting and admitted to our ward were enrolled in study, and they were divided into A ( with dressing composed of aiginate + cotton pad for donor area), B ( with dressing composed of vaseline gauze + cotton pad for donor area) , C (with dressing composed of algi-nate+ foam dressing for donor area), D ( with dressing composed of vaseline gauze + foam dressing for donor area) groups according to random table method. Effect of dressings on wound evaporation and pH value were observed. Bacterial colonization, degree of pain complained by patients after dressing change, and wound healing time in each group were compared. Results One hundred and eighty-four patients complied with the study, while 2 patients were excluded due to untimely falling-off of the dressing. Wound evaporaton in respectively, among them B group showed optimal effect of keeping humidity (P<0.01). Wound pH value in A, B, C, D groups was 7.22±0.06, 7.41±0.03, 7.05±0.03, 7.34±0.06, respectively, among them it was highest in B group. The positive rate of bacteria in D group was highest (22.4%), and lowest in C group (4.0%). Pain was lightest in C group (score was 0.98±0.12), and most serious in B group ( score was 8.14±0.82). The shortest wound healing time was seen in C group (6.7±0.8 d) , and longest in D group (15.6±3.5 d). Conclusions Application of various dressings on similar wounds can pro-duce different wound microenvironment, which is closely related to wound healing time. Compared with pH value, humidity is the more important factor for wound healing.     

羟基脲对肝癌细胞HepG2中GADD45β表达影响及其可能机制

目的 初步明确肝癌细胞中GADD45β基因近端启动子序列,探索羟基脲对人肝癌细胞HepG2的GADD45β表达影响及可能机制.方法 体外合成GADD45β近端启动子序列群(-618～-314),构建荧光素表达质粒,转染肝癌细胞株HepG2,根据启动子活性强度结合数据库分析存在的转录调节因子结合位点;以实时荧光定量PCR比较羟基脲作用前后HepG2细胞GADD45β表达,并进一步比较羟基脲对GADD45β启动子活性的调控作用、分析羟基脲对HepG2的抑制效应,并通过Caspase-8、Caspase-9和Caspase-3的表达变化测定凋亡的发生和发展.结果 GADD4518近端启动子中含有3个NF-кB(-602/-593、-581/-572、-537/-528)和1个E2F-1(-470/-436)转录调节因子与启动子结合位点;羟基脲能明显诱导HepG2中GADD45β的表达,并呈现出剂量-效应的正相关关系,同时NF-кB和E2F-1启动子均明显增强.羟基脲能够明显抑制HepG2的DNA合成能力和细胞克隆形成能力,同时羟基脲能迅速启动HepG2凋亡的发生和发展.结论 羟基脲能明显诱导肝癌细胞中特异性缺失的GADD45β基因表达,增强转录调节因子的表达水平是其可能的作用机制.     

硬膜外麻醉下妇科手术患者右美托咪啶和咪达唑仑镇静效果的比较

硬膜外麻醉下妇科手术患者常伴有不同程度的精神紧张和恐惧感,可诱发强烈的应激反应,即使硬膜外麻醉效果满意,也不能完全消除内脏牵拉反应等自主神经活动,因此,硬膜外麻醉时需要辅助一定程度的镇静.     

胰岛素泵和甘精胰岛素在2型糖尿病患者围手术期的疗效及费用的比较

目的:比较胰岛紊泵和甘精胰岛素在2型糖尿病(T2DM)患者围手术期控制血糖选标时间及低血糖的发生率及费用的差别.方法:将80例围手术期T2DM患者分为胰岛素泵治疗组(CSII组)42例,甘精胰岛素治疗组(G组)38例.比较各组患者血糖达标时间及低血糖的发生率及费用的差别.结果:CSII组和G组在血糖达标时间及低血糖发生率上无明显差别,而G组在费用方面明显低于CSII组.结论:胰岛素泵及甘精胰岛素在T2DM患者围手术期均能安全、有效、快速、平稳降低血糖,且甘精胰岛素费用较低.     

早期负压封闭引流治疗深Ⅱ度烧伤创面的临床疗效评价

Objective To evaluate the clinical curative effect of applying vaccum sealing drainage (VSD) therapy in treating deep partial-thickness burn wound at the initial stage prospectively, and to provide the basis for its clinical application. Methods Twenty-two patients with about 10% TBSA burn of the lower limbs, and in which partial-thickness wound exceeded 1% TBSA in each limb, were admitted to our hospital within 3 hours after burn from May 2009 to March 2010. Wounds in each patient were divided into VSD treatment group (treated with VSD therapy) and control group (treated with 10 g/L silver sulfadia-zine cream) based on the principles of symmetry of location, identical deepness, and similarity in size etc. The amount of water evaporation, the swelling intensity, the status of bacterial colonization, the degree of pain, the healing time, and the quality of healing of wounds in 2 groups were observed and compared. Data were processed with t test and rank-sum test. Results The observation was completed in 21 patients. All of the wounds were treated within 4 hours post burn (PBH). The amount of water evaporation of the normal skin and burn wounds before dressing coverage in VSD treatment group was respectively close to that in control group (with t value respectively 1.310, - 0. 911, P values all above 0.05) ; the amount of water evaporation on the surface of dressing in VSD treatment group [(44. 3 ±3.9) mL·h-1·m-2] was less than that in control group [(66.1 ±6.4) mL · h-1· m-2, t = -11.39, P <0.01]. In VSD treatment group, the circumference of proximal thigh increased (3.48 ±0.35) and (2.51 ±0.21) cm on post burn day (PBD) 3 , 7 as compared with that on PBH 5 , which was respectively smaller than that [(8.02 ± 0.41) , (3. 99 ± 0. 32) cm] in control group (with t value respectively 4. 110, 3. 569, P values all below 0. 01). Positive bacteria' culture rate on PBD 10 of each group was respectively lower than that at admission (with Z value respectively -3.220, -3.870, P values all below 0. 01) , and there was no significant statistical difference between 2 groups at admission or on PBD 10 (with Z value respectively - 0. 894, 0.000, P values all above 0.05). The wound surface in VSD treatment group was weak acidic (pH value 7. 12 ±0.06) on PBD 10,and it was neutral (pH value 7.41 ±0. 13) in control group. The wound pain degree in control group on PBD 1,3,7 was respectively higher than that in VSD treatment group (with t value respectively - 16. 132, -21.230, -16.453, P values all below 0.01). There was no significant statistical difference between 2 groups in healing time of wounds (t =1. 186, P >0.05). The healing quality of wounds in VSD treatment group (100. 00% , 100. 00%) 2 or 3 months after burn was better than that in control group (19. 05% , 85. 71%) (with Z value respectively -11.638, -3. 870, P values all below 0.01). Conclusions Early application of VSD therapy cannot expedite the healing process of deep partial-thickness burn wounds, but it can improve the healing quality. It is one of the effective methods to deal with deep partial-thickness burn wounds, which is worthy of clinical attention and further research.     

不稳定性骨盆骨折内固定治疗及非手术治疗近期疗效

目的比较分析不稳定性骨盆骨折内固定治疗及非手术治疗疗效。方法对84例不稳定性骨盆骨折患者,38例采用内固定手术治疗,46例采用非手术治疗。结果死亡5例,79例随访6个月～3年(21.4个月),根据Majeed骨盆骨折的结果分级评定标准,内固定组优良率91.7%,非手术组优良率62.8%。结论内固定组患者术后疗效满意率明显高于非手术组,对于不稳定性骨盆骨折患者应积极开展手术治疗。     

IL—6相关基因的克隆与鉴定

目的：克隆和鉴定IL－6作用相关基因将有助于揭示IL－6信号转导机制和发现新的信号分子,方法：以来源于IL－6处理和未处理的U937细胞mRNA的双链cDNA作为检测子和驱动子,进行cDNA代表性异分析,结果：分离了14个差异表达基因序列（EST）,反向RNA Nortghern杂交筛选到9个差异表达序列,经测序及序列分析,其中7个差异表达的EST代表在细胞生命活动或信号转导中有重要的作用的已知基因,2个EST代表与IL－6作用相关的新基因,Northern印迹和时间表达普进一步证明了P52和P31代表的新基因与IL－6作用的相关性,结论：上述结果提示这些差异cDNA序列可能与IL－6信号转号作用密切相关。