乳腺癌中bcl-2蛋白表达的意义

为探讨抑凋亡基因ｂｃｌ－２蛋白表达在乳腺癌中的意义,应用免疫组织化学的方法,对１２５例浸润性乳腺癌患者的石蜡包埋组织切片中ｂｃｌ－２,雌激素受体,孕激素受体及ｐ＾５３基因的表达产物进行检测。结果：ｂｃｌ－２蛋白在浸润性导管癌中的表达为６３．３％,而在浸润性小叶癌中为８８．９％,二者间菜显著性间谍;在浸润性导管癌中,ｂｃｌ－２蛋白的表达与原发癌大小及肿瘤分级呈负相关,与ＥＲ,ＰＲ的表达呈正相关,与ｐ     

低温体外循环血中血管性假血友病因子浓度及循环内皮细胞的观察

目的观察先天性心脏病患者体外循环围手术期血管性假血友病因子（ｖｏｎＷｉｌｅｂｒａｎｄｆａｃｔｏｒ,ｖＷＦ）及血循环内皮细胞（ｃｉｒｃｕｌａｔｉｎｇｅｎｄｏｔｈｅｌｉａｌｃｅｌｓ,ＣＥＣ）数的动态变化过程,探讨低温体外循环对血管内皮细胞的影响。方法于肝素化后体外循环前、转流３０分钟、开放主动脉５分钟、停机、停机后４小时和术后第１天晨用酶联免疫法测定２０例先天性心脏病患者血浆中ｖＷＦ浓度,同时用Ｐｅｒｃｏｌ密度梯度离心法对患者血中ＣＥＣ进行计数和形态学观察。结果转流３０分钟、开放主动脉５分钟、停机、停体外循环后４小时、术后第１天晨ｖＷＦ水平和ＣＥＣ数较体外循环前显著升高（Ｐ＜０．０５）。结论体外循环可导致血管内皮细胞激活或损伤     

自身骨泥成骨活性的实验研究

目的：观察长管状骨钻孔产生的骨泥的成骨活性。方法：选健康家兔２２只,桡骨中段连续钻孔采集骨泥,植入兔股四头肌。２周取５只兔做ＥＣＴ检查,１、２、３周分别做组织学检查、Ｅｌｉｖｉｓｉｏｎ二步法免疫组化染色及碱性磷酸酶测定。结果：自身骨泥具有良好的异位诱导成骨活性。植入区放射性浓聚程度明显高于对侧正常组织（Ｐ＜００５）。植入１周软骨生成,３周网织骨形成。组织碱性磷酸酶活性明显高于正常肌肉（Ｐ＜００１）,免疫组化发现细胞及组织ＢＭＰ强阳性。结论：长管状骨钻孔产生的自身骨泥具有诱导成骨作用,可做为需少量植骨的植骨材料。     

动脉置入导管化疗后二期切除治疗晚期直肠癌

目的探讨晚期直肠癌动脉栓塞化疗后二期切除的远期疗效。方法对９６例不能手术根治切除的晚期直肠癌行髂内动脉、直肠上动脉置管栓塞化疗,对其中部分缓解且无远处或局部广泛转移的３１例进行二期切除。结果获随访２９例,死亡８例,２１例健在,其中无癌生存１６例,１,３,５年生存率（寿命表法）分别为９３０％,７８０％,７０８％。结论髂内动脉、直肠上动脉置管栓塞化疗后二期切除晚期直肠癌,提高了根治性切除率和远期疗效。     

Anesthetic management for cesarean section in a pregnant woman with impending acute liver failure--a case report

Acute liver failure includes a constellation of clinical conditions resulting from rapid loss of hepatocyte function. The anesthesiologist may often be asked to anesthetize a patient with acute liver failure before the etiological entity of disease can be completely clarified. Most of the previous reports were concentrated in obstetric or hepatological periodicals. Reports about anesthesia for such patients are scanty. We present a case about a near term pregnant woman with a complication diagnosed as impending acute liver failure, who received total intravenous anesthesia for emergent cesarean section. Pros and cons of different anesthetic techniques for this condition are discussed.     

Subtalar arthrodesis for late sequelae of calcaneal fractures: fusion in situ versus fusion with sliding corrective osteotomy

Primary subtalar arthritis is not common. In most cases, it is the late sequela of intra-articular calcaneal fracture. Subtalar arthrodesis is mostly used for the treatment of traumatic subtalar arthritis in our clinics. We have compared our early cases of in-situ subtalar fusion with our recent cases of fusion with sliding corrective osteotomy in this clinical report. From 1989 to 1992, 15 feet of 13 patients were treated with subtalar arthrodeses for subtalar arthritis caused by malunion of calcaneal fractures. Fusion in situ was done by Ollier's approach, and resection of bony protrusion was done if there was lateral entrapment syndrome. From 1992 to 1995, 13 feet of 12 patients also received subtalar arthrodeses to salvage their calcaneal fractures, but the subtalar fusion was done by wide lateral approach, calcaneal sliding corrective osteotomy, and sometimes (11 of 13 feet) with Achilles tendon lengthening to restore the calcaneal height and width. Patients of both groups experienced obvious clinical improvement in subtalar pain relief, but there was no difference with walking distance, running, or jumping. The group undergoing fusion with sliding corrective osteotomy was more satisfied with regard to cosmetic results and shoe wear. The overall satisfactory rate in the group who underwent fusion with sliding corrective osteotomy (92%) was superior to the group who underwent fusion in situ (77%). Though our method of sliding corrective osteotomy does not provide much improvement to the talus declination angle, it is suitable for those patients with a "banana"-shaped calcaneus malunion. If the patient has prominent anterior ankle pain caused by tibiotalar impingement, we believe that a distraction subtalar arthrodesis would be more appropriate.     

Antegrade locked nailing for humeral shaft fractures

Treatment results of antegrade locked nailing of acute humeral shaft fractures, including union rate and recovery of shoulder function, have been inconsistent. This led the current authors to hypothesize that implant design and surgical techniques might account for this inconsistency. In the current study, 47 fractures (38 acute; nine pathologic) in 47 patients achieved union with the techniques of closed nailing, short to long segment nailing, and fracture compression. Satisfactory recovery of shoulder function occurred because of minimal surgical trauma, prevention of impingement by the nail or locking screws, and prevention of axillary nerve injury or comminution of the humeral head. Forty-seven patients with 38 acute fractures and nine pathologic fractures were treated with humeral locked nails. Mean followup time was 21.4 months. With a single operation, all 38 acute fractures proceeded to eventual union; the average time to union was 7.8 weeks. Thirty-five patients had excellent or satisfactory recovery of shoulder function. Complications included slipout of the proximal screw, nail breakage, fragment displacement, and transient postoperative radial nerve palsy. All nine patients with pathologic fractures had substantial pain relief and increased arm function after surgery. The current study shows the reliability of antegrade locked nailing for proximal and middle third fractures of the humeral shaft.     

多发伤后血清细胞因子水平的动态观察

目的 检测多发伤后血清中各种细胞因子的水平,探讨其意义。方法 研究对象为多发伤创伤病人２０例。于伤１－７天,每日采空腹血样,用双抗体夹心酶联免疫法分别检测血清中肿瘤坏死因子,白细胞介素１β,６及粒细胞集落刺激因子,并进行了动态观察。结果 多发伤组ＴＮＦ－α,ＩＬ－２,ＩＬ－６明显高于对照组,而且在伤情严重的病人中ＴＮＦ－α和ＩＬ－２升高更为明显,Ｇ－ＣＳＦ的升高与严重感染有关。,     

Blunt trauma with flail chest and penetrating aortic injury.

Blunt chest trauma with flail chest is common. The mortality attributes initially to the associated pulmonary contusion, massive hemothorax and later to the occurrence of adult respiratory distress syndrome. We report a case of flail chest with segmental fractures near the costovertebral junction and delayed hemothorax attacked 14 h later. The final diagnosis of the penetrating aortic injury by detached rib fragment was appreciated by aortogram. Unfortunately, active aortic hemorrhage made prompt thoracotomy in vain for life salvage.     

人血管生成素-1真核表达载体的构建与表达

目的构建人血管生成素-1的真核表达载体,真核表达人血管生成素-1蛋白并进行纯化。方法通过聚合酶链反应（PCR）将人血管生成素-1基因片段插入B7载体中构建真核表达载体,通过转染中国仓鼠卵巢（CHO）细胞进行真核表达。结果成功构建了B7Ang-1真核表达载体,在CHO细胞中进行了稳定表达,获得了纯化的人血管生成素-1蛋白。结论真核系统表达的人血管生成素-1蛋白具有良好的抗原性,为进一步的生物活性研究和临床应用奠定了基础。