May钢板在治疗股骨转子间骨折中的应用

目的　探讨May钢板治疗股骨转子间骨折临床效果及治疗要点。方法　对 2 7例股骨转子间骨折用May钢板治疗 ,按Evans分型 ,Ⅰ型 2例 ,Ⅱ型 4例 ,Ⅲ型 9例 ,Ⅳ型 12例。结果　 2 7例平均随访 2 9个月 (15～ 36个月 ) ,骨折全部愈合。根据Harris髋关节评分 ,优良率达 96 %。结论　May钢板是治疗股骨转子间骨折的较好选择之一 ,可使骨折达到解剖复位和牢固的内固定 ,疗效良好。     

Bcl-2和Bax在胆管癌中的表达及意义

目的　检测 4 9例肝外胆管癌和 10例正常胆管Bcl 2和Bax的表达。方法　免疫组化ABC法。结果　Bcl 2在胆管癌中阳性表达 (48.98% )显著高于正常胆管 (10 .0 0 % ) (P <0 .0 5 ) ;高、中分化胆管癌Bcl 2阳性表达显著高于低分化癌 (P <0 .0 5 ) ;胆管癌Bax阳性表达 (5 3.0 6 % )与正常胆管 (80 .0 0 % )相比无统计学意义 (P >0 .0 5 ) ,正常胆管Bax阳性表达显著高于Bcl 2阳性表达 (P<0 .0 1) ,而胆管癌中Bcl 2与Bax阳性表达无显著性差异 (P >0 .0 5 )。结论　Bcl 2过度表达对胆管癌的发生可能起促进作用 ;胆管癌中Bcl 2低表达可能是预后不良的预测指标之一。     

胫骨干骨折带锁髓内钉固定和钢板螺钉固定的对比研究

目的：对照回顾性分析带锁髓内钉和钢板内固定两种方法治疗胫骨干骨折的效果。方法：髓内钉组32例（35处骨折）,根据AO分型,42A型11处,42B型18处,42C型6处;钢板组42例（45处骨折）,42A型10处,42B型22处,42C型13处。平均伤后手术时间在髓内钉和钢板组分别为3d和3.5d。随访评估患者手术时间,活动度,愈合时间,术后并发症之间的差别。结果：术后平均随访13个月（8～26个月）。髓内钉组平均手术时间为84min,钢板螺钉组平均为93min。髓内钉组踝关节平均背屈度为13°（0°～20°）,钢板组为11°（0°～20°）;跖屈分别为41°（30°～50°）,47°（30°～50°）。愈合时间髓内钉组平均为3.3个月,钢板螺钉平均为3.5个月。术后X线片显示髓内钉固定有1例出现旋转畸形,钢板组有3例出现成角畸形,均为胫骨远端1/3骨折。结论：在治疗胫骨骨折方面,带锁髓内钉和钢板内固定两种方法都可以取得理想的效果。     

Interleukin 17-Producing γδT Cells Increased in Patients with Active Pulmonary Tuberculosis

Although it has been known that y8 T cells may play an important role in the immune response to infection of Mycobacterium tuberculosis (M. tb), the mechanisms by which the T8 T cells participate in the innate and/or acquired immunity to tuberculosis (TB) have not been full elucidated. In the present study, 27 patients with active pulmonary TB and 16 healthy donors (HD) were performed. We found that proportion of IL-17-producing cells among lymphocyte was similar between TB patients and HD, whereas the proportions of γδ T cells in IL-17- producing cells (59.2%) and IL-17-producing cells in γδ T cells (19.4%) in peripheral blood were markedly increased in TB patients when compared to those in HD (43.9% and 7.7%, respectively). In addition, the proportions of IFN-γ-producing γδ T cells in TB patients were obviously lower than that in HD. Upon re-stimulated with M. tb heat-treated antigen (M. tb-HAg) in vitro, fewer IL-17-producing γδ T cells were generated from HD and TB patients, whereas IFN-γ-producing γδ T cells were increased in TB patients compared to that in HD. Our findings in TB patients and healthy human were consistent with other murine investigation that the IL-17- producing γδ T cells were main source of IL-17 in mouse model of BCG infection, suggesting that γδ T cells might be involved in the formation of tubercular granuloma in pulmonary TB patients, but need further identification. Cellular & Molecular Immunology. 2008;5(3):203-208.     

亚急性甲状腺炎的CT诊断

目的:探讨亚急性甲状腺炎的CT表现和特点,提高对该病影像表现的认识。材料和方法:回顾性分析10例亚急性甲状腺炎CT影像特征及临床资料,共16个病灶,其中9例经手术病理证实,1例临床证实。同时抽取局限型甲状腺癌65例,就部分征象作对照分析。结果:亚急性甲状腺炎局限性3例,弥漫性7例。CT表现分3型:①局限于甲状腺一侧叶的低密度病变,病变甲状腺肿大,峡部可受累,3例;②甲状腺两叶各有一低密度病变,呈不对称肿大,病灶之间有正常甲状腺组织,6例共12个病灶;③甲状腺两叶及岬部均匀肿大,略不对称,1例。CT平扫病变为低密度,增强扫描后呈轻到中度均匀强化(15/16),腺内更低密度结节少见(1/16)。病变处甲状腺边缘模糊(16/16),与正常甲状腺组织界限不清(15/16),而局限型甲状腺癌病灶与正常甲状腺腺组织分界清楚(62/65),两者极不一样(P<0.01)。结论:亚急性甲状腺炎CT表现有一定特点,熟悉这些特点对于诊断及鉴别诊断很有帮助。     

单一小切口带锁钉固定治疗"浮膝"损伤

[目的]探讨应用单一小切口治疗“浮膝”损伤的手术方法及手术适应证。[方法]对12例“浮膝”损伤病人采取C型臂X线机透视下闭合复位,膝关节屈曲30°~40°于髌韧带内侧缘做3~5 cm的切口,经股骨髁间窝逆行穿入股骨带锁钉;膝关节屈曲90°经同一切口向胫骨打入带锁钉。[结果]经过1~3年的随访,本组病人均骨性愈合,1例膝关节功能仅屈曲到90°,其它膝关节功能恢复到伤前水平。[结论]该术式创伤小,操作简单,固定牢固,能早期进行膝关节功能锻炼,早期对膝关节功能无影响,有无远期影响有待长期随访。     

Development and optimization of an indirect enzyme-linked immunosorbent assay for the determination of Hexoestrol

An indirect enzyme-linked immunosorbent assay (ELISA) for the detection of hexoestrol (HES) was developed, optimized and validated for the analysis of HES in pork. Many parameters, such as the volume ratio of solution A and solution B, colour developing time, pH value, incubation time, the volume ratio of the standard solution and diluted antiserum, blocking solution, blocking condition, coating solution and coating condition were studied and optimized in the paper. The regression equation of the final inhibition curve is y = - 0.3345x + 1.4955, R²=0.9913. The linear range is 0.1-8.1 ng/ml, and the IC₅₀ is 0.671 ng/ml. The specificity of the assay was evaluated by the cross-reactivity rates of six compounds, of which two structurally related compounds had a relatively higher cross-reactivity rate of 25% and 6%. HES was added into a pork sample at 5 ng/g level and then the sample was extracted. The recovery is between 49.6% and 79.2%, and the variation coefficient is 0.164.     

股前外侧区穿支动脉的形态学研究及皮瓣设计

目的探讨以旋股外侧动脉降支为蒂的皮瓣设计方法，以便增加术前多普勒定位的准确性。方法6具动脉灌注明胶-氧化铅混悬液的新鲜成人整尸标本，解剖观测股前外侧区穿支，通过血管造影术和拍摄X线片测量其直径、行程、分支和定位。用3D—doctor和Scion Image软件分别测量穿支供血的趋向性、三维重建和单穿支供血面积。结果股前外侧区共有外径大于0．5mm穿支16支，平均外径0．8mm，平均供血面积45．61cm^2，其中20％为肌间隙穿支，80％为肌皮穿支。平均蒂长为（3．15±1．43）cm。自旋股外侧动脉降支发出的穿支在浅筋膜中的平均长度为2．63cm。结论改良的氧化铅-明胶灌注技术可以为皮动脉和穿支皮瓣的研究提供高质量的血管造影图像。本研究发现股前外侧单穿支皮瓣的最大供血面积是30cm×20cm。以股前外侧区穿支设计的穿支皮瓣可以移植到下肢或身体其他部位。     

水面长航舰载保存血液生化指标的实验研究

目的探讨和观察经水面长航舰载保存血液出海前后对生化指标的影响与变化。方法随机采集和制备WB、AS-RBC和LP-RBC各18人份(200ml)。每份血液各等分为4袋,配对设计为实验组(A区、B区和C区)与对照组。分别于长航前和长航后进行血液生化指标检测。结果①K+和P3+浓度在三种血液制品的实验组与对照组各观察点的结果均随保存血液时间的延长而增高(P<0.05或P<0.01);Na+浓度由长航前的水平而逐步降低(P<0.01);P3+、Mg2+实验组和对照组较长航前增高,Cl-、Ca2+的含量与长航前没有显著变化;②LDH、AST、CKP和HBDH结果实验组和对照组均呈递增趋势,AKP结果实验组和对照组均呈下降表现,ALT与GGT结果在长航前后变化不明显;③Glu指标减低,UA呈上升趋势。结论长航对血液保存有一定的影响,但总的变化趋势与常规(4±2)℃血库冰箱保存相似。此项研究对于我们进一步探索海上血液保障与运输以及血液海上救护均具有十分重要的实用和军事价值。