目的探讨高水平篮球运动员创伤性前交叉韧带损伤关节镜术后的疗效。方法1991～1998年,国家级篮球运动员前交叉韧带损伤患者9例9膝,其中男4例,女5例;年龄20～27岁,平均25岁;从受伤到手术时间为1～21d,平均11d。均为训练和比赛过程中发生膝关节扭伤,其中合并半月板损伤5例,骨软骨损伤1例。所有患者均行X线、MRI检查,行关节镜下检查并同时实施手术。结果所有患者均在关节镜下行前交叉韧带重建术。术后Lysholm评分优6例、良2例、可1例。全部患者获得随访,随访时间10～18年,平均13年。无感染和再断裂病例。现有5名仍参加全国职业篮球联赛,其他4名从事教练工作。结论篮球运动员膝关节前交叉韧带损伤多为急性撕裂,关节镜下修复具有创伤小、恢复快等优点。远期随访疗效满意。

This study was conducted to investigate the paclitaxel loaded by hydrazone bonds in poly(ethylene glycol)-poly(caprolactone) micelles (mPEG-PCL-PTX) on proliferation and apoptosis of human lung cancer A549 cells and its possible mechanisms of anti-tumor activity. The cell proliferation was measured with MTT assay. Flow cytometry were used to analyze the cell cycle. The cell apoptosis was analyzed using Hoechst/P staining. The expression levels of apoptotic genes expression in the mitochondrial apoptosis pathway were detected by RT-PCR and Western blotting, respectively. The mPEG-PCL-PTX could inhibit the proliferation of A549 cells and promote the apoptosis. The Bax, caspase-3 protein expression were increased while Bcl-2 protein expression was decreased in A549 cells. Results showed that the polymer containing hydrazone bond is non-toxic in vitro, the mPEG-PCL-PTX micelles can inhibit the proliferation and induce the apoptosis of A549 cells. Key words: paclitaxel; micelle; A549 cell; proliferation; cell cycle; apoptosis

In order to simplify the technique of extracorporeal membrane oxygenation (ECMO) and apply extracorporeal life support ( ECLS) broadly for assisting the treatment of severe respiratory failure patients, we have developed a blood-gas exchanger (BGE) with the characteristics of small volume and simple structure. The exchange between blood and gas of BGE adopts cross-flowing model; blood flows along the outer hollow fiber and gas flows in the inner hollow fiber with the reverse direction of blood flowing. The interface of blood flow in and out was designed as the internal spiral, and the caliber of BGE is matched with the blood interface of dialysis. Thus it may successfully make single-use spiral connectors link up mutually in the extracorporeal blood circulation of dialysis, may help clinical operations become safe, convenient and easily-controlled, and may simplify the technique of EGMO.
Carbon Dioxide ; blood ; Equipment Design ; Extracorporeal Membrane Oxygenation ; instrumentation ; Humans ; Life Support Care ; instrumentation ; Oxygen ; blood