腹腔镜下精索静脉高位电凝术

目的评价腹腔镜下精索静脉高位电凝术的效果及价值。方法回顾性分析150例腹腔镜精索静脉高位电凝术的治疗效果及恢复情况。结果150例手术均获成功,平均手术时间23.4 m in,出血极少,术后平均住院2.5 d;随访6~12月,6例复发,复发率为4%。结论腹腔镜下精索静脉高位电凝术具有效果好、容易操作、创伤小等优点,值得推广。     

三维CT血管造影诊断多发性颅内动脉瘤

目的研究CT血管造影(CTA)及容积重建技术(VR)对多发性颅内动脉瘤的临床应用价值。方法采用Siemens Plus16SomatomVolume Zoom型容积CT扫描机获得原始图像,采用容积重建成像技术(VR)进行三维重建,并辅助运用多轴面重建(MPR)。结果在1年间,通过3D-CTA诊断多发性动脉瘤10例。容积重建成像CTA清晰显示颅内动脉瘤、载瘤动脉、动脉瘤的形状和大小及其与邻近结构的解剖关系,在部分病例上要优于DSA。结论容积重建成像CTA是一种可靠、无创的快速诊断颅内多发性动脉瘤的方法,为急症手术提供了详实的影像学资料,可帮助制定治疗方案。     

恶性胃肠道间质瘤34例临床分析

目的探讨恶性胃肠道间质瘤临床、病理特点。方法回顾性分析2002—2004年收治的34例恶性胃肠道间质瘤的临床和病理资料。结果病人临床表现中腹痛与消化道出血较常见，发生部位最常见为小肠和胃；肿块平均直径10．2cm；术后均经病理学诊断为恶性。术后12例复发，4例死亡。结论肿瘤大小、位置、核分裂像、免疫组化指标是判断胃肠道间质瘤良、恶性的重要指标，对病人诊断为恶性或潜在恶性的胃肠道间质瘤必须进行包括手术治疗在内的综合治疗。     

腹腔镜保脾胰体尾切除八例的手术经验

目的总结保留脾脏腹腔镜胰体尾切除术的临床经验与手术技巧。方法自2003年11月至2008年2月,我们对8例胰体尾部良性占位病变患者施行保留脾脏腹腔镜胰体尾切除术。结果本组8例均在腹腔镜下完成,其中1例合并胆囊切除,1例合并右肾上腺肿瘤切除,1例合并子宫肌瘤挖出、左卵巢畸胎瘤挖出,1例合并子宫肌瘤挖出。本组手术时间120—290min,出血量150—600ml。术后住院时间3～9d,无胰漏发生。术后病理诊断：潴留性囊肿2例,浆液性囊腺瘤1例,黏液性囊腺瘤2例,上皮性囊肿2例,先天性囊肿1例。随访9～60个月,症状消失,未见复发。结论对于胰体尾部良性病变,可行保留脾脏的胰体尾部切除,对拥有丰富高级腹腔镜手术经验的术者,开展保留脾脏的腹腔镜胰体尾切除术是安全可行的。     

Rutin exhibits hepatoprotective effects in a mouse model of non-alcoholic fatty liver disease by reducing hepatic lipid levels and mitigating lipid-induced oxidative injuries

Nonalcoholic fatty liver disease (NAFLD) is characterized by excessive accumulation of hepatic lipids and oxidative injury of hepatocytes. Rutin is a natural flavonoid with significant roles in combating cellular oxidative stress and regulating lipid metabolism. The current study aims to investigate the molecular mechanisms underlying rutin's hypolipidemic and hepatoprotective effects in nonalcoholic fatty liver disease. Rutin treatment was applied to male C57BL/6 mice maintained on a high-fat diet and HepG2 cells challenged with oleic acid. Hepatic lipid accumulation was evaluated by triglyceride assay and Oil Red O staining. Oxidative hepatic injury was assessed by malondialdehyde assay, superoxide dismutase assay and reactive oxygen species assay. The expression levels of various lipogenic and lipolytic genes were determined by quantitative real-time polymerase chain reactions. In addition, liver autophagy was investigated by enzyme-linked immunosorbent assay. In both fat-challenged murine liver tissues and HepG2 cells, rutin treatment was shown to significantly lower triglyceride content and the abundance of lipid droplets. Rutin was also found to reduce cellular malondialdehyde level and restore superoxide dismutase activity in hepatocytes. Among the various lipid-related genes, rutin treatment was able to restore the expression of peroxisome proliferator-activated receptor alpha (PPAR-α) and its downstream targets, carnitine palmitoyltransferase 1 and 2 (CPT-1 and CPT-2), while suppressing those of sterol regulatory element-binding protein 1c (SREBP-1c), diglyceride acyltransfase 1 and 2 (DGAT-1 and 2), as well as acyl-CoA carboxylase (ACC). In addition, rutin was shown to repress the autophagic function of liver tissues by down-regulating key autophagy biomarkers, including tumor necrosis factor alpha (TNF-α), interleukin 1 beta (IL-1β). The experimental data demonstrated that rutin could reduce triglyceride content and mitigate oxidative injuries in fat-enriched hepatocytes. The hypolipidemic properties of rutin could be attributed to its ability to simultaneously facilitate fatty acid metabolism and inhibit lipogenesis.     

各类医用电气设备标准间电气安全指标的差异

本文统计了各类医用电气设备标准，分析了各标准间电气安全指标的差异，以指导临床工程师在不同医用电气设备的安全测试、维修或预防性维护丁作中采用合适的电气安全标准。     

HucMSC-Derived Exosomes Mitigate the Age-Related Retardation of Fertility in Female Mice

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葡萄糖激酶W257R突变致青少年发病的成人型糖尿病一家系分析

青少年发病的成人型糖尿病（MODY）是一类以常染色体显性模式遗传的单基因疾病，临床表现以无症状、轻度空腹血糖升高为特征，很少出现糖尿病并发症。本文报道一例中国人群中葡萄糖激酶（GCK）基因新发W257R突变所致的MODY。在先证者及父亲、弟弟中均发现GCK基因（Chr744187343）第7号外显子的杂合突变c.769T>C（p.W257R）。该家系中W257R突变在中国人群中为首发。