【Abstract】ObjectiveTo explore the effect of hepatocyte growth factor/scatter factor (HGF/SF) on apoptosis of colorectal cancer cells induced with curcumin. MethodsMTT assay was used to evaluate the cytotoxicity of curcumin to colorectal cancer cells. Flow cytometry was used to detect the antiapoptosis effect of HGF. ResultsFlow cytometry showed only 64 μg/ml curcumin could play the proliferationinhibiting role in Caco-2 cells leading to their apoptosis; at the same time, different concentrations of HGF could antagonize this inhibitory effect resulting in the decrease of apoptosis, but HGF worked without a concentration-dependent manner. The study on MAPK pathway showed that the protective effect of HGF on the apoptosis of Caco-2 cells was not influenced by inhibiting p42/p44 MAPK and p38 MAPK pathway. ConclusionHGF/SF antagonizes the apoptosis of Caco-2 cells induced with curcumin, but MAPK signaling pathway might not participate in this process.
目的 探讨老年患者特发性结肠穿孔的临床特点。方法回顾性分析我科2000年5月至2010年5月期间收治的28例特发性结肠穿孔老年患者的临床资料。 结果28例患者中男16例,女12例; 年龄60~87岁,中位年龄69.2岁。所有患者表现为急性腹痛或腹膜炎; 术前5例确诊,23例误诊; 均行急诊剖腹探查手术,穿孔位于乙状结肠与直肠交界处有18例,位于降结肠4例,乙状结肠中段5例,直肠上段1例。 8例行穿孔部位结肠外置,再择期行二次手术; 16例行乙状结肠下段及直肠上段切除、结肠造瘘术; 4例行病变部位一期切除吻合、回盲部导管减压引流术。术后病理报告: 结肠壁局灶性炎性反应坏死,穿孔边缘清楚,肌层断裂整齐,黏膜剥脱,其中10例伴黏膜溃疡。 住院时间为2~4周,平均2.6周。 20例患者痊愈出院,死亡8例,其中4例死于中毒性休克,2例因吻合口漏并发腹腔脓肿死于严重感染和多器官功能衰竭,2例死于并发肺部感染、呼吸衰竭。 结论诊断性腹腔穿刺及CT检查对老年患者的特发性结肠穿孔诊断极为重要,一旦确诊或疑诊应尽早手术治疗。
目的 研究结直肠癌患者血清中肝细胞生长因子(hepatocyte growth factor,HGF)的表达水平及其与结直肠癌肝转移的关系。 方法 收集我院2006年9月至2009年1月期间手术治疗并经病理证实为结直肠癌患者35例,应用夹心ELISA法检测血清中HGF表达水平。 结果 血清中HGF表达在结直肠癌有远处转移者中为(0.37±0.11) ng/ml,明显高于无转移者的(0.20±0.06) ng/ml (Plt;0.05); T3、T4期者为(0.32±0.29) ng/ml,亦明显高于T1、T2期者的(0.20±0.14) ng/ml (Plt;0.05); 肝转移者为(0.43±0.10) ng/ml,明显高于其他部位转移者的(0.31±0.09) ng/ml (Plt;0.05)。 结论 血清HGF水平与结直肠癌发展及肝转移发生有密切关系,血清HGF水平有望作为监测结直肠癌转移的临床指标。