【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 研究結直腸癌患者血清中肝細胞生長因子(hepatocyte growth factor,HGF)的表達水平及其與結直腸癌肝轉移的關系。 方法 收集我院2006年9月至2009年1月期間手術治療并經病理證實為結直腸癌患者35例,應用夾心ELISA法檢測血清中HGF表達水平。 結果 血清中HGF表達在結直腸癌有遠處轉移者中為(0.37±0.11) ng/ml,明顯高于無轉移者的(0.20±0.06) ng/ml (Plt;0.05); T3、T4期者為(0.32±0.29) ng/ml,亦明顯高于T1、T2期者的(0.20±0.14) ng/ml (Plt;0.05); 肝轉移者為(0.43±0.10) ng/ml,明顯高于其他部位轉移者的(0.31±0.09) ng/ml (Plt;0.05)。 結論 血清HGF水平與結直腸癌發展及肝轉移發生有密切關系,血清HGF水平有望作為監測結直腸癌轉移的臨床指標。
目的 探討老年患者特發性結腸穿孔的臨床特點。方法回顧性分析我科2000年5月至2010年5月期間收治的28例特發性結腸穿孔老年患者的臨床資料。 結果28例患者中男16例,女12例; 年齡60~87歲,中位年齡69.2歲。所有患者表現為急性腹痛或腹膜炎; 術前5例確診,23例誤診; 均行急診剖腹探查手術,穿孔位于乙狀結腸與直腸交界處有18例,位于降結腸4例,乙狀結腸中段5例,直腸上段1例。 8例行穿孔部位結腸外置,再擇期行二次手術; 16例行乙狀結腸下段及直腸上段切除、結腸造瘺術; 4例行病變部位一期切除吻合、回盲部導管減壓引流術。術后病理報告: 結腸壁局灶性炎性反應壞死,穿孔邊緣清楚,肌層斷裂整齊,黏膜剝脫,其中10例伴黏膜潰瘍。 住院時間為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例因吻合口漏并發腹腔膿腫死于嚴重感染和多器官功能衰竭,2例死于并發肺部感染、呼吸衰竭。 結論診斷性腹腔穿刺及CT檢查對老年患者的特發性結腸穿孔診斷極為重要,一旦確診或疑診應盡早手術治療。