目的探究RGS20 mRNA在三阴性乳腺癌患者中的表达水平,并分析与临床预后的关系。方法随机收集2013年6月-2015年6月入院治疗三阴性乳腺癌的患者82例,采用qRT-PCR检测患者乳腺癌组织和癌旁正常组织中RGS20 m RNA的表达,采用免疫组化检测三...目的探究RGS20 mRNA在三阴性乳腺癌患者中的表达水平,并分析与临床预后的关系。方法随机收集2013年6月-2015年6月入院治疗三阴性乳腺癌的患者82例,采用qRT-PCR检测患者乳腺癌组织和癌旁正常组织中RGS20 m RNA的表达,采用免疫组化检测三阴性乳腺癌患者乳腺癌组织中RGS20的表达,并分析其表达与三阴性乳腺癌临床特征的关系及预后的影响。结果三阴性乳腺癌组织中RGS20 mRNA的表达显著高于癌旁组织(t=13.006,P=0.000);三阴性乳腺癌组织中RGS20阳性表达率为68.29%,显著高于癌旁组织15.85%(χ^2=46.260,P=0.000);三阴性乳腺癌患者不同淋巴结的转移情况、临床分期及Ki67百分比等临床病理特征中RGS20的表达具有显著性差异(χ^2=4.666、5.781、4.167,P=0.031、0.016、0.041);随访36个月,RGS20阳性表达的三阴性乳腺癌患者3年无疾病生存期(DFS)和3年总生存期(OS)均显著低于阴性表达的患者(Log-rankχ^2=3.904、4.957,P=0.048、0.026)。结论 RGS20在三阴性乳腺癌组织中过表达,其表达在不同淋巴结转移情况、临床分期及Ki67中表达百分比有显著差异,且RGS20阴性表达的三阴性乳腺癌患者生存时间明显较高,可作为三阴性乳腺癌潜在的治疗靶点和预后预测因子。展开更多
20（R）-ginsenoside-Rh2,ginsenoside-Rg3 and 20（S）-ginsenoside Rg3 were prepared by the hydrolysis of leaf saponins of Panax notoginseng（Burk.）F.H.Chen with solution of 50% acetic acid and then column chromatograph...20（R）-ginsenoside-Rh2,ginsenoside-Rg3 and 20（S）-ginsenoside Rg3 were prepared by the hydrolysis of leaf saponins of Panax notoginseng（Burk.）F.H.Chen with solution of 50% acetic acid and then column chromatography on silica gel.Their structures were characterized by spectroscopic analysis,chemical degradation and comparison with authentic samples.展开更多
文摘20（R）-ginsenoside-Rh2,ginsenoside-Rg3 and 20（S）-ginsenoside Rg3 were prepared by the hydrolysis of leaf saponins of Panax notoginseng（Burk.）F.H.Chen with solution of 50% acetic acid and then column chromatography on silica gel.Their structures were characterized by spectroscopic analysis,chemical degradation and comparison with authentic samples.
