目的 :分析结肠癌相关转录因子1(CCAT-1)m RNA在结直肠癌患者外周血中的表达水平与临床病理特征及预后生存的关联,探讨CCAT-1在结直肠癌早期筛查及病程预后评估中的作用。方法:采用实时定量PCR法(q PCR)检测结直肠癌(60例)、结直肠腺瘤...目的 :分析结肠癌相关转录因子1(CCAT-1)m RNA在结直肠癌患者外周血中的表达水平与临床病理特征及预后生存的关联,探讨CCAT-1在结直肠癌早期筛查及病程预后评估中的作用。方法:采用实时定量PCR法(q PCR)检测结直肠癌(60例)、结直肠腺瘤(30例)及健康志愿者(30例)外周血中CCAT-1 m RNA表达,采用ROC曲线判断CCAT-1对结直肠癌的诊断价值,计算Youden指数确定CCAT-1对结直肠癌的诊断阈值;采用双变量相关(bivariate correlation)Pearson检验分析CCAT-1m RNA表达水平与结直肠癌患者临床病理特征;采用Kaplan-Meier生存分析(Log-rank检验)分析CCAT-1 m RNA表达与结直肠癌患者3年生存率的相关性,绘制生存曲线。结果:结直肠癌患者外周血CCAT-1 m RNA水平相对于结直肠腺瘤患者(P<0.01)、健康志愿者(P<0.01)显著高表达,CCAT-1 m RNA在健康志愿者、结直肠腺瘤及结直肠癌患者外周血中的表达量呈逐渐递增趋势;结直肠癌患者外周血CCAT-1 m RNA表达量与肿瘤直径(P<0.05)、分化程度(P<0.01)、原发灶浸润深度(P<0.01)、淋巴结转移数(P<0.01)、远处转移(P<0.05)及TNM分期(P<0.05)呈显著正相关,与3年生存率呈负相关(P<0.05);CCAT-1 m RNA高表达组生存时间显著低于低表达组(P<0.01)。结论:CCAT-1可作为一种有价值的结直肠癌早期筛查及预后评估的标志物。展开更多
It has been emphasized that the assessment of residual liver function is of paramount importance to determine the following： severity of acute or chronic liver diseases independent of etiology; long-term prognosis; s...It has been emphasized that the assessment of residual liver function is of paramount importance to determine the following： severity of acute or chronic liver diseases independent of etiology; long-term prognosis; step-bystep disease progression; surgical risk; and efficacy of antiviral treatment. The most frequently used tools are the galactose elimination capacity to asses hepatocyte cytosol activity, plasma clearance of indocyanine green to assess excretory function, and antipyrine clearance to estimate microsomal activity. However, a widely accepted liver test （not necessarily a laboratory one） to assess quantitative functional hepatic reserve still needs to be established, although there have been various proposals. Furthermore, who are the operators that should order these tests？ Advances in analytic methods are expected to allow quantitative liver function tests to be used in clinical practice.展开更多
文摘目的 :分析结肠癌相关转录因子1(CCAT-1)m RNA在结直肠癌患者外周血中的表达水平与临床病理特征及预后生存的关联,探讨CCAT-1在结直肠癌早期筛查及病程预后评估中的作用。方法:采用实时定量PCR法(q PCR)检测结直肠癌(60例)、结直肠腺瘤(30例)及健康志愿者(30例)外周血中CCAT-1 m RNA表达,采用ROC曲线判断CCAT-1对结直肠癌的诊断价值,计算Youden指数确定CCAT-1对结直肠癌的诊断阈值;采用双变量相关(bivariate correlation)Pearson检验分析CCAT-1m RNA表达水平与结直肠癌患者临床病理特征;采用Kaplan-Meier生存分析(Log-rank检验)分析CCAT-1 m RNA表达与结直肠癌患者3年生存率的相关性,绘制生存曲线。结果:结直肠癌患者外周血CCAT-1 m RNA水平相对于结直肠腺瘤患者(P<0.01)、健康志愿者(P<0.01)显著高表达,CCAT-1 m RNA在健康志愿者、结直肠腺瘤及结直肠癌患者外周血中的表达量呈逐渐递增趋势;结直肠癌患者外周血CCAT-1 m RNA表达量与肿瘤直径(P<0.05)、分化程度(P<0.01)、原发灶浸润深度(P<0.01)、淋巴结转移数(P<0.01)、远处转移(P<0.05)及TNM分期(P<0.05)呈显著正相关,与3年生存率呈负相关(P<0.05);CCAT-1 m RNA高表达组生存时间显著低于低表达组(P<0.01)。结论:CCAT-1可作为一种有价值的结直肠癌早期筛查及预后评估的标志物。
文摘It has been emphasized that the assessment of residual liver function is of paramount importance to determine the following： severity of acute or chronic liver diseases independent of etiology; long-term prognosis; step-bystep disease progression; surgical risk; and efficacy of antiviral treatment. The most frequently used tools are the galactose elimination capacity to asses hepatocyte cytosol activity, plasma clearance of indocyanine green to assess excretory function, and antipyrine clearance to estimate microsomal activity. However, a widely accepted liver test （not necessarily a laboratory one） to assess quantitative functional hepatic reserve still needs to be established, although there have been various proposals. Furthermore, who are the operators that should order these tests？ Advances in analytic methods are expected to allow quantitative liver function tests to be used in clinical practice.
