机构地区:[1]中国医学科学院肿瘤医院检验科,北京100021
出 处:《中华检验医学杂志》2011年第2期152-157,共6页Chinese Journal of Laboratory Medicine
基 金:TerryFox基金资助项目(LC2007833)
摘 要:目的 分析评价血清ProGRP、TPS和NSE在SCLC患者临床诊断和疗效监测中的临床意义。方法 分别采用化学发光法、ELISA法和电化学发光法测定51例SCLC患者(SCLC组,局限期患者36例,广泛期患者15例)、60例肺良性疾病患者(良性疾病对照组)及60名健康人(健康对照组)血清ProGRP、TPS和NSE浓度;分析评价3项指标在SCLC患者治疗前、化疗第1周期和第2周期的变化。结果局限期SCLC患者治疗前的血清ProGRP、TPS和NSE浓度分别为136.9(22.8~631.7)ng/L、78.2(56.4~114.6)U/L和28.1(20.9~46.1)μg/L;广泛期为1106.6(41.2~2161.1)ng/L、230.9(143.5~259.0)U/I.和81.1(34.3~140.0)¨g/L;肺良性疾病组为19.7(9.5~29.1)ng/L、48.7(17.9~95.4)U/L和12.1(1.2~13.9)μg/L;健康对照组为20.3(10.7~30.6)ng/L、50.3(19.5—70.7)U/L和11.7(1.1~13.4)μg/L;经Kruskal-Wallis检验,3项指标在各组间的差异均有统计学意义(,值分别为51.368、36.532和81.645,P均〈0.01);两个对照组分别与局限期SCLC比较,差异均有统计学意义(U值分别为491、827、609和476、831、585,P均〈0.05);两个对照组分别与广泛期SCLC比较,差异亦有统计学意义(U值分别为314:532、456和302、553、430,P均〈0.01)。血清ProGRP诊断SCLC的ROC曲线Auc为0.832±0.029(95%CI:0.774~0.890),以37.7,ng/L为临界值时,其敏感度、特异度、阳性预测值、阴性预测值和约登指数分别为71%(36/51)、97%(116/120)、90%(36/40)、89%(116/131)和67%。联合检测时,ProGRP+TPS+NSE、ProGRP+TPS、ProGRP+NSE和TPS+NSE组合的敏感度分别为92%、86%、92%和88%,特异度分别为77%、77%、92%和77%。经非参数Fridman检验,3项指标在不同治疗阶段的差异均有统计学意义�Objective To evaluate the clinical significance of serum levels of ProGRP, TPS and NSE in diagnosis and therapy monitoring in small cell lung cancer patients. Methods The levels of serum ProGRP, TPS and NSE in 51 SCLC patients (SCLC group) , 60 benign pulmonary disease patients (benign disease group ) and 60 healthy people (healthy group ) were determined using chemiluminescent immunoassay, ELISA and electrochemiluminescent immunoassay respectively. Blood samples were collected and detected prior to therapy, before the second course of chemotherapy and the third course of chemotherapy consecutively in all the 51 SCLC patients. Results The serum ProGRP, TPS and NSE concentrations prior to chemotherapy in limited stage SCLC (LSCLC) were 136.9(22. 8-631.7) ng/L, 78.2(56. 4-114. 6) U/L and 28. 1 (20. 9-46. 1 ) ~g/L, respectively; And in extensive stage SCLC patients (ESCLC) were 1 106. 6 (41.2-2 161.1 ) ng/L, 230. 9( 143.5-259. 0) U/L and 81.1 (34. 3-140. 0) μg/L, respectively. The serum concentrations of the 3 markers in benign disease group were 19.7 ( 9.5-29.1 ) ng/L, 48.7 ( 17.9- 95.4 ) U/L and 12. 1 ( 1.2-13.9 ) μg/L; and in healthy group were 20. 3 ( 10. 7-30. 6 ) ng/L, 50. 3 ( 19. 5- 70.7) U/L and 11.7 (1.1-13.4) μg/L, respectively. The Kruskal-Walfis test showed significantly statistical difference in different groups of the 3 tumor markers, Chi-Square were 51. 368,36. 532 and 8l. 645 (P 〈 0. 01 ). Significant statistically differences showed when the concentrations of the 3 marks of the 2 control group were compared with that of the LSCLC group ( U = 491, 827, 609 and 476, 831, 585, respectively, P 〈 0. 05 ). Differences were also statistically significant when the 2 control group compared with that of the ESCLC group (U =314, 532, 456 and 302, 553, 430, respectively, P 〈0. 01 ). The AUC of ProGRP was 0. 832 ±0. 029(95% CI:O. 774-0. 890). When cutoff value of ProGRP set as 37.7 ng/L, the diagnostic sensitivity, sp
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