摘要
目的探讨游离单不饱和脂肪酸棕榈油酸(c16:1)、油酸(c18:1)及顺式-8-二十碳烯酸(c20:1)在胸腔积液良恶性鉴别诊断中的价值。方法 60例胸腔积液患者,其中非小细胞肺癌30例为恶性积液组,肺结核30例为良性积液组。采用高效液相色谱串联质谱法对胸腔积液中游离单不饱和脂肪酸c16:1、c18:1及c20:1准确定量;电化学发光免疫分析法检测胸腔积液细胞角蛋白19片段(cytokeratin-19-fragment,CYFRA21-1)、甲胎蛋白(alpha fetoprotein,AFP)、糖蛋白抗原(carbohydrate antigen,CA)15-3、CA125、CA19-9水平,logistic回归分析评估c16:1、c18:1及c20:1对发生恶性胸腔积液的影响;ROC曲线分析c16:1、c18:1及c20:1鉴别胸腔积液良恶性的效能,并与临床常用肿瘤标志物CYFRA21-1、AFP、CA15-3、CA125、CA19-9进行比较。结果恶性积液组胸腔积液c16:1[(2.37±1.77)μmol/L]、c18:1[(63.34±23.56)μmol/L]、c20:1[(0.78±0.33)μmol/L]、CYFRA21-1[(263.77±200.01)μg/L)]、AFP[(2.24±0.88)μg/L)]、CA15-3[(115.75±87.34)u/mL]、CA125[(1 765.58±1 668.10)u/mL]和CA19-9[(296.93±436.44)u/mL]水平均高于良性积液组[c16:1(0.94±0.57)μmol/L、c18:1(27.03±12.90)μmol/L、c20:1(0.50±0.37)μmol/L、CYFRA21-1(58.40±48.66)μg/L、AFP(1.56±0.77)μg/L、CA15-3(12.81±6.91)u/mL、CA125(661.32±481.99)u/mL、CA19-9(3.46±3.12)u/mL](P<0.05);多因素logistic回归分析结果显示c16:1(OR=4.89,95%CI:1.867~12.807,P=0.001)、c18:1(OR=1.15,95%CI:1.072~1.238,P<0.001)、c20:1(OR=18.03,95%CI:2.063~157.528,P=0.009)是发生恶性胸腔积液的影响因素;ROC曲线分析结果显示,c16:1以0.87μmol/L为最佳截断值,其诊断恶性胸腔积液的AUC为0.818(95%CI:0.714~0.923,P<0.001),灵敏度、特异度分别为93.3%、53.3%;c18:1以45.30μmol/L为最佳截断值,其诊断恶性胸腔积液的AUC为0.936(95%CI:0.879~0.993,P<0.001),灵敏度、特异度分别为83.3%、90.0%;c20:1以0.40μmol/L为最佳截断值,其诊断恶性胸腔积液的AUC为0.816(95%CI:0.705~0.927,P<0.001),灵敏度、�
Objective To investigate the value of free monounsaturated fatty acids (free-MUFAs) palmitoleic acid (c16: 1), oleic acid (c18:1) and 8-eicosenoic acid (c20:1) to the differential diagnosis of benign and malignant pleural effusion (BPE, MPE). Methods In 60 patients with pleural effusion, there were 30 patients with non-small cell lung cancer (MPE group) and 30 patients with pulmonary tuberculosis (BPE group). The free-MUFAs c16 : l, c18 : 1 and c20 : 1 in pleural effusions were accurately quantified by using high performance liquid chromatography tandem mass spectrometry, and the levels of cytokeratin-19-fragment (CYFRA21-1), alpha fetoprotein (AFP), carbohydrate antigen (CA)15-3, CA125 and CA19-9 were detected by electrochemiluminescence immunoassay. The influences of c16:1, c18:1 and c20:1 on MPE were evaluated by logistic regression analysis. The diagnostic efficiencies of them were analyzed by ROC curve, and were compared with the efficiencies of CYFRA21-1, AFP, CA15-3, CA125 and CA19-9. Results The levels of cl6:l ((2.37±1. 77)μmol/L), c18:1 ((63. 34 ±23. 56)μmol/L), c20:1 ((0. 78±0. 33) μmol/L), CYFRA21-1 ((263.77±200. 01)/μg/L), AFP ((2. 24±0. 88)μg/L), CA15-3 ((115. 75±87. 34)u/mL), CA125((1765. 58±1 668.10)u/mL) and CA19-9 ((296. 93±436.44)u/mL) in MPE group were significantly higher than those in BPE group ((0. 94±0. 57)μmol/L, (27. 03±12. 90)μmol/L, (0. 50±0. 37)μmol/L, (58. 40±48. 66)μg/L, (1. 56± 0.77)μg/L, (12.81±6.91)u/mL, (661. 32±481.99)u/mL, (3.46±3. 12)u/mL) (P〈0.05). Multivariate logistic regression analysis showed that c16:1 (OR:4.89, 95%CI: 1.867-12.807, P=0.001), c18:1 (OR:I. 15, 95%CI: 1. 072-1. 238, P〈0. 001) and c20:1(OR=18.03, 95%CI.. 2. 063-157. 528, P:0. 009) were the influencing factors for the occurrence of MPE. When the optimal cut-off values of c16:1, c18�
作者
颜清
杨紫伟
戴锦娜
YAN Qing;YANG Zi-wei;DAI Jin-na(Department of Laboratory,the First Affiliated Hospital of China Medical University,Shenyang 110001,China)
出处
《中华实用诊断与治疗杂志》
2018年第8期751-754,共4页
Journal of Chinese Practical Diagnosis and Therapy
基金
国家自然科学基金(81501801)
关键词
非小细胞肺癌
肺结核
胸腔积液
棕榈油酸
油酸
顺式-8-二十碳烯酸
液相色谱串联质谱
Non-small cell lung cancer
pulmonary tuberculosis
pleural effusion
palmitoleic acid
oleic acid
8-eicosenoic acid
liquid chromatography tandem mass spectrometry