title: Investigation of volatile biomarkers in liver cancer blood using solid-phase microextraction and gas chromatography/mass spectrometry.
abstract: Solid-phase microextraction (SPME) followed by gas chromatography/mass spectrometry (GC/MS) was used for the detection of liver cancer volatile biomarkers. Headspace SPME conditions (fiber coating, extraction temperature and extraction time) and desorption conditions were optimized and applied to the determination of volatiles in human blood. Between the liver cancer group (n = 19) and the normal group (n = 18), positive rates of 19 volatile compounds among the total of 47 detected were found to be different with statistical significance (p < 0.05, chi-squared test). We suggested hexanal, 1-octen-3-ol and octane, of the 19 compounds, as biomarkers of liver cancer with clinical diagnostic value. The sensitivity and specificity of 94.7% and 100% for hexanal, 84.2% and 100% for 1-octen-3-ol, and 89.5% and 100% for octane were obtained, respectively, after the cutoff values had been properly established. These results show that SPME-GC/MS is a simple, rapid and sensitive method for the investigation of volatile disease markers in human blood.
authors: Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.
authors: Ruyi
authors: R
authors: Xue
authors: Ling
authors: L
authors: Dong
authors: Si
authors: S
authors: Zhang
authors: Chunhui
authors: C
authors: Deng
authors: Taotao
authors: T
authors: Liu
authors: Jiyao
authors: J
authors: Wang
authors: Xizhong
authors: X
authors: Shen
mesh_terms: D014408:Biomarkers, Tumor / Q000097:blood*; D006528:Carcinoma, Hepatocellular / Q000097:blood* / Q000175:diagnosis / Q000601:surgery; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D006801:Humans; D008113:Liver Neoplasms / Q000097:blood* / Q000175:diagnosis / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D052616:Solid Phase Extraction / Q000379:methods*; D014835:Volatilization
chemical_list: D014408:Biomarkers, Tumor