Clinical application of an enzyme-linked immunosorbent assay detecting hepatoma-specific gamma-glutamyltransferase.
Hepatol Res
; 39(10): 979-87, 2009 Oct.
Article
em En
| MEDLINE
| ID: mdl-19624768
ABSTRACT
AIM:
To develop a sandwich enzyme-linked immunosorbent assay (ELISA) measuring hepatoma-specific datura stramonium agglutinin-tightly bounding gamma-glutamyltransferase (DSA-GGT) and evaluate its clinical application for hepatocellular carcinoma (HCC) diagnosis.METHODS:
Serum DSA-GGT concentrations were measured with the sandwich ELISA system in 96 patients with HCC, 240 patients with chronic liver diseases and 119 healthy subjects. The diagnostic performance of DSA-GGT for HCC was assessed using receiver operating characteristic (ROC) curves. The diagnostic accuracy of DSA-GGT was compared with serum alpha-fetoprotein (AFP).RESULTS:
The area under the ROC curve of DSA-GGT in discriminating patients with HCC from non-HCC was 0.865 (95% confidence interval 0.818-0.915, P < 0.001). Serum DSA-GGT was positive in 67 out of 96 patients with HCC and 23 out of 240 patients with non-HCC diseases. The sensitivity and specificity of DSA-GGT and AFP for the diagnosis of HCC were 69.8% and 90.5%, and 72.9% and 89.1%, respectively. A higher sensitivity (93.8%) in the identification of HCC was observed by combining DSA-GGT and AFP.CONCLUSION:
The sandwich ELISA system showed good reliability and reproducibility, and using the measurement, we found that serum DSA-GGT was a valuable marker of HCC, as a usable complementary to AFP. The sensitivity for identifying HCC could be significantly improved by combining DSA-GGT and AFP, and the combination could be used in large-scale screening for HCC in susceptible individuals.
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Base de dados:
MEDLINE
Tipo de estudo:
Prognostic_studies
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article