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  • Title: Combination of alpha-1-acid glycoprotein and alpha-fetoprotein as an improved diagnostic tool for hepatocellular carcinoma.
    Author: Bachtiar I, Santoso JM, Atmanegara B, Gani RA, Hasan I, Lesmana LA, Sulaiman A, Gu J, Tai S.
    Journal: Clin Chim Acta; 2009 Jan; 399(1-2):97-101. PubMed ID: 18926809.
    Abstract:
    BACKGROUND: To evaluate the diagnostic value of alpha-1-acid glycoprotein (AAG) and the combination with alpha-fetoprotein (AFP) in hepatocellular carcinoma (HCC) patients. METHODS: AAG was measured in serum of 65 HCC patients and 54 chronic liver diseases (CLD) patients by using proteomic approach. Sensitivity and specificity of AAG and its combination with AFP were determined and compared with AFP alone for the diagnosis of HCC. RESULTS: The expression concentration of AAG was significantly higher in HCC patients than chronic liver disease with sensitivity (77%) and accuracy (83%). Receiver operating characteristic analysis yielded the following AUC: AFP 0.750 (CI 95% 0.663-0.837), AAG 0.907 (CI 95% 0.855-0.960) and AFP+AAG 0.943 (CI 95% 0.897-0.988). At a specificity of 90%, the combination of AFP+AAG had sensitivity 89% and accuracy 90%, which was higher than sensitivity (52.3%) and accuracy (70%) when using AFP alone. CONCLUSION: The combination of AAG and AFP shows high sensitivity and improves the accuracy of HCC diagnosis.
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