Serum Level Of Interleukin-13 Receptor Alpha 2 In Infants With Biliary Atresia - Is It Of Value?
CLINICAL AND EXPERIMENTAL HEPATOLOGY(2018)
Abstract
Aim of the study: We aimed to assess the utility of serum level IL-13Ra2 receptors as a non-invasive marker for early diagnosis of biliary atresia (BA) and selection of BA patients indicated for Kasai portoenterostomy.Material and methods: The study included 60 infants with neonatal cholestasis in three groups; early BA group (n = 20), delayed BA group (n = 20) and non-BA cholestasis group (n = 20). A fourth group of 20 healthy neonates (n = 20) served as controls. IL-13R alpha 2 was measured by enzyme-linked immunosorbent assay in all patients and controls.Results: The mean value of IL-13R alpha 2 was significantly higher in delayed BA group (11.05 +/- 10.9 ng/ml) compar-ed to early BA (0.34 +/- 0.37 ng/ml), non-BA (0.54 +/- 0.85 ng/ml) and control (0.24-0.2 ng/ml) groups. The levels of serum IL-13R alpha 2 increase with the severity of the degree of fibrosis. IL-13R alpha 2 at a cutoff level > 0.782 ng/ml could predict late fibrosis with accuracy of 77.55% (p < 0.0001). IL-13R alpha 2 could differentiate between preserved and disturbed liver architecture at a cut off value of more than 0.42 ng/ml with an accuracy of 81.6%.Conclusions: Serum IL-13R alpha 2 not a diagnostic marker for BA however it could be used as a noninvasive marker for detection of advanced liver fibrosis and presence of disturbed liver architecture that helps in patient selection for undergoing Kasai operation. Serum IL-13R alpha 2 could be a future therapeutic target for management of BA patients and any fibrotic liver disease.
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Key words
cholestasis, liver fibrosis, biliary atresia, interleukin-13R alpha 2, Kasai portoenterostomy
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