Abstract
Biliary atresia (BA) is a neonatal obliterative cholangiopathy of unknown etiology. Despite the Kasai procedure, hepatic fibrosis and portal hypertension (PH) still occur. Interleukin-8 (IL-8) is an important mediator of inflammation and immune response in human disease. The objective of this study was to investigate the potential role of IL-8 in the pathogenesis of the progressive, sclerosing, inflammatory process and fibrosis in BA. A total of 60 pediatric patients with BA and 15 healthy children were evaluated. The mean ages of BA patients and controls were 6.3±0.6 and 6.7±1.1 years, respectively. The patients were classified into two groups according to their clinical outcomes: patients with jaundice (total bilirubin ±25.5 μmol/l) and patients without jaundice (total bilirubin <25.5 μmol/l). The IL-8 levels in serum samples were determined by commercially available enzyme-linked immunosorbent assay. Serum IL-8 levels were higher in the BA patients than in healthy children (236.2±60.1 vs. 34.5±12.1 pg/ml, P<0.001). Patients with jaundice had lower levels of albumin but had greater levels of aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, and gamma glutamyl transpeptidase compared with patients without jaundice. Serum IL-8 levels in the jaundice group were significantly higher than in those without jaundice (516.5±130.0 vs. 49.3±10.4 pg/ml, P<0.0005). Furthermore, patients with PH had higher IL-8 levels than those without PH (378.1±102.2 vs. 106.6±48.4 pg/ml, P<0.005). In the jaundice-free group, IL-8 levels were elevated in patients with PH compared with those without PH (79.0±17.4 vs. 19.7±5.8 pg/ml, P<0.005). The present study demonstrated elevation of serum IL-8 levels in children with BA. Serum IL-8 levels were also higher in patients with jaundice compared with patients without jaundice. These findings suggest that IL-8 may play a significant role in the pathogenesis of BA.
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Acknowledgements
This study was supported by a grant from the Ratchadapiseksompotch Fund, Faculty of Medicine, Center for Excellence Research Fund, Chulalongkorn University, and the Thailand Research Fund, Senior Research Scholar. The authors are greatly thankful to the staff of the Center of Excellence in Viral Hepatitis Research, Chulalongkorn University and Chulalongkorn Memorial Hospital for their dedicated efforts in this study. We also would like to thank Venerable Dr. Mettanando Bhikkhu of Wat Nakprok, Bangkok for reviewing the manuscript.
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Honsawek, S., Chongsrisawat, V., Vejchapipat, P. et al. Serum interleukin-8 in children with biliary atresia: relationship with disease stage and biochemical parameters. Ped Surgery Int 21, 73–77 (2005). https://doi.org/10.1007/s00383-004-1329-x
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DOI: https://doi.org/10.1007/s00383-004-1329-x