eISSN: 2449-8238
ISSN: 2392-1099
Clinical and Experimental Hepatology
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4/2019
vol. 5
 
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abstract:
Original paper

Expression of vascular endothelial growth factor A in liver tissues of infants with biliary atresia

Alif Allam
1
,
Mohammed El-Guindi
1
,
Hatem Konsowa
1
,
Dina El. Azab
1
,
Maha Allam
1
,
Tahany Salem
1
,
Haidy Mohammed Zakaria
2

  1. National Liver Institute, Menoufia University, Shebin El-koom, Menoufia, Egypt
  2. Quesna Central Hospital, Menoufia, Egypt
Clin Exp HEPATOL 2019; 5, 4: 308–316
DOI: https://doi.org/10.5114/ceh.2019.89476
Online publish date: 2019/11/08
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Aim of the study
Assessment of hepatic expression of vascular endothelial growth factor A (VEGF-A) in liver tissues of infants with biliary atresia (BA).

Material and methods
This retrospective study included 35 infants with BA (BA group), and 38 infants with cholestasis due to causes other than BA (non-BA group). All patients had undergone full history taking, through clinical examination, routine investigations and immunostaining of liver tissue for VEGF-A and cytokeratin 7 (CK7). The diagnosis of BA was confirmed by intraoperative cholangiography. In the non-BA group, other specific laboratory tests according to the expected etiology were done.

Results
Most of the BA group showed positive VEGF-A expression with variable degrees in both bile ducts (BDs; 80%), and arterial walls (AWs; 77.2%), while most of the non-BA group showed negative staining of VEGF in both BDs and AWs (89.5% and 86.8% respectively) (p < 0.0001). Positive VEGF expression in the portal structures in both BDs and AWs had 84.9% and 82.19% accuracy; respectively. The majority of BA group showed either grade II of positive cytokeratin-7 expression in liver tissues (45.7%) or grade III (34.3%), while most of the non-BA group showed grade I (71.1%) (p < 0.0001). Positive CK7 expression in > 25% of the liver tissues had 80.8% accuracy in discriminating between BA and non-BA.

Conclusions
VEGF-A expression in the portal structures in liver tissues in both BDs and AWs had very good accuracy in discriminating between BA and non-BA patients.

keywords:

growth factor, biliary atresia, cytokeratin
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