Abstract
Background: The aim of this study was to reveal the frequency of Necrosis Factor _Alpha Gene Polymorphism in evaluation of severity and outcome of chronic immune thrombocytopenia in pediatric department of Zagazig University hospitals. Methods: We conduct a retrospective case control on 40 children diagnosed with chronic ITP and 40 age and sex healthy matched subjects as a control recruited from outpatient hematology clinic Faculty of Medicine, Zagazig University. Results: We found a highly significant difference between ITP group and control group as regarding TNF-α alleles where A allele was expressed in 43.7% of cases versus 17.5% 0f control, P value
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