Enein Azza Aboul, El Dessouky Nermine A, Mohamed Khalda S, Botros Shahira K A, Abd El Gawad Mona F, Hamdy Mona, Dyaa Nehal
Clinical Pathology Department, Kasr El Ainy Medical School, Cairo, Egypt.
National Research Center, Cairo, Egypt.
Open Access Maced J Med Sci. 2016 Jun 15;4(2):226-31. doi: 10.3889/oamjms.2016.055. Epub 2016 Jun 1.
This study aimed to detect the most common HFE gene mutations (C282Y, H63D, and S56C) in Egyptian beta thalassemia major patients and its relation to their iron status.
The study included 50 beta thalassemia major patients and 30 age and sex matched healthy persons as a control group. Serum ferritin, serum iron and TIBC level were measured. Detection of the three HFE gene mutations (C282Y, H63D and S65C) was done by PCR-RFLP analysis. Confirmation of positive cases for the mutations was done by sequencing.
Neither homozygote nor carrier status for the C282Y or S65C alleles was found. The H63D heterozygous state was detected in 5/50 (10%) thalassemic patients and in 1/30 (3.3%) controls with no statistically significant difference between patients and control groups (p = 0.22). Significantly higher levels of the serum ferritin and serum iron in patients with this mutation (p = 001).
Our results suggest that there is an association between H63D mutation and the severity of iron overload in thalassemic patients.
本研究旨在检测埃及重型β地中海贫血患者中最常见的HFE基因突变(C282Y、H63D和S56C)及其与铁状态的关系。
本研究纳入50例重型β地中海贫血患者和30例年龄及性别匹配的健康人作为对照组。检测血清铁蛋白、血清铁和总铁结合力水平。通过聚合酶链反应-限制性片段长度多态性分析检测三种HFE基因突变(C282Y、H63D和S65C)。对突变阳性病例通过测序进行确认。
未发现C282Y或S65C等位基因的纯合子或携带者状态。在5/50(10%)的地中海贫血患者和1/30(3.3%)的对照组中检测到H63D杂合状态,患者组和对照组之间无统计学显著差异(p = 0.22)。该突变患者的血清铁蛋白和血清铁水平显著更高(p = 0.01)。
我们的结果表明,H63D突变与地中海贫血患者铁过载的严重程度之间存在关联。