Abstract
The explore the molecular basis of iron-overload in Tibet nationality population of Tibet. The inpatients with iron-overload in our department from Dec. 1st 2014 to Jul.31st 2016 were enrolled in this study. Abdominal MRI and the mutation sites C282Y and H63D in HFE exon were examined. For HFE mutation-negative patients, the non-HFE mutation was detected, including 5 HJV mutations of G320V, p.Q312X, p.D249H, p.I281T, p.C321X and 2 TFR2 mutations: (Y250X, I238M), and 2 SLC40A1 mutations: (V162del, N144H). Among 113 iron overload patients, only one showed homozygous p.H63D mutation, and one showed heterozygosis p.H63D mutation. In 73 patients accepted non-HFE gene detection, only one was heterozygosis p.D249N mutation in HJV, and one was heterozygosis p.I238M mutation in TFR2. Currently, the pathogenic gene for Tibetan iron-overload has not yet been found.
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