Molecular epidemiology of HFE gene polymorphic variants (C282Y, H63D and S65C) in the population of Espirito Santo, Brazil

作者：Alves L N R; Santos E V W; Stur E; Silva Conforti A M A; Louro I D^*

来源：Genetics and Molecular Research, 2016, 15(2): 15028189.

DOI：10.4238/gmr.15028189

• Hereditary hemochromatosis
• HFE gene
• Polymorphisms
• Iron overload
• Iron metabolism disorders
• Espirito Santo-Brazil

Hereditary hemochromatosis (HH) is an autosomal recessive disorder that leads to progressive iron accumulation and may cause cirrhosis, hepatocellular carcinoma, diabetes, and heart failure. Most cases of HH have been linked to mutations in genes associated with iron homeostasis. There have been three major variants in the high Fe (HFE) gene associated with the disease: C282Y, H63D and S65C. In this context, we aimed to evaluate the prevalence of the polymorphic variants (C282Y, H63D and S65C) of the HFE gene in the population of the Espirito Santo State (ES), Brazil by analyzing three different groups: general population (N = 120), Pomeranian descendants (N = 59), and patients with HH (N = 20). Using genomic DNA extracted from peripheral blood, polymorphic variant identification was performed by polymerase chain reaction-restriction fragment length polymorphism. Statistically significant differences were observed for genotype distribution of C282Y (P < 0.001) and H63D (P = 0.013) between the general population and the patients diagnosed with HH. This is the first study to analyze HFE gene allele frequencies for the general population, Pomeranian subpopulation, and patients with HH of ES, Brazil.

• 出版日期2016