The global prevalence of HFE and non-HFE hemochromatosis estimated from analysis of next-generation sequencing data

Wallace, Daniel F. & Subramaniam, V. Nathan (2016) The global prevalence of HFE and non-HFE hemochromatosis estimated from analysis of next-generation sequencing data. Genetics in Medicine, 18(6), pp. 618-626.

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Abstract

Purpose:

The prevalence of HFE-related hereditary hemochromatosis (HH) among European populations has been well studied. There are no prevalence data for atypical forms of HH caused by mutations in HFE2, HAMP, TFR2, or SLC40A1. The purpose of this study was to estimate the population prevalence of these non-HFE forms of HH.

Methods:

A list of HH pathogenic variants in publically available next-generation sequence (NGS) databases was compiled and allele frequencies were determined.

Results:

Of 161 variants previously associated with HH, 43 were represented among the NGS data sets; an additional 40 unreported functional variants also were identified. The predicted prevalence of HFE HH and the p.Cys282Tyr mutation closely matched previous estimates from similar populations. Of the non-HFE forms of iron overload, TFR2-, HFE2-, and HAMP-related forms are predicted to be rare, with pathogenic allele frequencies in the range of 0.00007 to 0.0005. Significantly, SLC40A1 variants that have been previously associated with autosomal-dominant ferroportin disease were identified in several populations (pathogenic allele frequency 0.0004), being most prevalent among Africans.

Conclusion:

We have, for the first time, estimated the population prevalence of non-HFE HH. This methodology could be applied to estimate the population prevalence of a wide variety of genetic disorders.

Impact and interest:

4 citations in Scopus
4 citations in Web of Science®
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ID Code: 99741
Item Type: Journal Article
Refereed: Yes
Keywords: hemochromatosis, mutations, on-HFE hemochromatosis, next-generation sequencing, prevalence
DOI: 10.1038/gim.2015.140
ISSN: 1530-0366
Divisions: Current > Schools > School of Biomedical Sciences
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: © 2016 American College of Medical Genetics and Genomics
Deposited On: 12 Oct 2016 01:04
Last Modified: 29 Mar 2017 03:17

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