HLA determinants in an Australian population of hemochromatosis patients and their families.

Abstract:

:The frequencies of different HLA-A and -B alleles in 77 Australian patients with hemochromatosis have been compared with frequencies of HLA alleles not associated with hemochromatosis in 63 of their heterozygous relatives and with published population frequencies. As for all other populations reported, an association of HLA-A3 and HLA-B7 with the disease was found. A weak association with HLA-B12 was also detected. No other significant positive or negative associations with HLA alleles were detected. In addition, HLA-A2 and -B12 were in significant linkage disequilibrium in patients but not in controls, which may indicate a new mutation or recent recombination between HLA-A and hemochromatosis either in our patient group or in the founding population. HLA-A1 and -B8 and HLA-A29 and -B12 were in linkage disequilibrium in controls but not in patients, suggesting that this population is not segregating a hemochromatosis allele on either of these haplotypes. Genetic linkage analysis using the program LIPED showed strong linkage in 23/24 families, most of which had additional HLA alleles (other than A3 and B7) associated with hemochromatosis. This provides evidence for a single hemochromatosis locus, possibly with more than one allele.

journal_name

Am J Hum Genet

authors

Summers KM,Tam KS,Halliday JW,Powell LW

subject

Has Abstract

pub_date

1989-07-01 00:00:00

pages

41-8

issue

1

eissn

0002-9297

issn

1537-6605

journal_volume

45

pub_type

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