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 Genetjournal_title
American journal of human geneticsauthors
Summers KM,Tam KS,Halliday JW,Powell LWsubject
Has Abstractpub_date
1989-07-01 00:00:00pages
41-8issue
1eissn
0002-9297issn
1537-6605journal_volume
45pub_type
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