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  • Title: Intra-HLA recombinations in juvenile diabetes mellitus.
    Author: Rubinstein P, Nicholson JF, Suciu-Foca N.
    Journal: Diabete Metab; 1977 Sep; 3(3):199-204. PubMed ID: 913752.
    Abstract:
    Complete HLA and Bf typing of 18 families with juvenile diabetes mellitus (J.D.M.) showed that of 68 children, 9 bore recombinant haplotypes (13%). This frequency is significantly higher than the currently accepted 1.6% for intra-HLA recombinations with a p of 1.3 X 10(6) (binomial expansion) and may be related to the J.D.M. gene itself. Five of the nine crossovers were between HLA-A and B, and four between HLA-B and D. In one informative A/B recombination, Bf segregated with the HLA-B-D segment while in another two, it segregated in cis with HLA-A. This suggests the existence of two genetic sequences within the HLA region, one with Bf on the A site and a second one with Bf on the D site.
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