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  • Title: Spontaneous autoimmune thyroiditis in obese strain chickens: a genetic analysis of target organ abnormalities.
    Author: Neu N, Hála K, Dietrich H, Wick G.
    Journal: Clin Immunol Immunopathol; 1985 Dec; 37(3):397-405. PubMed ID: 4053427.
    Abstract:
    In this study we investigated the genetic background of primary abnormalities found in the thyroid gland of Obese strain (OS) chickens with spontaneous autoimmune thyroiditis (SAT), i.e., susceptibility to passively transferred antibodies to thyroglobulin (TgAb) and incomplete suppression of iodine uptake by thyroxine (T4). Several crosses between the B15/B15 subline of OS chickens and the inbred CB line (B12/B12) were done and the progeny was analyzed for thyroiditis after injection of OS serum containing high titers of TgAb. It was found that passive transfer of TgAb increased the lymphoid infiltration in the thyroids of OS chickens, but had no effect on CB birds. A genetic analysis of backcrosses revealed that this trait is, in the case of simple Mendelian inheritance, encoded by at least three recessive genes. The thyroidal 131I uptake of these crosses under T4 was also determined and we found that this trait is most probably encoded by only one recessive gene.
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