Rapid localization of mutations in the thyroid hormone receptor-beta gene by denaturing gradient gel electrophoresis in 18 families with thyroid hormone resistance.
This study was undertaken to test the usefulness of SHBG determinations to define the thyroid status in two hyperthyroxinemic states: thyroid hormone resistance (THR) and familial dysalbuminemic hyperthyroxinemia (FDH).
Competitive polymerase chain reaction quantitation of c-erbA beta 1, c-erbA alpha 1, and c-erbA alpha 2 messenger ribonucleic acid levels in normal, heterozygous, and homozygous fibroblasts of kindred S with thyroid hormone resistance.
Furthermore, when several clinical parameters of THR were compared in several affected members from two kindreds with GRTH, we found that two cases in one kindred exhibited a high mutant-to-normal hTR beta ratio and had considerably more bone resistance during their development.
Furthermore, when several clinical parameters of THR were compared in several affected members from two kindreds with GRTH, we found that two cases in one kindred exhibited a high mutant-to-normal hTR beta ratio and had considerably more bone resistance during their development.
Enhanced levels of wild-type versus mutant thyroid hormone receptor beta 1 messenger RNA in fibroblasts from heterozygotes of kindred S with thyroid hormone resistance.
Periodically hyperthyroid phenotype in thyroid hormone resistance is associated with mutation D322N in the thyroid hormone receptor beta gene: transcriptional properties of the mutant and the role of retinoid X receptor.
Periodically hyperthyroid phenotype in thyroid hormone resistance is associated with mutation D322N in the thyroid hormone receptor beta gene: transcriptional properties of the mutant and the role of retinoid X receptor.
Particular emphasis is given to the clinical and hormonal outcome after 2 years of triiodothyroacetic acid (TRIAC) treatment in an affected child with peripheral thyrotoxic features (pituitary RTH [PRTH]).
Particular emphasis is given to the clinical and hormonal outcome after 2 years of triiodothyroacetic acid (TRIAC) treatment in an affected child with peripheral thyrotoxic features (pituitary RTH [PRTH]).
These data demonstrate that thyroid hormone resistance at the level of TRH gene regulation, due to reduced inhibitory actions of mutant TR-T3 complexes, as well as dominant negative effects upon WT hTR beta 1 mediated inhibition, likely contribute to elevated TSH values observed in the syndrome of thyroid hormone resistance.
Thyroid hormone resistance was found to be expressed at the level of TRH gene regulation, due to lowered inhibition by mutant TRbeta1-T3 complexes and by their dominant negative effects on wild-type TRbeta1-T3 inhibition.
T426I a new mutation in the thyroid hormone receptor beta gene in a sporadic patient with resistance to thyroid hormone and dysmorphism. Mutations in brief no. 192. Online.