1998
DOI: 10.1530/eje.0.1380353
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Activating mutations of the thyrotropin receptor: a short review with emphasis on some pediatric aspects

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Cited by 11 publications
(6 citation statements)
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“…In our index patient, developmental delay, myopathy, hepatomegaly and hepatic dsyfunction resolved with the remission of hyperthyroidism. The absence of thyroid autoantibodies is regarded as a cardinal feature of NAH associated with activating TSHR mutation (Polak, 1998). However, our report illustrates that the presence of thyroid autoantibodies, which are prevalent in up to 10% of the population (Hollowell et al ., 2002), on its own should not be regarded as evidence against the diagnosis of this condition.…”
Section: Discussionmentioning
confidence: 99%
“…In our index patient, developmental delay, myopathy, hepatomegaly and hepatic dsyfunction resolved with the remission of hyperthyroidism. The absence of thyroid autoantibodies is regarded as a cardinal feature of NAH associated with activating TSHR mutation (Polak, 1998). However, our report illustrates that the presence of thyroid autoantibodies, which are prevalent in up to 10% of the population (Hollowell et al ., 2002), on its own should not be regarded as evidence against the diagnosis of this condition.…”
Section: Discussionmentioning
confidence: 99%
“…A cintilografia de tireóide na doença de Graves mostra uma distribuição difusa e homogênea do isótopo com valores aumentados de captação com 131 I (4). Mutações no gene do receptor do TSH ou do gene da sub-unidade α da proteína G podem levar a um hipertireoidismo por estimulação constitutiva da adenilciclase e aumento dos níveis de AMPc intracelular (8). Se a mutação é germinativa, o quadro clínico resultante pode ser de um hipertireoidismo congênito intenso (8).…”
Section: Considerações Gerais Sobre O Hiper-tireoidismo Em Crianças Eunclassified
“…Mutações no gene do receptor do TSH ou do gene da sub-unidade α da proteína G podem levar a um hipertireoidismo por estimulação constitutiva da adenilciclase e aumento dos níveis de AMPc intracelular (8). Se a mutação é germinativa, o quadro clínico resultante pode ser de um hipertireoidismo congênito intenso (8). Em outros casos pode ocorrer uma forma menos exuberante de hipertireoidismo, que é transmitida de forma autossômica nos casos de mutação do receptor do TSH ou fazer parte da síndrome de McCune Albright nos casos de mutação do gene da sub-unidade α da proteína G (8).…”
Section: Considerações Gerais Sobre O Hiper-tireoidismo Em Crianças Eunclassified
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“…In the thyroid, activating mutations of the TSH receptor and its coupled G protein Gsa (gsp) have been reported in up to 80% and 25% respectively of autonomously functioning thyroid nodules (1)(2)(3)(4), but only in a small proportion of other types of thyroid tumours (5)(6)(7)(8)(9). In the pituitary, gsp mutations have been reported to occur in 30-40% of somatotroph adenomas (10, 11), 10-13% of nonfunctioning tumours (12,13) and 6% of corticotroph adenomas (14).…”
Section: Introductionmentioning
confidence: 99%