The hypothyroidism in an inbred kindred with congenital thyroid hormone and glucocorticoid deficiency is due to a mutation producing a truncated thyrotropin receptor

Dov Tiosano, Silvana Pannain, Gilbert Vassart, Jasmine Parma, Ruth Gershoni-Baruch, Hanna Mandel, Rachel Lotan, Yunes Zaharan, Menuha Pery, Roy E Weiss, Samuel Refetoff, Ze'ev Hochberg

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

Growth and function of the thyroid and adrenal glands are maintained and controlled by thyrotropin (TSH) and adrenocorticotrophic hormone (ACTH), respectively. The action of these trophic hormones requires the presence of functional TSH and ACTH receptors. We describe a large inbred Bedouin kindred in which profound congenital hypothyroidism and hypoadrenocortisolism occurred alone or together in eight family members belonging to four nuclear families. The high serum TSH and ACTH levels in the presence of normal or hypoplastic thyroid glands and low glucocorticoid, but not mineralocorticoid concentrations, are characteristic of resistance to TSH and ACTH. Linkage analysis, using specific polymorphic markers, excluded the involvement of the ACTH receptor but not thyrotropin receptor (TSHR). A novel point mutation was identified in exon 10 of the TSHR that replaces the normal cytosine in nucleotide 2024 with a thymidine. As a result the normal arginine in codon 609 (CGA) is replaced with a stop codon (TGA). This mutation produces a truncated TSHR lacking the third intracellular and extracellular loops, the sixth and seventh transmembrane segments, and the intracytoplasmic tail. The presence of hypothyroidism did not affect the timing, severity, and manner of clinical manifestation of hypoadrenocortisolism.

Original languageEnglish (US)
Pages (from-to)887-894
Number of pages8
JournalThyroid
Volume9
Issue number9
StatePublished - 1999
Externally publishedYes

Fingerprint

Thyrotropin Receptors
Hypothyroidism
Thyroid Hormones
Adrenocorticotropic Hormone
Glucocorticoids
Mutation
Thyroid Gland
Cytosine Nucleotides
Congenital Hypothyroidism
Mineralocorticoids
Terminator Codon
Thyrotropin
Adrenal Glands
Nuclear Family
Point Mutation
Codon
Thymidine
Arginine
Exons
Hormones

ASJC Scopus subject areas

  • Endocrinology

Cite this

Tiosano, D., Pannain, S., Vassart, G., Parma, J., Gershoni-Baruch, R., Mandel, H., ... Hochberg, Z. (1999). The hypothyroidism in an inbred kindred with congenital thyroid hormone and glucocorticoid deficiency is due to a mutation producing a truncated thyrotropin receptor. Thyroid, 9(9), 887-894.

The hypothyroidism in an inbred kindred with congenital thyroid hormone and glucocorticoid deficiency is due to a mutation producing a truncated thyrotropin receptor. / Tiosano, Dov; Pannain, Silvana; Vassart, Gilbert; Parma, Jasmine; Gershoni-Baruch, Ruth; Mandel, Hanna; Lotan, Rachel; Zaharan, Yunes; Pery, Menuha; Weiss, Roy E; Refetoff, Samuel; Hochberg, Ze'ev.

In: Thyroid, Vol. 9, No. 9, 1999, p. 887-894.

Research output: Contribution to journalArticle

Tiosano, D, Pannain, S, Vassart, G, Parma, J, Gershoni-Baruch, R, Mandel, H, Lotan, R, Zaharan, Y, Pery, M, Weiss, RE, Refetoff, S & Hochberg, Z 1999, 'The hypothyroidism in an inbred kindred with congenital thyroid hormone and glucocorticoid deficiency is due to a mutation producing a truncated thyrotropin receptor', Thyroid, vol. 9, no. 9, pp. 887-894.
Tiosano, Dov ; Pannain, Silvana ; Vassart, Gilbert ; Parma, Jasmine ; Gershoni-Baruch, Ruth ; Mandel, Hanna ; Lotan, Rachel ; Zaharan, Yunes ; Pery, Menuha ; Weiss, Roy E ; Refetoff, Samuel ; Hochberg, Ze'ev. / The hypothyroidism in an inbred kindred with congenital thyroid hormone and glucocorticoid deficiency is due to a mutation producing a truncated thyrotropin receptor. In: Thyroid. 1999 ; Vol. 9, No. 9. pp. 887-894.
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