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[Thyroid hormone resistance syndromes]

Juan Bernal1

  • 1Instituto de Investigaciones Biomédicas, CSIC-UAM y CIBER de enfermedades raras, Madrid, España. jbernal@iib.uam.es

Endocrinologia Y Nutricion : Organo De La Sociedad Espanola De Endocrinologia Y Nutricion
|April 5, 2011
PubMed

Insights

Thyroid hormone resistance syndromes involve genetic conditions with reduced tissue sensitivity to thyroid hormones. This review covers resistance due to receptor mutations, transport issues, or impaired conversion, discussing mechanisms and clinical strategies.

Area of Science:

  • Endocrinology
  • Genetics
  • Molecular Biology

Background:

  • Thyroid hormone resistance syndromes (THRS) are rare genetic disorders.
  • Characterized by decreased tissue sensitivity to thyroid hormones (T4 and T3).
  • Impacts metabolism, growth, and development.

Purpose of the Study:

  • Provide an updated review of THRS.
  • Discuss pathogenetic mechanisms of different resistance forms.
  • Outline clinical approaches for managing THRS.

Main Methods:

  • Literature review of genetic mutations affecting thyroid hormone action.
  • Analysis of transport and deiodinase pathways involved in thyroid hormone metabolism.
  • Synthesis of clinical data and therapeutic strategies.

Main Results:

  • Identified three main forms of THRS: TRβ gene mutations, impaired T4/T3 transport, and defective deiodinase activity.
  • Detailed pathogenetic mechanisms for each form.
  • Summarized current clinical diagnostic and management approaches.

Conclusions:

  • THRS encompass diverse genetic defects impacting thyroid hormone signaling.
  • Accurate diagnosis relies on understanding specific molecular defects.
  • Tailored clinical management is essential for improving patient outcomes.

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