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Discoveries Around the Hypothalamic-Pituitary-Thyroid Axis.

Jerome M Hershman1, Paolo Beck-Peccoz2

  • 1UCLA School of Medicine, Los Angeles, California, USA.

Thyroid : Official Journal of the American Thyroid Association
|January 30, 2023
PubMed
Summary
This summary is machine-generated.

The hypothalamic-pituitary-thyroid axis regulates thyroid hormones (THs) and euthyroid state. Abnormal thyrotropin (TSH) levels signal thyroid dysfunction, highlighting key historical discoveries.

Keywords:
HPT axisTRHTSHThyroid hormonesdisorder of thyroid gland functionnegative feedback mechanism

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Area of Science:

  • Endocrinology
  • Neuroendocrinology
  • Thyroidology

Background:

  • The hypothalamic-pituitary-thyroid axis is crucial for maintaining thyroid hormone (TH) homeostasis and the euthyroid state.
  • Thyrotropin (TSH), a pituitary hormone, governs thyroid gland activity.
  • TSH synthesis and secretion are regulated by thyrotropin-releasing hormone and TH negative feedback.

Purpose of the Study:

  • To summarize pivotal historical discoveries concerning the hypothalamic-pituitary-thyroid axis.
  • To underscore the significance of the American Thyroid Association in advancing the understanding of this axis.
  • To emphasize the diagnostic implications of abnormal TSH levels.

Main Methods:

  • Historical review of key scientific contributions.
  • Synthesis of established knowledge regarding the hypothalamic-pituitary-thyroid axis.
  • Analysis of the regulatory mechanisms of TSH secretion.

Main Results:

  • The intricate interplay between thyrotropin-releasing hormone and TH feedback significantly influences TSH release.
  • Aberrant serum TSH concentrations are indicative of underlying thyroid gland disorders.
  • Significant contributions from American Thyroid Association members have shaped our understanding of the axis.

Conclusions:

  • The hypothalamic-pituitary-thyroid axis is a complex regulatory system essential for thyroid health.
  • Monitoring TSH levels is a critical diagnostic approach for thyroid dysfunction.
  • Historical research has laid the foundation for current understanding and clinical practice related to the thyroid axis.