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Related Concept Videos

Hyperthyroidism II: Pathophysiology01:27

Hyperthyroidism II: Pathophysiology

Hyperthyroidism is a hypermetabolic state caused by elevated levels of thyroid hormones, triiodothyronine (T3) and thyroxine (T4). It results from dysregulation at the thyroid, pituitary, or immune system level and affects multiple organ systems.PathophysiologyThe most common cause of hyperthyroidism is Graves’ disease, an autoimmune disorder in which antibodies, specifically thyroid-stimulating antibodies (TSAb), a subtype of TSH receptor antibodies (TRAb), bind to and activate TSH receptors...
Hyperthyroidism I: Introduction01:25

Hyperthyroidism I: Introduction

Hyperthyroidism is a type of thyrotoxicosis characterized by the thyroid gland's overproduction of the thyroid hormones triiodothyronine (T3) and thyroxine (T4). This hormone excess increases the basal metabolic rate and enhances sensitivity to catecholamines.DiagnosisDiagnosis is based on clinical features and biochemical testing. It typically shows suppressed thyroid-stimulating hormone (TSH) levels below 0.4 mIU/L, with elevated free T3 and/or T4. Additional tests, including thyroid...
Hypothyroidism II: Pathophysiology01:23

Hypothyroidism II: Pathophysiology

Hypothyroidism is a disorder characterized by insufficient production of thyroid hormones, which regulate metabolism, energy balance, and multiple organ systems.TypesHypothyroidism is classified based on the level of dysfunction. Primary hypothyroidism results from intrinsic thyroid gland dysfunction, causing reduced hormone production despite normal or increased stimulation. Secondary hypothyroidism arises from inadequate thyroid-stimulating hormone (TSH) secretion by the pituitary. Tertiary...
Graves' Disease I: Introduction01:28

Graves' Disease I: Introduction

Graves' disease is an autoimmune disorder that causes hyperthyroidism, or overactivity of the thyroid gland. It results from autoantibodies called thyroid-stimulating immunoglobulins (TSIs), which bind to thyroid-stimulating hormone (TSH) receptors, leading to overstimulation of hormone production and a hypermetabolic state.EtiologyAlthough considered idiopathic, Graves’ disease has well-established contributing factors. There is a strong genetic component, with increased prevalence in...
Graves Disease II: Pathophysiology01:24

Graves Disease II: Pathophysiology

Graves’ disease is an autoimmune disorder characterized by the production of thyroid-stimulating immunoglobulins (TSI) that activate TSH receptors, leading to excessive synthesis and release of thyroid hormones (T3 and T4) and resulting in hyperthyroidism.Among all causes of hyperthyroidism, Graves’ disease is the most common and can happen at any age, though it is more frequent in women. It produces a hypermetabolic state with features such as weight loss, tachycardia, tremor, and heat...
Adrenal Gland Disorders01:27

Adrenal Gland Disorders

Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...

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Related Experiment Video

Updated: May 18, 2026

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
04:39

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

Published on: March 17, 2023

Thyroid disorders.

Alois Gessl1, Rosa Lemmens-Gruber, Alexandra Kautzky-Willer

  • 1Department of Internal Medicine III, Medical University Of Vienna, Vienna, Austria.

Handbook of Experimental Pharmacology
|October 3, 2012
PubMed
Summary
This summary is machine-generated.

Thyroid diseases like hyperthyroidism and hypothyroidism are more common in women. Treatment differences exist, with women risking fractures and men facing atrial fibrillation if doses are incorrect.

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Synchronous Triplanar Reconstruction Integrated with Color Doppler Mapping for Precise and Rapid Localization of Thyroid Lesions
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Synchronous Triplanar Reconstruction Integrated with Color Doppler Mapping for Precise and Rapid Localization of Thyroid Lesions

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Last Updated: May 18, 2026

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
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Synchronous Triplanar Reconstruction Integrated with Color Doppler Mapping for Precise and Rapid Localization of Thyroid Lesions
05:41

Synchronous Triplanar Reconstruction Integrated with Color Doppler Mapping for Precise and Rapid Localization of Thyroid Lesions

Published on: February 9, 2024

Area of Science:

  • Endocrinology
  • Reproductive Health
  • Internal Medicine

Background:

  • Thyroid diseases exhibit a significant sex disparity, being more prevalent in women than men, though underlying reasons remain unclear.
  • Hyperthyroidism, characterized by elevated thyroid hormones, affects approximately 2% of women and 0.2% of men, often due to thyroid autonomy or Graves' disease in younger women.
  • Hypothyroidism, a deficiency in thyroid hormones, stems from autoimmune thyroiditis, iodine deficiency, or post-surgical/radioiodine treatment, impacting hormone replacement needs.

Purpose of the Study:

  • To summarize the epidemiology and clinical considerations of thyroid diseases in women compared to men.
  • To highlight sex-specific differences in the causes, prevalence, and treatment outcomes of hyperthyroidism and hypothyroidism.
  • To emphasize the importance of tailored thyroid function monitoring during pregnancy and potential adverse effects of overtreatment in both sexes.

Main Methods:

  • Review of existing literature on thyroid disease prevalence and pathophysiology.
  • Analysis of sex-based differences in common etiological factors for hyperthyroidism and hypothyroidism.
  • Examination of gender-specific considerations in thyroid hormone replacement therapy and associated risks.

Main Results:

  • Hyperthyroidism is more common in women, with causes varying by age group.
  • Hypothyroidism treatment requires dose adjustments based on body composition, potentially leading to undertreatment in men.
  • Maternal thyroid dysfunction during pregnancy poses risks to fetal development, necessitating careful monitoring with adjusted TSH ranges.
  • Overtreatment of thyroid disease is linked to fractures in women and atrial fibrillation in men.

Conclusions:

  • Thyroid disease management requires a sex-specific approach due to differing prevalence, causes, and treatment-related risks.
  • Accurate thyroid hormone replacement is crucial, considering factors like body mass and pregnancy status.
  • Further research is needed to fully elucidate the biological mechanisms behind the observed sex differences in thyroid disorders.