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Related Concept Videos

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...
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...
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...
Autoimmune Disorders01:29

Autoimmune Disorders

Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
Concept and Mechanism of Autoimmune Diseases
The immune system...
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...
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...

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Related Experiment Video

Updated: May 22, 2026

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
04:39

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

Published on: March 17, 2023

Association between thyroid autoimmunity and fibromyalgia.

J H Suk1, J H Lee, J M Kim

  • 1Department of Internal Medicine, Division of Endocrinology and Metabolism, Maryknoll Medical Center, Busan, Republic of Korea.

Experimental and Clinical Endocrinology & Diabetes : Official Journal, German Society of Endocrinology [And] German Diabetes Association
|May 3, 2012
PubMed
Summary
This summary is machine-generated.

Fibromyalgia patients have a higher prevalence of thyroid autoimmunity (TPO Ab) than healthy individuals. However, this thyroid autoimmunity does not appear to worsen fibromyalgia symptoms.

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Area of Science:

  • Endocrinology
  • Rheumatology
  • Immunology

Background:

  • Autoimmune thyroiditis is frequently observed in fibromyalgia (FM) patients.
  • The specific role of thyroperoxidase antibodies (TPO Ab) in FM manifestation remains unclear.

Purpose of the Study:

  • To determine the prevalence of positive TPO Ab in euthyroid FM patients.
  • To assess the association between TPO Ab positivity and clinical symptoms in euthyroid FM patients.

Main Methods:

  • Evaluated thyroid function (free T4, TSH, TPO Ab) and clinical parameters (FIQ, VAS, tender points) in 149 euthyroid FM patients and 68 healthy controls.
  • Compared TPO Ab prevalence between groups and analyzed clinical/laboratory parameters based on TPO Ab status.

Main Results:

  • Euthyroid FM patients had a significantly higher prevalence of positive TPO Ab (19%) compared to healthy controls (7%; P=0.04).
  • TPO Ab positivity was not associated with differences in clinical or laboratory parameters within the FM patient group.

Conclusions:

  • Euthyroid FM patients exhibit increased TPO Ab positivity, suggesting a potential link between thyroid autoimmunity and FM development.
  • TPO Ab positivity in euthyroid FM patients is not correlated with disease severity or specific clinical manifestations.