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Related Concept Videos

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...
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...
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...
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...
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: Jun 5, 2026

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
04:39

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

Published on: March 17, 2023

Autoimmune thyroid diseases in children.

Marco Cappa1, Carla Bizzarri, Francesca Crea

  • 1Unit of Endocrinology and Diabetes, Bambino Gesù Children's Hospital, University of Rome "Tor Vergata", Piazza S. Onofrio 4, 00165 Rome, Italy.

Journal of Thyroid Research
|January 7, 2011
PubMed
Summary

Autoimmune thyroid diseases (ATDs), such as Graves' disease and autoimmune thyroiditis, involve immune cells attacking the thyroid. Early recognition of thyroid dysfunction is crucial due to potential genetic and environmental factors.

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Area of Science:

  • Endocrinology
  • Immunology
  • Thyroidology

Background:

  • Autoimmune thyroid diseases (ATDs) are common endocrine disorders.
  • Key ATDs include Graves' disease (GD) and autoimmune thyroiditis (AT).
  • Both conditions involve immune system attack on thyroid antigens.

Purpose of the Study:

  • To summarize the characteristics of major autoimmune thyroid diseases.
  • To highlight the role of immune cells and autoantibodies in thyroid dysfunction.
  • To emphasize the importance of early diagnosis of thyroid dysfunction.

Main Methods:

  • Review of the pathophysiology of autoimmune thyroid diseases.
  • Description of immune cell infiltration and autoantibody production.
  • Discussion of clinical manifestations including hyperthyroidism and hypothyroidism.

Main Results:

  • Graves' disease and autoimmune thyroiditis are characterized by T and B cell infiltration of the thyroid.
  • Thyroid autoantibodies are produced in both conditions.
  • Abnormal thyroid function, including hyperthyroidism (GD) and hypothyroidism (AT), is a hallmark.

Conclusions:

  • The etiology of ATDs is multifactorial, involving genetic susceptibility and environmental triggers leading to loss of tolerance.
  • Early detection of thyroid dysfunction is essential for effective management.
  • Maintaining a high index of suspicion aids in timely diagnosis.