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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...
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...
Type I Diabetes I: Introduction01:12

Type I Diabetes I: Introduction

Type 1 diabetes mellitus is a chronic metabolic disorder characterized by an absolute deficiency of insulin resulting from the autoimmune destruction of pancreatic β-cells. Although it can occur at any age, it is most commonly diagnosed in childhood, adolescence, or early adulthood. The loss of insulin production impairs cellular glucose uptake, resulting in persistent hyperglycemia and necessitating lifelong insulin therapy.Autoimmune Destruction of β-CellsThe hallmark of type 1 diabetes is an...
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
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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...
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...

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Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
04:39

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

Published on: March 17, 2023

Autoimmune thyroiditis in childhood.

Rosalind S Brown1

  • 1Division of Endocrinology, Children's Hospital Boston and Department of Pediatrics, Harvard Medical School, Boston, USA. Rosalind.Brown@childrens.harvard.edu

Journal of Clinical Research in Pediatric Endocrinology
|November 17, 2012
PubMed
Summary
This summary is machine-generated.

Autoimmune thyroiditis (AIT) in children involves immune system defects and genetic factors, leading to thyroid damage. Diagnosis often relies on detecting thyroid peroxidase and thyroglobulin antibodies.

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Area of Science:

  • Pediatric Endocrinology
  • Immunology
  • Genetics

Background:

  • Autoimmune thyroiditis (AIT) is the most common thyroid disorder in children.
  • It stems from complex immunoregulation defects, leading to thyroid follicular cell injury and apoptosis.
  • Genetic predisposition accounts for ~70% of disease risk, with environmental factors triggering onset in susceptible individuals.

Purpose of the Study:

  • To review the pathogenesis, genetic factors, and diagnostic markers of autoimmune thyroiditis in pediatric populations.
  • To clarify the role of autoantibodies in AIT and their diagnostic significance.
  • To discuss the clinical presentation and potential co-occurrence with other autoimmune diseases.

Main Methods:

  • Literature review of autoimmune thyroiditis in pediatric age range.
  • Analysis of genetic and environmental factors contributing to disease development.
  • Evaluation of autoantibody roles and diagnostic utility.

Main Results:

  • AIT pathogenesis involves lymphocyte infiltration and T-cell/cytokine-mediated injury.
  • Multiple gene polymorphisms likely contribute to susceptibility, interacting with environmental triggers.
  • Thyroid peroxidase (TPO) and thyroglobulin (Tg) antibodies are key diagnostic markers, while TSH receptor antibodies impact thyroid function.

Conclusions:

  • AIT is a multifactorial disease in children, influenced by genetics and environment.
  • Diagnostic antibodies, particularly TPO Abs and Tg Abs, are crucial for identifying autoimmune thyroid destruction.
  • Understanding AIT is vital for pediatric endocrine care, with potential implications for neonatal hypothyroidism screening.