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Graves' Disease I: Introduction

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: Pathophysiology

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...

Autoimmune Disorders

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 II: Pathophysiology

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: Introduction

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: Pathophysiology

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...

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Related Experiment Video

Updated: Jul 5, 2026

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

Published on: March 17, 2023

Pregnancy and autoimmune thyroid disease.

D L Ewins¹, A M McGregor

¹Department of Medicine, King's College Hospital Medical School, London, UK.

Trends in Endocrinology and Metabolism: TEM

|July 1, 1990

Summary

Pregnancy alters autoimmune thyroid disease (AITD) and AITD impacts pregnancy. Understanding placental transfer of hormones, antibodies, and drugs is crucial for managing AITD during gestation.

Area of Science:

Endocrinology
Immunology
Maternal-Fetal Medicine

Background:

Pregnancy involves significant immunological and endocrine shifts.
These physiological changes interact with the natural course of autoimmune thyroid disease (AITD).
AITD can pose risks to both the pregnant individual and the fetus/neonate.

Purpose of the Study:

To highlight the bidirectional relationship between pregnancy and AITD.
To emphasize the importance of understanding placental transfer mechanisms.
To underscore the necessity of this knowledge for effective clinical management.

Main Methods:

Review of existing literature on immunological and endocrine changes during pregnancy.
Analysis of the impact of AITD on maternal and fetal outcomes.

More Related Videos

Preparation of Mouse Pituitary Immunogen for the Induction of Experimental Autoimmune Hypophysitis

Preparation of Mouse Pituitary Immunogen for the Induction of Experimental Autoimmune Hypophysitis

Published on: December 17, 2010

Related Experiment Videos

Last Updated: Jul 5, 2026

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

Published on: March 17, 2023

Preparation of Mouse Pituitary Immunogen for the Induction of Experimental Autoimmune Hypophysitis

Preparation of Mouse Pituitary Immunogen for the Induction of Experimental Autoimmune Hypophysitis

Published on: December 17, 2010

Examination of the principles of placental transfer for key substances.

Main Results:

Pregnancy-induced hormonal and immune alterations modify AITD activity.
AITD presents unique challenges for maternal and neonatal health.
Differential placental transfer rates exist for hormones, antibodies, and medications.

Conclusions:

Successful management of AITD in pregnancy necessitates a thorough understanding of placental physiology.
Knowledge of hormone, antibody, and drug transfer across the placenta is critical.
This understanding informs therapeutic strategies to optimize outcomes for mother and child.