Related Experiment Video
Updated: May 29, 2026

04:39
Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
Published on: March 17, 2023
[Autoimmune thyroid disease and pregnancy--challenge or routine]
Summary
Thyroid Stimulating Hormone (TSH) levels are crucial during pregnancy. Elevated TSH levels increase risks for miscarriage and preterm birth, especially with thyroid antibodies present.
Area of Science:
- Endocrinology
- Reproductive Medicine
- Obstetrics
Context:
- Thyroid Stimulating Hormone (TSH) regulates thyroid hormone release.
- Thyroid dysfunction (hyperthyroidism, hypothyroidism) impacts overall health.
- Normal thyroid function is vital for successful pregnancy outcomes.
Purpose:
- To review normal TSH ranges during pregnancy.
- To highlight risks associated with elevated TSH levels in pregnant individuals.
- To discuss the impact of thyroid antibodies on pregnancy.
Summary:
- General population normal TSH range is 0.45-4.5 mIU/l.
- Pregnancy-specific studies suggest a lower upper TSH limit of 2.5 mIU/l.
- Higher TSH levels correlate with increased miscarriage and preterm delivery risks.
Impact:
- Identifies optimal TSH thresholds for pregnant women.
- Emphasizes the importance of monitoring thyroid function during gestation.
- Highlights the compounded risk of miscarriage in antibody-positive women.
Related Concept Videos
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 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 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: 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: 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...
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...
Concept and Mechanism of Autoimmune Diseases
The immune system...
