Related Experiment Video
Updated: Oct 1, 2025

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
Published on: March 17, 2023
Thyroid autoimmunity and pregnancy in euthyroid women
Aglaia Kyrilli1, David Unuane2, Kris G Poppe3
1Department of Endocrinology, Hôpital Erasme (Université Libre de Bruxelles, ULB), Route de Lennik, 808, 1070, Brussels, Belgium.
Women with thyroid autoimmunity (TAI) face increased risks for pregnancy complications and subfertility. While TAI impacts maternal and fetal health, screening all pregnant women is not currently recommended due to unanswered questions.
Area of Science:
- Reproductive Endocrinology
- Immunology
- Obstetrics
Background:
- Thyroid autoimmunity (TAI), marked by elevated thyroid peroxidase antibodies (TPOAb), poses risks to pregnant women.
- TAI is linked to subfertility, higher TSH levels before pregnancy, and potential hypothyroidism during gestation.
Purpose of the Study:
- To review the significance of TAI during natal and perinatal periods.
- To explore the associations between TAI and pregnancy-related complications, including postpartum thyroiditis (PPT).
Main Methods:
- Literature review focusing on TAI and pregnancy outcomes.
- Analysis of existing studies on maternal and fetal complications in women with TAI.
Main Results:
- TAI is associated with increased maternal and fetal complications, even in euthyroid women, though causality is unclear.
- Nearly half of women with pre-pregnancy TAI develop postpartum thyroiditis (PPT); its link to postpartum depression is uncertain.
Conclusions:
- Further research is needed to elucidate the mechanisms linking TAI to pregnancy morbidities.
- Current evidence does not support routine screening for TAI in all pregnant women.
Related Concept Videos
Synthesis and Regulation of Thyroid Hormones
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...
Autoimmune Disorders
Concept and Mechanism of Autoimmune Diseases
The immune...
Functions of Thyroid Hormones
TH is indispensable for the normal development and maturation of the skeletal, muscular, and nervous systems during fetal and childhood growth. It facilitates bone mineral turnover and regulates protein synthesis in developing tissues, contributing significantly to overall growth and...
The Thyroid Gland
The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...
Development of Immunocompetence
The initial cells that migrate from the fetal thymus settle within the skin and epithelial tissues lining the mouth, digestive tract, and in females, the uterus and vagina. These cells, including skin-based dendritic cells, serve as antigen-presenting cells, playing a key role in T cell activation.
Subsequent T...
Diabetes Mellitus: Type 2 and Gestational

