Related Experiment Video
Updated: Jun 2, 2026
04:05
A Versatile, Behavioral Method to Investigate Thyroid Hormone Effects on Cerebellar Function
Published on: October 6, 2023
[Thyroid hormone and cerebellum development: direct and indirect effects?]
F Chatonnet1, T Fauquier, F Picou
1Pôle neurodéveloppement, laboratoire de biologie moléculaire et cellulaire, institut de génomique fonctionnelle de Lyon, école normale supérieure de Lyon, UMR CNRS 5242, 46, allée d'Italie, 69364 Lyon cedex 07, France.
Annales D'Endocrinologie
|April 23, 2011
Summary
Thyroid hormone (T3) is crucial for brain development, particularly in the cerebellum. New mouse models and gene expression studies are advancing our understanding of these neurodevelopmental mechanisms.
Area of Science:
- Neuroscience
- Developmental Biology
- Endocrinology
Background:
- Thyroid hormone (T3) significantly impacts neurodevelopment.
- The rodent cerebellum serves as a model for studying T3's effects.
- Neuronal and glial cells express thyroid hormone receptors (TRα1 and TRβ1).
Purpose of the Study:
- To review new mouse genetics models for studying neurodevelopment.
- To highlight recent advances in understanding thyroid hormone's role in the brain.
- To explore indirect mechanisms of T3 action via neurotrophins.
Main Methods:
- Utilizing mouse genetics for targeted studies.
- Employing genome-wide gene expression analysis.
- Observing postnatal cerebellar development as a model system.
Main Results:
- Mouse genetics and gene expression analyses offer promising insights.
- T3 influences both direct cellular actions and indirect pathways through neurotrophins.
- TRα1 and TRβ1 receptors mediate T3's effects on various cell types.
Conclusions:
- New mouse models are instrumental in dissecting neurodevelopmental processes.
- Understanding T3's role is key to comprehending brain development.
- Further research using these advanced models will elucidate fundamental neurodevelopmental mechanisms.
Related Concept Videos
01:18Functions of Thyroid Hormones
The thyroid hormone (TH) plays a pivotal role in the intricate orchestration of physiological processes, exerting profound effects on development, metabolism, and homeostasis throughout different life stages.
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...
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...
01:20Synthesis and Regulation of Thyroid Hormones
Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
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 iodine is then...
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 iodine is then...
01:27Hyperthyroidism 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...
01:23Hypothyroidism 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...
01:23The Thyroid Gland
The thyroid gland is a small, butterfly-shaped gland located in the neck and covers the anterior surface of the trachea. The gland has two lateral lobes connected by a thin tissue mass called the isthmus. Internally, each lobe comprises many small spherical structures known as thyroid follicles, surrounded by a network of blood vessels.
The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...
The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...
01:27Goiter
Goiter refers to an abnormal enlargement of the thyroid gland that may appear as a diffuse goiter (uniform enlargement) or nodular (single or multiple nodules). Functionally, it is classified as nontoxic (normal/low hormone levels) or toxic (excess hormone production).PathophysiologyDiffuse thyroid enlargement typically results from prolonged stimulation by thyroid-stimulating hormone (TSH) or TSH-like agents, commonly seen in hypothyroidism or iodine deficiency. In contrast, in hyperthyroid...