Title |
Thyroid Hormone Signaling and Adult Neurogenesis in Mammals
|
---|---|
Published in |
Frontiers in endocrinology, April 2014
|
DOI | 10.3389/fendo.2014.00062 |
Pubmed ID | |
Authors |
Sylvie Remaud, Jean-David Gothié, Ghislaine Morvan-Dubois, Barbara A. Demeneix |
Abstract |
The vital roles of thyroid hormone in multiple aspects of perinatal brain development have been known for over a century. In the last decades, the molecular mechanisms underlying effects of thyroid hormone on proliferation, differentiation, migration, synaptogenesis, and myelination in the developing nervous system have been gradually dissected. However, recent data reveal that thyroid signaling influences neuronal development throughout life, from early embryogenesis to the neurogenesis in the adult brain. This review deals with the latter phase and analyses current knowledge on the role of T3, the active form of thyroid hormone, and its receptors in regulating neural stem cell function in the hippocampus and the subventricular zone, the two principal sites harboring neurogenesis in the adult mammalian brain. In particular, we discuss the critical roles of T3 and TRα1 in commitment to a neuronal phenotype, a process that entails the repression of a number of genes notably that encoding the pluripotency factor, Sox2. Furthermore, the question of the relevance of thyroid hormone control of adult neurogenesis is considered in the context of brain aging, cognitive decline, and neurodegenerative disease. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 1 | 33% |
France | 1 | 33% |
Unknown | 1 | 33% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 2 | 67% |
Scientists | 1 | 33% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
France | 2 | 2% |
Portugal | 1 | <1% |
Germany | 1 | <1% |
United Kingdom | 1 | <1% |
Canada | 1 | <1% |
Japan | 1 | <1% |
Unknown | 113 | 94% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 28 | 23% |
Researcher | 19 | 16% |
Student > Bachelor | 16 | 13% |
Student > Master | 15 | 13% |
Student > Doctoral Student | 6 | 5% |
Other | 19 | 16% |
Unknown | 17 | 14% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 32 | 27% |
Neuroscience | 28 | 23% |
Biochemistry, Genetics and Molecular Biology | 13 | 11% |
Medicine and Dentistry | 12 | 10% |
Pharmacology, Toxicology and Pharmaceutical Science | 4 | 3% |
Other | 10 | 8% |
Unknown | 21 | 18% |