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DOI: 10.1055/a-1101-9090
The Influence of Thyroid Hormones on Brain Structure and Function in Humans
Funding: This study was supported by the DFG MU1311/16–2 awarded to TFM, AS and GB. The funding source did not influence any stage of this project.Abstract
The pleiotropic function of thyroid hormones (TH) is mediated by an organ specific expression of thyroid hormone transporters, deiodinases and TH receptors. In a series of studies we used the model of an experimentally induced hyper- or hypothyroidism in human volunteers to delineate TH action on the brain. A battery of neuropsychological testing paradigms was employed and complemented by structural and functional multimodal neuroimaging. Experimentally induced mild thyrotoxicosis for 6 weeks was associated with changes in brain structure (determined with voxel-based morphometry), resting state functional connectivity, and task-related functional activation in a working memory paradigm. Partial withdrawal of TH replacement in patients without thyroid (subclinical hypothyroidism) likewise lead to changes on multiple functional and structural brain measures. Importantly, the series of studies reviewed here identified the cerebellum as one crucial site of action.
Key words
thyroid hormones - voxel based morphometry - functional MRI - hyperthyroidism - hypothyroidismPublikationsverlauf
Eingereicht: 29. Juni 2019
Eingereicht: 03. Januar 2020
Angenommen: 20. Januar 2020
Artikel online veröffentlicht:
10. Februar 2020
© Georg Thieme Verlag KG
Stuttgart · New York
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