A comparison of changes in plasma thyrotropin beta- and alpha-subunits, and mouse thyrotropic tumor thyrotropin beta- and alpha-subunit mRNA concentrations after in vivo dexamethasone or T3 administration.


Dexamethasone, like T3, inhibits the production of TSH. T3 inhibits TSH synthesis by reducing transcription of the genes encoding TSH-beta and alpha-subunits. Little information is available concerning the effects of dexamethasone on the individual subunits, or the combined effects of dexamethasone with T3. In a preliminary study, hypothyroid mice bearing… (More)


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