John C. Dvorak

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To determine if the adrenergic nervous system, and specifically tyrosine hydroxylase, plays a role in the extrathyroidal conversion of T4 to T3, normal male volunteers were treated with T4 and subsequently with T4 and alpha-methyl-p-tyrosine (alpha-MPT), an inhibitor of tyrosine hydroxylase, for 2 weeks. The mean serum T4 and T3 concentrations increased(More)
Pyroglu-N3immethyl-histidyl-prolineamide (MeTRH) is a more potent stimulator of thyrotropin and prolactin secretion than thyrotropin-releasing hormone (TRH). In this study, the immunoreactivity of MeTRH and its susceptibility to destruction by serum were investigated. When tested in radioimmunoassays employing four different anti-TRH sera. MeTRH had 25 to(More)
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