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Innervation of thyrotropin-releasing hormone-containing neurons in the bullfrog pars intermedia
1Department of Anatomy, Showa University School of Medicine, Tokyo, Japan.
Neuroscience Letters
|October 16, 1987
Abstract:
We studied immunocytochemical localization of thyrotropin-releasing (TRH) in the bullfrog pats intermedia. Many TRH-like immunoreactive terminals containing immunoreactive granular vesicles 80-150 nm in diameter (116 nm mean diameter) were found in the pars intermedia. Some TRH-like immunoreactive terminals were in synaptic contact with the intermedia cells. These findings support the hypothesis that TRH directly activates the intermedia cells via synapses to secrete alpha-melanocyte-stimulating hormone.