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  • Title: The presence of gonadotropic and thyrotropic cells in the pituitary pars tuberalis of the monkey (Macaca mulatta).
    Author: Baker BL, Karsch FJ, Hoffman DL, Beckman WC.
    Journal: Biol Reprod; 1977 Sep; 17(2):232-40. PubMed ID: 407948.
    Abstract:
    Immunocytochemistry was utilized to determine if pars tuberalis cells in the pituitary of the monkey (Macaca mulatta) have the potential to elaborate gonadotropic and thyrotropic hormones normally secreted by the pars distalis. A total of 7 males and females were studied. The hormones were localized by the peroxidase-antiperoxidase method of Sternberger, and utilized with antisera to the following human hormones: somatotropin, mammotropin, beta(1-24)-corticotropin, chorionic gonadotropin, and the beta-subunits of follicle stimulating hormone and thyrotropin. Many of the parenchymal cells in the pars tuberalis of the median eminence were composed of gonadotropic cells, probably containing luteinizing hormone and follicle stimulating hormone, and thyrotropic cells. Corticotropic and somatotropic cells were seen only rarely, and mammotropic cells were undetectable. The results indicate that the pars tuberalis is able to secrete luteinizing hormone, follicle stimulating hormone, and thyrotropin.
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