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Influence of L-triiodothyronine on rat somatotroph cells
Medicina (B.Aires) ; 56(3): 273-6, 1996. ilus, graf
Artículo en Inglés | LILACS | ID: lil-181484
ABSTRACT
The L-Triiodothyronine (L-T3) has a direct influence on the population of somatotrophs in rat pituitary gland. This effect is dose-dependent and induces both proliferation of somatotrophs and striking changes in the synthesis and secretion of grwth hormone (GH). Daily injections of 5 mug L-T3 for 7 days increased significantly the synthesis and storage of GH in pituitary gland, but the GH release was partially blocked. By contrast, injections of 10 mug L-T3 promote rapid synthesis and secretion of GH with removal of the cytoplasmic stores of the hormone and a consequent rise of serum levels. A close correlation was found between levels of stimulation and proliferation or retrogression of lactotroph cell population.
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Índice: LILACS (Américas) Asunto principal: Hipófisis / Triyodotironina / Hormona del Crecimiento Límite: Animales Idioma: Inglés Revista: Medicina (B.Aires) Asunto de la revista: Medicina Año: 1996 Tipo del documento: Artículo

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Índice: LILACS (Américas) Asunto principal: Hipófisis / Triyodotironina / Hormona del Crecimiento Límite: Animales Idioma: Inglés Revista: Medicina (B.Aires) Asunto de la revista: Medicina Año: 1996 Tipo del documento: Artículo