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Effect of estradiol or calcium treatment on mammotrophs of female middle-aged rats

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Author(s): Milošević Verica | Starčević Vesna | Šošić-Jurjević Branka | Filipović B. | Trifunović Svetlana | Ristić Nataša | Nestorović Nataša | Manojlović Milica | Sekulić Milka

Journal: Acta Veterinaria
ISSN 0567-8315

Volume: 57;
Issue: 5-6;
Start page: 393;
Date: 2007;
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Keywords: PRL | mammotrophs | estradiol | calcium | middle-aged | female rats

ABSTRACT
The effects of estradiol dipropionate (EDP) or calcium glucoheptonate (Ca) on the morphology and stereology of the PRL cells in 14-month-oldWistar female rats were studied. The animals were treated daily with EDP in the dose of 0.625 mg/kg b.w. or calcium glucoheptonate (Ca; 11.4 mg/kg b.w.) for two weeks. The controls were injected with vehicle alone by the same schedule. Mammotrophs (PRL cells) were immunocytochemically localized by the PAP method. Blood PRL concentration was determined by Delfia procedure. In animals treated with EDP the volume of both, PRL cells and their nuclei, as well as the volume densities were significantly (p0.05) decreased compared to control rats. Serum concentration of PRL was significantly increased (p0.05) changed by 2% compared to controls. Based on these results, it can be concluded that EDP expresses a strong stimulatory effect on the morphology and function of pituitary PRL cells.
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