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  • Title: Effects of ACTH and dexamethasone on the zona glomerulosa of the rat adrenal cortex: an ultrastructural stereologic study.
    Author: Nussdorfer GG, Mazzocchi G, Robba C, Belloni AS, Rebuffat P.
    Journal: Acta Endocrinol (Copenh); 1977 Jul; 85(3):608-14. PubMed ID: 194449.
    Abstract:
    The effects of a chronic treatment with ACTH and dexamethasone on the zona glomerulosa of intact rat adrenals were investigated by morphometric methods and electron microscopy. It was found that ACTH increases the volume of the zona glomerulosa, of the cells, nuclei mitochondrial compartment as well as the surface of SER and mitochondrial compartment as well as the surface of SER and mitochondrial cristae. Also noticeable was the hypertrophy of the Golgi apparatus. Opposite effects were obtained after dexamethasone treatment. These findings are interpreted as indicating that ACTH is involved in the maintenance and stimulation of the growth and steroidogenic capacity of the adrenal zona glomerulosa.
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