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Effects of chronic administration of a methionine-enkephalin analogue on the zona glomerulosa of the rat adrenal cortex

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Research in Experimental Medicine

Summary

The effects of D-ala2-met-enkephalinamide (DALA) on the zona glomerulosa of dexamethasone-ACTH-treated rats were investigated by coupled radioimmunologic and morphometric techniques. Short-term DALA administration provoked a significant increase in the aldosterone plasma level along with a notable lipid droplet depletion in zona glomerulosa cells. Long-term DALA treatment induced a striking hypertrophy of zona glomerulosa cells and a further rise in the blood concentration of aldosterone. These findings seem to indicate that DALA is involved not only in the acute enhancement of aldosterone output but also in the stimulation of the growth and steroidogenic capacity of rat adrenal zona glomerulosa.

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Authors and Affiliations

  1. Department of Anatomy, University of Padua, Via Gabelli 65, I-35100, Padua, Italy

    C. Robba, G. Mazzocchi & G. G. Nussdorfer

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  1. C. Robba
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  2. G. Mazzocchi
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  3. G. G. Nussdorfer
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Supported by a grant from CNR Italy (CT 8300227/115·3439)

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Robba, C., Mazzocchi, G. & Nussdorfer, G.G. Effects of chronic administration of a methionine-enkephalin analogue on the zona glomerulosa of the rat adrenal cortex. Res. Exp. Med. 186, 173–178 (1986). https://doi.org/10.1007/BF01852042

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  • DOI: https://doi.org/10.1007/BF01852042

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