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  • Title: Long-term trophic effect of sodium restriction on the rat adrenal zona glomerulosa. I. Its partial independence of the renin-angiotensin system.
    Author: Robba C, Rebuffat P, Mazzocchi G, Nussdorfer GG.
    Journal: Exp Clin Endocrinol; 1988 Mar; 91(1):43-50. PubMed ID: 3286273.
    Abstract:
    The mechanism of the trophic effect of chronic sodium restriction on the zona glomerulosa of the rat adrenals was investigated by combined morphometric and biochemical techniques. In the normal rats, prolonged sodium deprivation caused a significant hypertrophy of the zona glomerulosa and its parenchymal cells, coupled with a conspicuous rise in the plasma concentration of aldosterone. Analogous results were observed in animals simultaneously administered captopril and maintenance doses of angiotensin II. However, in this last case, the changes were significantly lower than those observed in the normal rats. These findings are compatible with the view that the activation of the renin-angiotensin system is not the sole mechanism involved in the stimulation of the growth and steroidogenic capacity of rat adrenal zona glomerulosa induced by chronic sodium restriction.
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