The mineralocorticoid receptor agonist, fludrocortisone, inhibits pituitary-adrenal activity in humans after pre-treatment with metyrapone.
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The mineralocorticoid receptor agonist, fludrocortisone, inhibits pituitary-adrenal activity in humans after pre-treatment with metyrapone. / Otte, Christian; Jahn, Holger; Yassouridis, Alexander; Arlt, Josef; Stober, Nina; Maass, Philip; Wiedemann, Klaus; Kellner, Michael.
In: LIFE SCI, Vol. 73, No. 14, 14, 2003, p. 1835-1845.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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T1 - The mineralocorticoid receptor agonist, fludrocortisone, inhibits pituitary-adrenal activity in humans after pre-treatment with metyrapone.
AU - Otte, Christian
AU - Jahn, Holger
AU - Yassouridis, Alexander
AU - Arlt, Josef
AU - Stober, Nina
AU - Maass, Philip
AU - Wiedemann, Klaus
AU - Kellner, Michael
PY - 2003
Y1 - 2003
N2 - Whereas animal studies have shown a clear inhibitory effect of hippocampal mineralocorticoid receptors (MR) on hypothalamic-pituitary-adrenal (HPA) axis activity, investigations in humans revealed equivocal results. To further clarify the influence of MR in HPA activity we studied 10 healthy men during the circadian nadir of HPA activity (14:00 to 21:00) after pre-treatment with 3 g metyrapone to minimize the impact of basal endogenous cortisol secretion. On three separate occasions, in a placebo-controlled design, subjects received in a randomized order either 0.5 mg fludrocortisone p.o. or 0.2 mg aldosterone i.v. or placebo. Fludrocortisone exerted a significant inhibition of ACTH, cortisol and 11-desoxycortisol (p <0.05), whereas no such effect was observed after aldosterone or placebo. These preliminary data suggest that MR are involved in the inhibition of the HPA axis during the circadian nadir of glucocorticoid concentrations in humans.
AB - Whereas animal studies have shown a clear inhibitory effect of hippocampal mineralocorticoid receptors (MR) on hypothalamic-pituitary-adrenal (HPA) axis activity, investigations in humans revealed equivocal results. To further clarify the influence of MR in HPA activity we studied 10 healthy men during the circadian nadir of HPA activity (14:00 to 21:00) after pre-treatment with 3 g metyrapone to minimize the impact of basal endogenous cortisol secretion. On three separate occasions, in a placebo-controlled design, subjects received in a randomized order either 0.5 mg fludrocortisone p.o. or 0.2 mg aldosterone i.v. or placebo. Fludrocortisone exerted a significant inhibition of ACTH, cortisol and 11-desoxycortisol (p <0.05), whereas no such effect was observed after aldosterone or placebo. These preliminary data suggest that MR are involved in the inhibition of the HPA axis during the circadian nadir of glucocorticoid concentrations in humans.
M3 - SCORING: Zeitschriftenaufsatz
VL - 73
SP - 1835
EP - 1845
JO - LIFE SCI
JF - LIFE SCI
SN - 0024-3205
IS - 14
M1 - 14
ER -