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  • Title: Glucocorticoids and adrenal androgens in children with end stage renal disease.
    Author: Ferraris JR, Ramirez JA, Goldberg V, Rivarola MA.
    Journal: Acta Endocrinol (Copenh); 1991 Mar; 124(3):245-50. PubMed ID: 1849329.
    Abstract:
    UNLABELLED: We studied the effects of chronic renal failure on the pituitary-cortisol axis and adrenal androgen function in 26 patients (16 male and 10 female), aged 6.5 to 22.5 years (mean 14.5). Ten patients were prepubertal, 8 pubertal, and 8 post-pubertal. All of them were on chronic hemodialysis. Pubic hair development was delayed in 56% of the patients. Serum cortisol was increased in 15 out of the 26 patients. Serum delta 4-androstenedione was high in 11 out of 15 patients in Tanner's stage I or II and in 1 out of 11 patients in Tanner's stage III, IV or V (p less than 0.01). Serum cortisol was elevated in 10 out of 12 patients with high serum delta 4-androstenedione and in only 5 out of 14 with normal delta 4-androstenedione (p less than 0.02). Serum dehydroepiandrosterone sulphate was normal in 22 patients and elevated in 4 males. There was a significant inverse correlation between bone age and serum cortisol (r: -0.59; p less than 0.005) and a significant positive correlation between bone age and serum dehydroepiandrosterone sulphate (r: 0.45 p less than 0.01). Serum ACTH was normal. A reduction by 50% in cortisol and 78% in dehydroepiandrosterone sulphate was found after dexamethasone suppression, but delta 4-androstenedione did not suppress after dexamethasone. After ACTH stimulation test cortisol increased by 50% and delta 4-androstenedione by 80%. CONCLUSIONS: The increased levels of cortisol and delta 4-androstenedione with partial resistance to dexamethasone suggest that these patients have a hypothalamic-pituitary dysfunction similar to that found in Cushing's disease or in chronic stress. The difference in the responses of delta 4-androstenedione and dehydroepiandrosterone sulphate observed is consistent with the existence of different mechanisms of control for these two steroids.
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