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  • Title: Hypothalamo-pituitary-adrenal axis in uraemia: evidence for primary adrenal dysfunction?
    Author: Grant AC, Rodger RS, Mitchell R, Gibson S, White A, Robertson WR.
    Journal: Nephrol Dial Transplant; 1993; 8(4):307-10. PubMed ID: 8390003.
    Abstract:
    To study hypothalamo-pituitary-adrenal axis disturbances in chronic renal failure, we administered corticotrophin-releasing hormone to patients undergoing haemodialysis and CAPD and to normal controls. Cortisol, ACTH, and ACTH precursors were measured before and after corticotrophin-releasing hormone using sensitive and specific two-site assays. Baseline ACTH and cortisol were similar in all groups. Peak values occurred at 30 min (ACTH) and between 30 and 60 min (cortisol). The cortisol (but not the ACTH) responses were significantly reduced in patients with renal failure (P < 0.05). ACTH precursors did not change from baseline following corticotrophin-releasing hormone but were significantly elevated in patients with renal failure compared to controls (P < 0.01). The reduced cortisol response to corticotrophin-releasing hormone may reflect a primary defect of adrenal function in renal failure.
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