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Pediatr Res. 2006 Apr;59(4 Pt 1):598-603.

Role of cortisol in menstrual recovery in adolescent girls with anorexia nervosa.

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1
Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA 02114, USA. mmisra@partners.org

Abstract

Neuroendocrine abnormalities in anorexia nervosa (AN) include hypercortisolemia, hypogonadism, and hypoleptinemia, and neuroendocrine predictors of menstrual recovery are unclear. Preliminary data suggest that increases in fat mass may better predict menstrual recovery than leptin. High doses of cortisol decrease luteinizing hormone (LH) pulse frequency, and cortisol predicts regional fat distribution. We hypothesized that an increase in fat mass and decrease in cortisol would predict menstrual recovery in adolescents with AN. Thirty-three AN girls 12-18 y old and 33 controls were studied prospectively for 1 y. Body composition [dual energy x-ray absorptiometry (DXA)], leptin, and urinary cortisol (UFC) were measured at 0, 6, and 12 mo. Serum cortisol was measured overnight (every 30 min) in 18 AN subjects and 17 controls. AN subjects had higher UFC/cr x m2 and cortisol area under curve (AUC), and lower leptin levels than controls. Leptin increased significantly with recovery. When menses-recovered AN subjects were compared with AN subjects not recovering menses and controls, menses-recovered AN subjects had higher baseline cortisol levels and greater increases in leptin than controls and greater increases in fat mass than AN subjects not recovering menses and controls (adjusted for multiple comparisons). In a logistic regression model, increasing fat mass, but not leptin, predicted menstrual recovery. Baseline cortisol level strongly predicted increases in the percentage of body fat. We demonstrate that 1) high baseline cortisol level predicts increases in body fat and 2) increases in body fat predict menses recovery in AN.

[Indexed for MEDLINE]

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