alexa Absence of circadian salivary cortisol rhythm in women with anorexia nervosa.
Engineering

Engineering

Advances in Robotics & Automation

Author(s): dos Santos E, dos Santos JE, Ribeiro RP, Rosa E Silva AC, Moreira AC,

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Abstract STUDY OBJECTIVE: To compare the cortisol levels and 24 hour salivary cortisol rhythm in patients with anorexia nervosa (AN) and normal controls. DESIGN: Prospective transversal controlled study. SETTING: Tertiary-referral University Hospital. PARTICIPANTS: Twenty-five patients aged 15 to 35 years, 13 of them with regular ovulatory cycles, and 12 with diagnosis of AN. INTERVENTIONS: Salivary and blood collection for cortisol 24-hour rhythm determination. MAIN OUTCOME: Salivary cortisol was determined at 9 am, 5 pm, and 11 pm. Seric follicle-stimulating hormone, luteinizing hormone (LH), prolactin, estradiol (E2), progesterone, dehydroepiandrosterone-S (DHEA-S), and cortisol were sampled together with the 9 am salivary sample. RESULTS: LH, E2, and DHEA-S levels were reduced in patients with AN. A correlation between salivary and serum cortisol levels was observed in the 9 am sample only in controls (r = 0.67, P = 0.01; AN: r = 0.48, P = 0.12). Cortisol rhythm was present in all control subjects, whereas it was absent in one third of AN patients. The area under the curve for the AN group with preserved rhythm was significantly higher than for the control group (Me = 6811 ng/dl/24h vs 3708 ng/dl/24 h; P = 0.034). CONCLUSION: Patients with AN have higher salivary cortisol levels when compared to normal women and some of them do not present circadian rhythm. This article was published in J Pediatr Adolesc Gynecol and referenced in Advances in Robotics & Automation

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