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Revista médica de Chile

versión impresa ISSN 0034-9887

Resumen

LEPEZ, MACARENA et al. Salivary cortisol among subjects with and without Cushing syndrome. Rev. méd. Chile [online]. 2010, vol.138, n.2, pp.168-174. ISSN 0034-9887.  http://dx.doi.org/10.4067/S0034-98872010000200004.

Background: Salivary cortisol measurement is recommended as a screening mea-sure when a Cushing Syndrome is suspected. Theproposed cut-offpointfor aprobable diagnosis is 0.16 ug/dL. Aim: To determine salivary cortisol concentrations during the day inpatients with and without Cushing syndrome and with depression. Material and Methods: Salivary cortisol was measured by competitive enzyme immuno assay (EIA), in samples obtained at 8:00,15:00 and 23:00 h in 78 patients without Cushing syndrome, aged 40 ± 15years (28 males), 30 patients with depression aged 40 ± 12years (nine males) and four jemales with Cushing syndrome aged 42 ± 17 years. Results: Salivary cortisol was higher among patients with Cushing syndrome than the rest of patients. A salivary cortisol over the cut-off value of O.16 ug/dL was found in 42% of subjects without Cushing syndrome and in 33% of patients with depression. Median values among patients without Cushing syndrome, depression and with Cushing syndrome were 0.21 (range < 0.1-1.42), 0.2 (range 0,12-0.9) and 0.58 (range 0.37-1.1) ug/dL, respectively Conclusions: Salivary cortisol measured by EIA method was higher among patients with Cushing syndrome but there was a great overlap with values obtained in subjects without the syndrome.

Palabras clave : Cushing syndrome; Hydrocortisone; Saliva.

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