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  • Title: Effect of short dexamethasone suppression on plasma steroids in prepubertal and pubertal girls.
    Author: Pintor C, Facchinetti F, Puggioni R, Faedda A, Massafra C, Corda R, Genazzani AR.
    Journal: J Endocrinol Invest; 1980; 3(1):25-8. PubMed ID: 6246161.
    Abstract:
    In 40 girls aged from 2 to 14 years, subdivided into groups according to age and pubertal development, and in 6 adult female volunteers, plasma cortisol (F), pregnenolone (delta 5), dehydroepiandrosterone (DHA) progesterone (P), 17-hydroxyprogesterone (17P), androstenedione (A), testosterone (T) and estradiol (E2) were measured before and after short dexamethasone (DXM) suppression. The results confirmed the capacity of DXM to inhibit plasma steroids in all age groups, except T in 2-9 year old and P1 Tanner's stage girls. The percentage suppression of each given steroid was constant over the age groups from 6-9 years to P4-5 Tanner's stage, while lower suppression was found in 17P, P and DHA in 2-5 year old girls and in 17P, DHA and E2 in adult women. These results emphasize the fundamental role of ACTH as the overall stimulating factor of adrenal steroidogenesis but do not negate the possibility of another factor responsible for the development of the adrenal androgen secreting cells throughout prepuberty and puberty.
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