Pubarche without thelarche has been taken as clinical evidence that adrenarche is independent of gonadarche in females. This study examines whether the course of adrenarche [rise of serum dehydroepiandrosterone sulfate (DHEAS)] and pubarche (Tanner stage PH2) is independent from ovarian function. Serum DHEAS levels (n = 867) were longitudinally measured in 111 girls with Turner syndrome between 1990 and 2002. Of these, 22 had spontaneous puberty onset (Tanner stage B2), and 45 had primary ovarian failure (POF). Serum DHEAS levels were assayed by chemiluminescence and compared with those of healthy girls (n = 322; age range, 3-17 yr in both groups). Between the ages of 7 and 17 yr, girls with Turner syndrome had significantly higher age-related DHEAS levels than normal girls (P

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