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  • Title: Ovarian function immediately after the menarche.
    Author: Borsos A, Lampé LG, Balogh A, Csoknyay J, Ditroi F.
    Journal: Int J Gynaecol Obstet; 1986 Jun; 24(3):239-42. PubMed ID: 2880764.
    Abstract:
    Estrone and pregnanediol-glucuronide values of early morning urine samples collected from young girls in the perimenarche were determined by radioimmunological technique. A total of 58 teenage girls started collecting urine samples after their menarche at various times. Of these, 9 completed collection within 100 days of the onset of the first menstrual period. In 3 cases, insignificant changes in estrone and pregnanediol levels were noted. Normal estrone values were found in 3 cases together with pregnanediol levels suggestive of ovulation. In 2 further cases the possibility of ovulation without follicular release was suggested. The results indicate that ovarian activity is unpredictable immediately following the menarche. Between very low levels of sexual steroid hormone production and those normally observed in adult females, all transitional values could be found.
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