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  • Title: Fertility preservation in girls with turner syndrome: prognostic signs of the presence of ovarian follicles.
    Author: Borgström B, Hreinsson J, Rasmussen C, Sheikhi M, Fried G, Keros V, Fridström M, Hovatta O.
    Journal: J Clin Endocrinol Metab; 2009 Jan; 94(1):74-80. PubMed ID: 18957497.
    Abstract:
    CONTEXT: Many girls with Turner syndrome have follicles in their ovaries at adolescence. OBJECTIVE: Our objective was to study which girls might benefit from ovarian tissue freezing for fertility preservation. DESIGN: Clinical and laboratory parameters and ovarian follicle counts were analyzed among girls referred by 25 pediatric endocrinologists. SUBJECTS AND SETTING: Fifty-seven girls with Turner syndrome, aged 8-19.8 yr, were studied at a university hospital. INTERVENTIONS: Ovarian tissue was biopsied laparoscopically, studied for the presence of follicles, and cryopreserved. Blood samples were drawn for hormone measurements. MAIN OUTCOME MEASURES: Presence of follicles in the biopsied tissue related to age, signs of spontaneous puberty, karyotype, and serum concentrations of gonadotropins and anti-Müllerian hormone were assessed. RESULTS: Ovarian biopsy was feasible in 47 of the 57 girls. In 15 of the 57 girls (26%), there were follicles in the tissue piece analyzed histologically. Six of seven girls (86%) with mosaicism, six of 22 (27%) with structural chromosomal abnormalities, and three of 28 with karyotype 45X (10.7%) had follicles. Eight of the 13 girls (62%) with spontaneous menarche had follicles, and 11 of the 19 girls (58%) who had signs of spontaneous puberty had follicles. The age group 12-16 yr had the highest proportion of girls with follicles. Normal FSH and anti-Müllerian hormone concentrations for age and pubertal stage were more frequent in girls with follicles. CONCLUSIONS: Signs of spontaneous puberty, mosaicism, and normal hormone concentrations were positive and statistically significant but not exclusive prognostic factors as regards finding follicles.
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