Journal of Clinical Endocrinology & Metabolism , doi:10.1210/jc.2005-0142 Copyright © 2005 by The Endocrine Society Ovarian Function during Puberty in Girls with Type 1 Diabetes Mellitus: Response to LeuprolideEthel Codner, Dennis Mook-Kanamori, Rodrigo A. Bazaes, Nancy Unanue, Hugo Sovino, Francisca Ugarte, Alejandra Avila, German Iñiguez and Fernando CassorlaInstitute of Maternal and Child Research (E.C., D.M.-K., R.A.B., N.U., H.S., G.I., F.C.), School of Medicine, University of Chile, 836-0160 Santiago, Chile; Hospital Exequiel G. Cortés (F.U.), 891-0108 Santiago, Chile; and Hospital San Borja Arriarán (A.A.), 836-0160 Santiago, Chile Address all correspondence and requests for reprints to: Ethel Codner, M.D., Institute of Maternal and Child Research, School of Medicine, University of Chile, Casilla 226-3, Santiago, Chile. E-mail: ecodner{at}med.uchile.cl. Context: An increased prevalence of polycystic ovary syndrome (PCOS) has been reported in adult women with type 1 diabetes mellitus (DM1). We investigated whether these hormonal abnormalities begin during puberty by evaluating the ovarian steroidogenic response to leuprolide acetate. Methods: We studied 56 adolescent girls with DM1 (aged 12.3 ± 0.2 yr) and 64 healthy girls (C) (aged 11.9 ± 0.2 yr) up to 2 yr post menarche, matched by age, body mass index, and pubertal development. We evaluated anthropometrical data and Ferriman-Gallway score and performed a leuprolide test (500 µg sc) to study ovarian function. Ovarian volume was determined by transabdominal ultrasonography. Results: We found five DM1 but no C girls with abnormally located terminal hair (Fishers exact, P < 0.05). Free androgen index increased throughout puberty in girls with DM1 (ANOVA, P < 0.0001), which was associated with a decrease in SHBG levels in girls with DM1 (ANOVA, P < 0.0001). Stimulated 17OH progesterone (17OHProg) increased throughout puberty only in girls with DM1 (ANOVA, P < 0.01). Girls with DM1 at Tanner stage 5 had higher stimulated LH to FSH ratio, testosterone, and 17OHProg levels than girls at Tanner stage 4. In contrast, in C girls the stimulated testosterone, 17OHProg, and LH to FSH ratio were similar at Tanner stages 4 and 5. Ovarian volumes and uterine length were larger in girls with DM1 (analysis of covariance, P < 0.05). Conclusions: These data suggest that patients with DM1 have differences in ovarian steroidogenic response to leuprolide, compared with C girls during puberty. Future studies in young women should clarify whether these findings are related to the pathogenesis of hyperandrogenism later in life This article has been cited by other articles:
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