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Paris-Saclay University, Paris, France
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failure and infertility. Mini-puberty is a period of neonatal life which corresponds to an early and transient activation of the gonadotropic axis. Several studies have shown that this period is crucial for the early proliferation of Leydig and Sertoli
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axis at level of ovary) Increased incidence of autoimmunity ↑LH, FSH to GnRH stimulation 47,XXY Tall stature (onset may be in mid-childhood) Mini-puberty-contradictory results Childhood-↑INH B; Accelerated germ cell loss at
International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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). References 1 Johannsen TH Main KM Ljubicic ML Jensen TK Andersen HR Andersen MS Petersen JH Andersson AM Juul A . Sex differences in reproductive hormones during mini-puberty in infants with normal and disordered sex development
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Clinical Research Centre, Medical University of Bialystok, Białystok, Poland
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of circulating AMH levels throughout life can be split into several distinct phases. A peak shortly after birth confirms that girls also undergo a 'mini puberty' of the neonate, following which there is a sustained rise to the age of 9 years. There is
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stimulation test in childhood (total testosterone higher than 1.5 ng/mL ( 15 , 21 )) or hormonal assessment done during mini-puberty (total testosterone higher than 1.5 ng/mL). The sample included 5 cases of PAIS, 4 cases of 5AR2D and 10 cases of idiopathic
Faculty of Medicine, Department of Physiology, University of Helsinki, Helsinki, Finland
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Department of Pediatric Surgery, Children’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
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Faculty of Medicine, Department of Physiology, University of Helsinki, Helsinki, Finland
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Faculty of Medicine, Department of Physiology, University of Helsinki, Helsinki, Finland
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. Society for Endocrinology UK guidance on the evaluation of suspected disorders of sexual development: emphasising the opportunity to predict adolescent pubertal-failure through a neonatal diagnosis of absent mini-puberty. Clinical Endocrinology 2016
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activated during mini-puberty ( 1 ) right after birth and until approximately 3–6 months of age. However, when puberty is about to start, the HPG-axis is reactivated by activation of the so-called KNDy neurons (Kiss, NKB and Dyn positive neurons) ( 2
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remains the strongest discriminator between isolated DP and hypogonadotropic hypogonadism. These include microorchidism, cryptorchidism or micropenis, indicating a lack of prior ‘mini-puberty’ or the presence of other features of GnRH deficiency, which
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Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Service de psychopathologie du développement, Bron, France
Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Centre de biologie et pathologie Est, Service d’hormonologie, d’endocrinologie moléculaire et des maladies rares, Bron, France
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Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Centre de biologie et pathologie Est, Service d’hormonologie, d’endocrinologie moléculaire et des maladies rares, Bron, France
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Centre National de Référence Maladies Rares du développement génital du fœtus à l’adulte DEV-GEN, Hospices Civils de Lyon, Bron, France
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Université Claude Bernard, Lyon, France
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Centre National de Référence Maladies Rares du développement génital du fœtus à l’adulte DEV-GEN, Hospices Civils de Lyon, Bron, France
Université Claude Bernard, Lyon, France
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Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Service de chirurgie Uro-viscérale et de Transplantation de l’Enfant, Bron, France
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available for 68% ( n = 21) of patients. The median (range) baseline testosterone/DHT ratio was 8.8 (4.5–26.5). Among the 21 baseline ratios, 33% ( n = 7) were greater than 20, and among the 12 ratios established during mini-puberty, 75% ( n = 9) were