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Teodoro Durá-Travé Department of Pediatrics, School of Medicine, University of Navarra, Pamplona, Spain
Department of Pediatrics, Navarra Hospital Complex, Pamplona, Spain
Navarra Institute for Health Research (IdisNA), Pamplona, Spain

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Fidel Gallinas-Victoriano Department of Pediatrics, Navarra Hospital Complex, Pamplona, Spain

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María Malumbres-Chacon Department of Pediatrics, Navarra Hospital Complex, Pamplona, Spain

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Lotfi Ahmed-Mohamed Department of Pediatrics, Navarra Hospital Complex, Pamplona, Spain

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María Jesús Chueca -Guindulain Department of Pediatrics, Navarra Hospital Complex, Pamplona, Spain
Navarra Institute for Health Research (IdisNA), Pamplona, Spain

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Sara Berrade-Zubiri Department of Pediatrics, Navarra Hospital Complex, Pamplona, Spain
Navarra Institute for Health Research (IdisNA), Pamplona, Spain

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sexual precocity have suppressed basal LH levels. That is, the presence of a high concentration of estradiol with low basal gonadotropins together with a rapid development of secondary sexual characteristics should compel to investigate for peripheral

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Sarmistha Banerjee Department of Biomedical Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, USA

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Allison M Hayes Department of Biomedical Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, USA

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Bernard H Shapiro Department of Biomedical Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, USA

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Introduction Sexual dimorphisms of some dozen or more hormone- and drug-metabolizing constituent cytochromes P450 (CYPs) observed in rats, humans, and many other species examined ( 1 ) are defined by two characteristics. (i) Following puberty

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Britt J van Keulen Emma Children’s Hospital, Amsterdam UMC, Vrije Universiteit Amsterdam, Pediatric Endocrinology, Amsterdam, The Netherlands

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Conor V Dolan Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands

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Bibian van der Voorn Department of Pediatric Endocrinology, Sophia Kinderziekenhuis, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

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Ruth Andrew Centre for Cardiovascular Science, University of Edinburgh, Queen’s Medical Research Institute, Edinburgh, UK

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Brian R Walker Centre for Cardiovascular Science, University of Edinburgh, Queen’s Medical Research Institute, Edinburgh, UK
Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK

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Hilleke Hulshoff Pol Department of Psychiatry, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands

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Dorret I Boomsma Department of Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands

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Joost Rotteveel Emma Children’s Hospital, Amsterdam UMC, Vrije Universiteit Amsterdam, Pediatric Endocrinology, Amsterdam, The Netherlands

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Martijn J J Finken Emma Children’s Hospital, Amsterdam UMC, Vrije Universiteit Amsterdam, Pediatric Endocrinology, Amsterdam, The Netherlands

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committee of the Amsterdam UMC, location VUmc. Participants were physically examined by a researcher for pubertal stage at ages 9 and 12 years. The examination was based on secondary sexual characteristics according to Marshall and Tanner, that is, breast

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Amar Osmancevic School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden

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Kristin Ottarsdottir School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden

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Margareta Hellgren School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden

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Ulf Lindblad School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden

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Bledar Daka School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden

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. ( https://doi.org/10.2164/jandrol.111.015065 ) 27 Tajar A Forti G O’Neill TW Lee DM Silman AJ Finn JD Bartfai G Boonen S Casanueva FF Giwercman A , Characteristics of secondary, primary, and compensated hypogonadism in aging men

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Silvia Ciancia Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium

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Vanessa Dubois Basic and Translational Endocrinology (BaTE), Department of Basic and Applied Medical Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium

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Martine Cools Department of Internal Medicine and Pediatrics, Ghent University, Pediatric Endocrinology Service, Ghent University Hospital, Ghent, Belgium

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youth healthcare. Current guidelines recommend the use of GnRH analogs (GnRHa) to suppress puberty and prevent the development of secondary sexual characteristics. At ages 15–16 years, gender-affirming hormones (GAH) are usually added (non

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Yijun Tang Department of Endocrinology and Metabolism, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China

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Yao Chen Department of Endocrinology and Metabolism, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China

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Jiayi Wang Department of Urology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China

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Qianwen Zhang Department of Endocrinology and Metabolism, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China

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Yirou Wang Department of Endocrinology and Metabolism, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China

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Yufei Xu Department of Medical Genetics and Molecular Diagnostic Laboratory, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China

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Xin Li Department of Endocrinology and Metabolism, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China

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Jian Wang International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China

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Xiumin Wang Department of Endocrinology and Metabolism, Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China

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secondary sexual characteristics during puberty, gynecomastia, and gender inconsistency between gonads and chromosomes showing 46,XY. Complete clinical data and genetic analysis results were evaluated. Subjects with any one of the following conditions were

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Sebastian Franik Department of Obstetrics and Gynaecology, Radboudumc, Nijmegen, The Netherlands

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Kathrin Fleischer Department of Obstetrics and Gynaecology, Radboudumc, Nijmegen, The Netherlands

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Barbara Kortmann Department of Pediatric Urology, Radboudumc, Nijmegen, The Netherlands

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Nike M Stikkelbroeck Department of Internal Medicine, Radboudumc, Nijmegen, The Netherlands

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Kathleen D’Hauwers Department of Urology, Radboudumc, Nijmegen, The Netherlands

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Claire Bouvattier Department of Pediatric Endocrinology, Bicêtre Hospital, Paris Sud University, Paris, France

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Jolanta Slowikowska-Hilczer Department of Andrology and Reproductive Endocrinology, Medical University of Lodz, Lodz, Poland

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Solange Grunenwald Department of Endocrinology and Metabolic Disease, Centre Hospitalier Universitaire de Toulouse, Toulouse, France

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Tim van de Grift Departments of Plastic Surgery and Medical Psychology, Amsterdam UMC Location VUmc, Amsterdam, The Netherlands

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Audrey Cartault Department of Pediatrics, Hospital des Enfants, Toulouse, France

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Annette Richter-Unruh Kinderendokrinologie und Diabetologie, Universitätsklinikum Ruhr-Universität Bochum, Kinderklinik, Bochum, Germany

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Nicole Reisch Medizinische Klinik and Poliklinik IV, Department of Endocrinology, University Hospital Munich, Munich, Germany

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Ute Thyen Klinik fur Kinder- und Jugendmedizin, Universitat zu Lubeck, Lubeck, Germany

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Joanna IntHout Department for Health Evidence, Radboudumc, Nijmegen, The Netherlands

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Hedi L Claahsen-van der Grinten Department of Pediatric Endocrinology, Amalia Childrens Hospital, Radboudumc, Nijmegen, The Netherlands

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the dsd-LIFE Group
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the dsd-LIFE Group

azoospermia is found in about 90% of adult men with KS ( 2 ). Other frequent clinical symptoms include gynecomastia, a low sexual drive, small testes and hypogonadism due to impaired testosterone production ( 3 , 4 ). KS is also associated with

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M Boering Isala, Diabetes Centre, Zwolle, The Netherlands

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P R van Dijk Isala, Diabetes Centre, Zwolle, The Netherlands
Isala, Department of Internal Medicine, Zwolle, The Netherlands

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S J J Logtenberg Diakonessenhuis, Department of Internal Medicine, Utrecht, The Netherlands
Langerhans Medical Research group, Zwolle, The Netherlands

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K H Groenier Isala, Diabetes Centre, Zwolle, The Netherlands
Department of General Practice, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

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B H R Wolffenbuttel Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

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R O B Gans Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

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N Kleefstra Isala, Diabetes Centre, Zwolle, The Netherlands
Langerhans Medical Research group, Zwolle, The Netherlands
Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

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H J G Bilo Isala, Diabetes Centre, Zwolle, The Netherlands
Isala, Department of Internal Medicine, Zwolle, The Netherlands
Department of Internal Medicine, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

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at the end of both treatment phases were used for analysis. Primary and secondary outcomes The primary outcome was the difference in SHBG concentrations between the CIPII and SC treatment phase. Secondary outcomes included the course of SHBG

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Athanasios Zervas Endocrine Unit, Athens Medical Centre, Athens, Greece

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George Chrousos Division of Endocrinology, Metabolism and Diabetes, First Department of Pediatrics, University Research Institute of Maternal and Child Health and Precision Medicine, and UNESCO Chair on Adolescent Health Care, National and Kapodistrian University of Athens, Athens, Greece
National and Kapodistrian University of Athens Medical School, ‘Aghia Sophia’ Children’s Hospital, Athens, Greece

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Sarantis Livadas Endocrine Unit, Athens Medical Centre, Athens, Greece

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time of diagnosis. At the onset of puberty, many patients with PROP1 mutations also exhibit LH and FSH deficiency and fail to develop secondary sexual characteristics (possibly applicable to Dopey). The loss of gonadotropins may also present as an

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Agnieszka Pazderska Department of Endocrinology, Newcastle-upon-Tyne Hospitals, Newcastle upon Tyne, UK
Department of Endocrinology, St James’s Hospital, Dublin, Ireland

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Yaasir Mamoojee Department of Endocrinology, Newcastle-upon-Tyne Hospitals, Newcastle upon Tyne, UK

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Satish Artham Department of Endocrinology, Newcastle-upon-Tyne Hospitals, Newcastle upon Tyne, UK

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Margaret Miller Department of Endocrinology, Newcastle-upon-Tyne Hospitals, Newcastle upon Tyne, UK

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Stephen G Ball Department of Endocrinology, Central Manchester University Hospitals, Manchester, UK
Department of Endocrinology, University of Manchester, Manchester, UK

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Tim Cheetham Endocrine Research Group, Institute of Genetic Medicine, University of Newcastle-upon-Tyne, Newcastle upon Tyne, UK
Department of Paediatric Endocrinology & Diabetes, Newcastle-upon-Tyne Hospitals, Newcastle upon Tyne, UK

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Richard Quinton Department of Endocrinology, Newcastle-upon-Tyne Hospitals, Newcastle upon Tyne, UK
Endocrine Research Group, Institute of Genetic Medicine, University of Newcastle-upon-Tyne, Newcastle upon Tyne, UK

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), the proportion of males with congenital hypogonadotrophic hypogonadism (CHH) rises steeply thereafter, eventually comprising the universality of cases by the third decade of life ( 2 ). Whereas both primary and secondary (CHH) ovarian insufficiencies

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