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Farrah L Saleh Section of Reproductive Endocrinology, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
Frank H. Netter School of Medicine, Quinnipiac University, North Haven, Connecticut, USA

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Aditi A Joshi Section of Reproductive Endocrinology, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA

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Aya Tal Section of Reproductive Endocrinology, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA

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Patricia Xu Section of Reproductive Endocrinology, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA

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Julie R Hens Section of Endocrinology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA

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Serena L Wong Department of Pathology, Yale School of Medicine, New Haven, Connecticut, USA

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Clare A Flannery Section of Reproductive Endocrinology, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
Section of Endocrinology, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA

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Introduction Obesity is associated with early puberty and ovulatory dysfunction in girls ( Kaplowitz et al. 2001 , Freedman et al. 2002 , INSERM Collective Expertise Centre 2007 ). Obesity affects more than 18% of children ages 6

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Christina Corre Division of Endocrinology, Division of Hematology/Oncology, Departments of Pediatrics and Internal Medicine, Institute for Molecular Medicine, Genetics and Genome Biology Program, Department of Computer Science, Departments of Paediatrics and Physiology, The Hospital for Sick Children, 555 University Avenue, Toronto ON, M5G 1X8, Canada

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Gen Shinoda Division of Endocrinology, Division of Hematology/Oncology, Departments of Pediatrics and Internal Medicine, Institute for Molecular Medicine, Genetics and Genome Biology Program, Department of Computer Science, Departments of Paediatrics and Physiology, The Hospital for Sick Children, 555 University Avenue, Toronto ON, M5G 1X8, Canada

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Hao Zhu Division of Endocrinology, Division of Hematology/Oncology, Departments of Pediatrics and Internal Medicine, Institute for Molecular Medicine, Genetics and Genome Biology Program, Department of Computer Science, Departments of Paediatrics and Physiology, The Hospital for Sick Children, 555 University Avenue, Toronto ON, M5G 1X8, Canada

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Diana L Cousminer Division of Endocrinology, Division of Hematology/Oncology, Departments of Pediatrics and Internal Medicine, Institute for Molecular Medicine, Genetics and Genome Biology Program, Department of Computer Science, Departments of Paediatrics and Physiology, The Hospital for Sick Children, 555 University Avenue, Toronto ON, M5G 1X8, Canada
Division of Endocrinology, Division of Hematology/Oncology, Departments of Pediatrics and Internal Medicine, Institute for Molecular Medicine, Genetics and Genome Biology Program, Department of Computer Science, Departments of Paediatrics and Physiology, The Hospital for Sick Children, 555 University Avenue, Toronto ON, M5G 1X8, Canada

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Christine Crossman Division of Endocrinology, Division of Hematology/Oncology, Departments of Pediatrics and Internal Medicine, Institute for Molecular Medicine, Genetics and Genome Biology Program, Department of Computer Science, Departments of Paediatrics and Physiology, The Hospital for Sick Children, 555 University Avenue, Toronto ON, M5G 1X8, Canada

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Christian Bellissimo Division of Endocrinology, Division of Hematology/Oncology, Departments of Pediatrics and Internal Medicine, Institute for Molecular Medicine, Genetics and Genome Biology Program, Department of Computer Science, Departments of Paediatrics and Physiology, The Hospital for Sick Children, 555 University Avenue, Toronto ON, M5G 1X8, Canada

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Anna Goldenberg Division of Endocrinology, Division of Hematology/Oncology, Departments of Pediatrics and Internal Medicine, Institute for Molecular Medicine, Genetics and Genome Biology Program, Department of Computer Science, Departments of Paediatrics and Physiology, The Hospital for Sick Children, 555 University Avenue, Toronto ON, M5G 1X8, Canada
Division of Endocrinology, Division of Hematology/Oncology, Departments of Pediatrics and Internal Medicine, Institute for Molecular Medicine, Genetics and Genome Biology Program, Department of Computer Science, Departments of Paediatrics and Physiology, The Hospital for Sick Children, 555 University Avenue, Toronto ON, M5G 1X8, Canada

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George Q Daley Division of Endocrinology, Division of Hematology/Oncology, Departments of Pediatrics and Internal Medicine, Institute for Molecular Medicine, Genetics and Genome Biology Program, Department of Computer Science, Departments of Paediatrics and Physiology, The Hospital for Sick Children, 555 University Avenue, Toronto ON, M5G 1X8, Canada

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Mark R Palmert Division of Endocrinology, Division of Hematology/Oncology, Departments of Pediatrics and Internal Medicine, Institute for Molecular Medicine, Genetics and Genome Biology Program, Department of Computer Science, Departments of Paediatrics and Physiology, The Hospital for Sick Children, 555 University Avenue, Toronto ON, M5G 1X8, Canada
Division of Endocrinology, Division of Hematology/Oncology, Departments of Pediatrics and Internal Medicine, Institute for Molecular Medicine, Genetics and Genome Biology Program, Department of Computer Science, Departments of Paediatrics and Physiology, The Hospital for Sick Children, 555 University Avenue, Toronto ON, M5G 1X8, Canada

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Introduction Women tend to be shorter than men, and girls have their growth spurt at an earlier phase in puberty than boys ( Styne & Grumbach 2012 ). Girls also experience puberty at younger ages than boys and are more likely to exhibit precocious

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Rodolfo C Cardoso Animal Reproduction Laboratory, Department of Animal Science, Division of Animal Sciences, Texas A&M AgriLife Research Station, 3507 Highway 59E, Beeville, Texas 78102, USA
Animal Reproduction Laboratory, Department of Animal Science, Division of Animal Sciences, Texas A&M AgriLife Research Station, 3507 Highway 59E, Beeville, Texas 78102, USA

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Bruna R C Alves Animal Reproduction Laboratory, Department of Animal Science, Division of Animal Sciences, Texas A&M AgriLife Research Station, 3507 Highway 59E, Beeville, Texas 78102, USA

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Ligia D Prezotto Animal Reproduction Laboratory, Department of Animal Science, Division of Animal Sciences, Texas A&M AgriLife Research Station, 3507 Highway 59E, Beeville, Texas 78102, USA
Animal Reproduction Laboratory, Department of Animal Science, Division of Animal Sciences, Texas A&M AgriLife Research Station, 3507 Highway 59E, Beeville, Texas 78102, USA

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Jennifer F Thorson Animal Reproduction Laboratory, Department of Animal Science, Division of Animal Sciences, Texas A&M AgriLife Research Station, 3507 Highway 59E, Beeville, Texas 78102, USA
Animal Reproduction Laboratory, Department of Animal Science, Division of Animal Sciences, Texas A&M AgriLife Research Station, 3507 Highway 59E, Beeville, Texas 78102, USA

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Luis O Tedeschi Animal Reproduction Laboratory, Department of Animal Science, Division of Animal Sciences, Texas A&M AgriLife Research Station, 3507 Highway 59E, Beeville, Texas 78102, USA

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Duane H Keisler Animal Reproduction Laboratory, Department of Animal Science, Division of Animal Sciences, Texas A&M AgriLife Research Station, 3507 Highway 59E, Beeville, Texas 78102, USA

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Marcel Amstalden Animal Reproduction Laboratory, Department of Animal Science, Division of Animal Sciences, Texas A&M AgriLife Research Station, 3507 Highway 59E, Beeville, Texas 78102, USA

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Gary L Williams Animal Reproduction Laboratory, Department of Animal Science, Division of Animal Sciences, Texas A&M AgriLife Research Station, 3507 Highway 59E, Beeville, Texas 78102, USA
Animal Reproduction Laboratory, Department of Animal Science, Division of Animal Sciences, Texas A&M AgriLife Research Station, 3507 Highway 59E, Beeville, Texas 78102, USA

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demonstrated to delay puberty ( Kennedy & Mitra 1963 , Kennedy 1969 , Foster & Olster 1985 , Kile et al . 1991 ), whereas increased adiposity accelerates reproductive maturation in mammals ( Frisch & McArthur 1974 , Lee et al . 2007 , Castellano et al

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M J Vazquez Instituto Maimónides de Investigación Biomédica de Cordoba (IMIBIC), Cordoba, Spain
Department of Cell Biology, Physiology and Immunology, University of Cordoba, Cordoba, Spain
Hospital Universitario Reina Sofia, Cordoba, Spain
CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Cordoba, Spain

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I Velasco Instituto Maimónides de Investigación Biomédica de Cordoba (IMIBIC), Cordoba, Spain
Department of Cell Biology, Physiology and Immunology, University of Cordoba, Cordoba, Spain

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M Tena-Sempere Instituto Maimónides de Investigación Biomédica de Cordoba (IMIBIC), Cordoba, Spain
Department of Cell Biology, Physiology and Immunology, University of Cordoba, Cordoba, Spain
Hospital Universitario Reina Sofia, Cordoba, Spain
CIBER Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Cordoba, Spain
FiDiPro Program, Department of Physiology, University of Turku, Turku, Finland

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The neurobiological basis of puberty in mammals Puberty is a complex maturational phenomenon that drives the individual from an immature to a fully mature stage, when the capacity to reproduce is achieved. While the multifaceted nature of

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William L Dees Veterinary Integrative Biosciences, College of Veterinary Medicine, Texas A&M University, College Station, Texas, USA

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Jill K Hiney Veterinary Integrative Biosciences, College of Veterinary Medicine, Texas A&M University, College Station, Texas, USA

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Vinod K Srivastava Veterinary Integrative Biosciences, College of Veterinary Medicine, Texas A&M University, College Station, Texas, USA

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Introduction The time at which puberty begins is the culmination of a series of events within the hypothalamus that results in the increased pulsatile release of luteinizing hormone-releasing hormone (LHRH) secretion. This change in LHRH

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Romain Fontaine Department of Preclinical Sciences and Pathology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway

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Eirill Ager-Wick Department of Preclinical Sciences and Pathology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway

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Kjetil Hodne Department of Preclinical Sciences and Pathology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway

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Finn-Arne Weltzien Department of Preclinical Sciences and Pathology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway

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, ontogeny and regulation of Lh cells. In medaka, Lh cells have been found to participate in the plasticity of the pituitary during puberty through hypertrophy and estrogen-sensitive hyperplasia during puberty ( Fontaine et al . 2019 ). Lh cells have also

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William Zawatski Pediatric Endocrine Division, Department of Pediatrics

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Mary M Lee
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relating to EDC exposure and male pubertal timing. Male pubertal development Puberty is an important parameter of reproductive health, marking the sexual maturation of the hypothalamic–pituitary–gonadal (HPG) axis that culminates in adult hormonal profiles

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Xiaonan Yan State Key Laboratory of Reproductive Medicine, Xuzhou Medical College, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China
State Key Laboratory of Reproductive Medicine, Xuzhou Medical College, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China

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Chun Yuan State Key Laboratory of Reproductive Medicine, Xuzhou Medical College, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China

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Nannan Zhao State Key Laboratory of Reproductive Medicine, Xuzhou Medical College, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China

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Yugui Cui State Key Laboratory of Reproductive Medicine, Xuzhou Medical College, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China

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Jiayin Liu State Key Laboratory of Reproductive Medicine, Xuzhou Medical College, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China

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( Franks 2012 ). Peripubertal reproductive and metabolic dysfunctions, including anovulation, hyperandrogenism, insulin resistance, and hyperinsulinemia, are present in adolescents with PCOS before the onset of puberty and persist during pubertal

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K A Chan Departments of Biochemistry and Biomedical Sciences, Pediatrics, Obstetrics and Gynecology, McMaster University, 1280 Main Street West HSC 4H30A, Hamilton, Ontario, Canada L8S 4K1

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M W Tsoulis Departments of Biochemistry and Biomedical Sciences, Pediatrics, Obstetrics and Gynecology, McMaster University, 1280 Main Street West HSC 4H30A, Hamilton, Ontario, Canada L8S 4K1

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D M Sloboda Departments of Biochemistry and Biomedical Sciences, Pediatrics, Obstetrics and Gynecology, McMaster University, 1280 Main Street West HSC 4H30A, Hamilton, Ontario, Canada L8S 4K1
Departments of Biochemistry and Biomedical Sciences, Pediatrics, Obstetrics and Gynecology, McMaster University, 1280 Main Street West HSC 4H30A, Hamilton, Ontario, Canada L8S 4K1
Departments of Biochemistry and Biomedical Sciences, Pediatrics, Obstetrics and Gynecology, McMaster University, 1280 Main Street West HSC 4H30A, Hamilton, Ontario, Canada L8S 4K1

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regulate the production of GNRH and LH/FSH ( Popat et al . 2008 ). It is not until puberty that GNRH pulsatility is sufficient to induce ovulation of late-antral or fully-grown follicles ( Kawagoe & Hiroi 1983 , Grumbach 2002 , Russell & Robker 2007

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J Bryce Ortiz Barrow Neurological Institute at Phoenix Children’s Hospital, Phoenix, Arizona, USA
Department of Child Health, University of Arizona College of Medicine, Phoenix, Arizona, USA

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Sebastian Tellez Arizona State University, School of Life Sciences, Tempe, Arizona, USA

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Giri Rampal Department of Child Health, University of Arizona College of Medicine, Phoenix, Arizona, USA
Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom

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Grant S Mannino Department of Integrative Physiology, University of Colorado, Boulder, Colorado, USA

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Nicole Couillard Department of Integrative Physiology, University of Colorado, Boulder, Colorado, USA

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Matias Mendez Department of Integrative Physiology, University of Colorado, Boulder, Colorado, USA

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Tabitha R F Green Department of Integrative Physiology, University of Colorado, Boulder, Colorado, USA

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Sean M Murphy Department of Integrative Physiology, University of Colorado, Boulder, Colorado, USA

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Rachel K Rowe Department of Integrative Physiology, University of Colorado, Boulder, Colorado, USA

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population ( Ortiz et al. 2019 ). Furthermore, we have reported the predominant endocrine disorder diagnoses following pediatric TBI is ‘precocious sexual development and puberty’, followed by, ‘pituitary dwarfism/GH deficiencies’ ( Ortiz et al. 2019

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