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Marie Lindhardt Ljubicic Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
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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Trine Holm Johannsen Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
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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Margit Bistrup Fischer Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
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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Emmie N Upners Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
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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Alexander S Busch Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
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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Katharina M Main Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
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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Anna-Maria Andersson Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
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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Casper P Hagen Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
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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Anders Juul Department of Growth and Reproduction, Copenhagen University Hospital – Rigshospitalet, Copenhagen, Denmark
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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Introduction Luteinizing hormone (LH) and follicle-stimulating hormone (FSH), both produced in the gonadotropic cells of the anterior pituitary gland, have recently been described as an excellent marker of sex when combined in the LH/FSH ratio

Article Type:
Review Article
Collections:
Paediatric Endocrinology
DOI:
https://doi.org/10.1530/EC-22-0275
Volume/Issue:
Volume 12: Issue 3
Open access
David Mark Robertson Department of Molecular and Translational Sciences, Hudson Institute of Medical Research, Monash University, Clayton, Victoria, Australia
School of Women’s & Children’s Health, Discipline of Obstetrics and Gynaecology, University of New South Wales, Sydney, Australia

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Chel Hee Lee Clinical Research Support Unit, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada

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Angela Baerwald Department of Obstetrics, Gynecology & Reproductive Sciences, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada

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Introduction It is well recognised that ovarian hormones exert a strong inhibitory effect on the pituitary secretion of FSH and LH, as reflected by a 6- to 12-fold increase in the human pituitary secretion of FSH and LH after ovariectomy ( 1

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-16-0077
Volume/Issue:
Volume 5: Issue 6
Open access
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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performed by determining serum LH and FSH at baseline (between 8:00 h and 9:00 h after an overnight fast) and 4 h post subcutaneous administration of GnRH analog (leuprorelin, 500 µg). LH and follicular stimulating hormone (FSH) were measured by highly

Article Type:
Research Article
Collections:
Paediatric Endocrinology Collection
DOI:
https://doi.org/10.1530/EC-20-0651
Volume/Issue:
Volume 10: Issue 2
Open access
Lian Hollander-Cohen Department of Animal Sciences, The Robert H. Smith Faculty of Agriculture, Food, and Environment, Hebrew University of Jerusalem, Rehovot, Israel

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Benjamin Böhm Department of Animal Sciences, The Robert H. Smith Faculty of Agriculture, Food, and Environment, Hebrew University of Jerusalem, Rehovot, Israel

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Krist Hausken Department of Animal Sciences, The Robert H. Smith Faculty of Agriculture, Food, and Environment, Hebrew University of Jerusalem, Rehovot, Israel

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Berta Levavi-Sivan Department of Animal Sciences, The Robert H. Smith Faculty of Agriculture, Food, and Environment, Hebrew University of Jerusalem, Rehovot, Israel

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brain culminate in a signal to the pituitary gland to release the gonadotropins (GTHs). The pituitary GTHs include follicle-stimulating hormone (FSH) and luteinizing hormone (LH), and together are responsible for gametogenesis, steroidogenesis, protein

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-19-0389
Volume/Issue:
Volume 8: Issue 11
Open access
Mikkel Andreassen Department of Endocrinology, Faculty of Health Science, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Anders Juul Department of Growth and Reproduction, Faculty of Health Science, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Ulla Feldt-Rasmussen Department of Endocrinology, Faculty of Health Science, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Niels Jørgensen Department of Growth and Reproduction, Faculty of Health Science, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Introduction The gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH) are released from the gonadotropic cells in the anterior pituitary gland. In men, the main target cells for LH are Leydig cells with subsequent

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-18-0061
Volume/Issue:
Volume 7: Issue 4
Open access
Clara Lundetoft Clausen Center of Research & Disruption of Infectious Diseases, Department of Infectious Diseases, Copenhagen University Hospital – Amager and Hvidovre, Hvidovre, Denmark
Department of Infectious Diseases, Copenhagen University Hospital – Amager and Hvidovre, Hvidovre, Denmark

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Trine Holm Johannsen Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark

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Niels Erik Skakkebæk Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark

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Hanne Frederiksen Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark

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Camilla Koch Ryrsø Department of Pulmonary and Infectious Diseases, Copenhagen University Hospital – Nordsjælland, Hillerød, Denmark
Centre for Physical Activity Research, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark

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Arnold Matovu Dungu Department of Pulmonary and Infectious Diseases, Copenhagen University Hospital – Nordsjælland, Hillerød, Denmark

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Maria Hein Hegelund Department of Pulmonary and Infectious Diseases, Copenhagen University Hospital – Nordsjælland, Hillerød, Denmark

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Daniel Faurholt-Jepsen Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark

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Rikke Krogh-Madsen Department of Infectious Diseases, Copenhagen University Hospital – Amager and Hvidovre, Hvidovre, Denmark
Centre for Physical Activity Research, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark

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Birgitte Lindegaard Department of Pulmonary and Infectious Diseases, Copenhagen University Hospital – Nordsjælland, Hillerød, Denmark
Centre for Physical Activity Research, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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Allan Linneberg Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
Center for Clinical Research and Prevention, Copenhagen University Hospital – Bispebjerg and Frederiksberg, Copenhagen, Denmark

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Line Lund Kårhus Center for Clinical Research and Prevention, Copenhagen University Hospital – Bispebjerg and Frederiksberg, Copenhagen, Denmark

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Anders Juul Department of Growth and Reproduction, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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Thomas Benfield Center of Research & Disruption of Infectious Diseases, Department of Infectious Diseases, Copenhagen University Hospital – Amager and Hvidovre, Hvidovre, Denmark
Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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to 25% at age>70 years) ( 10 ). In this context, we studied concentrations of testosterone, estrone sulfate, luteinizing hormone (LH), and follicle-stimulating hormone (FSH) among patients hospitalized with COVID-19, and their impact on mortality and

Article Type:
Research Article
Collections:
Pituitary and Hypothalamus
DOI:
https://doi.org/10.1530/EC-22-0444
Volume/Issue:
Volume 12: Issue 1
Open access
Eleftherios E Deiktakis Laboratory of Clinical Chemistry, School of Medicine, University of Crete, Heraklion, Greece

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Eleftheria Ieronymaki Laboratory of Clinical Chemistry, School of Medicine, University of Crete, Heraklion, Greece

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Peter Zarén Department of Translational Medicine, Lund University, Malmö, Sweden

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Agnes Hagsund Department of Translational Medicine, Lund University, Malmö, Sweden

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Elin Wirestrand Department of Translational Medicine, Lund University, Malmö, Sweden

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Johan Malm Department of Translational Medicine, Lund University, Malmö, Sweden

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Christos Tsatsanis Laboratory of Clinical Chemistry, School of Medicine, University of Crete, Heraklion, Greece

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Ilpo T Huhtaniemi Department of Translational Medicine, Lund University, Malmö, Sweden
Imperial College London, Institute of Reproductive and Developmental Biology, London, UK

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Aleksander Giwercman Department of Translational Medicine, Lund University, Malmö, Sweden
Malmö University Hospital, Reproductive Medicine Center, Malmö, Sweden

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Yvonne Lundberg Giwercman Department of Translational Medicine, Lund University, Malmö, Sweden

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(LH), a potential caveat is the rebound of follicle-stimulating hormone (FSH) after its initial suppression. In contrast, the recently introduced GnRH antagonists provide permanent suppression of both gonadotropins ( 2 ), which may offer a therapeutic

Article Type:
Research Article
Collections:
Hormones and Cancer
DOI:
https://doi.org/10.1530/EC-21-0639
Volume/Issue:
Volume 11: Issue 6
Open access
Yunting Lin Department of Surgical Medicine, Ningbo Medical Center Lihuili Hospital, Ningbo, Zhejiang, China

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Endi Song Department of Internal Medicine, Ningbo Yinzhou No.2 Hospital, Ningbo, Zhejiang, China

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Han Jin Department of Medicine, Ningbo University, Ningbo, Zhejiang, China

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Yong Jin Department of Internal Medicine, Ningbo Yinzhou No.2 Hospital, Ningbo, Zhejiang, China

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postmenopausal women (with the decrease of E2 level and the increase of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) levels), the incidence of CVD events significantly increased, becoming similar to that in men ( 21 , 22 ). However, a growing

Article Type:
Research Article
Collections:
Obesity
DOI:
https://doi.org/10.1530/EC-24-0190
Volume/Issue:
Volume 13: Issue 9
Open access
Xinyuan Zhang Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China

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Suiyan Li School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China

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Hongwei Liu Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China

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Huai Bai Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China

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Qingqing Liu Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China

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Chunyi Yang Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China

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Ping Fan Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China

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), malondialdehyde (MDA), total antioxidant capacity (T-AOC), oxidative stress index (OSI), TT, estradiol (E 2 ), luteinizing hormone (LH), follicle-stimulating hormone (FSH), sex hormone-binding globulin (SHBG), free androgen index (FAI), HDL-cholesterol (HDL

Article Type:
Research Article
Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-23-0463
Volume/Issue:
Volume 13: Issue 3
Open access
Sidsel Mathiesen Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Kaspar Sørensen Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Marianne Ifversen Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Casper P Hagen Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Jørgen Holm Petersen Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
Section of Biostatistics, Department of Public Health, University of Copenhagen, Copenhagen, Denmark

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Anders Juul Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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Klaus Müller Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

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risk of azoospermia). Reproductive hormones and semen samples From a clinical database, we obtained registered daytime circulating levels of follicle-stimulating hormone (FSH), LH, total testosterone, and inhibin B as well as registered semen

Article Type:
Research Article
Collections:
Paediatric Endocrinology Collection
DOI:
https://doi.org/10.1530/EC-21-0154
Volume/Issue:
Volume 10: Issue 10
Open access