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Nathalie Ly Department of Endocrinology and Reproductive Medicine, Reference Center for Rare Endocrine Diseases of Growth and Development, Reference Center for Gynecological Rare Diseases, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, Paris, France
EndoERN, APHP Consortium Pitie Salpetriere Hospital, Necker Hospital, Paris, France

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Sophie Dubreuil Department of Endocrinology and Reproductive Medicine, Reference Center for Rare Endocrine Diseases of Growth and Development, Reference Center for Gynecological Rare Diseases, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, Paris, France
EndoERN, APHP Consortium Pitie Salpetriere Hospital, Necker Hospital, Paris, France

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Philippe Touraine Department of Endocrinology and Reproductive Medicine, Reference Center for Rare Endocrine Diseases of Growth and Development, Reference Center for Gynecological Rare Diseases, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, Paris, France
EndoERN, APHP Consortium Pitie Salpetriere Hospital, Necker Hospital, Paris, France
Sorbonne University, Paris, France

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growth, ovarian steroidogenesis, ovulation and oocyte quality). GH and its receptor have been detected at each step of ovarian folliculogenesis ( 4 ). In vitro , GH stimulates estradiol production by follicles ( 2 , 3 , 5 , 6 ) and progesterone

Article Type:
Research Article
Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-22-0241
Volume/Issue:
Volume 11: Issue 12
Open access
Jennifer K Y Ko Department of Obstetrics and Gynecology, The University of Hong Kong, Hong Kong Special Administrative Region, Hong Kong, China

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Jinghua Shi Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Beijing, China

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Raymond H W Li Department of Obstetrics and Gynecology, The University of Hong Kong, Hong Kong Special Administrative Region, Hong Kong, China

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William S B Yeung Department of Obstetrics and Gynecology, The University of Hong Kong, Hong Kong Special Administrative Region, Hong Kong, China

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Ernest H Y Ng Department of Obstetrics and Gynecology, The University of Hong Kong, Hong Kong Special Administrative Region, Hong Kong, China

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stimulation cycle ( 26 , 27 ). This retrospective analysis was designed to evaluate the effect of serum 25(OH)D level prior to ovarian stimulation on the CLBR of the first IVF cycle. Methods This was a retrospective study carried out at the Centre of

Article Type:
Research Article
Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-21-0444
Volume/Issue:
Volume 11: Issue 2
Open access
Elinor Chelsom Vogt Department of Clinical Science, University of Bergen, Bergen, Norway
K.G. Jebsen Center for Autoimmune Disorders, University of Bergen, Bergen, Norway
Department of Medicine, Haukeland University Hospital, Bergen, Norway

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Francisco Gómez Real Department of Clinical Science, University of Bergen, Bergen, Norway
Department of Gynecology and Obstetrics, Haukeland University Hospital, Bergen, Norway

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Eystein Sverre Husebye Department of Clinical Science, University of Bergen, Bergen, Norway
K.G. Jebsen Center for Autoimmune Disorders, University of Bergen, Bergen, Norway
Department of Medicine, Haukeland University Hospital, Bergen, Norway

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Sigridur Björnsdottir Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
Department of Endocrinology, Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden

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Bryndis Benediktsdottir Medical Faculty, University of Iceland, Reykjavik, Iceland
Department of Sleep, Landspitali University Hospital Reykjavík, Reykjavik, Iceland

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Randi Jacobsen Bertelsen Department of Clinical Science, University of Bergen, Bergen, Norway

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Pascal Demoly University Hospital of Montpellier, IDESP, Univ Montpellier-Inserm, Montpellier, France

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Karl Anders Franklin Department of Surgical and Perioperative Sciences, Surgery, Umeå University, Umeå, Sweden

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Leire Sainz de Aja Gallastegui Unit of Epidemiology and Public Health, Department of Health, Basque Government, Vitoria-Gasteiz, Spain

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Francisco Javier Callejas González Department of Respiratory Medicine, Albacete University Hospital, Albacete, Spain

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Joachim Heinrich Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Munich, Germany
Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia

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Mathias Holm Occupational and Environmental Medicine, School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden

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Nils Oscar Jogi Department of Clinical Science, University of Bergen, Bergen, Norway

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Benedicte Leynaert Université Paris-Saclay, Inserm U1018, Center for Epidemiology and Population Health, Integrative Respiratory Epidemiology Team, Villejuif, France

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Eva Lindberg Department of Medical Sciences, Respiratory, Allergy and Sleep Medicine, Uppsala University, Uppsala, Sweden

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Andrei Malinovschi Department of Medical Sciences, Clinical Physiology, Uppsala University, Uppsala, Sweden

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Jesús Martínez-Moratalla Pneumology Service of the General University Hospital of Albacete, Albacete, Spain
Albacete Faculty of Medicine, Castilla-La Mancha University, Albacete, Spain

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Raúl Godoy Mayoral Department of Respiratory Medicine, Albacete University Hospital, Albacete, Spain

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Anna Oudin Section of Sustainable Health, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden

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Antonio Pereira-Vega Juan Ramón Jiménez University Hospital in Huelva, Huelva, Spain

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Chantal Raherison Semjen INSERM, EpiCene Team U1219, University of Bordeaux, Talence, France

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Vivi Schlünssen Department of Public Health, Environment, Work and Health, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark
The National Research Center for the Working Environment, Copenhagen, Denmark

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Kai Triebner Department of Clinical Science, University of Bergen, Bergen, Norway

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Marianne Øksnes Department of Clinical Science, University of Bergen, Bergen, Norway
K.G. Jebsen Center for Autoimmune Disorders, University of Bergen, Bergen, Norway
Department of Medicine, Haukeland University Hospital, Bergen, Norway

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hypoestrogenism. If the deficiency is located in the ovary, it is referred to as primary ovarian insufficiency (POI), characterized by low estradiol levels promoting high follicle-stimulating hormone (FSH) levels, due to lack of negative feedback ( 9 ). Early

Article Type:
Research Article
Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-22-0024
Volume/Issue:
Volume 11: Issue 5
Open access
Małgorzata Więcek Department of Pediatrics and Pediatric Endocrinology, Faculty of Medical Sciences, Medical University of Silesia, Katowice, Poland

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Jakub Gawlik Student Scientific Society at the Department of Pathophysiology, Jagiellonian University Medical College, Krakow, Poland

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Zuzanna Nowak Student Scientific Society at the Department of Pathophysiology, Jagiellonian University Medical College, Krakow, Poland

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Aneta Gawlik Department of Pediatrics and Pediatric Endocrinology, Faculty of Medical Sciences, Medical University of Silesia, Katowice, Poland

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, FSH before ovarian stimulation was above >15 mIU/mL. Better results are achieved when FSH is combined with other factors, as is shown in a retrospective study by Volodarsky-Perel ( 26 ). Combining FSH ≤ 20 mIU/mL with anti-Mullerian hormone (AMH) > 0

Article Type:
Review Article
Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-22-0344
Volume/Issue:
Volume 11: Issue 12
Open access
Yanfei Chen Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, China

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Mei Li Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, China

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Binrong Liao Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, China

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Jingzi Zhong Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, China

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Dan Lan Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, China

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endocrinologist. BA and uterine and ovarian ultrasounds were performed in girls with CPP and PT. BMI was calculated as weight (kg) /height (m) 2 . The GnRH stimulation test was carried out by subcutaneously injecting 2.5 μg/kg (up to 100 μg) of triptorelin

Article Type:
Research Article
Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-22-0028
Volume/Issue:
Volume 11: Issue 4
Open access
Alan D Rogol Department of Pediatrics, University of Virginia, Charlottesville, Virginia, USA

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47,XXX Tall stature FSH, LH slightly ↑compared to controls Hypotonia ↑LH, FSH to GnRH stimulation Spontaneous puberty and menarche (on time) E2 INH B, ovarian volume ↓ Fertility is likely (All indicative of dysregulated HPG

Article Type:
Review Article
Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-22-0440
Volume/Issue:
Volume 12: Issue 9
Open access
Yufen Zhao College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, PR China
Key Laboratory of Animal Embryo and Development Engineering of Autonomous Region Universities, Inner Mongolia Agricultural University, Hohhot, PR China

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Erge Namei College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, PR China
Key Laboratory of Animal Embryo and Development Engineering of Autonomous Region Universities, Inner Mongolia Agricultural University, Hohhot, PR China

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Bingxue Yang College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, PR China
Key Laboratory of Animal Embryo and Development Engineering of Autonomous Region Universities, Inner Mongolia Agricultural University, Hohhot, PR China

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Xiangnan Bao Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal, Hohhot, PR China
National Center of Technology Innovation for Dairy Industry, Hohhot, PR China

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Wei Sun Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal, Hohhot, PR China

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Gerile Subudeng College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, PR China
Key Laboratory of Animal Embryo and Development Engineering of Autonomous Region Universities, Inner Mongolia Agricultural University, Hohhot, PR China

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Guifang Cao College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, PR China
Key Laboratory of Animal Embryo and Development Engineering of Autonomous Region Universities, Inner Mongolia Agricultural University, Hohhot, PR China

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Haijun Li College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, PR China
Key Laboratory of Animal Embryo and Development Engineering of Autonomous Region Universities, Inner Mongolia Agricultural University, Hohhot, PR China

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Gui Wang Animal Genetic Breeding and Reproduction Research Center, Hetao College, Bayannur, PR China

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prevents inhibitors in CCs from reaching oocytes, eventually leading to meiotic resumption ( 15 , 16 ). However, this hypothesis is not fully considered. Various studies have shown that administration with follicle-stimulating hormone (FSH) in goats ( 17

Article Type:
Research Article
Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-23-0337
Volume/Issue:
Volume 12: Issue 11
Open access
Xiying Zeng The Third Clinical Medical College, Fujian Medical University, Fuzhou, China

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Yinxiang Huang Department of Endocrinology and Diabetes, The First Affiliated Hospital, Xiamen University, Xiamen, China

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Mulin Zhang Department of Endocrinology and Diabetes, The First Affiliated Hospital, Xiamen University, Xiamen, China

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Yun Chen The Third Clinical Medical College, Fujian Medical University, Fuzhou, China

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Jiawen Ye The Third Clinical Medical College, Fujian Medical University, Fuzhou, China

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Yan Han School of Medicine, Xiamen University, Xiamen, China

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Danyan Ma School of Medicine, Xiamen University, Xiamen, China

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Xin Zheng Department of Endocrinology and Diabetes, The First Affiliated Hospital, Xiamen University, Xiamen, China

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Xiaohong Yan Reproductive Medicine Center, The First Affiliated Hospital of Xiamen University, Xiamen, China

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Changqin Liu The Third Clinical Medical College, Fujian Medical University, Fuzhou, China
Department of Endocrinology and Diabetes, The First Affiliated Hospital, Xiamen University, Xiamen, China
Fujian Province Key Laboratory of Diabetes Translational Medicine, Xiamen, China

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hypothesis requires further biological research. In addition, hyperinsulinemia resulting from IR stimulates ovarian steroidogenesis and inhibits sex hormone-binding globulin production in the liver, thereby increasing the availability of free androgens. The

Article Type:
Research Article
Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-21-0243
Volume/Issue:
Volume 11: Issue 1
Open access
Yasmin Shibli Abu Raya Department of Obstetrics & Gynecology, Gynecological Research Laboratory, Hillel Yaffe Medical Center, Hadera, Israel

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Asaf Bilgory Department of Obstetrics & Gynecology, Gynecological Research Laboratory, Hillel Yaffe Medical Center, Hadera, Israel

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Nardin Aslih Department of Obstetrics & Gynecology, Gynecological Research Laboratory, Hillel Yaffe Medical Center, Hadera, Israel

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Yuval Atzmon Department of Obstetrics & Gynecology, Gynecological Research Laboratory, Hillel Yaffe Medical Center, Hadera, Israel

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Maya Shavit Department of Obstetrics & Gynecology, Gynecological Research Laboratory, Hillel Yaffe Medical Center, Hadera, Israel

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Daniela Estrada Department of Obstetrics & Gynecology, Gynecological Research Laboratory, Hillel Yaffe Medical Center, Hadera, Israel

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Moamina Sharqawi Department of Obstetrics & Gynecology, Gynecological Research Laboratory, Hillel Yaffe Medical Center, Hadera, Israel

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Einat Shalom-Paz Department of Obstetrics & Gynecology, Gynecological Research Laboratory, Hillel Yaffe Medical Center, Hadera, Israel
Ruth and Bruce Rappaport School of Medicine, The Technion Institute of Technology, Haifa, Israel

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. Ovarian stimulation and oocyte retrieval Stimulation protocols were performed using either gonadotropin-releasing hormone (GnRH) agonist (that are either flare protocols or long downregulation protocols) on one hand or antagonist protocol on the other

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Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-23-0189
Volume/Issue:
Volume 12: Issue 11
Open access
R H M Dykgraaf Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

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S Schalekamp-Timmermans Division of Obstetrics and Fetal Medicine, Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

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M C Adank Division of Obstetrics and Fetal Medicine, Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

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S A A van den Berg Department of Clinical Chemistry, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
Department of Internal Medicine, Academic Center for Thyroid Diseases, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

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B M N van de Lang-Born Department of Clinical Chemistry, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
Department of Internal Medicine, Academic Center for Thyroid Diseases, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

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T I M Korevaar Department of Internal Medicine, Academic Center for Thyroid Diseases, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

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A Kumar Ansh Labs, Webster, Texas, USA

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B Kalra Ansh Labs, Webster, Texas, USA

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G V Savjani Ansh Labs, Webster, Texas, USA

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E A P Steegers Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
Division of Obstetrics and Fetal Medicine, Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

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Y V Louwers Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

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J S E Laven Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands

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follicle-stimulating hormone (FSH)-induced aromatase activity thereby increasing intra-ovarian androgen concentrations with a consequent decrease in estrogen levels. Finally, AMH decreases the individual sensitivity to FSH of large antral follicles, thereby

Article Type:
Research Article
Collections:
Reproduction
DOI:
https://doi.org/10.1530/EC-22-0320
Volume/Issue:
Volume 12: Issue 3
Open access