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María J Gómora Departamento de Embriología, Facultad de Medicina, Universidad Nacional Autónoma de México, CdMx, Mexico

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Flavia Morales-Vásquez Departamento de Oncología Médica, Instituto Nacional de Cancerología, Secretaría de Salud de México, CdMx, Mexico

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Enrique Pedernera Departamento de Embriología, Facultad de Medicina, Universidad Nacional Autónoma de México, CdMx, Mexico

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Delia Perez-Montiel Departamento de Patología, Instituto Nacional de Cancerología, Secretaría de Salud de México, CdMx, Mexico

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Horacio López-Basave Departamento de Cirugía Oncológica, Instituto Nacional de Cancerología, Secretaría de Salud de México, CdMx, Mexico

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Antonio R Villa División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, CdMx, Mexico

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Azucena Hernández-Martínez Hospital Militar de Especialidades de la Mujer y Neonatología, Secretaría de la Defensa Nacional, CdMx, Mexico

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Esteban Mena Unidad de Apoyo Académico, Secretaría General, Facultad de Medicina, Universidad Nacional Autónoma de México, CdMx, Mexico

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Carmen Mendez Departamento de Embriología, Facultad de Medicina, Universidad Nacional Autónoma de México, CdMx, Mexico

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that can increase the incidence as well as tumor aggressiveness ( 8 , 9 , 10 ). Sexual steroid hormones acting through their receptors regulate signaling pathways related to cell proliferation, epithelial–mesenchymal transition, apoptosis, cell

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Sonja Kunz Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Xiao Wang Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Uta Ferrari Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Michael Drey Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Marily Theodoropoulou Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Katharina Schilbach Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Martin Reincke Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Margit Heier Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
KORA Study Centre, University Hospital of Augsburg, Augsburg, Augsburg, Germany

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Annette Peters Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
German Centre for Cardiovascular Research (DZHK), Partner site Munich Heart Alliance, Munich, Germany

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Wolfgang Koenig German Centre for Cardiovascular Research (DZHK), Partner site Munich Heart Alliance, Munich, Germany
German Heart Centre Munich, Technical University of Munich, Munich, Germany
Institute of Epidemiology and Medical Biometry, University of Ulm, Ulm, Germany

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Tanja Zeller Department of General and Interventional Cardiology, University Heart Center Hamburg, Hamburg, Germany
German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany

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Barbara Thorand Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany

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Martin Bidlingmaier Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany

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Introduction Steroid hormones are signaling molecules involved in regulation of electrolyte concentrations, blood pressure, reproductive functions, and metabolism ( 1 ). A lack or an excess of steroids results from enzyme defects, adenomas, or

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Jana Ernst Department of Anatomy and Cell Biology, Faculty of Medicine, Martin Luther University Halle-Wittenberg, Grosse Steinstrasse, Halle (Saale), Germany

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Katharina Gert Department of Anatomy and Cell Biology, Faculty of Medicine, Martin Luther University Halle-Wittenberg, Grosse Steinstrasse, Halle (Saale), Germany

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Frank Bernhard Kraus Central Laboratory, University Hospital Halle (Saale), Ernst-Grube-Strasse, Halle (Saale), Germany

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Ulrike Elisabeth Rolle-Kampczyk Department of Molecular Systems Biology, Helmholtz Centre for Environmental Research Leipzig, Leipzig, Germany

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Martin Wabitsch Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany

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Faramarz Dehghani Department of Anatomy and Cell Biology, Faculty of Medicine, Martin Luther University Halle-Wittenberg, Grosse Steinstrasse, Halle (Saale), Germany

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Kristina Schaedlich Department of Anatomy and Cell Biology, Faculty of Medicine, Martin Luther University Halle-Wittenberg, Grosse Steinstrasse, Halle (Saale), Germany

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an enzyme machinery enabling them for the de novo synthesis of steroid hormones from cholesterol ( 8 ). Androgenic steroids exhibit a positive gradient from blood to adipose tissue with the precursor androstenedione and dehydroepiandrosterone as

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T P Parikh Program in Reproductive and Adult Endocrinology, National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, Maryland, USA

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B Stolze Department of Laboratory Medicine, Clinical Center, NIH, Bethesda, Maryland, USA

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Y Ozarda Department of Medical Biochemistry, Faculty of Medicine, Uludag University, Bursa, Turkey

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J Jonklaas Division of Endocrinology and Metabolism, Department of Medicine, Georgetown University, Washington, District of Columbia, USA

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K Welsh Department of Laboratory Medicine, Clinical Center, NIH, Bethesda, Maryland, USA

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L Masika Department of Laboratory Medicine and Pathology/National Health Laboratory Service Walter Sisulu University, Mthatha, South Africa

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M Hill Program in Reproductive and Adult Endocrinology, National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, Maryland, USA

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A DeCherney Program in Reproductive and Adult Endocrinology, National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, Maryland, USA

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S J Soldin Department of Laboratory Medicine, Clinical Center, NIH, Bethesda, Maryland, USA
Division of Endocrinology and Metabolism, Department of Medicine, Georgetown University, Washington, District of Columbia, USA

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Introduction Diurnal variations in the serum concentration of steroid hormones and their metabolism, as assessed by urinary excretion, have long been known for cortisol and testosterone ( 1 , 2 , 3 ). Less information exists for the other up

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Fiona Broughton Pipkin Department of Obstetrics and Gynaecology, Department of Nephrology, Leicester Royal Infirmary, School of Medicine, University of Nottingham, Nottingham, NG5 1PB, UK

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Hiten D Mistry Department of Obstetrics and Gynaecology, Department of Nephrology, Leicester Royal Infirmary, School of Medicine, University of Nottingham, Nottingham, NG5 1PB, UK

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Chandrima Roy Department of Obstetrics and Gynaecology, Department of Nephrology, Leicester Royal Infirmary, School of Medicine, University of Nottingham, Nottingham, NG5 1PB, UK

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Bernhard Dick Department of Obstetrics and Gynaecology, Department of Nephrology, Leicester Royal Infirmary, School of Medicine, University of Nottingham, Nottingham, NG5 1PB, UK

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Jason Waugh Department of Obstetrics and Gynaecology, Department of Nephrology, Leicester Royal Infirmary, School of Medicine, University of Nottingham, Nottingham, NG5 1PB, UK

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Rebecca Chikhi Department of Obstetrics and Gynaecology, Department of Nephrology, Leicester Royal Infirmary, School of Medicine, University of Nottingham, Nottingham, NG5 1PB, UK

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Lesia O Kurlak Department of Obstetrics and Gynaecology, Department of Nephrology, Leicester Royal Infirmary, School of Medicine, University of Nottingham, Nottingham, NG5 1PB, UK

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Markus G Mohaupt Department of Obstetrics and Gynaecology, Department of Nephrology, Leicester Royal Infirmary, School of Medicine, University of Nottingham, Nottingham, NG5 1PB, UK

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feedback control of glucocorticoid maintenance and an association with metabolic syndrome (10, 11) . Little is known about steroid hormone availability and metabolism during the early postpartum period in infants. Fetal exposure to maternal cortisol is

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Johanna Christina Penell Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
Department of Medical Sciences, Occupational and Environmental Medicine, Uppsala University, Uppsala, Sweden

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Mark M Kushnir Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah, USA
ARUP Institute for Clinical and Experimental Pathology, Salt Lake City, Utah, USA

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Lars Lind Department of Medical Sciences, Cardiovascular Epidemiology, Uppsala University, Uppsala, Sweden

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Jonatan Bergquist Department of Chemistry – BMC, Analytical Chemistry, Uppsala University, Uppsala, Sweden

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Jonas Bergquist Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah, USA
Department of Chemistry – BMC, Analytical Chemistry, Uppsala University, Uppsala, Sweden

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P Monica Lind Department of Medical Sciences, Occupational and Environmental Medicine, Uppsala University, Uppsala, Sweden

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Tord Naessen Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden

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radioimmunoassay and mass spectrometry . Steroids 2002 67 151 – 158 . ( https://doi.org/10.1016/s0039-128x(01)00147-7 ) 2 Paller CJ Shiels MS Rohrmann S Basaria S Rifai N Nelson W Platz EA Dobs A Relationship of sex steroid hormones with

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Thomas Reinehr Department of Pediatric Endocrinology, Diabetes, and Nutrition Medicine, Vestische Hospital for Children and Adolescents, University of Witten/Herdecke, Datteln, Germany

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Alexandra Kulle Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics, University Hospital of Schleswig – Holstein, UKSH, Campus Kiel/Christian Albrechts University of Kiel, CAU, Kiel, Germany

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Juliane Rothermel Department of Pediatric Endocrinology, Diabetes, and Nutrition Medicine, Vestische Hospital for Children and Adolescents, University of Witten/Herdecke, Datteln, Germany

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Caroline Knop-Schmenn Department of Pediatric Endocrinology, Diabetes, and Nutrition Medicine, Vestische Hospital for Children and Adolescents, University of Witten/Herdecke, Datteln, Germany

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Nina Lass Department of Pediatric Endocrinology, Diabetes, and Nutrition Medicine, Vestische Hospital for Children and Adolescents, University of Witten/Herdecke, Datteln, Germany

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Christina Bosse Department of Pediatric Endocrinology, Diabetes, and Nutrition Medicine, Vestische Hospital for Children and Adolescents, University of Witten/Herdecke, Datteln, Germany

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Paul-Martin Holterhus Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics, University Hospital of Schleswig – Holstein, UKSH, Campus Kiel/Christian Albrechts University of Kiel, CAU, Kiel, Germany

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regulation of precursors of androgens and other steroid hormones within the steroid metabolome encompassing glucocorticoids, mineralocorticoids and estrogens is largely unknown in PCOS. Although PCOS has frequently been reported in adolescents, the

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Henrik Ryberg Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden
Sahlgrenska Osteoporosis Centre, Center for Bone and Arthritis Research (CBAR), Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden

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Anna-Karin Norlén Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden
Sahlgrenska Osteoporosis Centre, Center for Bone and Arthritis Research (CBAR), Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden

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Andreas Landin Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden
Sahlgrenska Osteoporosis Centre, Center for Bone and Arthritis Research (CBAR), Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden

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Per Johansson Sahlgrenska Osteoporosis Centre, Center for Bone and Arthritis Research (CBAR), Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden

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Zeinab Salman Sahlgrenska Osteoporosis Centre, Center for Bone and Arthritis Research (CBAR), Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden

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Anders Wallin Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Mölndal, Sweden

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Johan Svensson Sahlgrenska Osteoporosis Centre, Center for Bone and Arthritis Research (CBAR), Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
Department of Endocrinology, Skaraborg Central Hospital, Skövde, Sweden

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Claes Ohlsson Sahlgrenska Osteoporosis Centre, Center for Bone and Arthritis Research (CBAR), Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden

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Introduction Sex steroid hormones are predominantly produced from cholesterol by the gonads and the adrenal glands. Then, the sex steroids are distributed to target tissues through the circulation. In addition, many tissues and organs

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Sandra R Dahl Hormone Laboratory, Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway

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Ingrid Nermoen Institute of Clinical Medicine, University of Oslo, Oslo, Norway
Division of Medicine, Akershus University Hospital, Lørenskog, Norway

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Ingeborg Brønstad National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen, Norway
Department of Clinical Medicine, University of Bergen, Bergen, Norway

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

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Kristian Løvås Department of Clinical Science, University of Bergen, Bergen, Norway
K.G. Jebsen-Center for Autoimmune Diseases, University of Bergen, Bergen, Norway
Department of Medicine, Haukeland University Hospital, Bergen, Norway

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Per M Thorsby Hormone Laboratory, Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway

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(LC–MS/MS) has emerged as the method of choice for determination of steroid hormones. Advantages include its superior specificity compared to immunoassays, the possibility for multiplexing and low sample volume ( 10 ). This enables simultaneous

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Enrique Pedernera Universidad Nacional Autónoma de México, Facultad de Medicina, Departamento de Embriología y Genética, Ciudad de México, México

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Flavia Morales-Vásquez Instituto Nacional de Cancerología, Ciudad de México, México

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María J Gómora Universidad Nacional Autónoma de México, Facultad de Medicina, Departamento de Embriología y Genética, Ciudad de México, México

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Miguel A Almaraz Universidad Nacional Autónoma de México, Facultad de Medicina, Departamento de Embriología y Genética, Ciudad de México, México

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Esteban Mena Universidad Nacional Autónoma de México, Facultad de Medicina, Secretaría General, Ciudad de México, México
Universidad La Salle, Posgrado de la Facultad de Ciencias Químicas, Ciudad de México, México

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Delia Pérez-Montiel Instituto Nacional de Cancerología, Ciudad de México, México

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Elizabeth Rendon Hospital Militar de Especialidades de la Mujer y Neonatología. Ciudad de México, México

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Horacio López-Basave Instituto Nacional de Cancerología, Ciudad de México, México

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Juan Maldonado-Cubas Universidad La Salle, Posgrado de la Facultad de Ciencias Químicas, Ciudad de México, México

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Carmen Méndez Universidad Nacional Autónoma de México, Facultad de Medicina, Departamento de Embriología y Genética, Ciudad de México, México

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female reproductive events. Further, ovarian tumors are considered sensitive to sex steroid hormones, as they are mediated by specific androgen, estrogen, and progesterone receptors ( 3 ). Additionally, the steroid hormone receptor shows a particular

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