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Louise Færch Department of Cardiology, Department of Growth and Reproduction, Faculty of Health Sciences, Nephrology and Endocrinology H, Hillerød University Hospital, Dyrehavevej 29, DK-3400 Hillerød, Denmark

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Anders Juul Department of Cardiology, Department of Growth and Reproduction, Faculty of Health Sciences, Nephrology and Endocrinology H, Hillerød University Hospital, Dyrehavevej 29, DK-3400 Hillerød, Denmark
Department of Cardiology, Department of Growth and Reproduction, Faculty of Health Sciences, Nephrology and Endocrinology H, Hillerød University Hospital, Dyrehavevej 29, DK-3400 Hillerød, Denmark

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Ulrik Pedersen-Bjergaard Department of Cardiology, Department of Growth and Reproduction, Faculty of Health Sciences, Nephrology and Endocrinology H, Hillerød University Hospital, Dyrehavevej 29, DK-3400 Hillerød, Denmark

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Birger Thorsteinsson Department of Cardiology, Department of Growth and Reproduction, Faculty of Health Sciences, Nephrology and Endocrinology H, Hillerød University Hospital, Dyrehavevej 29, DK-3400 Hillerød, Denmark
Department of Cardiology, Department of Growth and Reproduction, Faculty of Health Sciences, Nephrology and Endocrinology H, Hillerød University Hospital, Dyrehavevej 29, DK-3400 Hillerød, Denmark

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, normal GH secretion is important to avoid progression of hypoglycemic episodes into severe hypoglycemia. GH is reflected by insulin-like growth factor 1 (IGF1), which is used to evaluate the GH axis, because GH has great diurnal variation. Total IGF1 has

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K L Gatford School of Paediatrics and Reproductive Health, Robinson Research Institute, University of Adelaide, Adelaide, South Australia 5005, Australia

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G K Heinemann School of Paediatrics and Reproductive Health, Robinson Research Institute, University of Adelaide, Adelaide, South Australia 5005, Australia

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S D Thompson School of Paediatrics and Reproductive Health, Robinson Research Institute, University of Adelaide, Adelaide, South Australia 5005, Australia

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J V Zhang School of Paediatrics and Reproductive Health, Robinson Research Institute, University of Adelaide, Adelaide, South Australia 5005, Australia

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S Buckberry School of Paediatrics and Reproductive Health, Robinson Research Institute, University of Adelaide, Adelaide, South Australia 5005, Australia

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J A Owens School of Paediatrics and Reproductive Health, Robinson Research Institute, University of Adelaide, Adelaide, South Australia 5005, Australia

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G A Dekker School of Paediatrics and Reproductive Health, Robinson Research Institute, University of Adelaide, Adelaide, South Australia 5005, Australia

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C T Roberts School of Paediatrics and Reproductive Health, Robinson Research Institute, University of Adelaide, Adelaide, South Australia 5005, Australia

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on behalf of the SCOPE Consortium School of Paediatrics and Reproductive Health, Robinson Research Institute, University of Adelaide, Adelaide, South Australia 5005, Australia

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Introduction The insulin-like growth factors (IGFs), IGF1 and IGF2, are important regulators of placental and foetal development, as well as postnatal growth and metabolism. In humans, circulating IGF1 peaks in adolescence and then falls with age

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Doron Weinstein
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Rive Sarfstein
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Zvi Laron Department of Human Molecular Genetics and Biochemistry, Endocrinology and Diabetes Research Unit, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel

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Haim Werner
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, and experimental evidence suggests an association between IGF system components and PCa development (1) . In particular, a close functional connection has been identified between the IGF1 receptor (IGF1R), a transmembrane heterotetramer primarily

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Rossella Cannarella Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy

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Andrea Crafa Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy

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Sandro La Vignera Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy

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Rosita A Condorelli Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy

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Aldo E Calogero Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy

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Introduction The acromegaly levels of insulin-like growth factor 1 (IGF1) that occur in healthy children in pubertal age have led to the speculation that this hormone may stimulate the function of the hypothalamus–pituitary–testicular (HPT

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Elvira C Arellanes-Licea Neurobiología Celular y Molecular, Instituto de Neurobiología, Campus Juriquilla, Universidad Nacional Autónoma de México, Querétaro, México

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José Ávila-Mendoza Neurobiología Celular y Molecular, Instituto de Neurobiología, Campus Juriquilla, Universidad Nacional Autónoma de México, Querétaro, México

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Elizabeth C Ramírez-Martínez Neurobiología Celular y Molecular, Instituto de Neurobiología, Campus Juriquilla, Universidad Nacional Autónoma de México, Querétaro, México

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Eugenia Ramos Neurobiología Celular y Molecular, Instituto de Neurobiología, Campus Juriquilla, Universidad Nacional Autónoma de México, Querétaro, México

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Nancy Uribe-González Neurobiología Celular y Molecular, Instituto de Neurobiología, Campus Juriquilla, Universidad Nacional Autónoma de México, Querétaro, México

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Carlos Arámburo Neurobiología Celular y Molecular, Instituto de Neurobiología, Campus Juriquilla, Universidad Nacional Autónoma de México, Querétaro, México

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Teresa Morales Neurobiología Celular y Molecular, Instituto de Neurobiología, Campus Juriquilla, Universidad Nacional Autónoma de México, Querétaro, México

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Maricela Luna Neurobiología Celular y Molecular, Instituto de Neurobiología, Campus Juriquilla, Universidad Nacional Autónoma de México, Querétaro, México

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actions can take place by binding of GH to its specific receptor (GHR), which is present in different regions of the CNS ( 24 , 25 ). GH binding can have a direct effect on the target cell ( 26 ) or can be mediated by the induction of IGF1 synthesis ( 27

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Katherine A Bolton Centre for Bioinformatics, Biomarker Discovery and Information-Based Medicine, Hunter Medical Research Institute, Newcastle, New South Wales, Australia
Priority Research Centre for Cancer, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Newcastle, New South Wales, Australia

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Kelly A Avery-Kiejda Centre for Bioinformatics, Biomarker Discovery and Information-Based Medicine, Hunter Medical Research Institute, Newcastle, New South Wales, Australia
Priority Research Centre for Cancer, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Newcastle, New South Wales, Australia

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Elizabeth G Holliday Centre for Clinical Epidemiology and Biostatistics, School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Newcastle, New South Wales, Australia
Clinical Research Design, IT and Statistical Support Unit, Hunter Medical Research Institute, Newcastle, New South Wales, Australia

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John Attia Centre for Clinical Epidemiology and Biostatistics, School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Newcastle, New South Wales, Australia
Clinical Research Design, IT and Statistical Support Unit, Hunter Medical Research Institute, Newcastle, New South Wales, Australia

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Nikola A Bowden Centre for Bioinformatics, Biomarker Discovery and Information-Based Medicine, Hunter Medical Research Institute, Newcastle, New South Wales, Australia
Priority Research Centre for Cancer, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Newcastle, New South Wales, Australia

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Rodney J Scott Centre for Bioinformatics, Biomarker Discovery and Information-Based Medicine, Hunter Medical Research Institute, Newcastle, New South Wales, Australia
Priority Research Centre for Cancer, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Newcastle, New South Wales, Australia
Molecular Medicine, Pathology North, John Hunter Hospital, Newcastle, New South Wales, Australia
Discipline of Medical Genetics, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, University Drive, Newcastle, New South Wales, Australia

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(IGF1) is a peptide hormone with important regulatory roles in cell growth, differentiation and apoptosis ( 15 , 16 ), and is also required for normal breast development ( 17 ). Epidemiological studies have shown that high circulating levels of IGF1

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Mette Faurholdt Gude Medical/Steno Aarhus Research Laboratory, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark

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Rikke Hjortebjerg Department of Molecular Endocrinology, University of Southern Denmark, Odense, Denmark
Steno Diabetes Centre Odense, Odense University Hospital, Odense, Denmark

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Mette Bjerre Medical/Steno Aarhus Research Laboratory, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark

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Morten Haaning Charles Department of Public Health, Aarhus University, Aarhus, Denmark
Steno Diabetes Centre Aarhus, Aarhus University Hospital, Aarhus, Denmark

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Daniel R Witte Department of Public Health, Aarhus University, Aarhus, Denmark
Steno Diabetes Centre Aarhus, Aarhus University Hospital, Aarhus, Denmark

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Annelli Sandbæk Department of Public Health, Aarhus University, Aarhus, Denmark
Steno Diabetes Centre Aarhus, Aarhus University Hospital, Aarhus, Denmark

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Jan Frystyk Endocrine Research Unit, Department of Endocrinology, Odense University Hospital & Department of Clinical Research, Faculty of Health, University of Southern Denmark, Odense, Denmark

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likely related to its ability to increase insulin-like growth factor-1 (IGF1) action. PAPP-A activates IGF1 through proteolytic cleavage of IGF-binding proteins (IGFBP) -2, -4 and -5, which provides IGFBP fragments with low ligand affinity. By this

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Caiyan Mo Department of Endocrinology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China

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Tao Tong Department of Endocrinology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China

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Ying Guo Department of Endocrinology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China

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Zheng Li Department of Endocrinology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China

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Liyong Zhong Department of Endocrinology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China

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Introduction Growth hormone-secreting pituitary adenoma (GHPA) is due to the overproduction of growth hormone (GH) by pituitary adenomas, which stimulates the liver to produce insulin-like growth factor 1 (IGF-1), and the long

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Julie M Silverstein Division of Endocrinology, Metabolism and Lipid Research, Washington University School of Medicine, 660 South Euclid Avenue, Campus Box 8127, St Louis, Missouri 63110, USA

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associated with acromegaly are a consequence of the chronic overproduction of growth hormone (GH) and insulin-like growth factor 1 (IGF1) (1, 8) . Systemic complications commonly associated with the chronic hypersecretion of GH and IGF1 include visceromegaly

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Alexandra Kiess Department of Pediatric Cardiology, Faculty of Medicine, Heart Center Leipzig, University of Leipzig, Strümpellstraße, Leipzig, Germany
Department of Child and Adolescent Medicine, Section of Pediatric Cardiology, University Hospital Jena, Am Klinikum, Jena, Germany

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Jessica Green Alder Hey Children's NHS Foundation Trust, Pediatric Intensive Care Unit, Eaton Road Liverpool, Great Britain

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Anja Willenberg Institute of Laboratory Medicine, Clinical Chemistry, and Molecular Diagnostics (ILM), University of Leipzig, Liebigstrasse, Leipzig, Germany

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Uta Ceglarek Institute of Laboratory Medicine, Clinical Chemistry, and Molecular Diagnostics (ILM), University of Leipzig, Liebigstrasse, Leipzig, Germany

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Ingo Dähnert Department of Pediatric Cardiology, Faculty of Medicine, Heart Center Leipzig, University of Leipzig, Strümpellstraße, Leipzig, Germany

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Wieland Kiess LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Philipp-Rosenthal-Strasse, Leipzig, Germany
Department of Women and Child Health, Hospital for Children and Adolescents and Center for Pediatric Research (CPL), University of Leipzig, Liebigstrasse, Leipzig, Germany

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Mandy Vogel LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Philipp-Rosenthal-Strasse, Leipzig, Germany
Department of Women and Child Health, Hospital for Children and Adolescents and Center for Pediatric Research (CPL), University of Leipzig, Liebigstrasse, Leipzig, Germany

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-BP1/IGF-1-ratio with NT-proBNP were seen in patients with and without HF ( 4 ); in a cohort of pediatric and adult patients with Fontan physiology, higher BNP was associated with lower IGF-1 Z scores ( 5 ) and in 30 pediatric patients with congenital

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