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S U Jayasinghe
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S J Torres
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C A Nowson
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A J Tilbrook Centre for Physical Activity and Nutrition Research, Livestock and Farming Systems, School of Exercise and Nutrition Sciences, Deakin University, Burwood, Melbourne, Victoria 3125, Australia

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A I Turner
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sequential secretion of corticotrophin-releasing hormone (CRH) and arginine vasopressin (AVP) from the hypothalamus, adrenocorticotrophic hormone (ACTH) from the anterior pituitary gland and glucocorticoids such as cortisol from the adrenal cortex (14, 15

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Lisa Arnetz Departments of Endocrinology, Molecular Medicine and Surgery, Metabolism and Diabetes
Departments of Endocrinology, Molecular Medicine and Surgery, Metabolism and Diabetes

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Neda Rajamand Ekberg Departments of Endocrinology, Molecular Medicine and Surgery, Metabolism and Diabetes
Departments of Endocrinology, Molecular Medicine and Surgery, Metabolism and Diabetes

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Kerstin Brismar Departments of Endocrinology, Molecular Medicine and Surgery, Metabolism and Diabetes
Departments of Endocrinology, Molecular Medicine and Surgery, Metabolism and Diabetes

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Michael Alvarsson Departments of Endocrinology, Molecular Medicine and Surgery, Metabolism and Diabetes
Departments of Endocrinology, Molecular Medicine and Surgery, Metabolism and Diabetes

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Introduction Along with progressive β-cell failure and insulin resistance, patients with type 2 diabetes (T2D) display disturbed regulation of cortisol and insulin-like growth factor 1 (IGF1) secretion (1) . Especially regarding the hypothalamus

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Pablo Abellán-Galiana Department of Endocrinology, Hospital General Universitari de Castelló, Castellón, Spain
Department of Medicine, Universidad Cardenal Herrera-CEU, CEU Universities, Castellón, Spain

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Carmen Fajardo-Montañana Department of Endocrinology, Hospital Universitario de la Ribera, Alzira, Spain

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Pedro Riesgo-Suárez Department of Neurosurgery, Hospital Universitario de la Ribera, Alzira, Spain

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Marcelino Pérez-Bermejo Department of Nursing, Universidad Católica de Valencia, Valencia, Spain

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Celia Ríos-Pérez Centro de Salud Tavernes de la Valldigna, Hospital Comarcal Francesc de Borja, Gandía, Spain

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José Gómez-Vela Department of Endocrinology, Hospital Universitario de la Ribera, Alzira, Spain

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biochemical criteria ( 8 ). In this respect, cortisol concentration in the immediate postoperative period has been the most widely used long-term prognostic indicator in most of the published series ( 1 , 4 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ). The

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Eva Novoa Department of Otorhinolaryngology, Clinic of Endocrinology, Head and Neck Surgery

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Marcel Gärtner Department of Otorhinolaryngology, Clinic of Endocrinology, Head and Neck Surgery

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Christoph Henzen Department of Otorhinolaryngology, Clinic of Endocrinology, Head and Neck Surgery

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, a broad range of therapeutic modalities are being explored with different doses and applications of glucocorticoids that usually by far exceed the physiological daily cortisol production (8) , and therefore carry the risk of systemic side effects. A

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Mardia López-Alarcón Unidad de Investigación Médica en Nutrición, Hospital de Pediatría, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, México, Mexico

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Jessie N Zurita-Cruz Unidad de Investigación Médica en Nutrición, Hospital de Pediatría, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, México, Mexico

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Alonso Torres-Rodríguez Escuela Española de Desarrollo Transpersonal, Madrid, España

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Karla Bedia-Mejía Unidad de Investigación Médica en Nutrición, Hospital de Pediatría, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, México, Mexico

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Manuel Pérez-Güemez Unidad de Investigación Médica en Nutrición, Hospital de Pediatría, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, México, Mexico

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Leonel Jaramillo-Villanueva Departamento de Psiquiatría, Hospital de Pediatría, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, México, Mexico

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Mario E Rendón-Macías Universidad Panamericana, Facultad de Ciencias de la Salud, Escuela de Medicina, México, Mexico

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Jose R Fernández Departments of Nutrition Sciences and Biostatistics, University of Alabama at Birmingham, Birmingham, Alabama, USA

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Patricia Martínez-Maroñas Escuela Española de Desarrollo Transpersonal, Madrid, España

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stress, mindfulness may affect cortisol ( 11 ), which secondarily may affect some hormones involved in appetite regulation such as insulin ( 12 ), leptin and ghrelin ( 13 ). However, the results of these investigations are controversial ( 7 , 8 , 9

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Sophie Howarth Clinical and Translational Research Institute, Newcastle University, Newcastle upon Tyne, UK
Department of Endocrinology, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK

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Luca Giovanelli Department of Endocrinology, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK

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Catherine Napier Department of Endocrinology, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK

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Simon H Pearce Clinical and Translational Research Institute, Newcastle University, Newcastle upon Tyne, UK
Department of Endocrinology, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK

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showed normalisation of her serum electrolytes with a persistently elevated renin (372.8 mIU/L) during fludrocortisone treatment. Following COCP withdrawal, she had a basal cortisol of 344 nmol/L, rising to 452 nmol/L 60 min post-injection of 250 µg

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M von Wolff Division of Gynaecological Endocrinology and Reproductive Medicine, University Women’s Hospital, Bern University Hospital, University of Bern, Bern, Switzerland

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C T Nakas University Institute of Clinical Chemistry, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
Laboratory of Biometry, University of Thessaly, Volos, Greece

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M Tobler Division of Gynaecological Endocrinology and Reproductive Medicine, University Women’s Hospital, Bern University Hospital, University of Bern, Bern, Switzerland
Division of Pneumology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland

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T M Merz Division of Intensive Care Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland

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M P Hilty Intensive Care Unit, University Hospital, Zurich, Switzerland

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J D Veldhuis Endocrine Research Unit, Department of Internal Medicine, Mayo School of Graduate Medical Education, Centre for Translational Science Activities, Mayo Clinic, Rochester, New York, USA

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A R Huber Centre for Laboratory Medicine, Cantonal Hospital, Aarau, Switzerland

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J Pichler Hefti Division of Pneumology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland

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−80°C thereafter. Cortisol, prolactin, thyroid-stimulating hormone (TSH), free tetraiodothyronine (fT4), free triiodothyronine (fT3), follicle-stimulating hormone (FSH), luteinizing hormone (LH) and total testosterone (testosterone) were analysed

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Filippo Ceccato Endocrinology Unit, Department of Medicine DIMED, University-Hospital of Padova, Padova, Italy

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Elisa Selmin Endocrinology Unit, Department of Medicine DIMED, University-Hospital of Padova, Padova, Italy

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Chiara Sabbadin Endocrinology Unit, Department of Medicine DIMED, University-Hospital of Padova, Padova, Italy

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Miriam Dalla Costa Endocrinology Unit, Department of Medicine DIMED, University-Hospital of Padova, Padova, Italy

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Giorgia Antonelli Laboratory Medicine, Department of Medicine DIMED, University-Hospital of Padova, Padova, Italy

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Mario Plebani Laboratory Medicine, Department of Medicine DIMED, University-Hospital of Padova, Padova, Italy

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Mattia Barbot Endocrinology Unit, Department of Medicine DIMED, University-Hospital of Padova, Padova, Italy

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Corrado Betterle Endocrinology Unit, Department of Medicine DIMED, University-Hospital of Padova, Padova, Italy

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Marco Boscaro Endocrinology Unit, Department of Medicine DIMED, University-Hospital of Padova, Padova, Italy

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Carla Scaroni Endocrinology Unit, Department of Medicine DIMED, University-Hospital of Padova, Padova, Italy

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Introduction Adrenal insufficiency (AI) is a rare endocrine disorder characterized by insufficient cortisol production, due to impaired ACTH or cortisol secretion, depicting secondary or primary AI (respectively SAI and PAI) ( 1 , 2 , 3

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Grethe Å Ueland Department of Clinical Science, University of Bergen, Bergen, Norway
Department of Medicine, Haukeland University Hospital, Bergen, Norway

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Thea Grinde Department of Clinical Science, University of Bergen, Bergen, Norway

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

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Oskar Kelp Department of Medicine, Akershus University Hospital, Nordbyhagen, Norway

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Kristian Løvås Department of Medicine, Haukeland University Hospital, Bergen, Norway
K. G. Jebsen Center for Autoimmune Disorders, University of Bergen, Bergen, Norway

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

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Introduction Autonomous cortisol secretion (ACS) is usually caused by adrenal adenomas or hyperplasia and is frequently diagnosed in patients with adrenal incidentalomas (AI). AI are adrenal masses discovered on imaging undertaken for other

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Kerry V Fanson Wildlife Reproductive Centre, School of Life and Environmental Sciences, School of Agriculture and Food Sciences, Taronga Conservation Society Australia, Dubbo, New South Wales, Australia
Wildlife Reproductive Centre, School of Life and Environmental Sciences, School of Agriculture and Food Sciences, Taronga Conservation Society Australia, Dubbo, New South Wales, Australia

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Tamara Keeley Wildlife Reproductive Centre, School of Life and Environmental Sciences, School of Agriculture and Food Sciences, Taronga Conservation Society Australia, Dubbo, New South Wales, Australia
Wildlife Reproductive Centre, School of Life and Environmental Sciences, School of Agriculture and Food Sciences, Taronga Conservation Society Australia, Dubbo, New South Wales, Australia

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Benjamin G Fanson Wildlife Reproductive Centre, School of Life and Environmental Sciences, School of Agriculture and Food Sciences, Taronga Conservation Society Australia, Dubbo, New South Wales, Australia

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have not found the evidence that mean cortisol levels differ between cyclic and acyclic females (21, 24) . However, this does not rule out the possibility that more fine-scale patterns of cortisol expression are disrupted in non-cycling elephants. Mean

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