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conditions such as brain tumors, trauma, infection or irradiation, and congenital forms of CPHD with a presumed genetic background ( 1 ). Pathogenic variants in more than 70 genes expressed during the prenatal development of the head, hypothalamus, and
Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark
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Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
Department of Endocrinology and Nephrology, Nordsjællands University Hospital, Hillerød, Denmark
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Center for Neonatal Screening, Department of Congenital Disorders, Statens Serum Institute, Copenhagen, Denmark
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Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
Center for Clinical Metabolic Research, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark
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Steno Diabetes Center Copenhagen, Gentofte, Denmark
Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
Center for Clinical Metabolic Research, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark
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Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Objective:
Parathyroid hormone (PTH) is a key hormone in regulation of calcium homeostasis and its secretion is regulated by calcium. Secretion of PTH is attenuated during intake of nutrients, but the underlying mechanism(s) are unknown. We hypothesized that insulin acts as an acute regulator of PTH secretion.
Methods:
Intact PTH was measured in plasma from patients with T1D and matched healthy individuals during 4-h oral glucose tolerance tests (OGTT) and isoglycemic i.v. glucose infusions on 2 separate days. In addition, expression of insulin receptors on surgical specimens of parathyroid glands was assessed by immunochemistry (IHC) and quantitative PCR (qPCR).
Results:
The inhibition of PTH secretion was more pronounced in healthy individuals compared to patients with T1D during an OGTT (decrementalAUC0–240min: −5256 ± 3954 min × ng/L and −2408 ± 1435 min × ng/L, P = 0.030). Insulin levels correlated significantly and inversely with PTH levels, also after adjusting for levels of several gut hormones and BMI (P = 0.002). Expression of insulin receptors in human parathyroid glands was detected by both IHC and qPCR.
Conclusion:
Our study suggests that insulin may act as an acute regulator of PTH secretion in humans.
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and exercise echocardiography that showed no ischemia). The lack of subclinical atherosclerosis corroborates our previous finding that congenital IGHD is not a cause of CV mortality (17) . The calcium scores of IGHD individuals expressed as percentage
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Division of Medicine, Akershus University Hospital, Lørenskog, Norway
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Department of Clinical Medicine, University of Bergen, Bergen, Norway
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K.G. Jebsen-Center for Autoimmune Diseases, University of Bergen, Bergen, Norway
Department of Medicine, Haukeland University Hospital, Bergen, Norway
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K.G. Jebsen-Center for Autoimmune Diseases, University of Bergen, Bergen, Norway
Department of Medicine, Haukeland University Hospital, Bergen, Norway
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Introduction Congenital adrenal hyperplasia (CAH) is a group of autosomal recessive disorders with impaired biosynthesis of adrenal glucocorticosteroids and defects in cortisol biosynthesis. More than 95% of cases are caused by mutations in
Laboratory Medicine, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud university medical center, Nijmegen, The Netherlands
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Introduction Congenital adrenal hyperplasia (CAH) is a genetic disorder in which adrenocortical steroid synthesis is impaired due to a deficiency in particular steroidogenic enzymes, most often steroid 21-hydroxylase (CYP21A2). A wide range of
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Institute of Epidemiology and Medical Biometry, ZIBMT, Ulm University, Ulm, Germany
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Institute of Epidemiology and Medical Biometry, ZIBMT, Ulm University, Ulm, Germany
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in adipose tissue development or function (lipodystrophy (LD)) or primary disorders of insulin signaling ( 1 , 2 , 3 ). LDs are rare heterogeneous disorders characterized by selective loss of body fat and can be divided into congenital and
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Introduction In states of adrenal insufficiency (AI), such as primary adrenal insufficiency (PAI) and congenital adrenal hyperplasia (CAH), glucocorticoids (GCs) are given in low doses as hormone replacement therapy. However, the daily intake
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Université Pierre et Marie Curie, Sorbonne Université, Paris, France
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INSERM UMR_S933, Paris, France
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Université Pierre et Marie Curie, Sorbonne Université, Paris, France
INSERM UMR_S933, Paris, France
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Introduction Human 3beta-hydroxysteroid dehydrogenase deficiency (3b-HSD) is a very rare form of congenital adrenal hyperplasia resulting from HSD3B2 gene mutations (ORPHA90791) ( 1 ). Sixty-one unrelated families have been published since
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Université Paris Cité, Faculté de Santé, UFR de Médecine, Paris, France
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Université Paris Cité, Faculté de Santé, UFR de Médecine, Paris, France
Inserm UMR1185, Le Kremlin Bicetre, Paris, France
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Inserm UMR1185, Le Kremlin Bicetre, Paris, France
Paris-Saclay University, Paris, France
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Introduction Congenital hypogonadotropic hypogonadism (CHH), a rare genetic condition of unknown prevalence (approximately 1/5000), can be diagnosed shortly after birth in boys who present with micropenis and/or unilateral or bilateral
Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
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Department of Paediatric Endocrinology, Astrid Lindgren Children Hospital, Karolinska University Hospital, Stockholm, Sweden
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Department of Pediatric Endocrinology, Hôpital Bicêtre, Assistance Publique-Hôpitaux de Paris, Le Kremlin Bicêtre, France
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; and XX-DSD characterized by androgen excess such as congenital adrenal hyperplasia (CAH) ( 1 ). Due to the wide range of pathophysiology and presentation, patients with DSD may need a large variety of treatments such as genital surgery, sex hormone