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Heng Yeh Department of Emergency Medicine, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
College of Medicine, Chang Gung University, Taoyuan, Taiwan

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Hsuan Yeh College of Medicine, Chang Gung University, Taoyuan, Taiwan
Department of Nephrology, Clinical Poison Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan

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Chun-Cheng Chiang College of Medicine, Chang Gung University, Taoyuan, Taiwan
Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan

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Ju-Ching Yen College of Medicine, China Medical University, Taichung, Taiwan

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I-Kuan Wang College of Medicine, China Medical University, Taichung, Taiwan
Department of Nephrology, China Medical University Hospital, Taichung, Taiwan

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Shou-Hsuan Liu College of Medicine, Chang Gung University, Taoyuan, Taiwan
Department of Nephrology, Clinical Poison Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan

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Cheng-Chia Lee College of Medicine, Chang Gung University, Taoyuan, Taiwan
Department of Nephrology, Clinical Poison Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan

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Cheng-Hao Weng College of Medicine, Chang Gung University, Taoyuan, Taiwan
Department of Nephrology, Clinical Poison Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan

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Wen-Hung Huang College of Medicine, Chang Gung University, Taoyuan, Taiwan
Department of Nephrology, Clinical Poison Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan

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Ching-Wei Hsu College of Medicine, Chang Gung University, Taoyuan, Taiwan
Department of Nephrology, Clinical Poison Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan

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Tzung-Hai Yen College of Medicine, Chang Gung University, Taoyuan, Taiwan
Department of Nephrology, Clinical Poison Center, Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan

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optimizing serum calcium and phosphorus levels with low-phosphorus diet along with medications including phosphate binders, vitamin D derivatives, and calcimimetics ( 4 ), while patients nonresponsive to maximal medical treatments are considered as refractory

Article Type:
Research Article
Collections:
Bone and Mineral Metabolism
DOI:
https://doi.org/10.1530/EC-23-0107
Volume/Issue:
Volume 12: Issue 10
Open access
Marie Reeberg Sass Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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Nicolai Jacob Wewer Albrechtsen Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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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Jens Pedersen Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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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Kristine Juul Hare Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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Nis Borbye-Lorenzen Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
Center for Neonatal Screening, Department of Congenital Disorders, Statens Serum Institute, Copenhagen, Denmark

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Katalin Kiss Department of Pathology, Rigshospitalet, Copenhagen, Denmark

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Tina Vilsbøll 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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Filip Krag Knop Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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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Steen Seier Poulsen Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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Niklas Rye Jørgensen Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark
Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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Jens Juul Holst Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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Cathrine Ørskov Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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Bolette Hartmann Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

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level during hyperinsulinemic conditions could be due to elevated calcium levels ( 19 ). Several other studies, however, showed decreases in PTH during hyperglycemia/hyperinsulinemia that were independent of serum ionized calcium and total plasma calcium

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-20-0092
Volume/Issue:
Volume 9: Issue 7
Open access
Glenville Jones Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, Ontario, Canada

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steroidal substance required by all vertebrates including humans to maintain blood calcium and phosphate within a narrow normal range and thereby support a healthy skeleton, muscle contraction, immune function and optimal cellular functions in many locations

Article Type:
Review Article
Collections:
Bone and Mineral Metabolism
DOI:
https://doi.org/10.1530/EC-21-0594
Volume/Issue:
Volume 11: Issue 4
Open access
Qian Wang Department of Thyroid and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China

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Jiacheng Wang Department of Thyroid and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China

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Yunhui Xin Department of Thyroid and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China

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Ziyang He Department of Thyroid and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China

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Xiang Zhou Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China

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Xing Liu Department of Thyroid and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China

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Teng Zhao Department of Thyroid and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China

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Lihan He Department of Thyroid and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China

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Hong Shen Department of Thyroid and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China

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Mulan Jin Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China

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Bojun Wei Department of Thyroid and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China

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higher levels of serum calcium, PTH, and larger tumor size than patients with PA. However, some PC cases had normal serum calcium or PTH levels. It is also difficult to identify benign or malignant parathyroid tumors by contrast-enhanced CT scan, cervical

Article Type:
Research Article
Collections:
Bone and Mineral Metabolism
DOI:
https://doi.org/10.1530/EC-21-0605
Volume/Issue:
Volume 11: Issue 2
Open access
Katherine U Gaynor Academic Endocrine Unit, Radcliffe Department of Medicine, University of Oxford, Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Oxford, UK

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Irina V Grigorieva Academic Endocrine Unit, Radcliffe Department of Medicine, University of Oxford, Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Oxford, UK

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Samantha M Mirczuk Academic Endocrine Unit, Radcliffe Department of Medicine, University of Oxford, Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Oxford, UK

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Sian E Piret Academic Endocrine Unit, Radcliffe Department of Medicine, University of Oxford, Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Oxford, UK

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Kreepa G Kooblall Academic Endocrine Unit, Radcliffe Department of Medicine, University of Oxford, Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Oxford, UK

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Mark Stevenson Academic Endocrine Unit, Radcliffe Department of Medicine, University of Oxford, Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Oxford, UK

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Karine Rizzoti The Francis Crick Institute, London, UK

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Michael R Bowl Academic Endocrine Unit, Radcliffe Department of Medicine, University of Oxford, Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Oxford, UK

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M Andrew Nesbit Academic Endocrine Unit, Radcliffe Department of Medicine, University of Oxford, Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Oxford, UK

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Paul T Christie Academic Endocrine Unit, Radcliffe Department of Medicine, University of Oxford, Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Oxford, UK

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William D Fraser Norwich Medical School, Faculty of Medicine and Health Sciences, University of East Anglia, Norwich, UK

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Tertius Hough MRC Mammalian Genetics Unit, MRC Harwell Institute, Harwell Science and Innovation Campus, Oxfordshire, UK

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Michael P Whyte Washington University in St Louis School of Medicine, Center for Metabolic Bone Disease and Molecular Research, St Louis, Missouri, USA

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Robin Lovell-Badge The Francis Crick Institute, London, UK

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Rajesh V Thakker Academic Endocrine Unit, Radcliffe Department of Medicine, University of Oxford, Oxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Oxford, UK

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urinary calcium excretion ( 1 ). Genetic abnormalities causing HPT may lead to complex congenital syndromes or to an isolated endocrinopathy, for which autosomal dominant, autosomal recessive and X-linked modes of inheritance have been described (OMIM

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-19-0478
Volume/Issue:
Volume 9: Issue 2
Open access
Stan Ursem Department of Clinical Chemistry, Amsterdam Gastroenterology & Metabolism, Amsterdam UMC, Vrije Universiteit Amsterdam, Endocrine Laboratory, Amsterdam, Netherlands

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Vito Francic Division of Endocrinology and Diabetology, Department of Internal Medicine, Endocrinology Lab Platform, Medical University of Graz, Graz, Austria

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Martin Keppel University Institute for Medical and Chemical Laboratory Diagnostics, Paracelsus Medical University, Salzburg, Austria

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Verena Schwetz Division of Endocrinology and Diabetology, Department of Internal Medicine, Endocrinology Lab Platform, Medical University of Graz, Graz, Austria

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Christian Trummer Division of Endocrinology and Diabetology, Department of Internal Medicine, Endocrinology Lab Platform, Medical University of Graz, Graz, Austria

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Marlene Pandis Division of Endocrinology and Diabetology, Department of Internal Medicine, Endocrinology Lab Platform, Medical University of Graz, Graz, Austria

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Felix Aberer Division of Endocrinology and Diabetology, Department of Internal Medicine, Endocrinology Lab Platform, Medical University of Graz, Graz, Austria

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Martin R Grübler Division of Endocrinology and Diabetology, Department of Internal Medicine, Endocrinology Lab Platform, Medical University of Graz, Graz, Austria

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Nicolas D Verheyen Division of Cardiology, Department of Internal Medicine, Medical University of Graz, Graz, Austria

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Winfried März Synlab Academy, Synlab Holding Germany GmbH, München, Germany

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Andreas Tomaschitz Specialist Clinic of Rehabilitation Bad Gleichenberg, Bad Gleichenberg, Austria

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Stefan Pilz Division of Endocrinology and Diabetology, Department of Internal Medicine, Endocrinology Lab Platform, Medical University of Graz, Graz, Austria

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Barbara Obermayer-Pietsch Division of Endocrinology and Diabetology, Department of Internal Medicine, Endocrinology Lab Platform, Medical University of Graz, Graz, Austria

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Annemieke C Heijboer Department of Clinical Chemistry, Amsterdam Gastroenterology & Metabolism, Amsterdam UMC, Vrije Universiteit Amsterdam, Endocrine Laboratory, Amsterdam, Netherlands
Department of Clinical Chemistry, Amsterdam Gastroenterology & Metabolism, Amsterdam UMC, University of Amsterdam, Endocrine Laboratory, Amsterdam, Netherlands

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Introduction Parathyroid hormone (PTH) plays a critical role in maintaining adequate serum calcium homeostasis. It increases serum calcium by stimulating bone resorption, promoting phosphate excretion, converting vitamin D to its active form

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-19-0097
Volume/Issue:
Volume 8: Issue 5
Open access
Victor Jing-Wei Kang Departments of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan

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Bo-Ching Lee Departments of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan

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Jia-Zheng Huang Departments of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan

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Vin-Cent Wu Departments of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan

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Yen-Hung Lin Departments of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan

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Chin-Chen Chang Departments of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan

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TAIPAI group
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, calcium metabolic disorder, hypercalciuria ( 7 , 8 , 9 , 10 ), and acidic urine ( 11 ) and can promote the development of kidney stone disease. Clinically, patients with PA are reported to have a higher incidence of urolithiasis and larger kidney stones

Article Type:
Research Article
Collections:
Adrenal
DOI:
https://doi.org/10.1530/EC-23-0056
Volume/Issue:
Volume 12: Issue 9
Open access
Julia Herteux Medical University of Graz, Auenbruggerplatz, Graz, Austria

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Simon Johannes Geiger Medical University of Graz, Auenbruggerplatz, Graz, Austria

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Christina Starchl Medical University of Graz, Auenbruggerplatz, Graz, Austria

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Johanna Windisch Medical University of Graz, Auenbruggerplatz, Graz, Austria

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Theresa Lerchl Medical University of Graz, Auenbruggerplatz, Graz, Austria

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Adelina Tmava-Berisha Medical University of Graz, Auenbruggerplatz, Graz, Austria

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Gerit Wünsch Medical University of Graz, Auenbruggerplatz, Graz, Austria

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Kathrin Eller Medical University of Graz, Auenbruggerplatz, Graz, Austria

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Astrid Fahrleitner-Pammer Medical University of Graz, Auenbruggerplatz, Graz, Austria

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Karin Amrein Medical University of Graz, Auenbruggerplatz, Graz, Austria

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patients with chronic HP. Furthermore, we attempted to differentiate between HP-related causes, comorbidities and other causes. Lastly, we aimed to assess the awareness of hospital staff by documenting all diagnoses and orders of calcium tests

Article Type:
Research Article
Collections:
Bone and Mineral Metabolism
DOI:
https://doi.org/10.1530/EC-22-0533
Volume/Issue:
Volume 12: Issue 5
Open access
Wolfgang Högler Department of Paediatrics and Adolescent Medicine, Johannes Kepler University Linz, Linz, Austria
Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK

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Agnès Linglart AP-HP, Hôpital Bicêtre Paris Saclay, service d’endocrinologie et diabète de l’enfant, DMU 3 SEA, centre de référence des maladies rares du métabolisme du calcium et du phosphate, filière OSCAR; Université de Paris-Saclay INSERM U1185, Hôpital Bicêtre, Le Kremlin-Bicêtre, France

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Anna Petryk Alexion, AstraZeneca Rare Disease, Boston, Massachusetts, USA

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Priya S Kishnani Duke University Medical Center, Durham, North Carolina, USA

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Lothar Seefried University of Würzburg, Würzburg, Germany

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Shona Fang Alexion, AstraZeneca Rare Disease, Boston, Massachusetts, USA

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Cheryl Rockman-Greenberg University of Manitoba, Winnipeg, Manitoba, Canada

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Keiichi Ozono Osaka University, Suita, Osaka, Japan

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Kathryn Dahir Vanderbilt University Medical Center, Nashville, Tennessee, USA

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Gabriel Ángel Martos-Moreno Departments of Pediatrics and Pediatric Endocrinology Hospital Infantil Universitario Niño Jesús, IIS La Princesa, Universidad Autónoma de Madrid, CIBERobn, ISCIII, Madrid, Spain

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Objective

Hypophosphatasia, an inborn error of metabolism characterized by impaired bone mineralization, can affect growth. This study evaluated relationships between anthropometric parameters (height, weight, and body mass index) and clinical manifestations of hypophosphatasia in children.

Design

Data from children (aged <18 years) with hypophosphatasia were analyzed from the observational Global Hypophosphatasia Registry.

Methods

Anthropometric parameters were evaluated by age group (<2 years and ≥2 years) at assessment. The frequency of hypophosphatasia manifestations was compared between children with short stature (< percentile) and those with normal stature.

Results

This analysis included 215 children (54.4% girls). Short stature presented in 16.1% of children aged <2 years and 20.4% of those aged ≥2 years at assessment. Among those with available data (n = 62), height was below the target height (mean: −0.66 standard deviations). Substantial worsening of growth (mean delta height z score: −1.45; delta weight z score: −0.68) occurred before 2 years of age, while in those aged ≥2 years, anthropometric trajectories were maintained (delta height z score: 0.08; delta weight z score: 0.13). Broad-ranging hypophosphatasia manifestations (beyond dental) were observed in most children.

Conclusions

Short stature was not a consistent characteristic of children with hypophosphatasia, but growth impairment was observed in those aged <2 years, indicating that hypophosphatasia might affect growth plate activity during infancy. In addition, a broad range of clinical manifestations occurred in those above and below the third percentile for height, suggesting that height alone may not accurately reflect hypophosphatasia disease burden and that weight is less affected than longitudinal growth.

Article Type:
Research Article
Collections:
Paediatric Endocrinology
DOI:
https://doi.org/10.1530/EC-22-0240
Volume/Issue:
Volume 12: Issue 5
Open access
Liubov G Yanevskaya Almazov National Medical Research Centre, St. Petersburg, Russia

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Tatiana Karonova Almazov National Medical Research Centre, St. Petersburg, Russia
First Pavlov State Medical University, St. Petersburg, Russia

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Ilya V Sleptsov Saint-Petersburg State University N.I. Pirogov Clinic of High Medical Technologies, St. Petersburg, Russia

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Marina Evgenevna Boriskova First Pavlov State Medical University, St. Petersburg, Russia

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Aluza Ramilevna Bakhtiyarova Almazov National Medical Research Centre, St. Petersburg, Russia

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Roman A Chernikov Saint-Petersburg State University N.I. Pirogov Clinic of High Medical Technologies, St. Petersburg, Russia

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Karina Aleksandrovna Pogosian Almazov National Medical Research Centre, St. Petersburg, Russia

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Alena Timurovna Andreeva Almazov National Medical Research Centre, St. Petersburg, Russia

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Denis Andreevich Lebedev Almazov National Medical Research Centre, St. Petersburg, Russia

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Elena Nikolaevna Grineva Almazov National Medical Research Centre, St. Petersburg, Russia
First Pavlov State Medical University, St. Petersburg, Russia

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John P Bilezikian College of Physicians and Surgeons, Columbia University, New York, New York, USA

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from being a symptomatic disorder to an asymptomatic one ( 1 ). The reason for this change in presentation among individuals in those countries is the common use of biochemical screening tests that include the serum calcium measurement routinely. As a

Article Type:
Research Article
DOI:
https://doi.org/10.1530/EC-20-0515
Volume/Issue:
Volume 10: Issue 2
Open access