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Hormonology Department, Cochin Hospital, Paris, France
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Inserm U1016-CNRS UMR8104, Paris, France
Radiology Department, Cochin Hospital, Paris, France
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Inserm U1016-CNRS UMR8104, Paris, France
Reference Center for Rare Adrenal Diseases, Endocrinology Department, Cochin Hospital, Paris, France
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Inserm U1016-CNRS UMR8104, Paris, France
Reference Center for Rare Adrenal Diseases, Endocrinology Department, Cochin Hospital, Paris, France
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Hormonology Department, Cochin Hospital, Paris, France
INSERM, Physiopathologie et Pharmacotoxicologie Placentaire Humaine : Microbiote Pré & Post natal, Paris, France
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Inserm U1016-CNRS UMR8104, Paris, France
Diabetology Department, Cochin Hospital, Paris, France
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Inserm U1016-CNRS UMR8104, Paris, France
Reference Center for Rare Adrenal Diseases, Endocrinology Department, Cochin Hospital, Paris, France
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Inserm U1016-CNRS UMR8104, Paris, France
Reference Center for Rare Adrenal Diseases, Endocrinology Department, Cochin Hospital, Paris, France
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Hormonology Department, Cochin Hospital, Paris, France
INSERM, Physiopathologie et Pharmacotoxicologie Placentaire Humaine : Microbiote Pré & Post natal, Paris, France
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UR 7537 BioSTM, Paris, France
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Inserm U1016-CNRS UMR8104, Paris, France
Reference Center for Rare Adrenal Diseases, Endocrinology Department, Cochin Hospital, Paris, France
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with tandem mass spectrometry (LC-MS/MS) in the basal state and after ACTH 1-24 stimulation. Materials and methods Patients and samples Patients investigated in the Endocrinology department of Cochin Hospital between 2018 December and 2021
Division of Endocrinology and Metabolism, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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NIHR Health Protection Research Unit on Chemical Radiation Threats and Hazards, Imperial College London, London, UK
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NIHR Health Protection Research Unit on Chemical Radiation Threats and Hazards, Imperial College London, London, UK
National Institute for Health Research (NIHR) Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, UK
Mohn Centre for Children’s Health and Wellbeing, Imperial College London, London, UK
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NIHR Health Protection Research Unit on Chemical Radiation Threats and Hazards, Imperial College London, London, UK
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NIHR Health Protection Research Unit on Chemical Radiation Threats and Hazards, Imperial College London, London, UK
National Institute for Health Research (NIHR) Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, UK
Mohn Centre for Children’s Health and Wellbeing, Imperial College London, London, UK
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hormones as well as precursors and metabolites in the assay matrix leads to a greater chance of cross-reactivity. Liquid chromatography-mass spectrometry (LC-MS/MS) offers higher sensitivity and specificity with greater accuracy for steroid hormone
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specificity ( 4 , 5 , 6 ). Cortisol analyses using liquid chromatography tandem mass spectrometry (LC-MS/MS) have eliminated the problems of cross-reactivity with exogenous steroids and cortisol metabolites often found with immunoassays ( 7 , 8 , 9 , 10
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mass spectrometry (LC-MS/MS) using multiple reaction monitoring in positive mode ( 36 ). The detection limit was 0.11 nmol/L. The intra-assay coefficient of variation was 7.2% at 3.0 nmol/L, and the inter-assay coefficient of variation was 5.8% at 1
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chromatography tandem mass spectrometry (LC–MS/MS) is today’s gold standard for determining serum steroids. We aimed to investigate LC–MS/MS steroid profiles of childhood ALL serum samples, encompassing cortisol and aldosterone as well as their precursors
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Wellcome–MRC Institute of Metabolic Science, University of Cambridge and NIHR Cambridge Biomedical Research Centre, Addenbrooke’s Hospital, Cambridge, UK
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://doi.org/10.1056/NEJMoa2021436 ) 20 Hinchliffe E Carter S Owen LJ Keevil BG . Quantitation of aldosterone in human plasma by ultra high performance liquid chromatography tandem mass spectrometry . Journal of Chromatography: B, Analytical
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–liquid extraction by isotope dilution liquid chromatography-tandem mass spectrometry. Deuterated internal standard (Fludrocortisone D5, Sigma) was added to each sample, QC and calibrator followed by diethylether. Samples were mixed and then placed into an ethanol
Department of Endocrinology, Imperial College Healthcare NHS Trust, London, UK
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Department of Endocrinology, Imperial College Healthcare NHS Trust, London, UK
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Department of Endocrinology, Imperial College Healthcare NHS Trust, London, UK
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Department of Endocrinology, Imperial College Healthcare NHS Trust, London, UK
Department of Clinical Biochemistry, North West London Pathology, London, UK
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Department of Endocrinology, Imperial College Healthcare NHS Trust, London, UK
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Department of Endocrinology, Imperial College Healthcare NHS Trust, London, UK
Department of Clinical Biochemistry, North West London Pathology, London, UK
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mass spectrometry (Waters Quattro Premier Mass Spectrometer). The assay is controlled using custom internal quality controls and is a UKAS-accredited assay. This method has demonstrated intra-assay and inter-assay coefficient variations of 2.7 and 4
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Division of Diabetes, Endocrinology and Metabolism, Imperial College London, London, UK
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Division of Diabetes, Endocrinology and Metabolism, Imperial College London, London, UK
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Division of Diabetes, Endocrinology and Metabolism, Imperial College London, London, UK
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. Salivary cortisone can be reliably measured by liquid chromatography-tandem mass spectrometry (LC-MS/MS) ( 7 ). There is no evidence of 11B-HSD2 activity in collected saliva. Therefore, measurement of salivary cortisone is particularly useful when
Department of Analysis, Universidade Federal do Rio Grande do Sul (UFRGS), School of Pharmacy, Porto Alegre, RS, Brazil
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Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
Department of Pediatrics, Universidade Federal do Rio Grande do Sul (UFRGS), Medical School, Porto Alegre, RS, Brazil
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spectrometry . Clinica Chimica Acta 2010 411 222 – 228 . ( https://doi.org/10.1016/j.cca.2009.11.007 ) 29 Carvalho VM Nakamura OH & Vieira JGH . Simultaneous quantitation of seven endogenous C-21 adrenal steroids by liquid chromatography tandem mass