Search Results - "Dunand, Marielle"

Stabilization of urinary biogenic amines measured in clinical chemistry laboratories by Eugster, Philippe J., Centeno, Catherine, Dunand, Marielle, Seghezzi, Caroline, Grouzmann, Eric

“…•We studied preanalytical stability of 9 currently measured biogenic amines in urine.•Stabilization by sodium citrate and HCl were compared with native…”
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High-Throughput and Sensitive Quantitation of Plasma Catecholamines by Ultraperformance Liquid Chromatography–Tandem Mass Spectrometry Using a Solid Phase Microwell Extraction Plate by Dunand, Marielle, Gubian, Danilo, Stauffer, Maxime, Abid, Karim, Grouzmann, Eric

“…Plasma catecholamines provide a reliable biomarker of sympathetic activity. The low circulating concentrations of catecholamines and analytical interferences…”
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Quantification of serotonin and eight of its metabolites in plasma of healthy volunteers by mass spectrometry by Eugster, Philippe J., Dunand, Marielle, Grund, Baptiste, Ivanyuk, Anton, Fogarasi Szabo, Nathalie, Bardinet, Carine, Abid, Karim, Buclin, Thierry, Grouzmann, Eric, Chtioui, Haithem

“…•We developed a mass spectrometry method for plasma serotonin and 8 metabolites.•The method was fully validated.•Sensitivity is sufficient to measure diurnal…”
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Sub-picomolar quantification of PTH 1-34 in plasma by UHPLC-MS/MS after subcutaneous injection of teriparatide and identification of PTH 1-33, its degradation product by Eugster, Philippe J., Chtioui, Haithem, Herren, Adeline, Dunand, Marielle, Cappelle, Delphine, Bourquin, Julien, Buclin, Thierry, Grouzmann, Eric

“…•A specific sensitive (LOQ 0.4 pM) UHPLC-MS/MS method for plasma PTH 1-34 was validated.•PTH 1-34 was detectable 4 hours after injection of a standard dose in…”
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Quantification of Neuropeptide Y and Four of Its Metabolites in Human Plasma by Micro-UHPLC-MS/MS by Vocat, Céline, Dunand, Marielle, Hubers, Scott A, Bourdillon, Nicolas, Millet, Grégoire P, Brown, Nancy J, Wuerzner, Grégoire, Grouzmann, Eric, Eugster, Philippe J

“…Neuropeptide Y (NPY) is a 36-amino acid peptide circulating at a subpicomolar concentration participating in multiple physiological and pathological processes…”
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Pediatric reference intervals for plasma free and total metanephrines established with a parametric approach: Relevance to the diagnosis of neuroblastoma by Franscini, Laura Crosazzo, Vazquez-Montes, Maria, Buclin, Thierry, Perera, Rafael, Dunand, Marielle, Grouzmann, Eric, Beck-Popovic, Maja

“…Background Urine catecholamines, vanillylmandelic, and homovanillic acid are recognized biomarkers for the diagnosis and follow‐up of neuroblastoma. Plasma…”
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Analytical interference of 4-hydroxy-3-methoxymethamphetamine with the measurement of plasma free normetanephrine by ultra-high pressure liquid chromatography–tandem mass spectrometry by Dunand, Marielle, Donzelli, Massimiliano, Rickli, Anna, Hysek, Cédric M., Liechti, Matthias E., Grouzmann, Eric

“…The diagnosis of pheochromocytoma relies on the measurement of plasma free metanephrines assay whose reliability has been considerably improved by ultra-high…”
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Enzyme and acid deconjugation of plasma sulfated metanephrines by Glauser, Melanie, Metrailler, Michael, Gerber-Lemaire, Sandrine, Centeno, Catherine, Seghezzi, Caroline, Dunand, Marielle, Abid, Karim, Herren, Adeline, Grouzmann, Eric

“…Total (i.e. free+sulfated) metanephrines in plasma is a biomarker for the diagnosis of pheochromocytoma/paraganglioma. Sulfated metanephrines must be…”
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Pediatric reference intervals for plasma free and total metanephrines established with a parametric approach: Relevance to the diagnosis of neuroblastoma: Plasma Metanephrines for Neuroblastoma by Franscini, Laura Crosazzo, Vazquez-Montes, Maria, Buclin, Thierry, Perera, Rafael, Dunand, Marielle, Grouzmann, Eric, Beck-Popovic, Maja

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