Search Results - "Lukas, Pierre"

Vitamin D Standardization Program (VDSP) intralaboratory study for the assessment of 25-hydroxyvitamin D assay variability and bias by Wise, Stephen A., Camara, Johanna E., Sempos, Christopher T., Lukas, Pierre, Le Goff, Caroline, Peeters, Stephanie, Burdette, Carolyn Q., Nalin, Federica, Hahm, Grace, Durazo-Arvizu, Ramón A., Kuszak, Adam J., Merkel, Joyce, Cavalier, Étienne

“…[Display omitted] •Single-laboratory study assessed variability and bias for 12 assays for total serum 25(OH)D.•All 12 assays achieved ≤ 10 % CV and 9 achieved…”
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Aminoterminal propeptide of type I procollagen (PINP) in chronic kidney disease patients: the assay matters by Cavalier, Etienne, Lukas, Pierre, Carlisi, Agnes, Gadisseur, Romy, Delanaye, Pierre

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Evaluation of automated immunoassays for 25(OH)-vitamin D determination in different critical populations before and after standardization of the assays by Cavalier, Etienne, Lukas, Pierre, Crine, Yannick, Peeters, Stéphanie, Carlisi, Agnès, Le Goff, Caroline, Gadisseur, Romy, Delanaye, Pierre, Souberbielle, Jean-Claude

“…Standardization of immunoassays for 25(OH)-vitamin D determination is a major problem in clinical practice. A worldwide standardization program has started to…”
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New Faecal Calprotectin Assay by IDS: Validation and Comparison to DiaSorin Method by Castiglione, Vincent, Berodes, Maëlle, Lukas, Pierre, Louis, Edouard, Cavalier, Etienne, Lutteri, Laurence

“…Background: The faecal calprotectin (FC) measurement is used for inflammatory bowel disease (IBD) diagnosis and follow-up. The aim of this study was to…”
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Analytical Performance Specifications for 25-Hydroxyvitamin D Examinations by Cavalier, Etienne, Fraser, Callum G, Bhattoa, Harjit P, Heijboer, Annemieke C, Makris, Konstantinos, Ulmer, Candice Z, Vesper, Hubert W, Vasikaran, Samuel, Lukas, Pierre, Delanaye, Pierre, Carobene, Anna, On Behalf Of The Ifcc-Iof Committee For Bone Metabolism

“…Currently the 25-hydroxy vitamin D (25(OH)D) concentration is thought to be the best estimate of the vitamin D status of an individual. Unfortunately, its…”
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Evaluation of the cross-reactivity of 25-hydroxyvitamin D2 on seven commercial immunoassays on native samples by Le Goff, Caroline, Peeters, Stéphanie, Crine, Yannick, Lukas, Pierre, Souberbielle, Jean-Claude, Cavalier, Etienne

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Analytical evaluation of the Nittobo Medical tartrate resistant acid phosphatase isoform 5b (TRACP-5b) EIA and comparison with IDS iSYS in different clinically defined populations by Cavalier, Etienne, Lukas, Pierre, Delanaye, Pierre

“…Tartrate-resistant acid phosphatase, isoform 5b (TRACP-5b) is a bone resorption marker not influenced by renal function or food intake. TRACP-5b can be…”
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Validation of an LC-MS/MS Method Using Solid-Phase Extraction for the Quantification of 1-84 Parathyroid Hormone: Toward a Candidate Reference Measurement Procedure by Farré-Segura, Jordi, Le Goff, Caroline, Lukas, Pierre, Cobraiville, Gaël, Fillet, Marianne, Servais, Anne-Catherine, Delanaye, Pierre, Cavalier, Etienne

“…Parathyroid hormone (PTH) measurement is important for patients with disorders of calcium metabolism, including those needing bone-turnover monitoring due to…”
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Evaluation of analytical and clinical performance of the AFIAS Tn-I plus assay - a new point-of-care by Pittie, Guillaume, Lukas, Pierre, Massart, Madysone, Cavalier, Etienne, Le Goff, Caroline

“…The objective of this evaluation was to determine the analytical and clinical performance of the AFIAS point-of-care (POC) Tn-I Plus assay (Boditech Med Inc)…”
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The percentage of non-oxidized PTH concentration remains stable over a period of 1 year in hemodialyzed patients by Cavalier, Etienne, Lukas, Pierre, Warling, Xavier, Moonen, Martial, Smelten, Nicole, Delanaye, Pierre

“…•The percentage of non-oxidized PTH is stable over time in hemodialyzed patients.•The percentage of non-oxidized PTH can be very different from one HD patient…”
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Analytical and clinical evaluation of the new Fujirebio Lumipulse®G non-competitive assay for 25(OH)-vitamin D and three immunoassays for 25(OH)D in healthy subjects, osteoporotic patients, third trimester pregnant women, healthy African subjects, hemodialyzed and intensive care patients by Cavalier, Etienne, Lukas, Pierre, Bekaert, Anne-Catherine, Peeters, Stéphanie, Le Goff, Caroline, Yayo, Eric, Delanaye, Pierre, Souberbielle, Jean-Claude

“…In this study, we provide a short analytical evaluation of the new Fujirebio Lumipulse®G non-competitive immunoassay for 25(OH)D. Clinical performance was…”
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European Biological Variation Study (EuBIVAS): within- and between-subject biological variation estimates of β-isomerized C-terminal telopeptide of type I collagen (β-CTX), N-terminal propeptide of type I collagen (PINP), osteocalcin, intact fibroblast growth factor 23 and uncarboxylated-unphosphorylated matrix-Gla protein—a cooperation between the EFLM Working Group on Biological Variation and the International Osteoporosis Foundation-International Federation of Clinical Chemistry Committee on by Cavalier, E., Lukas, P., Bottani, M., Aarsand, A.K., Ceriotti, F., Coşkun, A., Díaz-Garzón, J., Fernàndez-Calle, P., Guerra, E., Locatelli, M., Sandberg, S., Carobene, A.

“…Summary We have calculated the biological variation (BV) of different bone metabolism biomarkers on a large, well-described cohort of subjects. BV is important…”
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Evaluation of inactive Matrix-Gla-Protein (MGP) as a biomarker for incident and recurrent kidney stones by Castiglione, Vincent, Pottel, Hans, Lieske, John Charles, Lukas, Pierre, Cavalier, Etienne, Delanaye, Pierre, Rule, Andrew David

“…Background Matrix-Gla-protein (MGP) is an inhibitor of vascular calcification. Its dephosphorylated and uncarboxylated inactive form, dpucMGP, is a marker of…”
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Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program (VDSP) Intercomparison Study 2 — Part 2 ligand binding assays — impact of 25-hydroxyvitamin D2 and 24R,25-dihydroxyvitamin D3 on assay performance by Wise, Stephen A., Camara, Johanna E., Burdette, Carolyn Q., Hahm, Grace, Nalin, Federica, Kuszak, Adam J., Merkel, Joyce, Durazo-Arvizu, Ramón A., Williams, Emma L., Popp, Christian, Beckert, Christian, Schultess, Jan, Van Slooten, Glen, Tourneur, Carole, Pease, Camille, Kaul, Ravi, Villarreal, Alfredo, Batista, Marcelo Cidade, Pham, Heather, Bennett, Alex, Jansen, Eugene, Khan, Dilshad Ahmed, Kilbane, Mark, Twomey, Patrick J., Freeman, James, Parker, Neil, Mushtaq, Sohail, Simpson, Christine, Lukas, Pierre, Cavalier, Étienne, Sempos, Christopher T.

“…An interlaboratory comparison study was conducted by the Vitamin D Standardization Program (VDSP) to assess the performance of ligand binding assays (Part 2)…”
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Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program (VDSP) Intercomparison Study 2 — Part 1 liquid chromatography – tandem mass spectrometry (LC-MS/MS) assays — impact of 3-epi-25-hydroxyvitamin D3 on assay performance by Wise, Stephen A., Camara, Johanna E., Burdette, Carolyn Q., Hahm, Grace, Nalin, Federica, Kuszak, Adam J., Merkel, Joyce, Durazo-Arvizu, Ramón A., Williams, Emma L., Hoofnagle, Andrew N., Ivison, Fiona, Fischer, Ralf, van den Ouweland, Jody M. W., Ho, Chung S., Law, Emmett W. K., Simard, Jean-Nicolas, Gonthier, Renaud, Holmquist, Brett, Meadows, Sarah, Cox, Lorna, Robyak, Kimberly, Creer, Michael H., Fitzgerald, Robert, Clarke, Michael W., Breen, Norma, Lukas, Pierre, Cavalier, Étienne, Sempos, Christopher T.

“…An interlaboratory comparison study was conducted by the Vitamin D Standardization Program (VDSP) to assess the performance of liquid chromatography – tandem…”
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Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program (VDSP) Intercomparison Study 2 - Part 1 liquid chromatography - tandem mass spectrometry (LC-MS/MS) assays - impact of 3-epi-25-hydroxyvitamin D 3 on assay performance by Wise, Stephen A, Camara, Johanna E, Burdette, Carolyn Q, Hahm, Grace, Nalin, Federica, Kuszak, Adam J, Merkel, Joyce, Durazo-Arvizu, Ramón A, Williams, Emma L, Hoofnagle, Andrew N, Ivison, Fiona, Fischer, Ralf, van den Ouweland, Jody M W, Ho, Chung S, Law, Emmett W K, Simard, Jean-Nicolas, Gonthier, Renaud, Holmquist, Brett, Meadows, Sarah, Cox, Lorna, Robyak, Kimberly, Creer, Michael H, Fitzgerald, Robert, Clarke, Michael W, Breen, Norma, Lukas, Pierre, Cavalier, Étienne, Sempos, Christopher T

“…An interlaboratory comparison study was conducted by the Vitamin D Standardization Program (VDSP) to assess the performance of liquid chromatography - tandem…”
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Standardization of DiaSorin and Roche automated third generation PTH assays with an International Standard: impact on clinical populations by Cavalier, Etienne, Delanaye, Pierre, Lukas, Pierre, Carlisi, Agnes, Gadisseur, Romy, Souberbielle, Jean-Claude

“…Standardization of parathyroid hormone (PTH) assays is a major issue, especially in hemodialyzed (HD) patients. Two automated third generation PTH assays…”
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Sunscreens block cutaneous vitamin D production with only a minimal effect on circulating 25-hydroxyvitamin D by Libon, Florence, Courtois, Justine, Le Goff, Caroline, Lukas, Pierre, Fabregat-Cabello, Neus, Seidel, Laurence, Cavalier, Etienne, Nikkels, Arjen F.

“…Summary A 50+ SPF sunscreen decreased significantly cutaneous vitamin D production following a single narrow-band (nb)UVB exposure, independently from the body…”
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Analytical and clinical validation of the new Abbot Architect 25(OH)D assay: fit for purpose? by Cavalier, Etienne, Lukas, Pierre, Bekaert, Anne-Catherine, Carlisi, Agnès, Le Goff, Caroline, Delanaye, Pierre, Souberbielle, Jean-Claude

“…We provide a clinical and analytical evaluation of the reformulated version of the Abbott Architect 25-hydroxyvitamin D assay. We compared this assay with…”
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Effect of Body Site and Surface on Vitamin D and 25-Hydroxyvitamin D Production after a Single Narrowband UVB Exposure by Libon, Florence, Courtois, Justine, Le Goff, Caroline, Lukas, Pierre, Fabregat-Cabello, Neus, Seidel, Laurence, Cavalier, Etienne, Nikkels, Arjen F.

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