2023
Vitamin D and Bone Fractures Revisited
Malaeb H, El-Khoury J. Vitamin D and Bone Fractures Revisited. Clinical Chemistry 2023, 69: 209-209. PMID: 36724482, DOI: 10.1093/clinchem/hvac196.Peer-Reviewed Original Research
2016
High-throughput measurement of 25-hydroxyvitamin D by LC–MS/MS with separation of the C3-epimer interference for pediatric populations
Yang Y, Rogers K, Wardle R, El-Khoury JM. High-throughput measurement of 25-hydroxyvitamin D by LC–MS/MS with separation of the C3-epimer interference for pediatric populations. Clinica Chimica Acta 2016, 454: 102-106. PMID: 26772722, DOI: 10.1016/j.cca.2016.01.004.Peer-Reviewed Original Research
2012
Does Paricalcitol (Zemplar®) interfere with 1,25-dihydroxyvitamin D measurement by liquid chromatography–tandem mass spectrometry assays?
El-Khoury JM, Bicer F, Bunch DR, Yuan C, Wang S. Does Paricalcitol (Zemplar®) interfere with 1,25-dihydroxyvitamin D measurement by liquid chromatography–tandem mass spectrometry assays? Clinica Chimica Acta 2012, 415: 230-232. PMID: 23142648, DOI: 10.1016/j.cca.2012.10.050.Peer-Reviewed Original ResearchStability of 1,25-dihydroxyvitamin D2 and 1,25-dihydroxyvitamin D3 in human serum
El-Khoury JM, Wang S. Stability of 1,25-dihydroxyvitamin D2 and 1,25-dihydroxyvitamin D3 in human serum. Clinical Biochemistry 2012, 45: 707-708. PMID: 22465273, DOI: 10.1016/j.clinbiochem.2012.03.016.Peer-Reviewed Original Research
2010
Progress of liquid chromatography-mass spectrometry in measurement of vitamin D metabolites and analogues
El-Khoury JM, Reineks EZ, Wang S. Progress of liquid chromatography-mass spectrometry in measurement of vitamin D metabolites and analogues. Clinical Biochemistry 2010, 44: 66-76. PMID: 20493831, DOI: 10.1016/j.clinbiochem.2010.05.007.Peer-Reviewed Original ResearchConceptsLiquid chromatography-mass spectrometryChromatography-mass spectrometryVitamin D metabolitesD metabolitesLC-MS applicationsLC-MS methodVitamin D nutritional statusPharmaceutical applicationsBiological fluidsMechanism elucidationReference materialsD levelsSpectrometryClinical testingNutritional statusAnaloguesUnique advantagesNational Institute