2008
Simultaneous determination of uric acid metabolites allantoin, 6-aminouracil, and triuret in human urine using liquid chromatography–mass spectrometry
Kim KM, Henderson GN, Frye RF, Galloway CD, Brown NJ, Segal MS, Imaram W, Angerhofer A, Johnson RJ. Simultaneous determination of uric acid metabolites allantoin, 6-aminouracil, and triuret in human urine using liquid chromatography–mass spectrometry. Journal Of Chromatography B 2008, 877: 65-70. PMID: 19081307, PMCID: PMC2684329, DOI: 10.1016/j.jchromb.2008.11.029.Peer-Reviewed Original ResearchConceptsUric acidUrinary metabolitesOxidative stressSelected-reaction monitoringUrinary creatinineNormal individualsNitric oxideUrine samplesLiquid chromatography-mass spectrometryBiological samplesPositive ion modeTandem mass spectrometry methodHigh-performance liquid chromatographyMass spectrometry methodChromatography-mass spectrometryUrineInter-day precisionMetabolitesUrinary allantoinIon modeLC-MS/MS analysisHuman urineGradient HPLCMost mammalsSpectrometry method
2004
Relationship Between Carbamoyl-Phosphate Synthetase Genotype and Systemic Vascular Function
Summar ML, Gainer JV, Pretorius M, Malave H, Harris S, Hall LD, Weisberg A, Vaughan DE, Christman BW, Brown NJ. Relationship Between Carbamoyl-Phosphate Synthetase Genotype and Systemic Vascular Function. Hypertension 2004, 43: 186-191. PMID: 14718356, DOI: 10.1161/01.hyp.0000112424.06921.52.Peer-Reviewed Original ResearchConceptsForearm blood flowNitric oxide metabolite concentrationsNitric oxide metabolitesBlood flowOxide metabolitesNitric oxide-mediated vasodilationVascular smooth muscle reactivityAllele homozygotesTissue-type plasminogen activator antigenSystemic vascular functionSmooth muscle reactivityPlasminogen activator antigenC allele homozygotesNitric oxide productionMetabolite concentrationsVasodilator responseBrachial arteryMuscle reactivityVascular functionHealthy subjectsBlood samplesSodium nitroprussideC alleleOxide productionCarbamoyl phosphate synthetase 1