2024
Biomarkers vs Machines: The Race to Predict Acute Kidney Injury
Ghazi L, Farhat K, Hoenig M, Durant T, El-Khoury J. Biomarkers vs Machines: The Race to Predict Acute Kidney Injury. Clinical Chemistry 2024, 70: 805-819. PMID: 38299927, DOI: 10.1093/clinchem/hvad217.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsAcute kidney injuryEarly diagnosisInsulin-like growth factor-binding protein 7Prediction of acute kidney injuryGrowth factor-binding protein 7Detect acute kidney injuryNeutrophil gelatinase-associated lipocalinAcute kidney injury detectionClinical practiceIrreversible kidney damageClinical outcome studiesImminent AKISerum creatinineKidney injuryInjury markersPediatric populationCystatin CTissue inhibitorHospitalized patientsClinical useKidney damageRegulatory approvalProtein 7BiomarkersOutcome studies
2021
Determination of 97.5th and 99th percentile upper reference limits for heart-type fatty acid-binding protein (H-FABP) in a US population
Vera MA, Koch CD, Kavsak PA, El-Khoury JM. Determination of 97.5th and 99th percentile upper reference limits for heart-type fatty acid-binding protein (H-FABP) in a US population. Clinica Chimica Acta 2021, 523: 397-401. PMID: 34666029, DOI: 10.1016/j.cca.2021.10.011.Peer-Reviewed Original ResearchConceptsHeart-type fatty acid-binding proteinUpper reference limitPercentile upper reference limitClinical utilityReference limitsAcute kidney injuryHeart-type fatty acidAcute coronary syndromeAACC Universal Sample BankFatty acid-binding proteinH-FABP concentrationHealthy U.S.Coronary syndromeFinal sample populationKidney injuryAssay cutoffHealthy donorsAcid-binding proteinUS populationImmunoturbidimetric assayPotential biomarkersClinical sensitivityMyocardial tissueSerum samplesLow molecular weight proteinsAACC Guidance Document on Laboratory Investigation of Acute Kidney Injury
El-Khoury JM, Hoenig MP, Jones GRD, Lamb EJ, Parikh CR, Tolan NV, Wilson FP. AACC Guidance Document on Laboratory Investigation of Acute Kidney Injury. The Journal Of Applied Laboratory Medicine 2021, 6: 1316-1337. PMID: 33973621, DOI: 10.1093/jalm/jfab020.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsAcute kidney injuryKidney injuryNew biomarkersPotential acute kidney injuryInsulin-like growth factor binding protein 7Growth factor binding protein 7Early detectionLong-term complicationsLaboratory investigationsEmergence of biomarkersHealth care costsBinding protein 7AKI alertsKidney damageClinical indicationsCystatin CSudden episodeCare costsTissue inhibitorDiagnostic thresholdMetalloproteinases 2Test utilizationPreponderance of evidenceTraditional markersExpert recommendations
2019
Comparison of Urine and Plasma Biomarker Concentrations Measured by Aptamer-Based versus Immunoassay Methods in Cardiac Surgery Patients
Kukova LZ, Mansour SG, Coca SG, de Fontnouvelle CA, Thiessen-Philbrook HR, Shlipak MG, El-Khoury JM, Parikh CR. Comparison of Urine and Plasma Biomarker Concentrations Measured by Aptamer-Based versus Immunoassay Methods in Cardiac Surgery Patients. The Journal Of Applied Laboratory Medicine 2019, 4: 331-342. PMID: 31659071, DOI: 10.1373/jalm.2018.028621.Peer-Reviewed Original ResearchConceptsCardiac surgery patientsSurgery patientsCardiac surgeryBiomarker concentrationsAcute kidney injuryComparison of urinePlasma biomarker concentrationsImmunoassay methodPostoperative biomarkersPostoperative plasmaPreoperative biomarkersKidney injuryInjury cohortBiomarker discoveryBiomarker endpointsClinical settingCurrent immunoassay methodsBiomarker valuesUrine samplesTranslational researchUrineSpearman correlationPaired samplesPatientsSurgery
2017
Urinalysis findings and urinary kidney injury biomarker concentrations
Nadkarni GN, Coca SG, Meisner A, Patel S, Kerr KF, Patel UD, Koyner JL, Garg AX, Philbrook HT, Edelstein CL, Shlipak M, El-Khoury J, Parikh CR, on behalf of the TRIBE-AKI Consortium Investigators. Urinalysis findings and urinary kidney injury biomarker concentrations. BMC Nephrology 2017, 18: 218. PMID: 28683730, PMCID: PMC5499057, DOI: 10.1186/s12882-017-0629-z.Peer-Reviewed Original ResearchConceptsKidney injury molecule-1Post-operative samplesKidney injuryUrinalysis findingsUrinary biomarkersBiomarker concentrationsPost-operative AKIPre-operative samplesUrine dipstick testingPost-operative time pointsInjury molecule-1Time pointsRenal tubular damageUrinary biomarker concentrationsUrinary biomarker levelsTRIBE-AKI cohortLiver fatty acidClinical AKIDipstick proteinuriaProteinuria concentrationsUrinary NGALAKI biomarkersTubular damageCardiac surgeryNeutrophil gelatinase