2021
Evidence for SARS-CoV-2 Spike Protein in the Urine of COVID-19 Patients
George S, Pal AC, Gagnon J, Timalsina S, Singh P, Vydyam P, Munshi M, Chiu JE, Renard I, Harden CA, Ott IM, Watkins AE, Vogels CBF, Lu P, Tokuyama M, Venkataraman A, Casanovas-Massana A, Wyllie AL, Rao V, Campbell M, Farhadian SF, Grubaugh ND, Dela Cruz CS, Ko AI, Perez A, Akaho EH, Moledina DG, Testani J, John AR, Ledizet M, Mamoun CB, Team A. Evidence for SARS-CoV-2 Spike Protein in the Urine of COVID-19 Patients. Kidney360 2021, 2: 924-936. PMID: 35373072, PMCID: PMC8791366, DOI: 10.34067/kid.0002172021.Peer-Reviewed Original ResearchConceptsSARS-CoV-2 spike proteinSARS-CoV-2Spike proteinUrine samplesSARS-CoV-2 infectionYale-New Haven HospitalCOVID-19 patientsAntigen capture assayDetectable viral RNANew Haven HospitalPositive PCR resultsPossible long-term consequencesSpike S1 proteinNP PCRChildren's HospitalNasopharyngeal swabsSARS-CoV-2 spike S1 proteinRenal abnormalitiesLong-term effectsCystatin CLong-term consequencesHospitalUrineViral RNAAlbuminuria
2020
Cystatin C and Muscle Mass in Patients With Heart Failure
Ivey-Miranda JB, Inker LA, Griffin M, Rao V, Maulion C, Turner JM, Wilson FP, Tang WHW, Levey AS, Testani JM. Cystatin C and Muscle Mass in Patients With Heart Failure. Journal Of Cardiac Failure 2020, 27: 48-56. PMID: 32750487, PMCID: PMC8672303, DOI: 10.1016/j.cardfail.2020.07.013.Peer-Reviewed Original ResearchConceptsHeart failureCreatinine clearanceMuscle massCystatin CHigher muscle massAssociation of eGFRcysGlomerular filtration rateLow muscle massCystatin C levelsAccurate GFR estimationMultivariable analysisFiltration rateEGFRcysEGFRcrBody compositionGFR estimationPatientsCreatinineC levelsClearanceMortalityAssociation
2019
Sarcopenia Strongly Affects Serum Levels of Cystatin C in Patients with Heart Failure
Ivey-Miranda J, Stewart B, Gomez N, Barnett J, Thomas A, Wycallis E, Pattoli M, Struyk G, Fleming J, Shamlian P, Raghavendra P, Mahoney D, Griffin M, Rao V, Testani J. Sarcopenia Strongly Affects Serum Levels of Cystatin C in Patients with Heart Failure. Journal Of Cardiac Failure 2019, 25: s20-s21. DOI: 10.1016/j.cardfail.2019.07.059.Peer-Reviewed Original ResearchGlomerular filtration rateSerum cystatin CSerum cystatin C levelsHeart failureCystatin C levelsCystatin CSerum creatinineMuscle massCreatinine clearanceSerum levelsCystatin C serum levelsDecompensated heart failureC levelsC serum levelsUrine creatinine excretionLow muscle massCreatinine excretion rateRenal functionLess muscle massLowest tertileUse of creatinineCreatinine excretionFiltration rateUnivariate analysisUrine collectionDiscordance between Estimate Glomerular Filtration Rate with Creatinine and Cystatin is Associated with Inflammation and Worsened Survival in Heart Failure
Ivey-Miranda J, Stewart B, Gomez N, Thomas A, Wycallis E, Pattoli M, Struyk G, Fleming J, Shamlian P, Barnett J, Raghavendra P, Mahoney D, Griffin M, Rao V, Testani J. Discordance between Estimate Glomerular Filtration Rate with Creatinine and Cystatin is Associated with Inflammation and Worsened Survival in Heart Failure. Journal Of Cardiac Failure 2019, 25: s20. DOI: 10.1016/j.cardfail.2019.07.057.Peer-Reviewed Original ResearchGlomerular filtration rateMin/m2Cystatin CHeart failureFiltration rateIndividual patientsGFR estimatesChronic stable heart failureEstimate glomerular filtration rateStable heart failureMarkers of inflammationPlasma interleukin-6Independent prognostic informationC-reactive proteinCause mortalityInflammatory markersSerum creatinineWorsened survivalOutpatient cohortMultivariable analysisPrognostic valuePrognostic informationInterleukin-6Patient differencesInflammation