2021
Defective Early B Cell Tolerance Checkpoints in Patients With Systemic Sclerosis Allow the Production of Self Antigen–Specific Clones
Glauzy S, Olson B, May CK, Parisi D, Massad C, Hansen JE, Ryu C, Herzog EL, Meffre E. Defective Early B Cell Tolerance Checkpoints in Patients With Systemic Sclerosis Allow the Production of Self Antigen–Specific Clones. Arthritis & Rheumatology 2021, 74: 307-317. PMID: 34279059, PMCID: PMC8766600, DOI: 10.1002/art.41927.Peer-Reviewed Original ResearchConceptsB cell tolerance checkpointsEarly B cell tolerance checkpointsPeripheral B cell tolerance checkpointsNaive B cellsMature naive B cellsSystemic sclerosisTransitional B cellsTolerance checkpointsB cellsHealthy donorsAutoreactive mature naive B cellsAutoreactive naive B cellsAntigen-specific B cellsCentral B cell toleranceB cell toleranceB cell productionAntigen-specific clonesReactivity of antibodiesSingle B cellsSSc patientsSerum autoantibodiesAutoimmune diseasesImmune complexesPatientsCell tolerance
2019
Plasma mitochondrial DNA is associated with extrapulmonary sarcoidosis
Ryu C, Brandsdorfer C, Adams T, Hu B, Kelleher DW, Yaggi M, Manning EP, Walia A, Reeves B, Pan H, Winkler J, Minasyan M, Dela Cruz CS, Kaminski N, Gulati M, Herzog EL. Plasma mitochondrial DNA is associated with extrapulmonary sarcoidosis. European Respiratory Journal 2019, 54: 1801762. PMID: 31273041, PMCID: PMC8088542, DOI: 10.1183/13993003.01762-2018.Peer-Reviewed Original ResearchConceptsExtrapulmonary diseaseMitochondrial DNAExtracellular mtDNABAL fluidAlpha-1 antitrypsin deficiencyPlasma mitochondrial DNAPlasma of patientsAfrican AmericansExtrapulmonary sarcoidosisSarcoidosis cohortSarcoidosis subjectsScadding stageAfrican American descentClinical featuresClinical findingsGranulomatous diseaseHealthy controlsAntitrypsin deficiencyGenomic researchHigher oddsSarcoidosisAggressive phenotypeMechanistic basisDiseaseTherapeutic insights
2018
S100A12 as a marker of worse cardiac output and mortality in pulmonary hypertension
Tzouvelekis A, Herazo‐Maya J, Ryu C, Chu J, Zhang Y, Gibson KF, Adonteng‐Boateng P, Li Q, Pan H, Cherry B, Ahmad F, Ford HJ, Herzog EL, Kaminski N, Fares WH. S100A12 as a marker of worse cardiac output and mortality in pulmonary hypertension. Respirology 2018, 23: 771-779. PMID: 29611244, PMCID: PMC6047907, DOI: 10.1111/resp.13302.Peer-Reviewed Original ResearchConceptsPeripheral blood mononuclear cellsPH patientsPH cohortCardiac outputWorld Health Organization group 1Idiopathic pulmonary fibrosis patientsPulmonary hypertension patientsPulmonary fibrosis patientsBlood mononuclear cellsProtein serum concentrationsHigher S100A12Pulmonary hypertensionS100A12 levelsOverall mortalityHypertension patientsPrognostic valueValidation cohortMononuclear cellsPeripheral bloodSerum concentrationsInflammatory diseasesGroup 1PatientsFibrosis patientsS100A12
2017
Upper Airway Obstruction Requiring Emergent Tracheostomy Secondary to Laryngeal Sarcoidosis: A Case Report
Ryu C, Herzog EL, Pan H, Homer R, Gulati M. Upper Airway Obstruction Requiring Emergent Tracheostomy Secondary to Laryngeal Sarcoidosis: A Case Report. American Journal Of Case Reports 2017, 18: 157-159. PMID: 28190872, PMCID: PMC5319306, DOI: 10.12659/ajcr.902231.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsUpper airway obstructionRare extrapulmonary manifestationLaryngeal sarcoidosisLife-threatening complicationsAirway obstructionEmergent tracheostomyExtrapulmonary manifestationsCase reportComplete upper airway obstructionLow-dose prednisoneMonths of corticosteroidsStage 1 sarcoidosisAddition of methotrexateAfrican American femalesTapered dosageRespiratory failureSevere dyspneaInspiratory stridorSignificant morbidityPhysical examinationChronic careAryepiglottic foldsTimely diagnosisSarcoidosisPrednisone