2023
Ursodeoxycholic acid is associated with a reduction in SARS‐CoV‐2 infection and reduced severity of COVID‐19 in patients with cirrhosis
John B, Bastaich D, Webb G, Brevini T, Moon A, Ferreira R, Chin A, Kaplan D, Taddei T, Serper M, Mahmud N, Deng Y, Chao H, Sampaziotis F, Dahman B. Ursodeoxycholic acid is associated with a reduction in SARS‐CoV‐2 infection and reduced severity of COVID‐19 in patients with cirrhosis. Journal Of Internal Medicine 2023, 293: 636-647. PMID: 37018129, DOI: 10.1111/joim.13630.Peer-Reviewed Original ResearchConceptsSARS-CoV-2 infectionCritical COVID-19Ursodeoxycholic acidPropensity scoreCOVID-19Severe acute respiratory syndrome coronavirus 2Farnesoid X receptor activityAcute respiratory syndrome coronavirus 2Human lungRespiratory syndrome coronavirus 2COVID-19-related deathsRetrospective cohort studyModerate COVID-19Symptomatic COVID-19Multivariable logistic regressionLarge national cohortSyndrome coronavirus 2Coronavirus disease 2019Angiotensin-converting enzymePotential novel targetUDCA useClinical characteristicsCohort studyVaccination statusCoronavirus 2
2022
Third dose of COVID-19 mRNA vaccine appears to overcome vaccine hyporesponsiveness in patients with cirrhosis
John BV, Ferreira RD, Doshi A, Kaplan DE, Taddei TH, Spector SA, Paulus E, Deng Y, Bastaich D, Dahman B. Third dose of COVID-19 mRNA vaccine appears to overcome vaccine hyporesponsiveness in patients with cirrhosis. Journal Of Hepatology 2022, 77: 1349-1358. PMID: 36181987, PMCID: PMC9519143, DOI: 10.1016/j.jhep.2022.07.036.Peer-Reviewed Original ResearchConceptsCOVID-19 mRNA vaccinesCritical COVID-19COVID-19-related deathsThird doseMRNA vaccinesCOVID-19Propensity-matched control groupRetrospective cohort studyModerate COVID-19Symptomatic COVID-19Veterans Health AdministrationBNT-162b2BNT162b2 mRNAModerna mRNACohort studyImmune dysregulationCirrhosisSimilar riskGeneral populationMagnitude of reductionPatientsControl groupHealth AdministrationVaccineAbstractTextCOVID-19 vaccine effectiveness and community prevalence of Alpha, Delta and Omicron variants in patients with cirrhosis
John B, Bastaich D, Ferreira R, Doshi A, Taddei T, Kaplan D, Spector S, Deng Y, Dahman B. COVID-19 vaccine effectiveness and community prevalence of Alpha, Delta and Omicron variants in patients with cirrhosis. Gut 2022, 72: 1800-1802. PMID: 36562753, DOI: 10.1136/gutjnl-2022-327799.Peer-Reviewed Original ResearchComparison of infection‐induced and vaccine‐induced immunity against COVID‐19 in patients with cirrhosis
John BV, Doshi A, Ferreira RD, Taddei TH, Kaplan DE, Spector SA, Deng Y, Bastaich D, Dahman B. Comparison of infection‐induced and vaccine‐induced immunity against COVID‐19 in patients with cirrhosis. Hepatology 2022, 77: 186-196. PMID: 35712794, DOI: 10.1002/hep.32619.Peer-Reviewed Original ResearchConceptsPositive SARS-CoV-2 polymerase chain reactionVaccine-induced immunitySARS-CoV-2 infectionInfection-induced immunityImmunity groupsReduced oddsSARS-CoV-2 polymerase chain reactionCOVID-19Retrospective cohort studyCritical COVID-19Multivariable logistic regressionSARS-CoV-2Unvaccinated participantsUnvaccinated patientsFull vaccinationCohort studyCOVID-19 variantsCommunity prevalencePrevious infectionMRNA vaccinesPolymerase chain reactionUS veteransTreatment weightingCirrhosisPropensity score
2021
Coronavirus Disease 2019 Vaccination Is Associated With Reduced Severe Acute Respiratory Syndrome Coronavirus 2 Infection and Death in Liver Transplant Recipients
John BV, Deng Y, Khakoo NS, Taddei TH, Kaplan DE, Dahman B. Coronavirus Disease 2019 Vaccination Is Associated With Reduced Severe Acute Respiratory Syndrome Coronavirus 2 Infection and Death in Liver Transplant Recipients. Gastroenterology 2021, 162: 645-647.e2. PMID: 34758352, PMCID: PMC8572555, DOI: 10.1053/j.gastro.2021.11.001.Peer-Reviewed Original ResearchConceptsAcute respiratory syndrome coronavirus 2 infectionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infectionSyndrome coronavirus 2 infectionCoronavirus disease 2019 (COVID-19) vaccinationCoronavirus 2 infectionLiver transplant recipientsTransplant recipientsVaccinationInfectionRecipientsChanges in Hepatocellular Carcinoma Surveillance and Risk Factors for Noncompletion in the Veterans Health Administration Cohort During the Coronavirus Disease 2019 Pandemic
Mahmud N, Kaplan DE, Goldberg DS, Taddei TH, Serper M. Changes in Hepatocellular Carcinoma Surveillance and Risk Factors for Noncompletion in the Veterans Health Administration Cohort During the Coronavirus Disease 2019 Pandemic. Gastroenterology 2021, 160: 2162-2164.e3. PMID: 33434604, PMCID: PMC8142896, DOI: 10.1053/j.gastro.2021.01.007.Peer-Reviewed Original Research
2020
Patterns of COVID-19 testing and mortality by race and ethnicity among United States veterans: A nationwide cohort study
Rentsch CT, Kidwai-Khan F, Tate JP, Park LS, King JT, Skanderson M, Hauser RG, Schultze A, Jarvis CI, Holodniy M, Re V, Akgün KM, Crothers K, Taddei TH, Freiberg MS, Justice AC. Patterns of COVID-19 testing and mortality by race and ethnicity among United States veterans: A nationwide cohort study. PLOS Medicine 2020, 17: e1003379. PMID: 32960880, PMCID: PMC7508372, DOI: 10.1371/journal.pmed.1003379.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overBetacoronavirusBlack or African AmericanClinical Laboratory TechniquesCohort StudiesCoronavirus InfectionsCOVID-19COVID-19 TestingEthnicityFemaleHispanic or LatinoHumansMaleMiddle AgedPandemicsPneumonia, ViralRetrospective StudiesSARS-CoV-2United StatesVeteransWhite PeopleYoung AdultConceptsCOVID-19 testingRace/ethnicityCohort studyWhite individualsSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infectionAcute respiratory syndrome coronavirus 2 infectionSyndrome coronavirus 2 infectionSARS-CoV-2 infectionCOVID-19Large integrated healthcare systemCoronavirus 2 infectionNationwide cohort studyRetrospective cohort studyCoronavirus disease 2019Site of careIntegrated healthcare systemNon-Hispanic blacksPositive test resultsNon-Hispanic whitesClinical characteristicsMultivariable adjustmentComorbid conditionsMedication historyEthnic minority communitiesDisease 2019