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 2Medications for alcohol use disorder improve survival in patients with hazardous drinking and alcohol-associated cirrhosis
Rabiee A, Mahmud N, Falker C, Garcia-Tsao G, Taddei T, Kaplan D. Medications for alcohol use disorder improve survival in patients with hazardous drinking and alcohol-associated cirrhosis. Hepatology Communications 2023, 7: e0093. PMID: 36972386, PMCID: PMC10043587, DOI: 10.1097/hc9.0000000000000093.Peer-Reviewed Original ResearchConceptsAlcohol-associated cirrhosisAlcohol use disorderUse disordersCause mortalityImproved survivalPropensity scoreInpatient diagnosis codesRetrospective cohort studyCox regression analysisActive alcohol useCirrhosis decompensationCohort studyConcurrent diagnosisLiver diseasePotential confoundersDiagnosis codesVeteran outcomesCirrhosis diagnosisStrong negative predictorCirrhosisPatientsHazardous drinkingAlcohol use behaviorsCosts AssociatedAlcohol use
2022
Comparison 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
Impact of SGLT2 inhibitors in comparison with DPP4 inhibitors on ascites and death in veterans with cirrhosis on metformin
Saffo S, Kaplan DE, Mahmud N, Serper M, John BV, Ross JS, Taddei T. Impact of SGLT2 inhibitors in comparison with DPP4 inhibitors on ascites and death in veterans with cirrhosis on metformin. Diabetes Obesity And Metabolism 2021, 23: 2402-2408. PMID: 34227216, PMCID: PMC8429193, DOI: 10.1111/dom.14488.Peer-Reviewed Original ResearchConceptsSodium-glucose cotransporter 2 inhibitorsDipeptidyl peptidase-4 inhibitorsPeptidase-4 inhibitorsDiabetes mellitusLiver diseaseNon-alcoholic fatty liver diseaseCotransporter 2 inhibitorsChronic liver diseaseFatty liver diseaseVeterans Affairs hospitalIncidence of ascitesAdditional pharmacotherapyTreat analysisElectronic health dataSGLT2 inhibitorsSGLT2i usersSurrogate biomarkerDPP4 inhibitorsMetabolic effectsPatientsCirrhosisPropensity scoreAscitesConfirmatory studiesMetformin
2020
Grade 1 Acute on Chronic Liver Failure Is a Predictor for Subsequent Grade 3 Failure
Mahmud N, Sundaram V, Kaplan DE, Taddei TH, Goldberg DS. Grade 1 Acute on Chronic Liver Failure Is a Predictor for Subsequent Grade 3 Failure. Hepatology 2020, 72: 230-239. PMID: 31677284, PMCID: PMC7195222, DOI: 10.1002/hep.31012.Peer-Reviewed Original ResearchConceptsChronic liver failureAcute decompensationLiver failureOrgan failureVeterans Health Administration databaseHigh short-term mortalityGrade 1 ACLFGrade 3 ACLFRetrospective cohort studyShort-term mortalityHealth Administration databaseACLF severityTransplant evaluationGastrointestinal bleedCohort studyCirculatory failureHepatic encephalopathyCox regressionACLFStratified analysisHigh riskLower riskPatientsPropensity scoreEuropean Association