About
Research
Overview
Medical Research Interests
Ischemic Stroke
Publications
2025
Elevated initial blood kynurenine is associated with increased odds of post-stroke infection Kynurenine and post-stroke infection
Dylla L, Reisz J, Poisson S, Herson P, Sansing L, Monte A. Elevated initial blood kynurenine is associated with increased odds of post-stroke infection Kynurenine and post-stroke infection. Journal Of Stroke And Cerebrovascular Diseases 2025, 34: 108268. PMID: 40015349, DOI: 10.1016/j.jstrokecerebrovasdis.2025.108268.Peer-Reviewed Original ResearchConceptsPost-stroke infectionsAssociated with increased oddsTryptophan metabolitesHistory of diabetes mellitusEnd stage renal diseaseNIH Stroke Scale scoreConcentrations of kynurenineAcute ischemic stroke patientsMultivariate logistic regressionStage renal diseaseStroke Scale scoreCirculating kynurenineIschemic stroke onsetIschemic stroke patientsKynurenine concentrationsConcentrations of tryptophanEmergency department admissionsKynurenic acidDiabetes mellitusMortality of ischemic strokeRenal diseaseTryptophan metabolismOdds ratioQuinolinic acidImmune response
2024
Sex Differences in Tryptophan Metabolism via the Kynurenine Pathway in Acute Ischemic Stroke
Dylla L, Higgins H, Poisson S, Vu T, Reisz J, Herson P, Monte A. Sex Differences in Tryptophan Metabolism via the Kynurenine Pathway in Acute Ischemic Stroke. Clinical Therapeutics 2024, 46: 960-966. PMID: 39603869, PMCID: PMC11637908, DOI: 10.1016/j.clinthera.2024.10.015.Peer-Reviewed Original ResearchAcute ischemic strokeQuinolinic acid levelsLevels of tryptophanNIHSS scoreTryptophan metabolismMetabolite levelsKynurenine pathwayLinear regression modelsIncreased lifetime risk of strokeLifetime risk of strokeMass spectrometry-based metabolomicsPotential sex differencesDownstream kynurenine metabolitesAssociated with poor outcomesIschemic strokeKynurenine pathway metabolitesDecreased tryptophan concentrationsIncreased lifetime riskRegression modelsMultivariate linear regression modelSex differencesExperience worse outcomesRisk of strokeAcid levelsKynurenine metabolitesNanoparticle-Binding Immunoglobulins Predict Variable Complement Responses in Healthy and Diseased Cohorts
Li Y, Saba L, Scheinman R, Banda N, Holers M, Monte A, Dylla L, Moghimi S, Simberg D. Nanoparticle-Binding Immunoglobulins Predict Variable Complement Responses in Healthy and Diseased Cohorts. ACS Nano 2024, 18: 28649-28658. PMID: 39395006, PMCID: PMC11651220, DOI: 10.1021/acsnano.4c05087.Peer-Reviewed Original ResearchConceptsPegylated liposomal doxorubicinComplement activationPredictive valuePlasma concentrationsC-reactive protein levelsAnti-PEG IgGTriggers proinflammatory responsesAnti-PEG IgMEfficacy of nanomedicinesPoor predictive valueAnti-PEG antibodiesLiposomal doxorubicinIron oxide nanowormsHealthy donorsHigher complement activationAcute infectionInflammatory disease conditionsChronic inflammationProinflammatory responseSystemic administrationComplement cascadeComplement factorsComplement responseIgMProtein levelsSex Differences in the Blood Metabolome During Acute Response to Ischemic Stroke
Dylla L, Higgins H, Stephenson D, Reisz J, Vu T, Poisson S, Herson P, Monte A. Sex Differences in the Blood Metabolome During Acute Response to Ischemic Stroke. Journal Of Women's Health 2024, 33: 1378-1384. PMID: 38946610, PMCID: PMC11564668, DOI: 10.1089/jwh.2023.1133.Peer-Reviewed Original ResearchIschemic strokeLinear regression modelsMass spectrometry-based metabolomicsLifetime risk of strokeAssociated with neurological outcomeDifferentially expressed metabolitesRegression modelsAcute ischemic strokeRisk of strokeComprehensive stroke centerBlood metabolomeNeurological outcomeAcute treatmentMetabolomic profilesLifetime riskNeurological functionIndividual metabolitesTherapeutic potentialStroke centersAcute responseResults:</i></b>Study objectiveMetabolomicsStrokeNIHSSIdentification of specific recommendations for prehospital stroke care associated with shorter door-to-CT times – An analysis of Get with the Guidelines-Stroke registry and prehospital data
Dylla L, Higgins H, Wham C, Leppert M, Ravare B, Jeppson K, Bina H, Monte A, Poisson S. Identification of specific recommendations for prehospital stroke care associated with shorter door-to-CT times – An analysis of Get with the Guidelines-Stroke registry and prehospital data. Frontiers In Stroke 2024, 3: 1355889. DOI: 10.3389/fstro.2024.1355889.Peer-Reviewed Original ResearchDoor-to-CT timeAmerican Heart AssociationGuidelines-Stroke registryAmerican Heart Association recommendationsPrehospital careStroke patientsEmergency medical services documentationIschemic stroke patientsDoor-to-computed tomographyCare of stroke patientsPrehospital medical recordsPrehospital Stroke ScaleCare of strokeMultivariate linear regression modelPrehospital providersPrehospital dataProvider educationStroke signsPotential confoundersLinear regression modelsTreatment of acute strokeComprehensive stroke centerDescriptive statisticsSuspected strokeMedical recordsOptimized Enzyme-Linked Immunosorbent Assay for Anti-PEG Antibody Detection in Healthy Donors and Patients Treated with PEGylated Liposomal Doxorubicin
Li Y, Ettah U, Jacques S, Gaikwad H, Monte A, Dylla L, Guntupalli S, Moghimi S, Simberg D. Optimized Enzyme-Linked Immunosorbent Assay for Anti-PEG Antibody Detection in Healthy Donors and Patients Treated with PEGylated Liposomal Doxorubicin. Molecular Pharmaceutics 2024, 21: 3053-3060. PMID: 38743264, DOI: 10.1021/acs.molpharmaceut.4c00278.Peer-Reviewed Original ResearchConceptsEnzyme-linked immunosorbent assayLiposomal doxorubicinHealthy donorsPatients treated with pegylated liposomal doxorubicinEnzyme-linked immunosorbent assay signalCancer patientsAnti-PEG IgGPegylated liposomal doxorubicinImmunosorbent assayOptimized ELISAEnzyme-linked immunosorbent assay protocolsAnti-PEG antibodiesChemotherapy cyclesBetween-assay variabilityPEGylated liposomesCutoff valueAccelerated clearanceTreatment cyclesDrug delivery systemsAntibody titersComplement activationInfused drugAnti-PEGOptimized assayPatientsValidation of dot blot immunoassay for measurement of complement opsonization of nanoparticles
Li Y, Monte A, Dylla L, Moghimi S, Simberg D. Validation of dot blot immunoassay for measurement of complement opsonization of nanoparticles. Journal Of Immunological Methods 2024, 528: 113668. PMID: 38574804, PMCID: PMC11023749, DOI: 10.1016/j.jim.2024.113668.Peer-Reviewed Original ResearchConceptsDeposition of C3Complement activation markersSurface C3 depositionMembrane attack complex C5b-9Activation markersDot blot immunoassayC3 depositionAnaphylatoxins C3aImmune responseNanomedicine researchC5b-9Complement attackComplement activationBlot immunoassayFluid phase markerMarkersPhase markersImmunoassaySurface resultsPathway specificityAssembly of C3 convertaseComplementNanoparticlesAbstract 106: Circulating Interleukin-6 Levels Early During Active Stroke Estimate Time of Stroke Onset: Potential New Clinical Biomarker Tool From a Mobile Stroke Unit
Kowalski R, Ledreux A, Violette J, Neumann R, Grotta J, Ornelas D, Thompson J, Monte A, Dylla L, Coughlan C, Yu X, Graner M, Jones W. Abstract 106: Circulating Interleukin-6 Levels Early During Active Stroke Estimate Time of Stroke Onset: Potential New Clinical Biomarker Tool From a Mobile Stroke Unit. Stroke 2024, 55: a106-a106. DOI: 10.1161/str.55.suppl_1.106.Peer-Reviewed Original ResearchInterleukin-6 levelsMobile stroke unitInterleukin-6Symptom onsetLesion volumeAcute strokeHealthy controlsMobile stroke unit patientsDevelopment of immunomodulatory therapiesMedian interleukin-6Circulating interleukin-6 levelsMeasurement of interleukin-6Associated with lesion volumeMedian initial NIHSS scoreDWI lesion volumeCirculating interleukin-6Plasma interleukin-6Stroke patientsOnset timeIL-6 responseTime of stroke onsetImmunomodulatory therapyMedian ageThrombolysis windowNIHSS score
2023
Provider Perceptions of Oxygenation Strategies for Critically Ill Trauma Patients With and Without Moderate-to-Severe Traumatic Brain Injury
Dylla L, Douin D, Cwik J, Steinwand A, Rice J, Jackson C, Anderson E, Higgins H, Monte A, Ginde A. Provider Perceptions of Oxygenation Strategies for Critically Ill Trauma Patients With and Without Moderate-to-Severe Traumatic Brain Injury. Military Medicine 2023, 188: 166-175. PMID: 37948260, PMCID: PMC11022338, DOI: 10.1093/milmed/usad076.Peer-Reviewed Original ResearchConceptsCritically ill trauma patientsCritical care providersTraumatic brain injuryCare providersTrauma patientsSupplemental oxygenNon-TBI patientsCross-sectional surveyUniversity of Colorado HospitalCase-based scenariosProviders' perceptionsProvider practicesCritically ill TBI patientsProviders' viewsOxygen useProvider typeAdministration of supplemental oxygenTargeted educationAssociated with increased mortalityBrain injuryOxygen saturation thresholdsModerate-to-severeSupplemental oxygen useFisher's exact testCritically ill patientsResponse to: Acute ischemic stroke and cardioemboli: Does sex matter?
Higgins H, Chen L, Ravare B, Jeppson K, Bina H, Herson P, Monte A, Poisson S, Dylla L. Response to: Acute ischemic stroke and cardioemboli: Does sex matter? The American Journal Of Emergency Medicine 2023, 74: 170-171. PMID: 37867013, PMCID: PMC10792528, DOI: 10.1016/j.ajem.2023.10.014.Peer-Reviewed Original Research
Academic Achievements & Community Involvement
Clinical Care
Overview
Layne Dylla, MD, PhD, is an emergency medicine physician who cares for adults and children with urgent or life-threatening conditions. She provides rapid assessments, stabilizes injuries and serious infections, and collaborates with others to ensure patients receive the follow-up care they need.
As an assistant professor of emergency medicine at Yale School of Medicine, Dr. Dylla studies new ways to diagnose and treat acute stroke in both the prehospital and emergency department settings, aiming to reduce long-term complications. “The best part of my job is helping patients who may be critically ill or who may lack access to other health care options,” she says.
Dr. Dylla completed her medical training and doctoral degree at the University of Colorado School of Medicine. She pursued her residency in emergency medicine and dual fellowships in experimental therapeutics and emergency medicine research at the University of Rochester Medical Center.
Clinical Specialties
Emergency Medicine
Board Certifications
Emergency Medicine
- Certification Organization
- AB of Emergency Medicine
- Original Certification Date
- 2019
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Contacts
Email
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Mailing Address
Emergency Medicine
464 Congress Ave
New Haven, CT 06519
United States