Philip Effraim, MD, PhD
Assistant Professor of AnesthesiologyCards
About
Research
Publications
2024
TRPM8 Mutations Associated With Persistent Pain After Surgical Injury of Corneal Trigeminal Axons
Ghovanloo M, Effraim P, Tyagi S, Aldrich A, Cheng X, Yuan J, Schulman B, Jacobs D, Dib-Hajj S, Waxman S. TRPM8 Mutations Associated With Persistent Pain After Surgical Injury of Corneal Trigeminal Axons. Neurology Genetics 2024, 10: e200206. PMID: 39555137, PMCID: PMC11567650, DOI: 10.1212/nxg.0000000000200206.Peer-Reviewed Original ResearchLaser-assisted in situ keratomileusisPostoperative ocular painTrigeminal ganglion neuronsOcular painMultielectrode array recordingsPersistent painGanglion neuronsLaser-assisted in situ keratomileusis surgeryAxonal injuryRat trigeminal ganglion neuronsTransient receptor potential cation channelCorneal refractive surgeryMultielectrode arraysAnalysis of patientsPatch-clamp analysisGenomic analysis of patientsWild-typePatch-clamp resultsExposure to mentholRefractive surgeryHyperpolarizing directionNeuronal hyperexcitabilityPain-freeTrigeminal axonsWT channelsImpacts of resident physician unionization on house staff compensation
Tyagi S, Shah R, Huttler J, Kayani J, Ghovanloo M, Effraim P. Impacts of resident physician unionization on house staff compensation. PLOS ONE 2024, 19: e0308100. PMID: 39361626, PMCID: PMC11449312, DOI: 10.1371/journal.pone.0308100.Peer-Reviewed Original ResearchConceptsNon-union counterpartsPhysician unionsWorking long hoursUnion statusResidency training programsUnion programCost-of-livingLow wagesStaff compensationLong hoursTraining programSalaryInternal medicine residency training programsPhysicians-in-trainingRegional factorsDisbursementBenefit dataCross-sectional investigationMonetary benefitsUnionResident salariesCompensationCost-of-living differencesPGY-1Residency programsNav1.8 in small dorsal root ganglion neurons contributes to vincristine-induced mechanical allodynia
Nascimento de Lima A, Zhang H, Chen L, Effraim P, Gomis-Perez C, Cheng X, Huang J, Waxman S, Dib-Hajj S. Nav1.8 in small dorsal root ganglion neurons contributes to vincristine-induced mechanical allodynia. Brain 2024, 147: 3157-3170. PMID: 38447953, DOI: 10.1093/brain/awae071.Peer-Reviewed Original ResearchDorsal root ganglion neuronsDorsal root ganglionVincristine-induced mechanical allodyniaVincristine-induced peripheral neuropathyMechanical allodyniaVincristine treatmentNav1.8 channelsSmall dorsal root ganglion neuronsDevelopment of mechanical allodyniaTTX-R current densityVoltage-gated sodium channel Nav1.6Vincristine-treated animalsCurrent-clamp recordingsSodium channel Nav1.8Voltage-clamp recordingsReducing current thresholdSodium channel Nav1.6Investigate pathophysiological mechanismsTTX-RHyperpolarizing shiftRoot ganglionAllodyniaGanglion neuronsVincristine administrationPeripheral neuropathyTRPM8 mutations associated with persistent ocular pain after refractive surgery: D665N and V915M
Ghovanloo M, Effraim P, Tyagi S, Cheng X, Yuan J, Schulman B, Jacobs D, Dib-Hajj S, Waxman S. TRPM8 mutations associated with persistent ocular pain after refractive surgery: D665N and V915M. Biophysical Journal 2024, 123: 391a. DOI: 10.1016/j.bpj.2023.11.2376.Peer-Reviewed Original ResearchFunctionally-selective inhibition of threshold sodium currents and excitability in dorsal root ganglion neurons by cannabinol
Ghovanloo M, Effraim P, Tyagi S, Zhao P, Dib-Hajj S, Waxman S. Functionally-selective inhibition of threshold sodium currents and excitability in dorsal root ganglion neurons by cannabinol. Communications Biology 2024, 7: 120. PMID: 38263462, PMCID: PMC10805714, DOI: 10.1038/s42003-024-05781-x.Peer-Reviewed Original ResearchConceptsDorsal root ganglionDorsal root ganglion neuronal excitabilityDorsal root ganglion neuronsNeuronal excitabilityCurrent-clamp analysisSteady-state inactivationVoltage-dependent sodiumSlow inactivated stateAutomated patch clamp platformMultielectrode array recordingsNav currentsNeuropathic painSodium currentRoot ganglionGanglion neuronsSlow inactivationInactivated stateCurrent inhibitorsIon channelsNeuronsInhibitory effectCannabinolArray recordingsEndocannabinoidCannabinoid
Clinical Trials
Current Trials
Opioid-Sparing Protocol Comparing With Opioid-based Protocol After Bilateral Total Knee Arthroplasty
HIC ID2000031881RoleSub InvestigatorPrimary Completion Date04/30/2024Recruiting ParticipantsGenderBothAge20 years - 90 years