2024
Microglia-mediated neuroimmune suppression in PTSD is associated with anhedonia
Bonomi R, Hillmer A, Woodcock E, Bhatt S, Rusowicz A, Angarita G, Carson R, Davis M, Esterlis I, Nabulsi N, Huang Y, Krystal J, Pietrzak R, Cosgrove K. Microglia-mediated neuroimmune suppression in PTSD is associated with anhedonia. Proceedings Of The National Academy Of Sciences Of The United States Of America 2024, 121: e2406005121. PMID: 39172786, PMCID: PMC11363315, DOI: 10.1073/pnas.2406005121.Peer-Reviewed Original ResearchConceptsPTSD groupPrefrontal-limbic circuitsNeuroimmune responseAssociated with anhedoniaPosttraumatic stress disorderPositron emission tomography brain imagingTranslocator protein availabilityBrain immune functionAnhedonic symptomsStress disorderPeripheral immune dysfunctionPTSDGroup differencesSeverity of symptomsPsychiatric diseasesTranslocator proteinBrain imagingAdministration of lipopolysaccharideSymptomsMicroglial markersLPS-induced increaseCompared to controlsImmune functionSickness symptomsAnhedoniaThe role of neurosteroids in posttraumatic stress disorder and alcohol use disorder: A review of 10 years of clinical literature and treatment implications
Peltier M, Verplaetse T, Altemus M, Zakiniaeiz Y, Ralevski E, Mineur Y, Gueorguieva R, Picciotto M, Cosgrove K, Petrakis I, McKee S. The role of neurosteroids in posttraumatic stress disorder and alcohol use disorder: A review of 10 years of clinical literature and treatment implications. Frontiers In Neuroendocrinology 2024, 73: 101119. PMID: 38184208, PMCID: PMC11185997, DOI: 10.1016/j.yfrne.2023.101119.Peer-Reviewed Original ResearchPosttraumatic stress disorderAlcohol use disorderStress disorderContext of PTSDPTSD/AUDConcurrent posttraumatic stress disorderUnderlying neurobiological mechanismsUse disordersAlcohol-related variablesNeurobiological mechanismsPTSD diagnosisTreatment developmentTreatment implicationsBody of literatureNovel interventionsClinical literatureRole of neurosteroidsDisordersTreatment outcomesYears of researchAlcohol consumptionExogenous pregnenolonePharmacological treatmentBiological variablesAllopregnanolone
2021
Imaging brain cortisol regulation in PTSD with a target for 11β-hydroxysteroid dehydrogenase type 1
Bhatt S, Hillmer AT, Rusowicz A, Nabulsi N, Matuskey D, Angarita GA, Najafzadeh S, Kapinos M, Southwick SM, Krystal JH, Carson RE, Huang Y, Cosgrove KP. Imaging brain cortisol regulation in PTSD with a target for 11β-hydroxysteroid dehydrogenase type 1. Journal Of Clinical Investigation 2021, 131: e150452. PMID: 34651587, PMCID: PMC8516462, DOI: 10.1172/jci150452.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderPositron emission tomographyVolume of distributionDehydrogenase type 1Trauma-exposed controlsPTSD groupTranslocator proteinType 1Veterans Affairs (VA) National CenterOverall PTSD severityBrain glucocorticoidBrain immuneMethodsSixteen individualsPeripheral cortisolMicroglial markersImmune suppressionTranslational Science AwardsCortisol levelsNIH National CenterTC groupCortisol regulationEmission tomographyStress disorderLower PTSD symptomsPTSD symptomsSex differences in progestogen- and androgen-derived neurosteroids in vulnerability to alcohol and stress-related disorders
Peltier MR, Verplaetse TL, Mineur YS, Gueorguieva R, Petrakis I, Cosgrove KP, Picciotto MR, McKee SA. Sex differences in progestogen- and androgen-derived neurosteroids in vulnerability to alcohol and stress-related disorders. Neuropharmacology 2021, 187: 108499. PMID: 33600842, PMCID: PMC7992136, DOI: 10.1016/j.neuropharm.2021.108499.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsStress-related disordersAlcohol useMajor depressive disorderAlcohol-related disordersAlcohol use disorderPosttraumatic stress disorderStress regulation systemComplex comorbiditiesDepressive disorderProblematic alcohol useUse disordersAlcohol misuseTherapeutic potentialTrauma exposureSubstance abuseStress disorderAnxiety disordersDisordersExposure resultsProgestogensNeurosteroidsNegative affectWomenComorbiditiesMale counterparts
2020
PTSD is associated with neuroimmune suppression: evidence from PET imaging and postmortem transcriptomic studies
Bhatt S, Hillmer AT, Girgenti MJ, Rusowicz A, Kapinos M, Nabulsi N, Huang Y, Matuskey D, Angarita GA, Esterlis I, Davis MT, Southwick SM, Friedman MJ, Duman R, Carson R, Krystal J, Pietrzak R, Cosgrove K. PTSD is associated with neuroimmune suppression: evidence from PET imaging and postmortem transcriptomic studies. Nature Communications 2020, 11: 2360. PMID: 32398677, PMCID: PMC7217830, DOI: 10.1038/s41467-020-15930-5.Peer-Reviewed Original ResearchMeSH KeywordsAcetamidesAdaptor Proteins, Signal TransducingAdultBrainCase-Control StudiesFemaleGene Expression ProfilingHealthy VolunteersHumansMaleMicrogliaMiddle AgedPositron-Emission TomographyPyridinesRadiopharmaceuticalsReceptors, GABAReceptors, Tumor Necrosis Factor, Member 14Sex FactorsStress Disorders, Post-TraumaticYoung AdultConceptsPosttraumatic stress disorderPeripheral immune activationImmune activationHigher C-reactive protein levelsC-reactive protein levelsTSPO availabilityTranslocator proteinBrain microglial activationTomography brain imagingStress-related pathophysiologyPositron emission tomography (PET) brain imagingNeuroimmune activationMicroglial activationPTSD symptom severityImmunologic regulationPostmortem studiesPTSD subgroupHealthy individualsSymptom severityTrauma exposurePTSD groupStress disorderLower relative expressionBrain imagingPET imaging