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 symptomsAnhedonia
2016
Clinically Anxious Individuals Show Disrupted Feedback between Inferior Frontal Gyrus and Prefrontal-Limbic Control Circuit
Cha J, DeDora D, Nedic S, Ide J, Greenberg T, Hajcak G, Mujica-Parodi L. Clinically Anxious Individuals Show Disrupted Feedback between Inferior Frontal Gyrus and Prefrontal-Limbic Control Circuit. Journal Of Neuroscience 2016, 36: 4708-4718. PMID: 27122030, PMCID: PMC6601720, DOI: 10.1523/jneurosci.1092-15.2016.Peer-Reviewed Original ResearchConceptsInferior frontal gyrusVentromedial prefrontal cortexFrontal gyrusPrefrontal-limbic regionsAnxious individualsStimulus meaningNeurobiological responsesPrefrontal cortexFear generalization taskPrefrontal-limbic circuitsPrefrontal-limbic connectivityEmotion regulationAffective neurosciencePrefrontal-limbic systemGeneralization taskPerceptual similaritySimilarity gradientsPrefrontal regionsFMRI studyClinical anxietyAnxiety spectrumAnxiety severityVmPFCFunctional connectivityGyrus
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