2024
Deficits in prefrontal metabotropic glutamate receptor 5 are associated with functional alterations during emotional processing in bipolar disorder
Asch R, Worhunsky P, Davis M, Holmes S, Cool R, Boster S, Carson R, Blumberg H, Esterlis I. Deficits in prefrontal metabotropic glutamate receptor 5 are associated with functional alterations during emotional processing in bipolar disorder. Journal Of Affective Disorders 2024, 361: 415-424. PMID: 38876317, PMCID: PMC11250898, DOI: 10.1016/j.jad.2024.06.025.Peer-Reviewed Original ResearchMetabotropic glutamate receptor 5Bipolar disorderGlutamate receptor 5Positron emission tomographyFear processingEmotional processingAssociated with greater activationEmotion processing taskAssociated with impulsivityFunctional brain differencesAssociated with functional alterationsParietal brain regionsPathology of BDIncreased cortical activityAssociated with difficultiesDepressive disorderHealthy comparisonReceptor availabilityBrain differencesPre/postcentral gyriAttention difficultiesGreater activationBrain regionsPsychomotor functionTreatment development
2019
Lower synaptic density is associated with depression severity and network alterations
Holmes SE, Scheinost D, Finnema SJ, Naganawa M, Davis MT, DellaGioia N, Nabulsi N, Matuskey D, Angarita GA, Pietrzak RH, Duman RS, Sanacora G, Krystal JH, Carson RE, Esterlis I. Lower synaptic density is associated with depression severity and network alterations. Nature Communications 2019, 10: 1529. PMID: 30948709, PMCID: PMC6449365, DOI: 10.1038/s41467-019-09562-7.Peer-Reviewed Original ResearchConceptsMajor depressive disorderPost-traumatic stress disorderLower synaptic densitySynaptic densityPositron emission tomographyFunctional connectivityNetwork alterationsSynaptic vesicle glycoprotein 2ASymptoms of depressionSynaptic lossDepressive disorderHealthy controlsNerve terminalsDepressive symptomsDepression severityUnmedicated individualsSynaptic connectionsEmission tomographyStress disorderVivo evidenceSymptomsDepressionSeverityDisordersAlterations
2017
Elevated Translocator Protein in Anterior Cingulate in Major Depression and a Role for Inflammation in Suicidal Thinking: A Positron Emission Tomography Study
Holmes SE, Hinz R, Conen S, Gregory CJ, Matthews JC, Anton-Rodriguez JM, Gerhard A, Talbot PS. Elevated Translocator Protein in Anterior Cingulate in Major Depression and a Role for Inflammation in Suicidal Thinking: A Positron Emission Tomography Study. Biological Psychiatry 2017, 83: 61-69. PMID: 28939116, DOI: 10.1016/j.biopsych.2017.08.005.Peer-Reviewed Original ResearchConceptsAnterior cingulate cortexMajor depressive episodeMajor depressive disorderPositron emission tomographyTSPO availabilityDepressive episodeControl subjectsDepressive disorderTranslocator proteinPK11195 positron emission tomographySevere major depressive episodeEmission tomographySuicidal thinkingSuicidal thoughtsPrefrontal cortexInvolvement of inflammationPeripheral inflammatory markersPositron emission tomography studyAnti-inflammatory therapyHealthy control subjectsLeast moderate severityMedication-free patientsEmission tomography studiesTSPO-specific radioligandBrains of individuals