2004
Increased Brain GABA Concentrations Following Acute Administration of a Selective Serotonin Reuptake Inhibitor
Bhagwagar Z, Wylezinska M, Taylor M, Jezzard P, Matthews P, Cowen P. Increased Brain GABA Concentrations Following Acute Administration of a Selective Serotonin Reuptake Inhibitor. American Journal Of Psychiatry 2004, 161: 368-370. PMID: 14754790, DOI: 10.1176/appi.ajp.161.2.368.Peer-Reviewed Original ResearchConceptsGamma-aminobutyric acidBrain GABA concentrationsAcute administrationGABA concentrationSelective serotonin reuptake inhibitor citalopramSelective serotonin reuptake inhibitorsSerotonin reuptake inhibitor citalopramCortical gamma-aminobutyric acidActions of SSRIsGABA/creatine ratiosReuptake inhibitor citalopramSerotonin reuptake inhibitorsGABA neuronsSSRI treatmentReuptake inhibitorsIntravenous citalopramDepressed patientsCreatine ratioHealthy volunteersCortical levelOccipital cortexCrossover designMean increaseMagnetic resonance spectroscopyMood improvement
2003
Lack of effect of a single dose of hydrocortisone on serotonin1A receptors in recovered depressed patients measured by positron emission tomography with [11C]WAY-100635
Bhagwagar Z, Montgomery A, Grasby P, Cowen P. Lack of effect of a single dose of hydrocortisone on serotonin1A receptors in recovered depressed patients measured by positron emission tomography with [11C]WAY-100635. Biological Psychiatry 2003, 54: 890-895. PMID: 14573316, DOI: 10.1016/s0006-3223(03)00466-9.Peer-Reviewed Original ResearchConceptsReceptor BPMajor depressionPositron emission tomographySerotonin-1A receptor bindingEmission tomographyPositron emission tomography scanAcute major depressionEmission tomography scanCertain brain areasElevated cortisol levelsLack of effectCortisol hypersecretionAcute administrationSingle doseHydrocortisone treatmentDepressed patientsTomography scanHealthy volunteersBrain areasCrossover designCortisol levelsSerotonin1A receptorsMale subjectsFemale subjectsPatients