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Hayes DJ, Duncan NW, Wiebking C, Pietruska K, Qin P, Lang S, Gagnon J, BIng PG, Verhaeghe J, Kostikov AP, Schirrmacher R, Reader AJ, Doyon J, Rainville P, Northoff G. GABAA receptors predict aversion-related brain responses: an fMRI-PET investigation in healthy humans. Neuropsychopharmacology 2013; 38:1438-50. [PMID: 23389691 PMCID: PMC3682137 DOI: 10.1038/npp.2013.40] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The perception of aversive stimuli is essential for human survival and depends largely on environmental context. Although aversive brain processing has been shown to involve the sensorimotor cortex, the neural and biochemical mechanisms underlying the interaction between two independent aversive cues are unclear. Based on previous work indicating ventromedial prefrontal cortex (vmPFC) involvement in the mediation of context-dependent emotional effects, we hypothesized a central role for the vmPFC in modulating sensorimotor cortex activity using a GABAergic mechanism during an aversive-aversive stimulus interaction. This approach revealed differential activations within the aversion-related network (eg, sensorimotor cortex, midcingulate, and insula) for the aversive-aversive, when compared with the aversive-neutral, interaction. Individual differences in sensorimotor cortex signal changes during the aversive-aversive interaction were predicted by GABAA receptors in both vmPFC and sensorimotor cortex. Together, these results demonstrate the central role of GABA in mediating context-dependent effects in aversion-related processing.
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Affiliation(s)
- Dave J Hayes
- Mind, Brain Imaging and Neuroethics, Institute of Mental Health Research, Royal Ottawa Health Care Group, University of Ottawa, Ottawa, ON, Canada.
| | - Niall W Duncan
- Mind, Brain Imaging and Neuroethics, Institute of Mental Health Research, Royal Ottawa Health Care Group, University of Ottawa, Ottawa, ON, Canada,Department of Biology, University of Carleton, Ottawa, ON, Canada
| | - Christine Wiebking
- Mind, Brain Imaging and Neuroethics, Institute of Mental Health Research, Royal Ottawa Health Care Group, University of Ottawa, Ottawa, ON, Canada,Department of Biology, Freie Universität, Berlin, Germany
| | - Karin Pietruska
- Faculté de médecine dentaire, Université de Montréal, Pavillon Paul G. Desmarais, Montréal, QC, Canada
| | - Pengmin Qin
- Mind, Brain Imaging and Neuroethics, Institute of Mental Health Research, Royal Ottawa Health Care Group, University of Ottawa, Ottawa, ON, Canada
| | - Stefan Lang
- Mind, Brain Imaging and Neuroethics, Institute of Mental Health Research, Royal Ottawa Health Care Group, University of Ottawa, Ottawa, ON, Canada
| | - Jean Gagnon
- Centre de réadaptation Lucie-Bruneau, Université de Montréal, Montréal, QC, Canada
| | - Paul Gravel BIng
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University Montreal, Montréal, QC, Canada
| | - Jeroen Verhaeghe
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University Montreal, Montréal, QC, Canada
| | - Alexey P Kostikov
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University Montreal, Montréal, QC, Canada
| | - Ralf Schirrmacher
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University Montreal, Montréal, QC, Canada
| | - Andrew J Reader
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University Montreal, Montréal, QC, Canada
| | - Julien Doyon
- Functional Neuroimaging Unit, Department of Psychology, Université de Montréal, Montréal, QC, Canada
| | - Pierre Rainville
- Faculté de médecine dentaire, Université de Montréal, Pavillon Paul G. Desmarais, Montréal, QC, Canada,Functional Neuroimaging Unit, Department of Psychology, Université de Montréal, Montréal, QC, Canada
| | - Georg Northoff
- Mind, Brain Imaging and Neuroethics, Institute of Mental Health Research, Royal Ottawa Health Care Group, University of Ottawa, Ottawa, ON, Canada
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Barrett JE, Bergman J. Peter B. Dews and pharmacological studies on behavior. J Pharmacol Exp Ther 2008; 326:683-90. [PMID: 18544675 DOI: 10.1124/jpet.108.139261] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The publications by Peter B. Dews of a series of five articles entitled "Studies on Behavior", beginning in 1955 and ending in 1959, were contributions of extraordinary significance in laying a foundation for the emergence of the discipline of behavioral pharmacology. The series of articles were rigorous in their approach, dramatic in terms of the results, and provocative in their implications. Published at the near half-century mark of the founding of the American Society for Pharmacological and Experimental Therapeutics, it is appropriate to now provide a Centennial Perspective on the impact of these studies over 50 years following their publication and to comment on the way in which they helped to influence the directions in which this discipline has evolved.
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Affiliation(s)
- James E Barrett
- Department of Pharmacology and Physiology, Drexel University College of Medicine, 245 N. 15 Street, Mail Stop 488, Room 8213, Philadelphia, PA 19102-1192, USA.
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Cratty MS, Birkle DL. N-methyl-D-aspartate (NMDA)-mediated corticotropin-releasing factor (CRF) release in cultured rat amygdala neurons. Peptides 1999; 20:93-100. [PMID: 10098629 DOI: 10.1016/s0196-9781(98)00147-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Corticotropin-releasing factor (CRF) plays an important role in the activation of centrally mediated responses to stress. The amygdala, a limbic structure involved in the stress response, has a significant number of CRF cell bodies and CRF receptors. Activation of glutamatergic projections to the amygdala has been implicated in the stress response. Few studies have evaluated neurotransmitter-stimulated CRF release in the amygdala. We measured the effects of glutamate (0.1-1000 microM) and N-methyl-D-aspartate (NMDA, 0.1-1000 microM) on CRF release from the amygdala using primary neuronal cultures from embryonic rat brains (E18-19). Experiments were performed after the cultures grew for 17-20 days. CRF was measured using radioimmunoassay. The excitatory amino acid neurotransmitters, glutamate and NMDA, stimulated CRF release in a concentration-dependent manner. The apparent EC50 values for glutamate and NMDA were 17.5 microM and 12 microM, respectively. Consistent with a NMDA receptor-driven event, glutamate-stimulated CRF release was blocked by the NMDA antagonist, 2-amino-5-phosphonovaleric acid (AP-5, 1-100 microM) and antagonized by the addition of 1.2 mM MgCl2 to the incubation medium. These results implicate an inhibition of CRF release in the amygdala as a possible mechanism for the reported anxiolytic effects of NMDA antagonists.
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Affiliation(s)
- M S Cratty
- Department of Pharmacology and Toxicology, West Virginia University, Robert C. Byrd Health Sciences Center, Morgantown 26506, USA
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