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- B Bobula, K Tokarski, and G Hess.
- Department of Physiology, Institute of Pharmacology, Polish Academy of Sciences, Smetna 12, 31-343 Krakow, Poland.
- Neuroscience. 2003 Jan 1; 120 (3): 765769765-9.
AbstractThe effects of repeated administration of a tricyclic antidepressant, imipramine, and a selective serotonin reuptake blocker, citalopram, for 14 days (10 mg/kg p.o., twice daily), were studied ex vivo in rat frontal cortex slices prepared 48 h after last dose of the drug. Treatment with both antidepressants resulted in a decrease in the amplitude of field potentials evoked in layer II/III by stimulation of underlying sites in layer V. The amplitude ratio of pharmacologically isolated N-methyl-D-aspartic acid (NMDA) to alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)/kainate receptor-mediated components of the field potential was reduced. These results indicate that chronic treatment with imipramine or citalopram results in an attenuation of glutamatergic synaptic transmission in the cerebral cortex.
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