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EnglishIn the visual cortex, brain-derived neurotrophic factor expression is modulated through glutamate receptors, including the N-methyl-D-aspartate glutamate receptor. It has been proposed that the N-methyl-D-aspartate glutamate receptor subunit composition itself might be regulated by brain-derived neurotrophic factor. Here, we investigated the co-expression of the neurotrophin-4/brain-derived neurotrophic factor receptor TrkB with the N-methyl-D-aspartate glutamate receptor subunits NR1-C1, NR2A and NR2B, on postnatal days 10 and 22 and in the adult rat primary visual cortex. At both postnatal days 10 and 22, TrkB is co-expressed in all cortical layers with the studied N-methyl-D-aspartate glutamate receptor subunits. In the adult, in layers IV-V, co-expression is restricted to a subpopulation of neurons, while in layers II-III, VI nearly all neurons co-express TrkB with NR1-C1, NR2A and NR2B. We conclude that in layers IV-V, the co-expression of TrkB with subunits NR2B and NR2A is developmentally regulated. (C) 1999 IBRO. Published by Elsevier Science Ltd.
| Titolo: | Co-expression of TrkB and the N-methyl-D-aspartate receptor subunits NR1-C1, NR2A and NR2B in the rat visual cortex |
| Autori: | |
| Data di pubblicazione: | 1999 |
| Rivista: | |
| Abstract: | In the visual cortex, brain-derived neurotrophic factor expression is modulated through glutamate receptors, including the N-methyl-D-aspartate glutamate receptor. It has been proposed that the N-methyl-D-aspartate glutamate receptor subunit composition itself might be regulated by brain-derived neurotrophic factor. Here, we investigated the co-expression of the neurotrophin-4/brain-derived neurotrophic factor receptor TrkB with the N-methyl-D-aspartate glutamate receptor subunits NR1-C1, NR2A and NR2B, on postnatal days 10 and 22 and in the adult rat primary visual cortex. At both postnatal days 10 and 22, TrkB is co-expressed in all cortical layers with the studied N-methyl-D-aspartate glutamate receptor subunits. In the adult, in layers IV-V, co-expression is restricted to a subpopulation of neurons, while in layers II-III, VI nearly all neurons co-express TrkB with NR1-C1, NR2A and NR2B. We conclude that in layers IV-V, the co-expression of TrkB with subunits NR2B and NR2A is developmentally regulated. (C) 1999 IBRO. Published by Elsevier Science Ltd. |
| Handle: | http://hdl.handle.net/11697/10738 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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