Plastic reorganization of hippocampal synapses resulted from pharmacological blockade of type 1 cannabinoid receptors

Endogenous cannabinoid system plays an important physiologicalrole in brain functioning, being related to regulation of neuromediatorprocesses and mechanisms of neuroplasticity.Cannabinoid receptors of type 1 (CB1) represent one of the keyelements of this system and convenient object for various exp...

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Main Authors: L. E. Frumkina, M. Yu. Bobrov, A. A. Lyzhin, E. L. Andrianova, S. K. Koroleva, N. A. Bobrova, L. G. Khaspekov
Format: Article
Language:English
Published: Research Center of Neurology 2007-06-01
Series:Анналы клинической и экспериментальной неврологии
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Online Access:https://annaly-nevrologii.com/journal/pathID/article/viewFile/437/333
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author L. E. Frumkina
M. Yu. Bobrov
A. A. Lyzhin
E. L. Andrianova
S. K. Koroleva
N. A. Bobrova
L. G. Khaspekov
author_facet L. E. Frumkina
M. Yu. Bobrov
A. A. Lyzhin
E. L. Andrianova
S. K. Koroleva
N. A. Bobrova
L. G. Khaspekov
author_sort L. E. Frumkina
collection DOAJ
description Endogenous cannabinoid system plays an important physiologicalrole in brain functioning, being related to regulation of neuromediatorprocesses and mechanisms of neuroplasticity.Cannabinoid receptors of type 1 (CB1) represent one of the keyelements of this system and convenient object for various experimentaleffects. We showed plastic reorganization of synapses inhippocampal CA1 stratum radiatum in vitro resulted from pharmacologicalblockade of CB1. The ultrastructural features of thisreorganization are the formation of numerous perforated contactswith elongated synaptic membranes of modified configuration,spatial synaptic rearrangement, and the appearance ofatypical synaptic connections. The obtained results suggest thatinvolvement of CB1 in modulation of synaptic transmission isone of the mechanisms which ensure the stable morphofunctionalstate of synapse and promote its integrity in disturbancesof neurotransmission regulation.
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spelling doaj.art-0d8f799af4f04fd88d148d379f06b2622022-12-22T02:36:12ZengResearch Center of NeurologyАнналы клинической и экспериментальной неврологии2075-54732409-25332007-06-0112172110.17816/psaic437332Plastic reorganization of hippocampal synapses resulted from pharmacological blockade of type 1 cannabinoid receptorsL. E. Frumkina0M. Yu. Bobrov1A. A. Lyzhin2E. L. Andrianova3S. K. Koroleva4N. A. Bobrova5L. G. Khaspekov6Research Center of NeurologyShemyakin–Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Medical Sciences, MoscowResearch Center of NeurologyShemyakin–Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Medical Sciences, MoscowResearch Center of NeurologyRussian State Medical University, MoscowResearch Center of NeurologyEndogenous cannabinoid system plays an important physiologicalrole in brain functioning, being related to regulation of neuromediatorprocesses and mechanisms of neuroplasticity.Cannabinoid receptors of type 1 (CB1) represent one of the keyelements of this system and convenient object for various experimentaleffects. We showed plastic reorganization of synapses inhippocampal CA1 stratum radiatum in vitro resulted from pharmacologicalblockade of CB1. The ultrastructural features of thisreorganization are the formation of numerous perforated contactswith elongated synaptic membranes of modified configuration,spatial synaptic rearrangement, and the appearance ofatypical synaptic connections. The obtained results suggest thatinvolvement of CB1 in modulation of synaptic transmission isone of the mechanisms which ensure the stable morphofunctionalstate of synapse and promote its integrity in disturbancesof neurotransmission regulation.https://annaly-nevrologii.com/journal/pathID/article/viewFile/437/333hippocampustissue culturecannabinoid receptorssynaptic regulationplasticityglutamateneurotoxicity
spellingShingle L. E. Frumkina
M. Yu. Bobrov
A. A. Lyzhin
E. L. Andrianova
S. K. Koroleva
N. A. Bobrova
L. G. Khaspekov
Plastic reorganization of hippocampal synapses resulted from pharmacological blockade of type 1 cannabinoid receptors
Анналы клинической и экспериментальной неврологии
hippocampus
tissue culture
cannabinoid receptors
synaptic regulation
plasticity
glutamate
neurotoxicity
title Plastic reorganization of hippocampal synapses resulted from pharmacological blockade of type 1 cannabinoid receptors
title_full Plastic reorganization of hippocampal synapses resulted from pharmacological blockade of type 1 cannabinoid receptors
title_fullStr Plastic reorganization of hippocampal synapses resulted from pharmacological blockade of type 1 cannabinoid receptors
title_full_unstemmed Plastic reorganization of hippocampal synapses resulted from pharmacological blockade of type 1 cannabinoid receptors
title_short Plastic reorganization of hippocampal synapses resulted from pharmacological blockade of type 1 cannabinoid receptors
title_sort plastic reorganization of hippocampal synapses resulted from pharmacological blockade of type 1 cannabinoid receptors
topic hippocampus
tissue culture
cannabinoid receptors
synaptic regulation
plasticity
glutamate
neurotoxicity
url https://annaly-nevrologii.com/journal/pathID/article/viewFile/437/333
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