Cargando…

Comparison of Cannabinoid CB(1) Receptor Binding in Adolescent and Adult Rats: A Positron Emission Tomography Study Using [(18)F]MK-9470

Despite the important role of cannabinoid CB(1) receptors (CB(1)R) in brain development, little is known about their status during adolescence, a critical period for both the development of psychosis and for initiation to substance abuse. In the present study, we assessed the ontogeny of CB(1)R in a...

Descripción completa

Detalles Bibliográficos
Autores principales: Verdurand, Mathieu, Nguyen, Vu, Stark, Daniela, Zahra, David, Gregoire, Marie-Claude, Greguric, Ivan, Zavitsanou, Katerina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3236487/
https://www.ncbi.nlm.nih.gov/pubmed/22187642
http://dx.doi.org/10.1155/2011/548123
_version_ 1782218754641362944
author Verdurand, Mathieu
Nguyen, Vu
Stark, Daniela
Zahra, David
Gregoire, Marie-Claude
Greguric, Ivan
Zavitsanou, Katerina
author_facet Verdurand, Mathieu
Nguyen, Vu
Stark, Daniela
Zahra, David
Gregoire, Marie-Claude
Greguric, Ivan
Zavitsanou, Katerina
author_sort Verdurand, Mathieu
collection PubMed
description Despite the important role of cannabinoid CB(1) receptors (CB(1)R) in brain development, little is known about their status during adolescence, a critical period for both the development of psychosis and for initiation to substance abuse. In the present study, we assessed the ontogeny of CB(1)R in adolescent and adult rats in vivo using positron emission tomography with [(18)F]MK-9470. Analysis of covariance (ANCOVA) to control for body weight that would potentially influence [(18)F]MK-9470 values between the two groups revealed a main effect of age (F(1,109)=5.0, P = 0.02) on [(18)F]MK-9470 absolute binding (calculated as percentage of injected dose) with adult estimated marginal means being higher compared to adolescents amongst 11 brain regions. This finding was confirmed using in vitro autoradiography with [(3)H]CP55,940 (F(10,99)=140.1, P < 0.0001). This ontogenetic pattern, suggesting increase of CB(1)R during the transition from adolescence to adulthood, is the opposite of most other neuroreceptor systems undergoing pruning during this period.
format Online
Article
Text
id pubmed-3236487
institution National Center for Biotechnology Information
language English
publishDate 2011
publisher Hindawi Publishing Corporation
record_format MEDLINE/PubMed
spelling pubmed-32364872011-12-20 Comparison of Cannabinoid CB(1) Receptor Binding in Adolescent and Adult Rats: A Positron Emission Tomography Study Using [(18)F]MK-9470 Verdurand, Mathieu Nguyen, Vu Stark, Daniela Zahra, David Gregoire, Marie-Claude Greguric, Ivan Zavitsanou, Katerina Int J Mol Imaging Research Article Despite the important role of cannabinoid CB(1) receptors (CB(1)R) in brain development, little is known about their status during adolescence, a critical period for both the development of psychosis and for initiation to substance abuse. In the present study, we assessed the ontogeny of CB(1)R in adolescent and adult rats in vivo using positron emission tomography with [(18)F]MK-9470. Analysis of covariance (ANCOVA) to control for body weight that would potentially influence [(18)F]MK-9470 values between the two groups revealed a main effect of age (F(1,109)=5.0, P = 0.02) on [(18)F]MK-9470 absolute binding (calculated as percentage of injected dose) with adult estimated marginal means being higher compared to adolescents amongst 11 brain regions. This finding was confirmed using in vitro autoradiography with [(3)H]CP55,940 (F(10,99)=140.1, P < 0.0001). This ontogenetic pattern, suggesting increase of CB(1)R during the transition from adolescence to adulthood, is the opposite of most other neuroreceptor systems undergoing pruning during this period. Hindawi Publishing Corporation 2011 2011-12-11 /pmc/articles/PMC3236487/ /pubmed/22187642 http://dx.doi.org/10.1155/2011/548123 Text en Copyright © 2011 Mathieu Verdurand et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Verdurand, Mathieu
Nguyen, Vu
Stark, Daniela
Zahra, David
Gregoire, Marie-Claude
Greguric, Ivan
Zavitsanou, Katerina
Comparison of Cannabinoid CB(1) Receptor Binding in Adolescent and Adult Rats: A Positron Emission Tomography Study Using [(18)F]MK-9470
title Comparison of Cannabinoid CB(1) Receptor Binding in Adolescent and Adult Rats: A Positron Emission Tomography Study Using [(18)F]MK-9470
title_full Comparison of Cannabinoid CB(1) Receptor Binding in Adolescent and Adult Rats: A Positron Emission Tomography Study Using [(18)F]MK-9470
title_fullStr Comparison of Cannabinoid CB(1) Receptor Binding in Adolescent and Adult Rats: A Positron Emission Tomography Study Using [(18)F]MK-9470
title_full_unstemmed Comparison of Cannabinoid CB(1) Receptor Binding in Adolescent and Adult Rats: A Positron Emission Tomography Study Using [(18)F]MK-9470
title_short Comparison of Cannabinoid CB(1) Receptor Binding in Adolescent and Adult Rats: A Positron Emission Tomography Study Using [(18)F]MK-9470
title_sort comparison of cannabinoid cb(1) receptor binding in adolescent and adult rats: a positron emission tomography study using [(18)f]mk-9470
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3236487/
https://www.ncbi.nlm.nih.gov/pubmed/22187642
http://dx.doi.org/10.1155/2011/548123
work_keys_str_mv AT verdurandmathieu comparisonofcannabinoidcb1receptorbindinginadolescentandadultratsapositronemissiontomographystudyusing18fmk9470
AT nguyenvu comparisonofcannabinoidcb1receptorbindinginadolescentandadultratsapositronemissiontomographystudyusing18fmk9470
AT starkdaniela comparisonofcannabinoidcb1receptorbindinginadolescentandadultratsapositronemissiontomographystudyusing18fmk9470
AT zahradavid comparisonofcannabinoidcb1receptorbindinginadolescentandadultratsapositronemissiontomographystudyusing18fmk9470
AT gregoiremarieclaude comparisonofcannabinoidcb1receptorbindinginadolescentandadultratsapositronemissiontomographystudyusing18fmk9470
AT greguricivan comparisonofcannabinoidcb1receptorbindinginadolescentandadultratsapositronemissiontomographystudyusing18fmk9470
AT zavitsanoukaterina comparisonofcannabinoidcb1receptorbindinginadolescentandadultratsapositronemissiontomographystudyusing18fmk9470