α2-adrenoceptor binding in Flinders-sensitive line compared with Flinders-resistant line and Sprague-Dawley rats

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α2-adrenoceptor binding in Flinders-sensitive line compared with Flinders-resistant line and Sprague-Dawley rats. / Lillethorup, Thea Pinholt; Iversen, Peter; Wegener, Gregers; Doudet, Doris Jeanne Marie; Landau, Anne Marlene.

In: Acta Neuropsychiatrica (Print), 23.04.2015, p. 1-8.

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@article{867c78f5d28244119708bc3d04ad1489,
title = "α2-adrenoceptor binding in Flinders-sensitive line compared with Flinders-resistant line and Sprague-Dawley rats",
abstract = "OBJECTIVES: Disturbances in the noradrenergic system, including alterations in the densities of α2-adrenoceptors, are posited to be involved in the pathophysiology of depression. In this study, we investigate the binding of α2-adrenoceptors in regions relevant to depression in an animal model of depression.METHODS: Using in vitro autoradiography techniques and the selective α2-ligand, [3H]RX 821002, we investigated the density of α2-adrenoceptors in female Flinders-sensitive line (FSL) rats, a validated model of depression, and in two traditional control groups - female Flinders-resistant line (FRL) and Sprague-Dawley (SD) rats.RESULTS: The α2-adrenoceptor density was increased in most regions of the FSL rat brain when compared with SD rats (10% across regions). Moreover, the α2-adrenoceptor density was further increased in the FRL rats compared with both FSL (10% across regions) and SD rats (24% across regions).CONCLUSIONS: The increase in α2-adrenoceptor binding in cortical regions in the FSL strain compared with the SD control strain is in accord with α2-adrenoceptor post-mortem binding data in suicide victims with untreated major depression. However, the differences in binding observed in the two control groups were unexpected and suggest the need for further studies in a larger cohort of animals of both sexes.",
author = "Lillethorup, {Thea Pinholt} and Peter Iversen and Gregers Wegener and Doudet, {Doris Jeanne Marie} and Landau, {Anne Marlene}",
year = "2015",
month = apr,
day = "23",
doi = "10.1017/neu.2015.24",
language = "English",
pages = "1--8",
journal = "Acta Neuropsychiatrica",
issn = "0924-2708",
publisher = "Cambridge University Press",

}

RIS

TY - JOUR

T1 - α2-adrenoceptor binding in Flinders-sensitive line compared with Flinders-resistant line and Sprague-Dawley rats

AU - Lillethorup, Thea Pinholt

AU - Iversen, Peter

AU - Wegener, Gregers

AU - Doudet, Doris Jeanne Marie

AU - Landau, Anne Marlene

PY - 2015/4/23

Y1 - 2015/4/23

N2 - OBJECTIVES: Disturbances in the noradrenergic system, including alterations in the densities of α2-adrenoceptors, are posited to be involved in the pathophysiology of depression. In this study, we investigate the binding of α2-adrenoceptors in regions relevant to depression in an animal model of depression.METHODS: Using in vitro autoradiography techniques and the selective α2-ligand, [3H]RX 821002, we investigated the density of α2-adrenoceptors in female Flinders-sensitive line (FSL) rats, a validated model of depression, and in two traditional control groups - female Flinders-resistant line (FRL) and Sprague-Dawley (SD) rats.RESULTS: The α2-adrenoceptor density was increased in most regions of the FSL rat brain when compared with SD rats (10% across regions). Moreover, the α2-adrenoceptor density was further increased in the FRL rats compared with both FSL (10% across regions) and SD rats (24% across regions).CONCLUSIONS: The increase in α2-adrenoceptor binding in cortical regions in the FSL strain compared with the SD control strain is in accord with α2-adrenoceptor post-mortem binding data in suicide victims with untreated major depression. However, the differences in binding observed in the two control groups were unexpected and suggest the need for further studies in a larger cohort of animals of both sexes.

AB - OBJECTIVES: Disturbances in the noradrenergic system, including alterations in the densities of α2-adrenoceptors, are posited to be involved in the pathophysiology of depression. In this study, we investigate the binding of α2-adrenoceptors in regions relevant to depression in an animal model of depression.METHODS: Using in vitro autoradiography techniques and the selective α2-ligand, [3H]RX 821002, we investigated the density of α2-adrenoceptors in female Flinders-sensitive line (FSL) rats, a validated model of depression, and in two traditional control groups - female Flinders-resistant line (FRL) and Sprague-Dawley (SD) rats.RESULTS: The α2-adrenoceptor density was increased in most regions of the FSL rat brain when compared with SD rats (10% across regions). Moreover, the α2-adrenoceptor density was further increased in the FRL rats compared with both FSL (10% across regions) and SD rats (24% across regions).CONCLUSIONS: The increase in α2-adrenoceptor binding in cortical regions in the FSL strain compared with the SD control strain is in accord with α2-adrenoceptor post-mortem binding data in suicide victims with untreated major depression. However, the differences in binding observed in the two control groups were unexpected and suggest the need for further studies in a larger cohort of animals of both sexes.

U2 - 10.1017/neu.2015.24

DO - 10.1017/neu.2015.24

M3 - Journal article

C2 - 25903810

SP - 1

EP - 8

JO - Acta Neuropsychiatrica

JF - Acta Neuropsychiatrica

SN - 0924-2708

ER -