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@ARTICLE{PalomeroGallagher:10804,
author = {Palomero-Gallagher, N. and Schleicher, A. and Zilles, K.
and Löscher, W.},
title = {{T}he circling ci2 rat mutant revisited: receptor
architecture of the motor cortex},
journal = {Neuroscience},
volume = {170},
issn = {0306-4522},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {PreJuSER-10804},
pages = {542 - 550},
year = {2010},
note = {This study was supported by the DFG (Lo 274/8-3). The
authors thank Prof. H.-J. Hedrich (Institute for Laboratory
Animal Science, Hannover Medical School, Germany) for
providing the ci2 mutants and LEW/Ztm controls. They also
wish to thank A. Borner, M. Cremer. S. Krause and S. Wilms
for their excellent technical assistance.},
abstract = {Circling behaviour of the ci2 rat mutant has been
associated with an abnormal laterality concerning
nigrostriatal and vestibular dopamine content and densities
of several neurotransmitter receptors. Since not only
subcortical, but also cortical activity subserve behavioural
asymmetry, we applied quantitative in vitro receptor
autoradiography to determine the densities of twenty
neurotransmitter receptors in three areas of the motor
cortex (Fr1, Fr2, Fr3) of the left and right hemispheres in
adult male circling mutant rats (ci2/ci2), non-circling
littermates (ci2/+) and aged-matched rats from the
background strain (LEW/Ztm, wild type). Rats had previously
been monitored for motor behaviour and swimming abilities.
Wild type and ci2/+ rats did not differ from the behavioural
point of view, whereas ci2/ci2 animals were characterized by
pronounced lateralized circling behaviour and were not able
to perform the swimming test correctly. Left Fr2 of wild
type rats contained significantly lower NMDA receptor
densities than its right counterpart. No interhemispheric
differences were found in the motor cortex of ci2/+ or
ci2/ci2 animals. All three areas of wild type rats contain
higher GABA(A) and adenosine A(1) receptor densities than
those of ci2/+ and ci2/ci2 animals, respectively. Serotonin
5-HT(2) receptor densities were significantly lower in the
motor cortex of ci2/ci2 animals than in that of their
heterozygous littermates. Thus, since the ci2 rat mutant
presents a wide range of behavioural and neurochemical
lateralization anomalies, in addition to representing a
model of Usher syndrome type 1, it may prove useful to
understand the mechanisms underlying abnormal rotational
behaviour and its relevance as a model of disturbances in
cerebral asymmetry and their consequences.},
keywords = {Animals / Autoradiography / Functional Laterality: genetics
/ Heterozygote / Male / Motor Activity: genetics / Motor
Cortex: metabolism / Rats / Rats, Inbred Lew / Rats, Mutant
Strains / Receptors, Neurotransmitter: metabolism / Swimming
/ Receptors, Neurotransmitter (NLM Chemicals) / J (WoSType)},
cin = {INM-2 / JARA-BRAIN},
ddc = {610},
cid = {I:(DE-Juel1)INM-2-20090406 / $I:(DE-82)080010_20140620$},
pnm = {Funktion und Dysfunktion des Nervensystems (FUEK409) /
89571 - Connectivity and Activity (POF2-89571)},
pid = {G:(DE-Juel1)FUEK409 / G:(DE-HGF)POF2-89571},
shelfmark = {Neurosciences},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:20674682},
UT = {WOS:000281939100016},
doi = {10.1016/j.neuroscience.2010.07.043},
url = {https://juser.fz-juelich.de/record/10804},
}