当前位置： SCI文献检索 > NEUROSCIENCE LETTERS期刊下所有文献 > Deficiency of Vlgr1 resulted in deafness and susceptibility to audiogenic seizures while the degree of hearing impairment was not correlated with seizure severity in C57BL/6- and 129-backcrossed lines of Vlgr1 knockout mice.

Deficiency of Vlgr1 resulted in deafness and susceptibility to audiogenic seizures while the degree of hearing impairment was not correlated with seizure severity in C57BL/6- and 129-backcrossed lines of Vlgr1 knockout mice.

Abstract：

:Vlgr1 (very large G-protein coupled receptor 1) knockout mice against hybrid backgrounds of the 129/Ola and C57BL/6 mouse strains show hearing deficit and high susceptibility to audiogenic seizures. The present study examined how hearing impairment and susceptibility to audiogenic seizures in Vlgr1-deficient mice change according to the genetic background of 129 and C57BL/6 mouse strains, which are popular strains for genetic studies. C57BL/6 mice have normal hearing ability during adolescence and are resistant to audiogenic seizures, and the 129S1/SvImJ substrain does not have a severe hearing deficit or convulsions as a result of audiogenic seizures; therefore, these strains were chosen for the present backcross study. C57BL/6-backcrossed Vlgr1 knockout mice and 129 (129S1/SvImJ)-backcrossed Vlgr1 knockout mice were established and their phenotypes investigated. Vlgr1 knockout mice showed hearing loss and high susceptibility to audiogenic seizures regardless of their genetic backgrounds. 129-backcrossed Vlgr1 knockout mice exhibited 10-20dB more severe hearing loss than C57BL/6-backcrossed Vlgr1 knockout mice. In general, 129-backcrossed Vlgr1 knockout mice showed a higher incidence of wild running than C57BL/6-backcrossed Vlgr1 knockout mice, and this incidence became smaller as they matured. However, C57BL/6-backcrossed Vlgr1 knockout mice showed a significantly higher mortality rate as a result of auditory stimulation 3 weeks postnatally than 129-backcrossed mice.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Yagi H,Noguchi Y,Kitamura K,Sato M

doi

10.1016/j.neulet.2009.06.012

subject

Has Abstract

pub_date

2009-09-18 00:00:00

pages

190-5

issue

2

eissn

0304-3940

issn

1872-7972

pii

S0304-3940(09)00806-4

journal_volume

461

pub_type

杂志文章

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