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Contralateral Suppression of DPOAEs in Mice after Ouabain Treatment
Joint Authors
Li, Huawei
Chen, Yan
Zhang, Yanping
Li, Jieying
Zhang, Tianyu
Dai, Peidong
Zeng, Shan
Lai, Chuijin
Zhang, Liting
Shi, Yuxuan
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-10
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Medial olivocochlear (MOC) efferent feedback is suggested to protect the ear from acoustic injury and to increase its ability to discriminate sounds against a noisy background.
We investigated whether type II spiral ganglion neurons participate in the contralateral suppression of the MOC reflex.
The application of ouabain to the round window of the mouse cochlea selectively induced the apoptosis of the type I spiral ganglion neurons, left the peripherin-immunopositive type II spiral ganglion neurons intact, and did not affect outer hairs, as evidenced by the maintenance of the distorted product otoacoustic emissions (DPOAEs).
With the ouabain treatment, the threshold of the auditory brainstem response increased significantly and the amplitude of wave I decreased significantly in the ouabain-treated ears, consistent with the loss of type I neurons.
Contralateral suppression was measured as reduction in the amplitude of the 2f1−f2 DPOAEs when noise was presented to the opposite ear.
Despite the loss of all the type I spiral ganglion neurons, virtually, the amplitude of the contralateral suppression was not significantly different from the control when the suppressor noise was delivered to the treated cochlea.
These results are consistent with the type II spiral ganglion neurons providing the sensory input driving contralateral suppression of the MOC reflex.
American Psychological Association (APA)
Li, Jieying& Chen, Yan& Zeng, Shan& Lai, Chuijin& Zhang, Yanping& Zhang, Liting…[et al.]. 2018. Contralateral Suppression of DPOAEs in Mice after Ouabain Treatment. Neural Plasticity،Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1210296
Modern Language Association (MLA)
Li, Jieying…[et al.]. Contralateral Suppression of DPOAEs in Mice after Ouabain Treatment. Neural Plasticity No. 2018 (2018), pp.1-8.
https://search.emarefa.net/detail/BIM-1210296
American Medical Association (AMA)
Li, Jieying& Chen, Yan& Zeng, Shan& Lai, Chuijin& Zhang, Yanping& Zhang, Liting…[et al.]. Contralateral Suppression of DPOAEs in Mice after Ouabain Treatment. Neural Plasticity. 2018. Vol. 2018, no. 2018, pp.1-8.
https://search.emarefa.net/detail/BIM-1210296
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1210296