The effect of intratympanic oxytocin treatment on rats exposed to acoustic trauma


Akin Ocal F., Kesici G., GÜRGEN S. G., Ocal R., Erbek S.

Journal of Laryngology and Otology, vol.133, no.6, pp.466-476, 2019 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 133 Issue: 6
  • Publication Date: 2019
  • Doi Number: 10.1017/s0022215119001014
  • Journal Name: Journal of Laryngology and Otology
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.466-476
  • Keywords: Acoustic Trauma, Auditory Brainstem Responses, Distortion Product Otoacoustic Emission, Hearing Loss
  • Manisa Celal Bayar University Affiliated: Yes

Abstract

Objective To investigate whether oxytocin can prevent ototoxicity related to acoustic trauma.Methods Twenty-eight rats were divided into four groups: Noise (group 1), control (group 2), noise plus oxytocin (group 3), and oxytocin (group 4). Intratympanic oxytocin was administered on days 1, 2, 4, 6, 8 and 10 in groups 3 and 4. Groups 1 and 3 were exposed to acoustic trauma. Distortion product otoacoustic emission and auditory brainstem response testing were performed in all groups.Results In group 1, auditory brainstem response thresholds increased significantly after acoustic trauma. In group 3, auditory brainstem response thresholds increased significantly on day 1 after acoustic trauma, but there were no significant differences between thresholds at baseline and on the 7th and 21st days. In group 1, significant differences were observed between distortion product otoacoustic emission signal-to-noise ratios measured before and on days 1, 7 and 21 after acoustic trauma. In group 3, no significant differences were observed between the distortion product otoacoustic emission signal-to-noise ratios measured before and on days 7 and 21 after acoustic trauma.Conclusion Oxytocin had a therapeutic effect on rats exposed to acoustic trauma in this experiment.