A comprehensive study of oxidative stress in sudden hearing loss - PubMed (original) (raw)

Review

. 2017 Mar;274(3):1301-1308.

doi: 10.1007/s00405-016-4301-1. Epub 2016 Sep 10.

Affiliations

Review

A comprehensive study of oxidative stress in sudden hearing loss

Fatih Gul et al. Eur Arch Otorhinolaryngol. 2017 Mar.

Abstract

Little is known about the association between idiopathic sudden sensorineural hearing loss (ISSNHL) and oxidative stress. We investigated changes in a wide range of oxidants and antioxidants to create a comprehensive picture of oxidative imbalance. In the peripheral blood of 50 ISSNHL patients and 50 healthy subjects, total oxidant status (TOS), total antioxidant status (TAS), paraoxonase (PON), thiol/disulphide levels were measured. Moreover, a global oxidative stress index, reflecting both oxidative and antioxidant counterparts, was also calculated. One-way analysis between oxidative markers and severity of hearing loss were evaluated. The ISSNHL patients showed significantly higher TOS levels than controls (6.02 ± 3.17 vs. 4.5 ± 2.22; p = 0.018). The oxidative index was also significantly higher in patients than controls (0.39 ± 0.19 vs. 0.3 ± 0.14; p = 0.035). TAS, PON, native thiol, and total thiol were not altered. There was no statistical significance between oxidative markers and severity of hearing loss. The binary logistic regression model revealed that disulphide and TOS were associated with ISSNHL. There are alterations in a wide array of oxidants and antioxidants, with balance shifting toward increased oxidative stress in ISSNHL. Our findings may suggest endothelial dysfunction in ISSNHL etiopathogenesis.

Keywords: Oxidative stress; Paraoxonase; Sudden sensorineural hearing loss; Thiol/disulphide homeostasis; Total antioxidant status; Total oxidant status.

PubMed Disclaimer

Similar articles

Cited by

References

    1. Clin Biochem. 2014 Dec;47(18):326-32 - PubMed
    1. Hear Res. 2005 Sep;207(1-2):35-42 - PubMed
    1. Free Radic Biol Med. 2002 Mar 1;32(5):377-85 - PubMed
    1. ORL J Otorhinolaryngol Relat Spec. 1999 Mar-Apr;61(2):63-70 - PubMed
    1. Hear Res. 1996 Nov 1;101(1-2):14-22 - PubMed

Publication types

MeSH terms

Substances

LinkOut - more resources