PMID- 28248600 OWN - NLM STAT- MEDLINE DCOM- 20170731 LR - 20181231 IS - 1097-6817 (Electronic) IS - 0194-5998 (Linking) VI - 156 IP - 3 DP - 2017 Mar TI - Mitochondria-Targeted Antioxidant Mitoquinone Reduces Cisplatin-Induced Ototoxicity in Guinea Pigs. PG - 543-548 LID - 10.1177/0194599816678381 [doi] AB - Objective To determine if mitoquinone (MitoQ) attenuates cisplatin-induced hearing loss in guinea pigs. Study Design Prospective and controlled animal study. Setting Academic, tertiary medical center. Subjects and Methods Guinea pigs were injected subcutaneously with either 5 mg/kg MitoQ (n = 9) or normal saline (control, n = 9) for 7 days and 1 hour before receiving a single dose of 10 mg/kg cisplatin. Auditory brainstem response thresholds were measured before MitoQ or saline administration and 3 to 4 days after cisplatin administration. Results Auditory brainstem response threshold shifts after cisplatin treatment were smaller by 28 to 47 dB in guinea pigs injected with MitoQ compared with those in the control group at all tested frequencies (4, 8, 16, and 24 kHz, P = .0002 to .04). Scanning electron microscopy of cochlear hair cells showed less outer hair cell loss and damage in the MitoQ group. Conclusion MitoQ reduced cisplatin-induced hearing loss in guinea pigs. MitoQ appears worthy of further investigation as a means of preventing cisplatin ototoxicity in humans. FAU - Tate, Alan D AU - Tate AD AD - 1 Department of Otolaryngology-Head and Neck Surgery, University of Florida, Gainesville, Florida, USA. FAU - Antonelli, Patrick J AU - Antonelli PJ AD - 1 Department of Otolaryngology-Head and Neck Surgery, University of Florida, Gainesville, Florida, USA. FAU - Hannabass, Kyle R AU - Hannabass KR AD - 2 University of California Los Angeles Medical Center, Los Angeles, California, USA. FAU - Dirain, Carolyn O AU - Dirain CO AD - 1 Department of Otolaryngology-Head and Neck Surgery, University of Florida, Gainesville, Florida, USA. LA - eng GR - R03 DC013659/DC/NIDCD NIH HHS/United States PT - Journal Article DEP - 20161116 PL - England TA - Otolaryngol Head Neck Surg JT - Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery JID - 8508176 RN - 0 (Antineoplastic Agents) RN - 0 (Antioxidants) RN - 0 (Organophosphorus Compounds) RN - 1339-63-5 (Ubiquinone) RN - 47BYS17IY0 (mitoquinone) RN - Q20Q21Q62J (Cisplatin) SB - IM MH - Animals MH - Antineoplastic Agents/*toxicity MH - Antioxidants/*therapeutic use MH - Cisplatin/*toxicity MH - Guinea Pigs MH - Hearing Loss/*chemically induced/*prevention & control MH - Male MH - Mitochondria/drug effects MH - Organophosphorus Compounds/pharmacology/*therapeutic use MH - Ubiquinone/*analogs & derivatives/pharmacology/therapeutic use OTO - NOTNLM OT - cisplatin OT - guinea pigs OT - hearing loss OT - mitoquinone OT - ototoxicity EDAT- 2017/03/02 06:00 MHDA- 2017/08/02 06:00 CRDT- 2017/03/02 06:00 PHST- 2017/03/02 06:00 [entrez] PHST- 2017/03/02 06:00 [pubmed] PHST- 2017/08/02 06:00 [medline] AID - 10.1177/0194599816678381 [doi] PST - ppublish SO - Otolaryngol Head Neck Surg. 2017 Mar;156(3):543-548. doi: 10.1177/0194599816678381. Epub 2016 Nov 16.