ArticleBrazilian journal of otorhinolaryngology
Protective effect of creatine on amikacin-induced ototoxicity.
Article in Brazilian journal of otorhinolaryngology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed, 3 citations in OpenAlex.
- Development of Tinnitus and Hyperacusis in a Mouse Model of Tobramycin Cochleotoxicity.Frontiers in molecular neuroscience · 2021Article
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6 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
introductionAminoglycosides are widely known for their ototoxic side effects. Nevertheless, they are potent antibiotics used in the treatment of life-threatening conditions because of the current concern for antibiotic resistance. We hypothesized that creatine supplements which are believed to improve mitochondrial antioxidant defense system and maintain optimal energy homeostasis may improve the ototoxic side effects.
objectiveThis study aimed to investigate the protective effects of creatine monohydrate against ototoxicity induced by amikacin in rats in an experimental animal model, using distortion product otoacoustic emissions and auditory brainstem response.
methodsTwenty healthy rats were assigned to four groups (5 rats in each): the control group, the creatine monohydrate group, the amikacin group and the amikacin+creatine monohydrate group. The creatine monohydrate group received creatine at a dose of 2g/kg once daily via gastric gavage for 21 days. The amikacin group received amikacin at a dose of 600mg/kg by intramuscular injections once daily for 21 days. The amikacin+creatine monohydrate group received intramuscular injections of amikacin (600mg/kg) once daily for 21 days and creatine monohydrate (2g/kg) once daily via gastric gavage for 21 days. The control group received nothing. The distortion product otoacoustic emissions and auditory brainstem response measurements were performed on all rats on days 0, 7, 21.
resultsRegarding auditory brainstem response values, a significant increase in the auditory threshold was observed in the amikacin group on day 21 (p< 0.001). The amikacin+creatine monohydrate group showed significantly lower levels of auditory brainstem response auditory thresholds on day 21 in comparison to the amikacin group (p< 0.001). Additionally, the control group and the amikacin+creatine monohydrate group did not differ significantly with respect to auditory brainstem response thresholds on treatment day 21 (p> 0.05). When we compare distortion product otoacoustic emissions values, there was no significant difference between the amikacin and amikacin+creatine monohydrate groups on day 7 (p> 0.05), However significantly greater distortion product otoacoustic emissions values were observed in the amikacin+creatine monohydrate group on day 21 compared to the amikacin group (p< 0.001).
conclusionOur findings demonstrate that creatine treatment protects against amikacin ototoxicity when given at a sufficient dose and for an adequate time period.
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