Tengku Siti Hajar Haryuna1, Diana Amellya1, Delfitri Munir1, Tengku Siti Harilza Zubaidah2. 1. Department of Otorhinolaryngology, Faculty of medicine, Universitas Sumatera Utara, Medan, Sumatera Utara, 20155, Indonesia. 2. Department of Ophtalmology, Faculty of medicine, Universitas Sumatera Utara, Medan, Sumatera Utara, 20155, Indonesia.
Abstract
BACKGROUND: Noise-induced hearing loss (NIHL) can cause damage to the cochlea. Curcumin and nuclear factor erythroid 2-related factor 2 (NRF2) are transcription activators that play a crucial role in defence mechanisms against oxidative stress. The aim of this study was to determine the effect of curcuminoid administration on NRF2 expression, in the organ of Corti of cochlea of Rattus norvegicus that were exposed to noise, from the results of the distortion product otoacoustic emission (DPOAE) examination. METHODS: We divided 36 rats into six groups including Group 1 (control); Group 2 (noise exposure without curcuminoid administration); Group 3 (noise exposure+curcuminoid dose 100 mg/day for four days); Group 4 (noise exposure+curcuminoid dose 200 mg/day for four days); Group 5 (curcuminoid dose of 100 mg/day for 14 days followed by two days of noise exposure); Group 6 (curcuminoid dose 200 mg/day for 14 days followed by two days of noise exposure). RESULTS: Following noise exposure in rats, there was an effect/correlation between NRF2 expression, the SNR values obtained from DPOAE and curcuminoid administration. CONCLUSION: There was a correlation between curcuminoid administration, NRF2 expression and DPOAE treatment. Following noise exposure in rats (Rattus norvegicus), SNR values obtained from DPOAE showed improved cochlear function.
BACKGROUND: Noise-induced hearing loss (NIHL) can cause damage to the cochlea. Curcumin and nuclear factor erythroid 2-related factor 2 (NRF2) are transcription activators that play a crucial role in defence mechanisms against oxidative stress. The aim of this study was to determine the effect of curcuminoid administration on NRF2 expression, in the organ of Corti of cochlea of Rattus norvegicus that were exposed to noise, from the results of the distortion product otoacoustic emission (DPOAE) examination. METHODS: We divided 36 rats into six groups including Group 1 (control); Group 2 (noise exposure without curcuminoid administration); Group 3 (noise exposure+curcuminoid dose 100 mg/day for four days); Group 4 (noise exposure+curcuminoid dose 200 mg/day for four days); Group 5 (curcuminoid dose of 100 mg/day for 14 days followed by two days of noise exposure); Group 6 (curcuminoid dose 200 mg/day for 14 days followed by two days of noise exposure). RESULTS: Following noise exposure in rats, there was an effect/correlation between NRF2 expression, the SNR values obtained from DPOAE and curcuminoid administration. CONCLUSION: There was a correlation between curcuminoid administration, NRF2 expression and DPOAE treatment. Following noise exposure in rats (Rattus norvegicus), SNR values obtained from DPOAE showed improved cochlear function.
Authors: Deanna K Meinke; Odile H Clavier; Jesse Norris; Robert Kline-Schoder; Lindsay Allen; Jay C Buckey Journal: Noise Health Date: 2013 Sep-Oct Impact factor: 0.867
Authors: Mathias Basner; Wolfgang Babisch; Adrian Davis; Mark Brink; Charlotte Clark; Sabine Janssen; Stephen Stansfeld Journal: Lancet Date: 2013-10-30 Impact factor: 79.321
Authors: Walter H Moos; Douglas V Faller; Ioannis P Glavas; David N Harpp; Michael H Irwin; Iphigenia Kanara; Carl A Pinkert; Whitney R Powers; Kosta Steliou; Demetrios G Vavvas; Krishna Kodukula Journal: Biores Open Access Date: 2018-07-01