Hearing loss is one of the most common sensory disorders worldwide,affecting approximately 466 million people,including 34 million children[1].Genetic mutations accounts for approximately 60%of inherited hearing loss ...Hearing loss is one of the most common sensory disorders worldwide,affecting approximately 466 million people,including 34 million children[1].Genetic mutations accounts for approximately 60%of inherited hearing loss cases[2,3].These genetic changes result in a wide variety of clinical manifestations,ranging from nonsyndromic hearing loss(NSHL)to over 400 syndromes involving hearing loss and from mild adult-onset hearing loss to profound congenital deafness,covering the entire spectrum of Mendelian inheritance.展开更多
Oxidative stress plays an important role in the pathogenesis of aminoglycoside-induced hearing loss and represents a promising target for treatment.We tested the potential effect of apigenin,a natural flavonoid with a...Oxidative stress plays an important role in the pathogenesis of aminoglycoside-induced hearing loss and represents a promising target for treatment.We tested the potential effect of apigenin,a natural flavonoid with anticancer,anti-inflammatory,and antioxidant activities,on neomycin-induced ototoxicity in cochlear hair cells in vitro.Results showed that apigenin significantly ameliorated the loss of hair cells and the accumulation of reactive oxygen species upon neomycin injury.Further evidence suggested that the nuclear factor erythroid 2-related factor 2(Nrf2)signaling pathway was activated by apigenin treatment.Disruption of the Nrf2 axis abolished the effects of apigenin on the alleviation of oxidative stress and subsequent apoptosis of hair cells.This study provided evidence of the protective effect of apigenin on cochlear hair cells and its underlying mechanism.展开更多
Hidden hearing loss(HHL),an auditory dysfunction that has gained much recent attention,has the hallmarks of speech discrimination and intelligibility deficits with normal or near-normal hearing thresholds.The patholog...Hidden hearing loss(HHL),an auditory dysfunction that has gained much recent attention,has the hallmarks of speech discrimination and intelligibility deficits with normal or near-normal hearing thresholds.The pathological mechanisms of HHL are complicated and are not yet fully understood.HHL can be resulted from disorders of the central nervous system such as auditory cortex,and/or pathological changes of inner ear.Thus far,2 pathological phenomena,synaptopathy and auditory nerve demyelination,have been reported as underlying causes of otogenic HHL.Here,we review the clinical and physiological characteristics of HHL as well as the molecular pathological mechanisms of otogenic HHL and aim to allude to potential therapy targets for clinical applications in the future.展开更多
基金supported by the STI2030-Major Projects(2022ZD0205400)the National Natural Science Foundation of China(82192861,81922018,82271170,and 82101218)+3 种基金the Foundation from Science and Technology Commission of Shanghai Municipality(22140900800 and 20JC1419500)the Foundation from Shanghai Municipal Health Commission(20234Z0007)the China Postdoctoral Science Foundation(2021M700824 and 2022T150133)the Shanghai Super Postdoctoral Incentive Program.
文摘Hearing loss is one of the most common sensory disorders worldwide,affecting approximately 466 million people,including 34 million children[1].Genetic mutations accounts for approximately 60%of inherited hearing loss cases[2,3].These genetic changes result in a wide variety of clinical manifestations,ranging from nonsyndromic hearing loss(NSHL)to over 400 syndromes involving hearing loss and from mild adult-onset hearing loss to profound congenital deafness,covering the entire spectrum of Mendelian inheritance.
基金supported by the National Key R&D Program of China(No.2017YFA0103900)the National Natural Science Foundation of China(Nos.81771010 and 81570911)+1 种基金the Nature Science Foundation(No.17ZR1404600)from Shanghai Science and Technology Committee.
文摘Oxidative stress plays an important role in the pathogenesis of aminoglycoside-induced hearing loss and represents a promising target for treatment.We tested the potential effect of apigenin,a natural flavonoid with anticancer,anti-inflammatory,and antioxidant activities,on neomycin-induced ototoxicity in cochlear hair cells in vitro.Results showed that apigenin significantly ameliorated the loss of hair cells and the accumulation of reactive oxygen species upon neomycin injury.Further evidence suggested that the nuclear factor erythroid 2-related factor 2(Nrf2)signaling pathway was activated by apigenin treatment.Disruption of the Nrf2 axis abolished the effects of apigenin on the alleviation of oxidative stress and subsequent apoptosis of hair cells.This study provided evidence of the protective effect of apigenin on cochlear hair cells and its underlying mechanism.
基金the National Natural Science Foundation of China(No.81771010,81570911)the Nature Science Foundation(No.17ZR1404600)from Shanghai Science and Technology Committee,China.
文摘Hidden hearing loss(HHL),an auditory dysfunction that has gained much recent attention,has the hallmarks of speech discrimination and intelligibility deficits with normal or near-normal hearing thresholds.The pathological mechanisms of HHL are complicated and are not yet fully understood.HHL can be resulted from disorders of the central nervous system such as auditory cortex,and/or pathological changes of inner ear.Thus far,2 pathological phenomena,synaptopathy and auditory nerve demyelination,have been reported as underlying causes of otogenic HHL.Here,we review the clinical and physiological characteristics of HHL as well as the molecular pathological mechanisms of otogenic HHL and aim to allude to potential therapy targets for clinical applications in the future.
