Inner ear morphogenesis requires tightly regulated epigenetic and transcriptional control of gene expression. CHD7, an ATP-dependent chromodomain helicase DNA-binding protein, and SOX2, an SRY-related HMG box pioneer transcription factor, are known to contribute to vestibular and auditory system development, but their genetic interactions in the ear have not been explored. Here, we analyzed inner ear development and the transcriptional regulatory landscapes in mice with variable dosages of and/or . We show that combined haploinsufficiency for and results in reduced otic cell proliferation, severe malformations of semicircular canals, and shortened cochleae with ectopic hair cells. Examination of mice with conditional, inducible loss by reveals a critical period (~E9.5) of susceptibility in the inner ear to combined and loss. Data from genome-wide RNA-sequencing and CUT&Tag studies in the otocyst show that CHD7 regulates expression and acts early in a gene regulatory network to control expression of key otic patterning genes, including and . CHD7 and SOX2 directly bind independently and cooperatively at transcription start sites and enhancers to regulate otic progenitor cell gene expression. Together, our findings reveal essential roles for and in early inner ear development and may be applicable for syndromic and other forms of hearing or balance disorders.
Background: Meniere's disease (MD) is an idiopathic chronic inner ear disease that seriously impacts patients' physical and mental health. Medications may be effective for a proportion of patients, and additional effective treatments are still needed. This review aimed to evaluate the efficacy of acupuncture treatment for MD.
In a previous study [H. Shintaku et al., Sensors and Actuators A: Physical 158 (2010): 183-192], an artificially developed auditory sensor device showed a frequency selectivity in the range from 6.
Purpose: We aimed to characterize and further understand CSF circulation and outflow of rabbits. To our knowledge, there is no research on contrast material-enhanced MR cisternography (CE-MRC) with T1 and T2 mapping in the rabbit model using a clinical 3-T MR unit without a stereotaxic frame.
Materials And Methods: Twenty-one rabbits were included in the study.
Stapes surgery is the gold standard for managing otosclerosis. It has become increasingly appreciated to perform endoscopic ear surgery worldwide as the field of endoscopy expands. In basic terms, a stapes surgery intends to restore ossicular mobility and therefore improve sound energy transduction into the inner ear, thereby improving communication and sound amplification and bringing hearing levels back to acceptable levels.
In sensory perception, stochastic resonance (SR) refers to the application of noise to enhance information transfer, allowing for the sensing of lower-level stimuli. Previously, subjective-assessments identified SR in vestibular perceptual thresholds, assessed using a standard two alternative (i.e.
