Results 131 to 140 of about 2,602,328 (411)

Eustachian tube dysfunction in sleep apnea patients and improvements afforded by continuous positive airway pressure therapy

open access: yesBrazilian Journal of Otorhinolaryngology, 2021
Introduction: Upper airway resistance may accompany eustachian dysfunction and alter middle ear pressure in patients with obstructive sleep apnea syndrome.
Serkan Cayir   +3 more
doaj  

Nonlinear dynamics of the mammalian inner ear [PDF]

open access: yesarXiv, 2015
A simple nonlinear transmission-line model of the cochlea with longitudinal coupling is introduced that can reproduce Basilar membrane response and neural tuning in the chinchilla. It is found that the middle ear has little effect on cochlear resonances, and hence conclude that the theory of coherent reflections is not applicable to the model.
arxiv  

Multi-color reflectance imaging of middle ear pathology in vivo [PDF]

open access: yes, 2015
Otoscopic examination using white-light illumination has remained virtually unchanged for well over a century. However, the limited contrast of white-light otoscopy constrains the ability to make accurate assessment of middle ear pathology and is subject
Barman, Ishan   +7 more
core   +1 more source

Lycium barbarum Glycopeptide Alleviates Neomycin‐Induced Ototoxicity by Inhibiting Tryptophan Hydroxylase‐Mediated Serotonin Biosynthesis

open access: yesAdvanced Science, EarlyView.
Lycium barbarum glycopeptide (LBGP), which is further extracted from Lycium barbarum polysaccharides, exhibits significant protective effects against neomycin‐induced hearing dysfunction including oxidative stress in cochlea and loss of key cells in cochlea.
Yunhao Wu   +12 more
wiley   +1 more source

A Case of Inverted Papilloma Originating from the Middle Ear and Review of the Literature

open access: yesCase Reports in Otolaryngology, 2019
Inverted papilloma (IP) with malignant transformation is rarely seen in the middle ear. Up to now, there have been 16 primary middle ear IPs reported in the English literature.
Eray Bayindir   +4 more
doaj   +1 more source

Molecular Screening Strategy to Identify a Non-invasive Delivery Mechanism for the Treatment of Middle Ear Disorders

open access: yesFrontiers in Medicine, 2020
Middle ear ailments include a broad range of pathological conditions. Otitis media is the leading middle ear disease of childhood, which incurs significant health care resources in developed countries and, in developing countries, causes significant ...
Arwa Kurabi   +7 more
doaj   +1 more source

Advances in Microfluidic Cochlea‐On‐A‐Chip

open access: yesAdvanced Science, EarlyView.
This review systematically examines diverse cell sources for inner ear organoids and outlines stepwise induction protocols. Furthermore, it discusses current applications and prospective developments of cochlea‐on‐a‐chip technologies in areas such as deafness modeling, mechanistic studies, and drug evaluation, with particular focus on gene‐therapy drug
Tian Shen   +10 more
wiley   +1 more source

Syringocystadenoma papilliferum in the middle ear

open access: yesThe Egyptian Journal of Otolaryngology, 2017
Syringocystadenoma papilliferum is a rare adnexal tumor of controversial origin that often occurs as a solitary tumor derived from apocrine and eccrine glands.
Wael A. Alzamil
doaj   +1 more source

Middle Ear Cavity Morphology Is Consistent with an Aquatic Origin for Testudines

open access: yesPLoS ONE, 2013
The position of testudines in vertebrate phylogeny is being re-evaluated. At present, testudine morphological and molecular data conflict when reconstructing phylogenetic relationships.
Katie L. Willis   +3 more
semanticscholar   +1 more source

Simultaneous Measurement of Middle-Ear Input Impedance and Forward/Reverse Transmission in Cat [PDF]

open access: yes, 2004
Reported here is a technique for measuring forward and reverse middle-ear transmission that exploits distortion-product otoacoustic emissions (DPOAEs) to drive the middle ear in reverse without opening the inner ear. The technique allows measurement of
Shera, Christopher A., Voss, Susan E.
core   +1 more source

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