Results 21 to 30 of about 160,956 (317)

Microarray analysis and functional prediction of differentially expressed circular RNAs in acquired middle ear cholesteatoma

open access: yesBioMedical Engineering OnLine, 2021
Background Middle ear cholesteatoma is characterized by hyper-proliferation of keratinocytes. Circular RNA (circRNA) plays an essential role in the pathogenesis of many proliferative diseases.
Shumin Xie   +4 more
doaj   +1 more source

Development of a physiological model of human middle ear epithelium

open access: yesLaryngoscope Investigative Otolaryngology, 2021
Introduction Otitis media is an umbrella term for middle ear inflammation; ranging from acute infection to chronic mucosal disease. It is a leading cause of antimicrobial therapy prescriptions and surgery in children.
Michael William Mather   +14 more
doaj   +1 more source

Mammalian middle ear mechanics: A review

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
The middle ear is part of the ear in all terrestrial vertebrates. It provides an interface between two media, air and fluid. How does it work? In mammals, the middle ear is traditionally described as increasing gain due to Helmholtz’s hydraulic analogy ...
Maialen Ugarteburu   +7 more
doaj   +1 more source

Morphological aspects of tympanic bulla after lateral osteotomy in cats [PDF]

open access: yesActa Cirúrgica Brasileira, 2008
PURPOSE: To evaluate tympanic bulla healing after experimental lateral osteotomy in cats. METHODS: Twenty adult cats were submitted to unilateral lateral bulla osteotomy and divided into two groups: cats of B1 group (n=10) were euthanized at 8 weeks and ...
Adelina Maria da Silva   +4 more
doaj   +1 more source

Myringotomy in dogs: Contamination rate from the external ear canal - a pilot study

open access: yesVeterinary and Animal Science, 2020
Myringotomy for sample collection from the middle ear cavity for cytology and bacterial culture is considered a routine method to diagnose otitis media in dogs.
E. Reinbacher   +4 more
doaj   +1 more source

An Ameloblastoma in the Middle Ear

open access: yesThe Journal of International Advanced Otology, 2019
Abstract   An ameloblastoma is a locally aggressive odontogenic tumour that commonly develops from the odontogenic epithelium within the jawbone. Here we present for the first time a case of a rare primary ameloblastoma in the middle ear cavity, along with some consideration of its treatment and a new classification.
Seiji Hosokawa   +5 more
openaire   +3 more sources

MIDDLE-EAR SCLEROSIS, OR ATROPHIC MIDDLE-EAR CATARRH. [PDF]

open access: yesJournal of the American Medical Association, 1908
This condition depends on trophic changes and, in contrast to a multitude of clinical forms that have been described under various names, it has a comparatively simple pathology. The clinical appearances vary with the location and degree of the pathologic change and with the structure and tissue affected.
openaire   +2 more sources

Assessment of the cartilage transplant thickness after removing of the tympanic membrane retraction pocket (finiteelement modelling)

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2021
The retraction pocket emergence of the tympanic membrane (eardrum) leads to the sound conduction disorder of the middle ear. Surgical removal of fixed retraction pockets leads to perforations.
Sergei M. Bosiakov   +4 more
doaj   +1 more source

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   +1 more source

Immunohistochemical localization of d‐β‐aspartic acid in congenital and acquired middle ear cholesteatoma

open access: yesLaryngoscope Investigative Otolaryngology, 2022
Objective/Hypothesis Middle ear cholesteatoma is characterized by abnormal growth of the keratinizing squamous epithelium of the temporal bone. d‐β‐aspartic acid is the major isomer of d‐aspartic acid found in elderly tissue.
Shiori Kitaya   +12 more
doaj   +1 more source

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