Light- and electron microscopic studies of recent years have definitely concluded that the epithelium of the middle ear is a modified respiratory epithelium with ciliated and secretory cells including goblet cells. Goblet cells are secretory cells completely filled with secretory granules. Secretory cells and ciliated cells are both derived from the basal cell. The subepithelial layer which consists of loose connective tissue is a structure of just as great importance as the epithelial layer. It is still not clear whether the dark granulated cell is the site of production of the serous middle ear effusion or whether it merely represents an immature stage of the mucigen-producing cell.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
[Association between occupational exposure to pesticides and ototoxicity in farmers of Pontal do Paranapanema-SP, Brazil].
Cien Saude Colet
January 2025
Departamento de Química, Universidade do Oeste Paulista. São Paulo SP Brasil.
The scope of this study was to assess the ototoxic effects and general health of farmers exposed to pesticides in the Pontal do Paranapanema region, SP, Brazil. Participants of both sexes aged 18-40, 40-60 and >60 years were allocated into two groups: Non-Exposed Group (NEG) and Occupationally Exposed Group (OEG). A questionnaire of exposure and health, meatoscopy, pure tone audiometry, logoaudiometry and immittanciometry were assessed.
View Article and Find Full Text PDFEffects of rapid maxillary expansion on auditory thresholds and middle ear functioning.
Codas
January 2025
Instituto de Psicologia, Serviço Social, Saúde e Comunicação Humana, Universidade Federal do Rio Grande do Sul - UFRGS - Porto Alegre (RS), Brasil.
Purpose: To ascertain whether Rapid Maxillary Expansion (RME) elicits effects on the functioning of the middle ear and air-bone gaps in children and adolescents.
Methods: Single-arm clinical trial, with data collection at four time points: before initiating Rapid Maxillary Expansion (RME) (T0), upon completion of RME (T1), three months post-RME completion (T2), and six months post-RME procedure (T3). The audiological assessment, conducted at all four time points, comprised otoscopy, pure tone and speech audiometry, tympanometry, and acoustic reflex investigation.
An analysis of the current status of geriatric oral disease treatment-a dental institutions-based perspective.
Front Public Health
January 2025
Party Committee Office, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China.
Background: This study aimed to investigate and analyze the current status of oral disease treatment among the older adult in Guangxi Zhuang Autonomous Region, while also assessing the continuing medical education (CME) needs of dental institution personnel regarding oral diseases in this population.
Methods: Convenience sampling was used to investigate the oral disease treatment among older adults and to assess CME needs of dental institution personnel regarding oral diseases in this population across various oral medical and health institutions in Guangxi.
Results: A total of 754 valid questionnaires were collected, of which 70.
Spectrum of Otological Manifestations in Treacher Collins Syndrome: A Case Series of 9 Patients.
J Comput Assist Tomogr
January 2025
Department of Diagnostic Radiology and Nuclear Medicine, Rush University Medical Center, Chicago, IL.
Treacher Collins syndrome (TCS) is an uncommon congenital disorder predominantly involving craniofacial, orbital, and otological structures. The various ear malformations seen in 9 patients with TCS are described. TCS predominantly affects the external and middle ear structures, with inner ear structures being relatively spared, not unexpected given the dual embryological origin of the human ear.
View Article and Find Full Text PDFPostauricular feather foreign body in an infant.
BMJ Case Rep
January 2025
Ear, Nose and Throat, James Cook University Hospital, Middlesbrough, UK.
A male infant presented with reduced oral intake, low-grade fever and postauricular erythema. Clinical examination revealed a soft, tender swelling posteroinferior to the mastoid tip with a dull tympanic membrane on otoscopy. Cross-sectional imaging did not show any evidence of middle ear infection or mastoiditis.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!