Objective: To develop endolymphatic hydrops in both ears of guinea pigs by aldosterone.
Methods: Thirty animals were divided into 3 groups with 10 in each group. Group A received left ears operation following Kimura', with right ears non-operated as control; group B received introperitonal injection of aldosterone (0.1 mg.0.1 kg-1.d-1) for continuous 5 days; group C received introperitonal injection of 0.5 ml 0.9% NS. Five out of group A,B and C were killed 1 month and 2 months later respectively for analysis of blood K+, Ca2+, Na+ and pathological examination of inner ear, heart, lung, brain, liver and kidney.
Results: In group A' moderate to severe endolymphatic hydrops developed in the operated ears during 1 and 2 months. In group B, mild endolymphatic hydrops developed in the both ears during 1 month, and within 2 months it was moderate and severe. No endolymphatic hydrops developed in group C. In contrast to group C, No significant changes could be found in blood analysis of group A, but the concentrations of K+ and Ca2+ were declined, and that of Na+ were increased in group B. The heart, lung, brain, liver, and kidney of all animals were normal.
Conclusions: Aldosterone may induce endolymphatic hydrops in both ears.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Is there a difference in the results of the video head impulse test in patients with a nosological diagnosis of Ménière's Disease and Vestibular Migraine?
Codas
January 2025
Programa Associado de Pós-graduação em Fonoaudiologia (Mestrado) - PPgFon, Universidade Federal do Rio Grande do Norte - UFRN - Natal (RN), Brasil.
Purpose: To compare vestibulo-ocular reflex (VOR) gain values, gain symmetry between the semicircular canals (SCCs), and saccadic parameters in patients with a nosological diagnosis of Ménière's disease (MD) and vestibular migraine (VM).
Methods: Observational, descriptive, cross-sectional, retrospective study, approved by the Research Ethics Committee, under evaluation report number 4.462.
Autoimmune sensorineural hearing loss/Meniere's disease possibly triggered by neurocysticercosis: a case report.
J Med Case Rep
January 2025
Centers for Advanced Ent, Woodbridge, VA, US.
Background: Meniere's disease arises when an abnormal fluid accumulation results in heightened pressure within the inner ear or labyrinth. Its symptoms encompass vertigo, tinnitus, hearing loss, and a sensation of fullness in the ear. Various triggers for Meniere's disease are known, from smoking and alcohol consumption to recent viral illnesses, allergies, and anxiety.
View Article and Find Full Text PDFA rare haplotype of the GJD3 gene segregating in familial Meniere's disease interferes with connexin assembly.
Genome Med
January 2025
Otology & Neurotology Group CTS495, Instituto de Investigación Biosanitario, Ibs.GRANADA, Universidad de Granada, 18071, Granada, Spain.
Background: Familial Meniere's disease (FMD) is a rare polygenic disorder of the inner ear. Mutations in the connexin gene family, which encodes gap junction proteins, can also cause hearing loss, but their role in FMD is largely unknown.
Methods: We retrieved exome sequencing data from 94 individuals in 70 Meniere's disease (MD) families.
Can switching stimulus polarity identify Meniere's disease? A preliminary investigation on ABR.
Acta Otolaryngol
January 2025
School of Audiology and Speech Language Pathology, Bharati Vidyapeeth (Deemed to be University), Pune, India.
Background: Meniere's disease (MD) affects 0.2% to 0.5% of the global population, with regional variations.
View Article and Find Full Text PDFEvaluation of Tumor-Infiltrating Leukocytes in Endolymphatic Sac Tumor.
Laryngoscope
January 2025
Department of Otology and Skull Base Surgery, Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China.
Objective: Endolymphatic sac tumors (ELSTs), as rare low-grade neoplasms, are primarily treated with surgery. This study analyzes the characteristics of tumor-infiltrating leukocytes (TILs) in ELSTs and their relationships with clinical features to explore the potential for immunotherapy in ELSTs.
Methods: Clinical data and tumor specimens of 10 ELSTs patients who underwent surgery were retrieved.
Want 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!