PMID: 2093282Jan 1, 1990Paper

The migratory capacity of the external auditory canal epithelium. A critical minireview

Acta Oto-rhino-laryngologica Belgica
D Broekaert

Abstract

The aim of the present paper was to review in detail and in an objective way, the most prominent data concerning the phenomenon of migration on the eardrum and deep on the bony part of the meatus. I present and discuss data obtained along different lines, in different species: e.g. ink dot migration, autoradiographic tracing, perforation studies, morphological and histological observations, tissue culture experiments, theoretical model studies, fetal and postnatal growth, immunohistochemical studies, probing molecular markers. Although the topic remains controversial, more and more it becomes clear that an active migration may occur deep in the stratified epithelia, and that a passive migration or keratin dispersion occurs additionally on the surface. The precise pattern along which the deep migration occurs, may differ in different species. In humans, the pars tensa more readily displays migration than the pars flaccida and the central area of the drum. Especially the inferior region of the annulus fulfils the criteria of a proliferation center stimulating active migration. The umbo region may represent the center of superficially radial dispersion.

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology
C LarssonD Bagger-Sjöbäck
Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology
Akihiro ShinnabeYukiko Iino
Lin chuang er bi yan hou ke za zhi = Journal of clinical otorhinolaryngology
Ruiming XiaLisheng Yu
© 2021 Meta ULC. All rights reserved