PMID: 16625871Apr 22, 2006Paper

Changes in transient evoked otoacoustic emissions contralateral suppression in infants

Pró-fono : revista de atualização científica
Alessandra Spada Durante, Renata M M Carvallo

Abstract

It has been suggested that the function of the medial olivocochlear system (MOCS) can be evaluated by the suppression effect of the transient evoked otoacoustic emission (TEOAE). The competitive noise has an inhibitory effect on the functioning of the outer hair-cell, reducing the level of otoacoustic emissions. Despite the fact that there is no postnatal growth of the cochlea, middle ear growth and auditory processing development continue after birth. To analyze age-related changes of MOCS using the TEOAE suppression in healthy infants. 25 full-term infants with no risk factors for hearing loss were evaluated in two moments: at birth and at the age of six months. At both ages TEOAE were recorded in the "Quickscreen" mode, nonlinear stimulation at 78dB peSPL, for both ears, with and without contralateral noise presented at 60dB SPL. The data analyses, using ANOVA, revealed significant contralateral suppression of otoacoustic emissions in both groups, but the TEOAE levels and the amount of TEOAE contralateral suppression were smaller at six-month of age when compared to the neonatal period (p < 0.01). The TEOAE suppression effect for neonatals was 2.81dB (+/- 0.19dB) and at the age of six months was 1.41dB (+/- 0.29dB). The amou...Continue Reading

References

Sep 7, 1979·Brain Research·W B Warr, J J Guinan
Jan 1, 1991·Acta Oto-laryngologica·H SatoH Takahashi
May 1, 1988·Acta Oto-laryngologica·M Lavigne-Rebillard, R Pujol
Jan 1, 1987·Acta Oto-laryngologica. Supplementum·A WrightM Pauler
Jul 1, 1986·The Annals of Otology, Rhinology, and Laryngology·T L Eby, J B Nadol
Dec 6, 1996·Neuroscience Letters·T MorletL Collet
Jan 7, 1998·Clinical Otolaryngology and Allied Sciences·J C HillL M Luxon
Jan 1, 1997·Journal of Basic and Clinical Physiology and Pharmacology·M NewmarkJ Attias
May 12, 2001·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·G De CeulaerP J Govaerts
Jun 16, 2001·Journal of Music Therapy·J W Cassidy, K M Ditty
Jul 16, 2002·Hearing Research·W H A M Mulders, D Robertson
Aug 6, 2002·International Journal of Audiology·Alessandra Spada Durante, Renta Mota Mamede Carvalho
Sep 27, 2002·British Medical Bulletin·David T Kemp
Jun 12, 2003·Journal of the Association for Research in Otolaryngology : JARO·John J GuinanVered Aharonson
Jun 18, 2003·Pediatric Clinics of North America·Charles I BerlinLinda J Hood
Feb 26, 2004·Audiology & Neuro-otology·Chava MuchnikMinka Hildesheimer

❮ Previous
Next ❯

Citations

Apr 24, 2010·Ciência & saúde coletiva·Valeriana de Castro Guimarães, Maria Alves Barbosa
Aug 12, 2016·CoDAS·Natália Oliveira de JesusMarisa Frasson de Azevedo

❮ Previous
Next ❯

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.