Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1996-11-27
pubmed:abstractText
Destruction of auditory hair cells results in a subsequent loss of auditory neurons. In situ hybridization and neuronal cell culture studies as well as analyses of the inner ears of neurotrophin and neurotrophin receptor gene knockout mice have shown that NT-3 and BDNF mediate both the development and survival of auditory neurons. In this study guinea pigs were exposed to the ototoxic combination of an aminoglycoside antibiotic and a loop diuretic and then received 8 weeks of intracochlear infusion of either NT-3, BDNF or NT-3 + BDNF to determine whether site-specific application of these neurotrophins could prevent the loss of auditory neurons that follows a loss of auditory hair cells. Infusion of either NT-3 or NT-3 + BDNF into the scala tympani resulted in a > 90% survival of auditory neurons while BDNF infusion yielded a 78% survival rate, compared with a 14-24% neuronal survival rate in untreated ototoxin-exposed cochleae. These results show that loss of auditory neurons that occurs subsequent to a loss of auditory hair cells can be prevented by in vivo neurotrophin therapy with either NT-3 or BDNF.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0959-4965
pubmed:author
pubmed:issnType
Print
pubmed:day
22
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
889-94
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
NT-3 and/or BDNF therapy prevents loss of auditory neurons following loss of hair cells.
pubmed:affiliation
Department of Otolaryngology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't