Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2000-12-29
pubmed:abstractText
Cisplatin and gentamicin are two ototoxicants that are supposed to be transported by the paracellar route, i.e. via cellular junctions, to the perilymphatic compartment. This study was initiated to test the hypothesis that susceptive variation of individuals to ototoxic drugs may be explained by variability in transport properties. The transport of radioactive mannitol through the blood-perilymph barrier was correlated in vivo with the acute effect of cisplatin and gentamicin on auditory function. Transport of radioactive mannitol across the blood-perilymph barrier was monitored by sampling of scala vestibuli perilymph at 60 and 120 min after an intravenous infusion of the tracer to nephrectomized Long Evans rats. Counting of hair cell loss was performed in the animals receiving 16 mg/kg body weight cisplatin. The transport of radioactive mannitol across the blood-perilymph barrier did not correlate with the ototoxic effect of cisplatin, evaluated as changes in the auditory-evoked brainstem response thresholds or loss of outer hair cells. The results provide evidence that the barrier function is not involved in the interindividual variability of the ototoxic effect of cisplatin. Furthermore, it can be postulated that neither cisplatin nor gentamicin induce a disruption of endothelial cell junction stability in the inner ear.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0001-6489
pubmed:author
pubmed:issnType
Print
pubmed:volume
120
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
796-803
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Blood-perilymph barrier and ototoxicity: an in vivo study in the rat.
pubmed:affiliation
Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden. goran.laurell@ks.se
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't