Linked Life Data

1672735

Source:http://linkedlifedata.com/resource/pubmed/id/1672735

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1991-5-6
pubmed:abstractText
The cytosolic calcium concentration [( Ca2+]i) of the isolated outer hair cell of the guinea pig was measured using fluorescence imaging microscopy and the effects of efferent neuroregulators such as acetylcholine, ATP, GABA, substance P, enkephalin, calcitonin gene-related peptide, serotonin, dopamine, norepinephrine, and glutamate were investigated. Among the drugs tested only ATP induced an elevation of the [Ca2+]i of the outer hair cell. In the resting condition, [Ca2+]i averaged 104.5 +/- 31.1 nM (n = 27), while 100 microM ATP significantly increased [Ca2+]i to 146.3 +/- 43.5 nM (n = 19). Superfusion with Ca2(+)-free solution (pCa = 7.5) abolished the increase in [Ca2+]i induced by ATP, suggesting that ATP causes an entry of external Ca2+. The relevance of [Ca2+]i to the inhibitory actions of efferent neuroregulators is discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0301-1569
pubmed:author
pubmed:issnType
Print
pubmed:volume
53
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
78-81
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Effect of neuroregulators on the intracellular calcium level in the outer hair cell isolated from the guinea pig.
pubmed:affiliation
Department of Otolaryngology, Tohoku University School of Medicine, Sendai, Japan.
pubmed:publicationType
Journal Article