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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1991-9-18
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pubmed:abstractText |
Retinal pigment epithelium (RPE)-choroid preparations from albino rabbits were sealed in an Ussing type chamber under stabilized conditions for 3 hours. The transepithelial potential was 1.2 +/- 0.08 mV and the transepithelial resistance was 175.2 +/- 9.1 omega.cm2 (mean +/- SE, n = 16). The transport of fluorescein across the isolated rabbit RPE-choroid was studied under short circuit condition and outward (vitreous----choroid) and inward (choroid----vitreous) permeability to fluorescein were determined. The outward permeability was 1.63 +/- 0.20 x 10(-5) cm/sec and inward permeability was 0.44 +/- 0.13 x 10(-5) cm/sec (mean +/- SE, n = 8). The former was 4 times greater than the latter (p less than 0.01). The outward permeability was decreased to 1.02 +/- 0.08 x 10(-5) cm/sec (n = 7), 0.75 +/- 0.11 x 10(-5) cm/sec (n = 5), 0.67 +/- 0.11 x 10(-5) cm/sec (n = 6) by 10(-6) M of ouabain, 10(-5) M of 2,4-dinitrophenol and 10(-4) M of probenecid, respectively. Low temperatures (0.5-1.0 degree C) markedly decreased the outward permeability to 0.05 +/- 0.04 x 10(-5) cm/sec (n = 4, mean +/- SE). These results suggest that active transport plays a role in the outward movement of fluorescein across the rabbit RPE-choroid.
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pubmed:language |
jpn
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0029-0203
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
95
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
434-40
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pubmed:dateRevised |
2011-7-28
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pubmed:meshHeading |
pubmed-meshheading:1872214-Animals,
pubmed-meshheading:1872214-Biological Transport, Active,
pubmed-meshheading:1872214-Choroid,
pubmed-meshheading:1872214-Diffusion Chambers, Culture,
pubmed-meshheading:1872214-Fluoresceins,
pubmed-meshheading:1872214-Pigment Epithelium of Eye,
pubmed-meshheading:1872214-Rabbits
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pubmed:year |
1991
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pubmed:articleTitle |
[Analysis of transport of fluorescein across the isolated retinal pigment epithelium-choroid using an ussing type chamber].
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pubmed:affiliation |
Department of Ophthalmology, University of Tokyo, School of Medicine, Bunkyo-ku, Japan.
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pubmed:publicationType |
Journal Article,
In Vitro,
English Abstract
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