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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1995-1-6
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pubmed:abstractText |
Properties of the inhibition of Na(+)-glucose cotransport by Cd2+ in mouse kidney cortical cells have been determined. In no case was any inhibition observed before 3 hr. The extent of inhibition was dependent upon both the concentration of Cd2+ and the length of exposure. Kinetic studies showed that metallothionein mRNA induction by Cd2+ was initiated within 1 hr after incubation with Cd2+ began and peaked by 3-6 hr. Metallothionein protein increased more slowly, beginning at 3 hr and continuing for at least 9 hr. The protein had both Cd2+ and Zn2+ bound to it throughout this period. Nevertheless, a pool of nonmetallothionein Cd2+ appeared after 3 hr, coinciding with the onset of inhibition of Na(+)-glucose cotransport, and increased over the next 9 hr. Pretreatment of cells with Zn2+ protected them from the effects of Cd2+ on Na(+)-glucose cotransport. It delayed the onset of inhibition of transport as well as the extent of inhibition. Detailed analysis of the distribution of Cd2+ and Zn2+ in the soluble fraction of these cells showed that the concentration of non-metallothionein bound Cd2+ was not suppressed by the presence of Zn-metallothionein after the onset of exposure to Cd2+. Incubation of cells with larger concentration of Zn2+ and Cu2+ also inhibited Na(+)-glucose cotransport.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Cadmium,
http://linkedlifedata.com/resource/pubmed/chemical/Copper,
http://linkedlifedata.com/resource/pubmed/chemical/Glucose,
http://linkedlifedata.com/resource/pubmed/chemical/Metallothionein,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger,
http://linkedlifedata.com/resource/pubmed/chemical/Sodium,
http://linkedlifedata.com/resource/pubmed/chemical/Zinc
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0041-008X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
129
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
177-87
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:7992308-Animals,
pubmed-meshheading:7992308-Biological Transport, Active,
pubmed-meshheading:7992308-Cadmium,
pubmed-meshheading:7992308-Cells, Cultured,
pubmed-meshheading:7992308-Copper,
pubmed-meshheading:7992308-Glucose,
pubmed-meshheading:7992308-Kidney Cortex,
pubmed-meshheading:7992308-Kidney Tubules, Proximal,
pubmed-meshheading:7992308-Kinetics,
pubmed-meshheading:7992308-Male,
pubmed-meshheading:7992308-Metallothionein,
pubmed-meshheading:7992308-Mice,
pubmed-meshheading:7992308-Mice, Inbred C57BL,
pubmed-meshheading:7992308-RNA, Messenger,
pubmed-meshheading:7992308-Sodium,
pubmed-meshheading:7992308-Zinc
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pubmed:year |
1994
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pubmed:articleTitle |
Inhibition of Na(+)-glucose cotransport in kidney cortical cells by cadmium and copper: protection by zinc.
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pubmed:affiliation |
Department of Nephrology, Veterans Administration Medical Center, Milwaukee, Wisconsin 53295.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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