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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
17
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pubmed:dateCreated |
1995-4-13
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pubmed:abstractText |
The actions of aluminum on glutamate-activated currents of acutely isolated hippocampal neurones were investigated. N-methyl-D-aspartate (NMDA), alpha-amino-3-hydroxy-5-methylisoxazole-4-proprionic acid (AMPA) and glutamate mediated currents were reduced by 50% in the presence of 1.4 micrograms ml-1 aluminium. Higher concentrations (> or = 2.7 micrograms ml-1) inhibited all currents completely and irreversibly. Additionally, successive application of agonists in the presence of 2.7 micrograms ml-1 aluminium resulted in non-specific membrane currents followed by the loss of the seal resistance. Application of aluminium per se had no influence on resting membrane current or voltage-activated sodium currents. The estimation of the concentration-response relationship of the action of aluminium on NMDA-activated currents revealed a threshold concentration < 0.27 micrograms ml-1. Our data indicate that glutamate receptors are putative sites of action in aluminium neurotoxicity.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0959-4965
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
21
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pubmed:volume |
5
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2329-32
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7533557-Aluminum,
pubmed-meshheading:7533557-Animals,
pubmed-meshheading:7533557-Electric Conductivity,
pubmed-meshheading:7533557-Glutamic Acid,
pubmed-meshheading:7533557-Hippocampus,
pubmed-meshheading:7533557-N-Methylaspartate,
pubmed-meshheading:7533557-Neurons,
pubmed-meshheading:7533557-Osmolar Concentration,
pubmed-meshheading:7533557-Rats,
pubmed-meshheading:7533557-Rats, Wistar,
pubmed-meshheading:7533557-alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid
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pubmed:year |
1994
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pubmed:articleTitle |
Aluminium reduces glutamate-activated currents of rat hippocampal neurones.
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pubmed:affiliation |
Heinrich-Heine-Universität, Düsseldorf, Germany.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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