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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6523
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pubmed:dateCreated |
1995-5-17
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pubmed:abstractText |
In typical physiological solutions, CO2 is in equilibrium with HCO3- and H+ (CO2 + H2O<==>HCO3- +H+). Because one cannot independently alter CO2 and HCO3- concentrations and pH, it is impossible to distinguish between the effects of CO2 and HCO3- on physiological processes. Here we describe a continuous-flow, rapid-mixing approach for generating out-of-equilibrium CO2/HCO3- solutions with a physiological pH and CO2 (but little HCO3-), or pH and HCO3- (but little CO2). We have exploited these out-of-equilibrium solutions to introduce HCO3- exclusively to either the outside or inside of a squid giant axon, and verify the presence of a new K/HCO3 cotransporter. The out-of-equilibrium approach could be useful in a variety of applications for independently controlling CO2 and HCO3- concentrations and pH.
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pubmed:commentsCorrections | |
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 |
Apr
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pubmed:issn |
0028-0836
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
13
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pubmed:volume |
374
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
636-9
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pubmed:dateRevised |
2005-11-17
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pubmed:meshHeading |
pubmed-meshheading:7715702-Animals,
pubmed-meshheading:7715702-Axons,
pubmed-meshheading:7715702-Bicarbonates,
pubmed-meshheading:7715702-Carbon Dioxide,
pubmed-meshheading:7715702-Carrier Proteins,
pubmed-meshheading:7715702-Decapodiformes,
pubmed-meshheading:7715702-Hydrogen-Ion Concentration,
pubmed-meshheading:7715702-Solutions
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pubmed:year |
1995
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pubmed:articleTitle |
Out-of-equilibrium CO2/HCO3- solutions and their use in characterizing a new K/HCO3 cotransporter.
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pubmed:affiliation |
Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, Connecticut 06510, USA.
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pubmed:publicationType |
Journal Article
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