| pubmed-article:15728388 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:15728388 | lifeskim:mentions | umls-concept:C0022646 | lld:lifeskim |
| pubmed-article:15728388 | lifeskim:mentions | umls-concept:C0022677 | lld:lifeskim |
| pubmed-article:15728388 | lifeskim:mentions | umls-concept:C0007012 | lld:lifeskim |
| pubmed-article:15728388 | lifeskim:mentions | umls-concept:C0851285 | lld:lifeskim |
| pubmed-article:15728388 | lifeskim:mentions | umls-concept:C0597488 | lld:lifeskim |
| pubmed-article:15728388 | lifeskim:mentions | umls-concept:C0332120 | lld:lifeskim |
| pubmed-article:15728388 | pubmed:issue | 10 | lld:pubmed |
| pubmed-article:15728388 | pubmed:dateCreated | 2005-3-9 | lld:pubmed |
| pubmed-article:15728388 | pubmed:abstractText | Respiratory acidosis, a decrease in blood pH caused by a rise in [CO(2)], rapidly triggers a compensatory response in which the kidney markedly increases its secretion of H(+) from blood to urine. However, in this and other acid-base disturbances, the equilibrium CO(2) + H(2)O HCO(3)(-) + H(+) makes it impossible to determine whether the critical parameter is [CO(2)], [HCO(3)(-)], and/or pH. Here, we used out-of-equilibrium CO(2)/HCO(3)(-) solutions to alter basolateral (BL) [HCO(3)(-)], [CO(2)], or pH, systematically and one at a time, on isolated perfused S2 rabbit proximal tubules. We found that increasing [HCO(3)(-)](BL) from 0 to 44 mM, at a fixed [CO(2)](BL) of 5% and a fixed pH(BL) of 7.40, caused HCO(3)(-) reabsorption (J(HCO(3))) to fall by half but did not significantly affect volume reabsorption (J(V)). Increasing [CO(2)](BL) from 0% to 20%, at a fixed [HCO(3)(-)](BL) of 22 mM and pH(BL) of 7.40, caused J(HCO(3)) to rise 2.5-fold but did not significantly affect J(V). Finally, increasing pH(BL) from 6.80 to 8.00, at a fixed [HCO(3)(-)](BL) of 22 mM and [CO(2)](BL) of 5%, did not affect either J(HCO(3)) or J(V). Analysis of the J(HCO(3)) and J(V) data implies that, as the tubule alters J(HCO(3)), it compensates the reabsorption of other solutes to keep J(V) approximately constant. Because the cells cannot respond acutely to pH changes, we propose that the responses of J(HCO(3)) and the reabsorption of other solutes to changes in [HCO(3)(-)](BL) or [CO(2)](BL) involve sensors for basolateral HCO(3)(-) and CO(2). | lld:pubmed |
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| pubmed-article:15728388 | pubmed:language | eng | lld:pubmed |
| pubmed-article:15728388 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:15728388 | pubmed:citationSubset | IM | lld:pubmed |
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| pubmed-article:15728388 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:15728388 | pubmed:month | Mar | lld:pubmed |
| pubmed-article:15728388 | pubmed:issn | 0027-8424 | lld:pubmed |
| pubmed-article:15728388 | pubmed:author | pubmed-author:BoronWalter... | lld:pubmed |
| pubmed-article:15728388 | pubmed:author | pubmed-author:ZhouYuehanY | lld:pubmed |
| pubmed-article:15728388 | pubmed:author | pubmed-author:BouyerPatrice... | lld:pubmed |
| pubmed-article:15728388 | pubmed:author | pubmed-author:ZhaoJinhuaJ | lld:pubmed |
| pubmed-article:15728388 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:15728388 | pubmed:day | 8 | lld:pubmed |
| pubmed-article:15728388 | pubmed:volume | 102 | lld:pubmed |
| pubmed-article:15728388 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:15728388 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:15728388 | pubmed:pagination | 3875-80 | lld:pubmed |
| pubmed-article:15728388 | pubmed:dateRevised | 2009-11-18 | lld:pubmed |
| pubmed-article:15728388 | pubmed:meshHeading | pubmed-meshheading:15728388... | lld:pubmed |
| pubmed-article:15728388 | pubmed:meshHeading | pubmed-meshheading:15728388... | lld:pubmed |
| pubmed-article:15728388 | pubmed:meshHeading | pubmed-meshheading:15728388... | lld:pubmed |
| pubmed-article:15728388 | pubmed:meshHeading | pubmed-meshheading:15728388... | lld:pubmed |
| pubmed-article:15728388 | pubmed:meshHeading | pubmed-meshheading:15728388... | lld:pubmed |
| pubmed-article:15728388 | pubmed:meshHeading | pubmed-meshheading:15728388... | lld:pubmed |
| pubmed-article:15728388 | pubmed:meshHeading | pubmed-meshheading:15728388... | lld:pubmed |
| pubmed-article:15728388 | pubmed:meshHeading | pubmed-meshheading:15728388... | lld:pubmed |
| pubmed-article:15728388 | pubmed:year | 2005 | lld:pubmed |
| pubmed-article:15728388 | pubmed:articleTitle | Evidence from renal proximal tubules that HCO3- and solute reabsorption are acutely regulated not by pH but by basolateral HCO3- and CO2. | lld:pubmed |
| pubmed-article:15728388 | pubmed:affiliation | Department of Cellular and Molecular Physiology, Yale University School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA. | lld:pubmed |
| pubmed-article:15728388 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:15728388 | pubmed:publicationType | Research Support, U.S. Gov't, P.H.S. | lld:pubmed |
| pubmed-article:15728388 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
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