| pubmed-article:4344732 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:4344732 | lifeskim:mentions | umls-concept:C0013227 | lld:lifeskim |
| pubmed-article:4344732 | lifeskim:mentions | umls-concept:C0086418 | lld:lifeskim |
| pubmed-article:4344732 | lifeskim:mentions | umls-concept:C0034493 | lld:lifeskim |
| pubmed-article:4344732 | lifeskim:mentions | umls-concept:C0012984 | lld:lifeskim |
| pubmed-article:4344732 | lifeskim:mentions | umls-concept:C0018787 | lld:lifeskim |
| pubmed-article:4344732 | lifeskim:mentions | umls-concept:C0034144 | lld:lifeskim |
| pubmed-article:4344732 | lifeskim:mentions | umls-concept:C1522564 | lld:lifeskim |
| pubmed-article:4344732 | lifeskim:mentions | umls-concept:C0038766 | lld:lifeskim |
| pubmed-article:4344732 | lifeskim:mentions | umls-concept:C1280500 | lld:lifeskim |
| pubmed-article:4344732 | lifeskim:mentions | umls-concept:C2257617 | lld:lifeskim |
| pubmed-article:4344732 | pubmed:issue | 9 | lld:pubmed |
| pubmed-article:4344732 | pubmed:dateCreated | 1973-2-7 | lld:pubmed |
| pubmed-article:4344732 | pubmed:abstractText | Long-term clinical studies have associated tolbutamide therapy with an increased incidence of cardiovascular deaths. The effects of this and other sulfonylurea drugs on contractility and rate of isolated rabbit atria, automaticity of isolated dog Purkinje fibers, and adenyl cyclase activity in particulate preparations of rabbit and human hearts were studied. At concentrations that are attained clinically, tolbutamide (10 mg/100 ml) increased contractility of driven rabbit atria to 124+/-5% of control, acetohexamide (3.9 mg/100 ml) to 140+/-5%, chlorpropamide (8.3 mg/100 ml) to 139+/-6%, and tolazamide (3.1 mg/100 ml) to 119+/-6%. These effects were accentuated in the presence of 2.5 x 10(-4) M theophylline and were not blocked by 1 x 10(-5) M propranolol. Adenyl cyclase was activated by each of these drugs at concentrations below those which increase contractility. The drugs also increased the rate and slope of phase 4 depolarization in spontaneously beating Purkinje fibers, but did not alter the spontaneous rate of isolated rabbit atria. Since inotropic and chronotropic stimulation can be deleterious in some clinical settings, these findings may be of significance in interpretation of cardiovascular mortality data. | lld:pubmed |
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| pubmed-article:4344732 | pubmed:language | eng | lld:pubmed |
| pubmed-article:4344732 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:4344732 | pubmed:citationSubset | AIM | lld:pubmed |
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| pubmed-article:4344732 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:4344732 | pubmed:month | Sep | lld:pubmed |
| pubmed-article:4344732 | pubmed:issn | 0021-9738 | lld:pubmed |
| pubmed-article:4344732 | pubmed:author | pubmed-author:LeveyG SGS | lld:pubmed |
| pubmed-article:4344732 | pubmed:author | pubmed-author:LasseterK CKC | lld:pubmed |
| pubmed-article:4344732 | pubmed:author | pubmed-author:PalmerR FRF | lld:pubmed |
| pubmed-article:4344732 | pubmed:author | pubmed-author:McCarthyJ SJS | lld:pubmed |
| pubmed-article:4344732 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:4344732 | pubmed:volume | 51 | lld:pubmed |
| pubmed-article:4344732 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:4344732 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:4344732 | pubmed:pagination | 2429-34 | lld:pubmed |
| pubmed-article:4344732 | pubmed:dateRevised | 2009-11-18 | lld:pubmed |
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| pubmed-article:4344732 | pubmed:year | 1972 | lld:pubmed |
| pubmed-article:4344732 | pubmed:articleTitle | The effect of sulfonylurea drugs on rabbit myocardial contractility, canine purkinje fiber automaticity, and adenyl cyclase activity from rabbit and human hearts. | lld:pubmed |
| pubmed-article:4344732 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:4344732 | pubmed:publicationType | In Vitro | lld:pubmed |
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