2004
DOI: 10.1007/s00125-004-1355-1
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Paradoxical effects of insulin on cardiac L-type calcium current and on contraction at physiological temperature

Abstract: Aims/hypothesis. L-type calcium current (I Ca,L ) is a major determinant of mammalian cardiac contraction, and data from studies performed at room temperature suggest that this current is stimulated by insulin. This investigation aimed to determine whether or not insulin stimulates cardiac I Ca,L at 37°C. Methods. Isolated guinea pig ventricular myocytes were studied at room temperature and at 37°C. Myocytes were either field stimulated or whole-cell voltage clamped, and cell shortening was measured using vide… Show more

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Cited by 8 publications
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“…Although this difference may seem trivial, there are multiple reports of the temperature dependence of cardiomyocyte contractility and calcium handling, and in some cases opposite effects are seen at room temperature vs. 37°C. [ 36 ],[ 37 ],[ 38 ],[ 39 ]…”
Section: Discussionmentioning
confidence: 99%
“…Although this difference may seem trivial, there are multiple reports of the temperature dependence of cardiomyocyte contractility and calcium handling, and in some cases opposite effects are seen at room temperature vs. 37°C. [ 36 ],[ 37 ],[ 38 ],[ 39 ]…”
Section: Discussionmentioning
confidence: 99%