cardiovascular system
• reduced dobutamin affect on left ventricular fractional shortening
• reduced left ventricular ejection fraction
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• left ventricular pressure development is reduced in isolated perfused hearts
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homeostasis/metabolism
• calcium ion uptake by the sarcoplasmic reticulum is reduced at a variety of calcium concentrations
• caffein stimulated calcium transients in cardiac myocytes are reduced around 50%
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muscle
• reduced dobutamin affect on left ventricular fractional shortening
• reduced left ventricular ejection fraction
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