Key result
Adenosine protected energy metabolism and contractility in stunned guinea pig myocardium more effectively than selective A1-receptor agonists or purine salvage precursors.
Why the study?
Does adenosine improve ventricular contractility and phosphorylation potential in stunned guinea pig hearts?
Population
Langendorff guinea pig hearts stunned at constant left ventricular end-diastolic pressure by low-flow ischemia
Comparison
Adenosine started after a 10-min normoxic… vs Other pharmacological agents…
Design
Preclinical
Follow-up
30 min reperfusion
Authors
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Adenosine's superior protection in stunned guinea pig hearts should not yet alter clinical practice; leaves open translation of multifactorial mechanisms to human reperfusion injury.
Does adenosine improve ventricular contractility and phosphorylation potential in stunned guinea pig hearts?
Adenosine protects stunned myocardium through a multifactorial mechanism combining A1-receptor signaling with metabolic adenylate and antioxidant enhancements.
Schulze et al. (2007) studied Ventricular stunning / reperfused myocardium. Adenosine (ADO) vs. Control / other pharmacological agents was evaluated on Ventricular contractility and phosphorylation potential. Adenosine protected energy metabolism and contractility in stunned guinea pig myocardium more effectively than selective A1-receptor agonists or purine salvage precursors.
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