Key result
Alpha-1-adrenergic receptor subtypes exert opposing effects on cardiac rhythm, either decreasing automaticity or increasing it and potentially inducing arrhythmias during ischemia and reperfusion.
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Alpha-1-adrenergic receptor activation modulates cardiac automaticity and may contribute to arrhythmogenesis during ischemia and reperfusion.
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Rosen et al. (1991) studied this question. Alpha-1-adrenergic receptor subtypes exert opposing effects on cardiac rhythm, either decreasing automaticity or increasing it and potentially inducing arrhythmias during ischemia and reperfusion.
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