Natural Antioxidant-Isoliquiritigenin Ameliorates Contractile Dysfunction of Hypoxic Cardiomyocytes via AMPK Signaling Pathway

Figure 2

Intracellular Ca²⁺ properties of cardiomyocytes. (a) The intracellular Ca²⁺ levels; (b) the rise in intracellular Ca²⁺ levels in response to electrical stimulus; (c) the first exponential decay constant of intracellular Ca²⁺; (d) the biexponential decay constant of intracellular Ca²⁺ in response to hypoxia (20 min). Values are means ± SE, 𝑛=60--90 cells per group, ^∗𝑃<0.05 versus normoxia vehicle; ^†𝑃<0.05 versus hypoxia vehicle.

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