Butylidenephthalide Blocks Potassium Channels and Enhances Basal Tension in Isolated Guinea-Pig Trachea

<table>Typical tracing of baseline tension change induced by cumulative butylidenephthalide (Bdph, lower panel) compared to its vehicle (0.03~1% ethyl alcohol, upper panel) in isolated guinea-pig trachea. The vertical line indicates tension change.</table>

BioMed Research International

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Figure 2

Figure 2: Butylidenephthalide Blocks Potassium Channels and Enhances Basal Tension in Isolated Guinea-Pig Trachea 