Concentration-dependent dual effects of plumbagin on PhE-contraction in DFAs.
Raw traces of 1 µM plumbagin (A, n=10) and 10 µM plumbagin (B, n=5) in DFAs. Plumbagin concentration response curves (0.1–50 µM) (C). The peak of contraction is indicated black line and steady state value of plumbagin treatment is indicated red line. Numbers of tested vessels are indicated above each symbol of peak response.