Figure 6From: Significance of KATP channels, L-type Ca2+ channels and CYP450-4A enzymes in oxygen sensing in mouse cremaster muscle arterioles In vivo Effects of cumulative stepwise application of 3 μM and 30 μM nifedipine on arteriolar responses were evaluated (*p < 0.05 vs. high oxygen, †p < 0.05 vs. control and washout during high oxygen, ‡p < 0.05 vs. papaverine, n = 5). Back to article page