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Fig. 2 | European Journal of Medical Research

Fig. 2

From: Vasomotion of mice mesenteric arteries during low oxygen levels

Fig. 2

Vasomotion of arterial segments in Ca2+-free solution. a Percentage of dilating arterial segments in Ca2+-free buffer solutions. Under each oxygen concentration, we investigated eight arterial segments each from different animals. In Ca2+-free solution, more vessel segments responded with vasodilation compared to Ca2+-containing solutions. When reducing oxygen concentrations more arteries responded with vasodilatation. The black line represents the experiments in Ca2+-free solution and the grey line represents the controls in Ca2+-containing buffer. Controls (n = number of arteries responding with vasodilatation from a total number of eight). b Percentage change of luminal diameter in Ca2+-free buffer solution is represented in relation to the maximal dilatation evoked by 0.1 mM nitroprusside sodium. n = number of arterial segments that responded with hypoxia-induced vasodilatation. c Percentage change of luminal diameter is represented in relation to the maximal contraction induced by 1 mM Phe. Negative algebraic sign on the Y-axis: constriction of the arterial segment (n = number of arteries from different individual animals; *p < 0.05; Student t test for paired samples)

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