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. 2006 May 22;148(5):714–723. doi: 10.1038/sj.bjp.0706779

Figure 5.

Figure 5

Representative photomicrographs and histograms of DHE staining in extrapulmonary (a) and intrapulmonary (b) arteries from wild-type mice exposed or not to hypoxia. Slides were preincubated in the absence or presence of 135 U ml−1 PEG-SOD or 250 U ml−1 PEG-catalase before the addition of DHE. In histograms, fluorescent intensity is expressed as relative values (percentage of fluorescence obtained in arteries from normoxic mice). *P<0.05, **P<0.01: significant difference (Student's t-test). n=4.