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Figure 3 Superoxide Production by Human Saphenous Veins From Patients With and Without Heart Failure
(A) Superoxide production by lucigenin-enhanced chemiluminescence. *p < 0.05 by Mann-Whitney test. (B) Relationship between superoxide and New York Heart Association (NYHA) functional class using a linear regression model adjusted for diabetes and renal failure. *p < 0.05. (C) Effect of various inhibitors on superoxide production in the control and heart failure groups. *p < 0.05 by analysis of variance followed by Scheffe test, to test for differences among interventions in either the control group or the heart failure group. DPI = diphenyleneiodonium; L-NAME = NG-nitro-L-arginine methyl ester. (D) Relationship between superoxide and C-reactive protein (CRP) levels; Pearson correlation: r = 0.501; p < 0.05.
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