Fig. 4From: Sex differences in lymphoid follicles in COPD airwaysAntioxidant genes are blunted in parenchymal tissues of female mice and, Mmp12 and Cxcl2 genes are positively correlated with 3NTyr. a) Cyp1a1 and b) Nqo-1, c) Mmp12 and d) Cxcl2 gene expression was normalized to β2m in parenchymal tissues of male, female and ovariectomized mice exposed to air (control, C) or smoke (S) for 6 months. Values were expressed as mean ± SEM (n = 4–5). E) Mmp12 and F) Cxcl2 gene expression was correlated with 3-nitrotyrosine (3NTyr) per mg of total protein. One-way analysis of variance with Bonferroni’s multiple comparisons test was used in panels a-d. Linear regression analyses were used panels E-F. Cyp1a1 = cytochrome p450; Nqo1 = NAD(P)H:quinone oxidoreductase 1, Mmp12 = matrix metalloproteinase, Cxcl2 = chemokine ligand 2 (macrophage inflammatory protein 2-alpha); β2m = β2-macroglobulin.Back to article page