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. 2007 Oct;171(4):1168–1179. doi: 10.2353/ajpath.2007.070528

Figure 2.

Figure 2

The effect of labor on antioxidant enzyme expression. Lysates from placentas delivered by CS or vaginally with short labor (<5 hours) or long labor (>15 hours) were immunoblotted with antibodies against catalase, glutathione peroxidase (GPX1), Cu/Zn-SOD, and Mn-SOD. Immunoblotting with an anti-β-actin antibody served to normalize gel loading. Normalized results (±SE) are plotted, expressing cesarean controls as 100%. Different letters indicate groups that are significantly different using the PLSD test with P < 0.05. Bars indicate groupings of labor samples for comparison with cesarean samples using unpaired Student’s t-test. *P < 0.05.