Table 2 Descriptive statistics for oxidative markers measured in serum of lactating and non-reproductive mice selected for high and low food intake.

From: Oxidative costs of reproduction in mouse strains selected for different levels of food intake and which differ in reproductive performance

Variables

NH

RH

NL

RL

Line

Reproductive status

n

10

20

10

14

  

dROMs

11.52a ± 0.40

9.18b ± 0.28

9.26b ± 0.52

6.83c ± 0.50

F1,51 = 31.6, P < 0.001

F1,51 = 31.7, P < 0.001

OXY

295.90a,b ± 22.0

253.30b ± 10.60

380.10a ± 65.40

286.90a,b ± 14.20

F1,51 = 5.7, P = 0.020

F1,51 = 5.5, P = 0.023

OS Index

40.40a ± 2.57

37.51a ± 1.99

30.64a,b ± 5.09

24.15b ± 1.85

F1,51 = 19.1, P < 0.001

F1,51 = 2.6, P = 0.11

  1. Measurements of reactive oxygen metabolites (dROMs) and total non-enzymatic antioxidants (OXY) in reproductive and non-reproductive mice of selection lines for high or low food intakes. OS index was calculated by dividing dROMS by OXY * 1000. Values shown are mean ± SEM. Results of two-way ANOVAs are shown with line and reproductive status as fixed factors. No significant interactions between line and reproductive status were found in the models and these were therefore removed before final analysis.NH: Non-reproducing high food intake mice; RH: Reproducing high food intake mice; NL: Non-reproducing low food intake mice; RL: Reproducing low food intake mice. Different letters indicate significant differences between groups (post-hoc Tukey tests, p < 0.05).
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