Table 1. Results of two-way ANOVAs testing for effects of age and region on baseline measures of each dependent variable in sham irradiated, control rats (results of post-hoc tests provided in Figures 2, 3, 6 and 7).

	Age	Region	Interaction
#Iba1	F(2,90) = 13.20 p<0.001	F(2,90) = 29.22, p<0.001	F(4,90) = 8.06, p<0.001
#Ki67+/Iba1+	F(2,89) = 19.01, p<0.001	F(2,89) = 15.62, p<0.001	F(4,89) = 7.76, p<0.001
%Iba1+/Ki67+	F(2,88) = 10.00, p<0.001	F(2,88) = 8.78, p<0.001	F(4,88) = 2.60, p = 0.04
#ED1+	F(2,85) = 113.51, p<0.001	F(2,85) = 218.18, p<0.001	F(4,85) = 49.15, p<0.001
Est. %ED1+	F(2,84) = 42.01, p<0.001	F(2,84) = 115.78, p<0.001	F(4,84) = 7.27, p<0.001
#Ki67+/Iba1−	F(2,86) = 1.62, p = 0.20	F(2,86) = 364.30, p<0.001	F(4,86) = 1.01, p = 0.48