Sex effects of Lox+/C285F. (A), Female C57 Lox+/C285F show no increase in diameter at 6 months relative to 3 months and only begin to show dilation by 12 months (* p values for 3 vs. 12-month C57 Lox+/C285F and ^ p values for 6 vs. 12-month C57 Lox+/C285F by two-way ANOVA, Tukey). (B,C), When bred to HBP, SBP was modestly increased ((B), p < 0.001 for blood pressure effect and p < 0.01 for Lox effect, two-way ANOVA, Sidak) but there was no HBP effect on vessel diameter (C, p = NS for HBP effect and p < 0.001 for Lox effect by two-way ANOVA, Tukey), * shown are for C57 Lox+/C285F vs. C57 Lox+/+ and HBP Lox+/C285F vs. HBP Lox+/+. There are no statistical differences in diameter within Lox genotypes. (D,E), Male HBP mice (Lox+/C285F and Lox+/+) were castrated at P20 and assessed for SBP and aortic diameter at 3 months. SBP was lower in the castrated males ((D), p < 0.05 by one-way ANOVA, Dunn), and aortic diameter was comparable to the nondilated HBP Lox+/C285 female (E). p values shown are between the sham males and either the castrated males (*) or females (^). For castrated male HBP Lox+/C285F vs. female HBP Lox+/C285F p = NS. All female HBP Lox+/C285F are equivalent. *, ^ p < 0.05; **, ^^ p < 0.01; ***, ^^^ p < 0.001; ****, ^^^^ p < 0.0001.