Atherosclerosis plaques.

<p>Sections of the orifices of the coronary arteries marking the start of the ascending arch in a 5-month old control ApoE−/− mouse (A) and an ApoE−/− mouse following chronic radiation exposure (B). Percent lesion area profiles for acute (C) and chronic (D) radiation exposure. Mean ± SEM. Acute, 0 (n = 15), 0.5 Gy (n = 15), 2 Gy (n = 15). Chronic, 0 (n = 15), 2 Gy (n = 15). Two-way ANOVA with <i>Dose</i> (0, 2 Gy) and <i>Time</i> (acute, chronic) as factors, <i>Time</i> main effect, p = 0.005. *Tukey test, acute vs chronic, p<0.05.