Light microscopy of trichome stained sections of the renal outer medulla (A and B, 10× original magnification) and renal cortex (C and D, 40× original magnification) of CD247+/+ (A and C) or CD247−/− (B and D) fed 4.0% NaCl chow for three weeks. The percentage of the renal outer medulla consisting of protein casts (E), the calculated glomerular injury score (F), and the number of infiltrating B lymphocytes (CD45R+), T lymphocytes (CD3+) and macrophages/monocytes (CD11b+) in the kidney of CD247+/+ and −/− rats following three weeks of 4.0% NaCl diet are also plotted (G). * indicates P<0.05 vs. CD247−/−.