Mean arterial blood pressure (MAP, A), urinary protein excretion (B), and urinary albumin excretion (C) after 3 wk of 4.0% high-salt challenge in Dahl salt-sensitive (SS) and SS-Rag1−/− rats fed either the normal (18%) or high (30%)-protein chow. Two-way ANOVA with Holm-Sidak post hoc test, *P < 0.01 and **P < 0.001 vs. 18% SS, #P < 0.01 and ##P < 0.001 vs. 30% SS. Here, 18% SS, n = 8; 30% SS, n = 7; 18% SS-Rag1−/−, n = 8; 30% SS-Rag1−/−, n = 5–7.