Relative adenosine receptor (AR) mRNA expression in SmCre/A1ARff mice (A) and NestinCre/A1ARff mice (B). Expression levels are given for kidney (top), heart (middle), and brain (bottom), and data for A1AR, A2aAR, and A2bAR are expressed relative to respective wild-type levels (cre−). Data represent means ± SE (SmCre−: n = 7, SmCre+: n = 8; NestinCre−: n = 8, NestinCre+: n = 8). Significant difference: *P < 0.05; **P < 0.01.