Fig. 3.

Line graph summarizes changes in renal perfusion pressure in response to RSNS in 2 sets of control C57BL/6 kidneys and in a group of C57BL/6 kidneys treated with 1,3-dipropyl-8-p-sulfophenylxanthine (DPSPX; 100 μmol/l; adenosine receptor antagonist that does not penetrate cell membranes). P values in panels are from nested 2-factor ANOVA comparing the 2nd control set to the DPSPX-treated group; ^aP < 0.05 compared with corresponding value in the 2nd control set (Fisher's LSD test). All values represent means ± SE.