Fig. 2.
Autoregulatory behavior of afferent arterioles in DOCA-salt hypertensive rats. A: afferent arteriolar response to alterations in renal perfusion pressure was measured in UNx (circles), DOCA-salt (diamonds), DOCA-salt+PPS (100 mg·kg−1·day−1, squares), or DOCA-salt+TTx (triangles). B: data are normalized as percentage of the control diameter at 100 mmHg. C: afferent arteriolar response to norepinephrine at the end of each experiment except that one arteriole was not assessed from the DOCA-salt or DOCA-salt+TTx group due to insufficient perfusate blood. Values are means ± SE. *P < 0.05 vs. control diameter in the same group. †P < 0.05 vs. UNx rats at the same perfusion pressure. #P < 0.05 vs. DOCA-salt+PPS at the same perfusion pressure. &P < 0.05 vs. DOCA-salt+TTx at the same perfusion pressure.