Fig. 1.
Changes in MAP and plasma levels of NO2−/NO3− in rats administered saline or ET.
Changes in MAP (A) and plasma levels of NO2−/NO3−, stable metabolites of NO, (B) were determined at the indicated time points after the administration of saline (control, open circles) or ET (5 mg/kg, closed circles). Pre indicates the time just before ET administration. Data are expressed as means ± SD of 5 animals. *P < .01 versus control.