Figure 4.
Effects of administration of XAG (black bars), l-NAME (light gray bar), and l-NAME plus XAG (dark gray bars) on (A) fractional sodium excretion, (B) glomerular filtration rate, and (C) mean arterial pressure in clearance experiments described in experimental protocol C (see text for further details). XAG, 8-o-β-d-glucoside derivative of xanthurenic acid.