Figure 1.

Effect of l-Name and SNP on renin secretion from isolated rat kidneys perfused at 100 mmHg. Samples were taken in 5-min intervals during the different experimental periods, the duration of which is indicated in the upper part of the figure. For determination of significant differences renin secretion rates obtained within a certain experimental period of each kidney were taken together and averaged. The experimental protocols were run with five different kidneys. Data are means +/− SEM.