Figure 4: Effects of Spirogyra neglecta extract on renal rOat3 substrate transports. Rat renal cortical slices from each experimental groups were incubated for 30 min at room temperature with organic anion substrates, (a) 50 nM of [3H]ES or (b) 5 uM of [3H]PAH. Data are expressed as tissue to medium ratios (T/M), that is, tissue content (DPM/g) ÷ medium (DPM/mL). The results are expressed as mean ± S.E.M. Each experiment was performed from separate sets of animals using 5 slices from each animal ( ).