Figure 3From: Uptake of 3H-cAMP by retinal pigment epithelium isolated from bluegill sunfish (Lepomis macrochirus)Effects of probenecid on cAMP-induced aggregation. The t0 pigment index was 0.88 ± 0.03 (n = 4) after a 30 minute preculture. The control, containing 1.0 mM cAMP and DMSO, had a pigment index of 0.72 ± 0.03 (n = 4, except where noted).Back to article page