Fig. 6.
Rat preglomerular vascular smooth muscle cells were incubated for 1 h in the absence (basal) and presence of iodoacetate (50 μmol/l), and medium was assayed for guanosine (A), uridine (B), cytidine (C), and thymidine (D) by mass spectrometry. Values represent means ± SE. <DL, less than detection limit.