Fig. 3.
Effect of treatment on radioiron uptake by cultured heart cells.
Five-day-old cultures were incubated with 160 μM59Fe-labeled ferric ammonium citrate for 24 hours in the presence of PIH analogs at concentrations ranging from 0 to 160 μM iron-binding equivalents. Results are expressed as percentage of total cellular radioactivity in untreated controls. Each point represents the mean ± 1 SD of 6 cultures.