Tissue iron content of aged male <i>Irp2^−/−</i> and WT mice.

<p>Total iron content was determined by inductively-coupled plasma optical emission spectroscopy (ICP-OES). Statistical analysis performed by Student's paired t-test (*<i>p</i><0.05; ***<i>p</i><0.001, mean (µg Fe/mg wet tissue weight) ×100± SEM). Ages of mice: WT, 64–75 weeks; <i>Irp2^−/−</i>, 49–71 weeks.