Fig. 5

Iron content depletion in the myocardial tissue of isoproterenol-induced HF mice. Analysis of intracellular iron levels in hearts: (a) total iron content, b Fe²⁺ ion content and c Fe³⁺ ion content. Data were normalized by protein levels and expressed as mean ± SEM (n = 5 per group); (**p < 0.01 vs control)