Fig. 5

Transmission electron microscopy images of heart tissues derived from the normal control (a–b), the DCM control (c–d), the supernatant group (e–f), the low-dose group (g–h), and the high-dose group (i–j). The red arrowheads show lysis of sarcolemma; the yellow arrows show chaotic arrangement of sparse myofibrils; the green arrowheads show swelling of mitochondria; the blue arrowhead show glycogen deposits