Fig. 4. Progressive cardiomyopathy of Mfn2-deficient mouse hearts and Parkin-deficient Drosophila heart tubes.
(A) Transmission electron microscopic examination of mouse cardiomyocyte mitochondria (5,000x). (B) Whole cell O2 consumption studies of cadiomyocytes isolated from wild-type (black) or Mfn2-deficient (red) mouse hearts. (C) M-mode echocardiograms of mouse hearts. (D) Confocal imaging of Drosophila cardiomyocyte mitochondria. (E) O2 consumption studies of heart tubes isolated from wild-type (black) or Parkin-deficient (red) Drosophila. (F) Optical coherence tomography of Drosophila heart tubes. (G) Mitochondrial ubiquitination (green) induced by FCCP in wild-type and Parkin-deficient Drosophila cardiomyocytes.