Figure showing progressive cardiac abnormalities in DmdΔ45 rats compared with wild‑type controls. Panel A presents a bar graph of heart weight normalized to body weight, with DmdΔ45 rats showing increased values. Panel B displays heart tissue sections: HPS staining on the left reveals structural disorganization, and Sirius Red staining on the right highlights increased fibrosis in DmdΔ45 hearts, particularly in the left and right ventricles. Panel C shows a line graph of cardiac output measured by transthoracic echocardiography from 3 to 18 months, with DmdΔ45 rats exhibiting a decline over time. Panel D presents left ventricular end‑systolic diameter measurements, which are enlarged in DmdΔ45 rats. Panel E shows a bar plot of ejection fraction, reduced in DmdΔ45 animals.
Tao Wang, Cynthia Daoud, Abbass Jaber, Isabelle Richard & co generated a new #RatModel of #DuchenneMuscularDystrophy with an exon 45 deletion using CRISPR/Cas9, recapitulating the most-frequent single-exon deletion and key features of #DMD.
Read: doi.org/10.1242/dmm....
