FIG. 4.
Impact of cardiac-specific IGF-1R overexpression on diabetes-induced diastolic dysfunction. A: Representative mitral flow patterns from pulsed wave Doppler echocardiography. Diabetes (B) tends to decrease E velocity and (C) increases peak A velocity, with (D) net reduction in E:A wave ratio in both Ntg and IGF-1R diabetic mice. IGF-1R (E) reduces incidence of diastolic dysfunction, (F) restores normal deceleration time, and (G) tends to improve LV end diastolic pressure. n = 7–12 in each group; *P < 0.05 vs. sham of the same genotype; †P < 0.05 vs. Ntg counterpart.