a) Expression of Sox6 (left panel) and Trbp (right panel) in the hearts of 1-month old TrbpcKO and control mice injected with AAV-Scramble or AAV-Sox6 shRNA. n = 3.
b) Kaplan-Meier survival curves (TrbpcKO /AAV-Scramble VS. TrbpcKO /AAV-Sox6 shRNA, p<0.01).
c) Gross morphology and histology of the heart samples from 1-month old mice. Bars = 1.0 mm.
d) Left ventricle internal dimension at systolic (LVID;s) and fractional shortening (FS%) of 1-month old mice. n = 6–12.
e) Expression of Anf in the hearts of 1-month old mice. n = 3.
f) Expression of fast-twitch myofiber genes in the hearts of 1-month old mice. n = 3.
g) Expression of slow-twitch myofiber genes in the hearts of 1-month old mice. n = 3.
h) Schematic of AAV9 constructs (upper panel). Western blot to detect Flag-tagged Trbp protein expression in 1-week old hearts after AAV injection (lower panel). β-tubulin serves as a loading control.
i) Kaplan-Meier survival curves of AAV-Sox6 and AAV-Luc control injected mice (p<0.01).
j) Left ventricle internal dimension at systolic (LVID;s) and fractional shortening (FS%) of 1-month old mice injected with AAV-Sox6 or AAV-Luc control. n = 6–7.
k) Expression of fast-twitch myofiber genes in the hearts of 1-month old mice injected with AAV-Sox6 or AAV-Luc control. n = 3.
l) Expression of slow-twitch myofiber genes in the hearts of 1-month old mice injected with AAV-Sox6 or AAV-Luc control. n = 3. Values are expressed as the mean ± SD. NS: not significant, *: P<0.05, **: P<0.01.