FIG. 4.

Ventricular wall mass for HF vs. WT mice. Shaded and open symbols are the average of the nearest two time points for each animal at each time point. Note the larger HF hearts and the peak in growth at around week 12. Statistical significance refers to the difference in mass between the earliest and latest time points within each bracket for the entire HF data set (N = 4). HF vs. time: * P < 0.005. NS: not statistically significant.