A, normalized weights of whole heart, and left (LV) and right ventricle (RV) in TG versus WT hearts. B and C, slot blot analysis of LV RNA from WT and TG hearts to show changes in message for atrial natriuretic factor (ANF), β-myosin heavy chain (β-Myh) and α skeletal actin. There are no statistical differences in any of the comparisons. ytRNA, yeast tRNA; Neo. Heart, neonatal mouse heart; Sk muscle, skeletal muscle.