Figure 1.   Myocardial gene expression regarding hypertrophy. The mRNA levels based on the RNase protection assay of each gene related with cardiac hypertrophy are expressed as relative values to that of glyceraldehyde 3-phosphate dehydrogenase (GAPDH). * p < 0.05 versus SED. (a1) and (a2): skeletal and cardiac -actin, respectively. (b1) and (b2): atrial- (ANP) and brain-types of natriuretic peptides (BNP), respectively. (c1) and (c2): - and ß-isoforms of myosin heavy chains (MyHC), respectively. (d): sarcoplasmic reticulum calcium ATPase. Abbreviations: SED = sedentary group, EX = voluntary exercise group, AC = ascending aortic constriction group.