Fold expression of cardiac hypertrophy markers in RL-14 cells after treatment at 10 µM for 24 h of doxorubicin, DoxQ, or quercetin. The mRNA expression of a BNP, b α-MHC, and c β-MHC in RL-14 cells. The mRNA expression was quantified by RT-PCR and normalized to β-actin as a housekeeping gene. N = 6; mean ± SEM.*P < 0.05 compared to doxorubicin, +P < 0.05 compared to control