MAPK3 and cardiac hypertrophy: Takahashi et al. 42 reported that the phosphorylation of ERK‐1/2, not p38 MAPK, was involved as an intracellular signalling pathway leading to cardiac hypertrophy in STNx rat model and blockade of ERK‐1/2 phosphorylation could prevent cardiac remodelling, which is consistent with our results.