MAPK1 and atherosclerosis: Stem-loop qRT-PCR detected that the miR-124 expression level in the thoracic aorta tissues was downregulated in ApoE-/- C57B/L6J mice compared with that in the control mice (Figure 1L), suggesting that the expression of miR-124 was negatively correlated with the p38 level during atherosclerosis development.