MYH2 and atherosclerosis: Interestingly, with relatively limited but visible Myh2 staining using immunocytochemistry in atherosclerotic lesions, no significant Myh2 mRNA levels were detected using RT-PCR from the proximal aorta of the mouse model of atherosclerosis compared to the abundant Myh2 mRNA levels from the thoracic aorta (Figure 3).