MTOR and chronic lung disease: (35) In our CS-60 group, there was a significant reduction in p-mTOR expression,which was an expected result, because myopathy is associated with reduced expression ofp-mTOR.(36) Such myopathy is common in chronic lung diseases.(1) However, in our study, the expression of p-AMPK was increased only from day30 to day 45 of CS exposure.