However, we could provide a possible mechanism underlying the protective roles of adiponectin in colorectal carcinogenesis promoted by a high-fat diet We consider that AMPK and mTOR may be novel therapeutic targets for the prevention of colorectal cancer under the low levels of plasma adiponectin in an obese population where the obesity is a result of a Western-style diet with a high fat content. Here, MTOR is linked to obesity due to melanocortin 4 receptor deficiency.