Diabetes does not affect the expression and phosphorylation of downstream targets of mTORC1. Rats with 3 months of diabetes were treated with either phloridzin twice daily or insulin subconjunctivally once daily for the last 4 days. Analysis of the levels of expression of 4E-BP1 and its phosphorylation on threonines 37 and 46 (A) and S6 ribosomal protein and its phosphorylation on serines 240/244 and serines 235/236 (B), downstream targets of TORC1, showed that neither was reduced by diabetes (n ≥ 5/group). C, control; D, diabetic; D+I, diabetic + insulin; D+P, diabetic + phloridzin; D+P+L, diabetic + phloridzin + local insulin.