ADIPOR2 and diabetes mellitus: Treatment with fenofibrate significantly reduced the expression of adiponectin (P < 0.001 for all of the paired comparisons), adipoR1 (P < 0.05 for the FL group and P < 0.001 for the FH group), and adipoR2 (P < 0.05 for all of the paired comparisons) compared with the same expression levels that were observed in the rat retinas of the diabetes group.