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PPAR Research
Volume 2013 (2013), Article ID 686525, 11 pages
Review Article

Molecular Implications of the PPARs in the Diabetic Eye

Unidad de Investigación en Diabetes y Metabolism, CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Instituto de Investigación Vall d'Hebron, Universitat Autónoma de Barcelona, Paseo Vall d'Hebron, 119-129 Barcelona, Spain

Received 26 September 2012; Revised 7 January 2013; Accepted 7 January 2013

Academic Editor: Ruth Roberts

Copyright © 2013 Andreea Ciudin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Diabetic retinopathy (DR) remains as the leading cause of blindness among working age individuals in developed countries. Current treatments for DR (laser photocoagulation, intravitreal corticosteroids, intravitreal anti-VEGF agents, and vitreoretinal surgery) are applicable only at advanced stages of the disease and are associated with significant adverse effects. Therefore, new pharmacological treatments for the early stages of the disease are needed. Emerging evidence indicates that peroxisome proliferator-activator receptors (PPARs) agonists (in particular PPARα) are useful for the treatment of DR. However, the underlying molecular mechanisms are far from being elucidated. This paper mainly focuses on PPARs expression in the diabetic eye, its molecular implications, and the effect of PPAR agonists as a new approach for the treatment of DR. The availability of this new strategy will not only be beneficial in treating DR but may also result in a shift towards treating earlier stages of diabetic retinopathy, thus easing the burden of this devastating disease (Cheung et al. (2010)).