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Article Publish Status: FREE
Abstract Title:

Pterostilbene Prevents Early Diabetic Retinopathy Alterations in a Rabbit Experimental Model.

Abstract Source:

Nutrients. 2019 Dec 27 ;12(1). Epub 2019 Dec 27. PMID: 31892189

Abstract Author(s):

Iván Millán, María Del Carmen Desco, Isabel Torres-Cuevas, Salvador Pérez, Inés Pulido, Salvador Mena-Mollá, Jorge Mataix, Miguel Asensi, Ángel Luis Ortega

Article Affiliation:

Iván Millán

Abstract:

Oxidative stress generated by diabetes plays a key role in the development of diabetic retinopathy (DR), a common diabetic complication. DR remains asymptomatic until it reaches advanced stages, which complicate its treatment. Although it is known that good metabolic control is essential for preventing DR, knowledge of the disease is incomplete and an effective treatment with no side effects is lacking. Pterostilbene (Pter), a natural stilbene with good antioxidant activity, has proved to beneficially affect different pathologies, including diabetes. Therefore, our study aimed to analyse the protective and/or therapeutic capacity of Pter against oxidant damage by characterising early retinal alterations induced by hyperglycaemia, and its possible mechanism of action in a rabbit model of type 1 diabetes mellitus. Pter reduced lipid and protein oxidative damage, and recovered redox status and the main activities of antioxidant enzymes. Moreover, the redox regulation by Pter was associated with activation of the PI3K/AKT/GSK3β/NRF2 pathway. Our results show that Pter is a powerful protective agent that may delay early DR development.

Study Type : Animal Study

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