Preprint Article Version 1 This version is not peer-reviewed

Maternal Resveratrol Supplementation Prevents Cognitive Decline in Senescent Mice Offspring

Version 1 : Received: 7 February 2019 / Approved: 11 February 2019 / Online: 11 February 2019 (08:56:08 CET)

A peer-reviewed article of this Preprint also exists.

Izquierdo, V.; Palomera-Ávalos, V.; López-Ruiz, S.; Canudas, A.-M.; Pallàs, M.; Griñán-Ferré, C. Maternal Resveratrol Supplementation Prevents Cognitive Decline in Senescent Mice Offspring. Int. J. Mol. Sci. 2019, 20, 1134. Izquierdo, V.; Palomera-Ávalos, V.; López-Ruiz, S.; Canudas, A.-M.; Pallàs, M.; Griñán-Ferré, C. Maternal Resveratrol Supplementation Prevents Cognitive Decline in Senescent Mice Offspring. Int. J. Mol. Sci. 2019, 20, 1134.

Journal reference: Int. J. Mol. Sci. 2019, 20, 1134
DOI: 10.3390/ijms20051134

Abstract

A variety of environmental factors contribute significantly to age-related cognitive decline and Alzheimer’s Disease (AD). Nutrition can alter epigenetics, improving health outcomes, which transmitted across generations; this process is called epigenetic inheritance. We investigate the beneficial effects of maternal resveratrol supplementation in offspring. We feed females SAMP8 with resveratrol-enriched diet during two months prior to mating. Direct exposed F1 generation and the transgenerational F2 generation were investigated. Object novel recognition and Morris water maze demonstrated improvements in cognition in the 6-month-old F1 and F2 generations from resveratrol fed mothers. A significant increase in global DNA methylation with a decrease in hydroxymethylation in F1 and F2 were found. Accordingly, Dnmt3a/b and Tet2 gene expression changed. Methylation levels of Nrf2 and NF-kβ genes promoters raised in offspring, inducing changes in target genes expression, as well as hydrogen peroxide levels. Offspring resulted from resveratrol fed mother showed increase AMPKα activation, mTOR inhibition and an increase in Pgc-1α gene expression and Beclin-1 protein levels. Endoplasmic reticulum stress sensors were found changed both in F1 and F2 generations. Overall, our results demonstrated that maternal resveratrol supplementation could prevent cognitive impairment in the SAMP8 mice offspring through epigenetic changes and cell signaling pathways.

Subject Areas

Cognitive decline, Epigenetics, Epigenetic inheritance, Methylation, Nrf2, NF-kβ, Oxidative stress, Inflammation, resveratrol, SAMP8

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