Resveratrol supplementation confers neuroprotection in cortical brain tissue of nonhuman primates fed a high-fat/sucrose diet

Miche Bernier, Devin Wahl, Ahmed Ali, Joanne Allard, Shakeela Faulkner, Artur Wnorowski, Mitesh Sanghvi, Ruin Moadde, Irene Alfaras, Julie A. Mattison, Stefano Tarantini, Zsuzsanna Tucsek, Zoltan Ungvari, Anna Csiszar, Kevin J. Pearson, Rafael de Cabo

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

Previous studies have shown positive effects of long-term resveratrol (RSV) supplementation in preventing pancreatic beta cell dysfunction, arterial stiffening and metabolic decline induced by high-fat/high-sugar (HFS) diet in nonhuman primates. Here, the analysis was extended to examine whether RSV may reduce dietary stress toxicity in the cerebral cortex of the same cohort of treated animals. Middle-aged male rhesus monkeys were fed for 2 years with HFS alone or combined with RSV, after which whole-genome microarray analysis of cerebral cortex tissue was carried out along with ELISA, immunofluorescence, and biochemical analyses to examine markers of vascular health and inflammation in the cerebral cortices. A number of genes and pathways that were differentially modulated in these dietary interventions indicated an exacerbation of neuroinflammation (e.g., oxidative stress markers, apoptosis, NF-?B activation) in HFS-fed animals and protection by RSV treatment. The decreased expression of mitochondrial aldehyde dehydrogenase 2, dysregulation in endothelial nitric oxide synthase, and reduced capillary density induced by HFS stress were rescued by RSV supplementation. Our results suggest that long-term RSV treatment confers neuroprotection against cerebral vascular dysfunction during nutrient stress.

Original languageEnglish
Pages (from-to)899-916
Number of pages18
JournalAging
Volume8
Issue number5
DOIs
StatePublished - 2016

Bibliographical note

Publisher Copyright:
© 2016 Bernier et al.

Keywords

  • Brain vasculature
  • CDNA microarray
  • Endothelial nitric oxide synthase
  • Inflammation
  • Rhesus monkeys

ASJC Scopus subject areas

  • Aging
  • Cell Biology

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