Short-term caloric restriction or resveratrol supplementation alters large-scale brain network connectivity in male and female rats

IntroductionDietary interventions such as caloric restriction (CR) exert positive effects on brain health. Unfortunately, poor compliance hinders the success of this approach. A proposed alternative is resveratrol (Rsv), a CR-mimetic known to promote brain health. Direct comparison between the effec...

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Main Authors: Judith R. A. van Rooij, Monica van den Berg, Tamara Vasilkovska, Johan Van Audekerke, Lauren Kosten, Daniele Bertoglio, Mohit H. Adhikari, Marleen Verhoye
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-02-01
Series:Frontiers in Nutrition
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Online Access:https://www.frontiersin.org/articles/10.3389/fnut.2025.1440373/full
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author Judith R. A. van Rooij
Judith R. A. van Rooij
Monica van den Berg
Monica van den Berg
Tamara Vasilkovska
Johan Van Audekerke
Johan Van Audekerke
Lauren Kosten
Daniele Bertoglio
Daniele Bertoglio
Mohit H. Adhikari
Mohit H. Adhikari
Marleen Verhoye
Marleen Verhoye
author_facet Judith R. A. van Rooij
Judith R. A. van Rooij
Monica van den Berg
Monica van den Berg
Tamara Vasilkovska
Johan Van Audekerke
Johan Van Audekerke
Lauren Kosten
Daniele Bertoglio
Daniele Bertoglio
Mohit H. Adhikari
Mohit H. Adhikari
Marleen Verhoye
Marleen Verhoye
author_sort Judith R. A. van Rooij
collection DOAJ
description IntroductionDietary interventions such as caloric restriction (CR) exert positive effects on brain health. Unfortunately, poor compliance hinders the success of this approach. A proposed alternative is resveratrol (Rsv), a CR-mimetic known to promote brain health. Direct comparison between the effects of Rsv and CR on brain health is lacking, with limited knowledge on their sex-specific effects. Therefore, we aimed to compare and unravel the sex-specific impact of these dietary interventions on spontaneous brain activity.MethodsHere, we used resting-state fMRI to investigate functional connectivity (FC) changes in five prominent resting-state brain networks (RSNs) in healthy 4 month old male and female F344 rats supplemented to either 40% CR or daily Rsv supplementation (10 mg/kg, oral) for the duration of 1 month.ResultsOur results demonstrated a decreased body weight (BW) in CR rats, as well as an increase in body weight in male Rsv supplemented rats, compared to female Rsv supplemented rats, whereas this difference between sexes was not observed in the control or CR groups. Furthermore, we found that both CR or Rsv supplementation induce a female-specific decrease of FC between the subcortical network and hippocampal network, and between the subcortical network and lateral cortical network. Moreover, Rsv supplementation lowered FC within the hippocampal network and between the hippocampal and the default mode like network, the lateral cortical network and the sensory network—an effect not observed for the CR rats.DiscussionOur findings reveal that both CR and Rsv induce a similar female-specific decrease of FC in RSNs associated with memory and emotion, all the while CR and Rsv induce dissimilar changes in body weight and other within- and between-RSN FC measures. Altogether, this study provides insight into the effects and comparability of short-term CR and Rsv supplementation on brain connectivity within- and between-RSNs in both male and female F344 rats, providing a FC reference for future research of dietary effects.
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spelling doaj-art-d80f534b315645a7b21b5989798bb69a2025-02-03T05:11:52ZengFrontiers Media S.A.Frontiers in Nutrition2296-861X2025-02-011210.3389/fnut.2025.14403731440373Short-term caloric restriction or resveratrol supplementation alters large-scale brain network connectivity in male and female ratsJudith R. A. van Rooij0Judith R. A. van Rooij1Monica van den Berg2Monica van den Berg3Tamara Vasilkovska4Johan Van Audekerke5Johan Van Audekerke6Lauren Kosten7Daniele Bertoglio8Daniele Bertoglio9Mohit H. Adhikari10Mohit H. Adhikari11Marleen Verhoye12Marleen Verhoye13Bio-Imaging Lab, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, BelgiumμNEURO Research Centre of Excellence, University of Antwerp, Antwerp, BelgiumBio-Imaging Lab, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, BelgiumμNEURO Research Centre of Excellence, University of Antwerp, Antwerp, BelgiumBio-Imaging Lab, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, BelgiumBio-Imaging Lab, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, BelgiumμNEURO Research Centre of Excellence, University of Antwerp, Antwerp, BelgiumBio-Imaging Lab, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, BelgiumBio-Imaging Lab, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, BelgiumμNEURO Research Centre of Excellence, University of Antwerp, Antwerp, BelgiumBio-Imaging Lab, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, BelgiumμNEURO Research Centre of Excellence, University of Antwerp, Antwerp, BelgiumBio-Imaging Lab, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, BelgiumμNEURO Research Centre of Excellence, University of Antwerp, Antwerp, BelgiumIntroductionDietary interventions such as caloric restriction (CR) exert positive effects on brain health. Unfortunately, poor compliance hinders the success of this approach. A proposed alternative is resveratrol (Rsv), a CR-mimetic known to promote brain health. Direct comparison between the effects of Rsv and CR on brain health is lacking, with limited knowledge on their sex-specific effects. Therefore, we aimed to compare and unravel the sex-specific impact of these dietary interventions on spontaneous brain activity.MethodsHere, we used resting-state fMRI to investigate functional connectivity (FC) changes in five prominent resting-state brain networks (RSNs) in healthy 4 month old male and female F344 rats supplemented to either 40% CR or daily Rsv supplementation (10 mg/kg, oral) for the duration of 1 month.ResultsOur results demonstrated a decreased body weight (BW) in CR rats, as well as an increase in body weight in male Rsv supplemented rats, compared to female Rsv supplemented rats, whereas this difference between sexes was not observed in the control or CR groups. Furthermore, we found that both CR or Rsv supplementation induce a female-specific decrease of FC between the subcortical network and hippocampal network, and between the subcortical network and lateral cortical network. Moreover, Rsv supplementation lowered FC within the hippocampal network and between the hippocampal and the default mode like network, the lateral cortical network and the sensory network—an effect not observed for the CR rats.DiscussionOur findings reveal that both CR and Rsv induce a similar female-specific decrease of FC in RSNs associated with memory and emotion, all the while CR and Rsv induce dissimilar changes in body weight and other within- and between-RSN FC measures. Altogether, this study provides insight into the effects and comparability of short-term CR and Rsv supplementation on brain connectivity within- and between-RSNs in both male and female F344 rats, providing a FC reference for future research of dietary effects.https://www.frontiersin.org/articles/10.3389/fnut.2025.1440373/fullcaloric restrictionresveratrolresting-state functional MRIresting-state networksfunctional connectivity
spellingShingle Judith R. A. van Rooij
Judith R. A. van Rooij
Monica van den Berg
Monica van den Berg
Tamara Vasilkovska
Johan Van Audekerke
Johan Van Audekerke
Lauren Kosten
Daniele Bertoglio
Daniele Bertoglio
Mohit H. Adhikari
Mohit H. Adhikari
Marleen Verhoye
Marleen Verhoye
Short-term caloric restriction or resveratrol supplementation alters large-scale brain network connectivity in male and female rats
Frontiers in Nutrition
caloric restriction
resveratrol
resting-state functional MRI
resting-state networks
functional connectivity
title Short-term caloric restriction or resveratrol supplementation alters large-scale brain network connectivity in male and female rats
title_full Short-term caloric restriction or resveratrol supplementation alters large-scale brain network connectivity in male and female rats
title_fullStr Short-term caloric restriction or resveratrol supplementation alters large-scale brain network connectivity in male and female rats
title_full_unstemmed Short-term caloric restriction or resveratrol supplementation alters large-scale brain network connectivity in male and female rats
title_short Short-term caloric restriction or resveratrol supplementation alters large-scale brain network connectivity in male and female rats
title_sort short term caloric restriction or resveratrol supplementation alters large scale brain network connectivity in male and female rats
topic caloric restriction
resveratrol
resting-state functional MRI
resting-state networks
functional connectivity
url https://www.frontiersin.org/articles/10.3389/fnut.2025.1440373/full
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