Evidence map›Paper›PMID 26694192›Full record

ArticleGenome biology2015

Transcriptome analysis in calorie-restricted rats implicates epigenetic and post-translational mechanisms in neuroprotection and aging.

Shona H Wood, Sipko van Dam, Thomas Craig, Robi Tacutu, Amy O'Toole, Brian J Merry, João Pedro de Magalhães

Open access · goldAbstract read
In one paragraph

Article in Genome biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
3.6field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

41 citing papers in PubMed, 74 citations in OpenAlex.

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  4. Changes in the brain [NADFrontiers in aging neuroscience · 2026
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  19. Caloric restriction induced epigenetic effects on aging.Frontiers in cell and developmental biology · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Shona H WoodIntegrative Genomics of Ageing Group, Institute of Integrative Biology, University of Liverpool, Liverpool, UK.
Sipko van DamIntegrative Genomics of Ageing Group, Institute of Integrative Biology, University of Liverpool, Liverpool, UK.
Thomas CraigIntegrative Genomics of Ageing Group, Institute of Integrative Biology, University of Liverpool, Liverpool, UK.
Robi TacutuIntegrative Genomics of Ageing Group, Institute of Integrative Biology, University of Liverpool, Liverpool, UK.
Amy O'TooleIntegrative Genomics of Ageing Group, Institute of Integrative Biology, University of Liverpool, Liverpool, UK.
Brian J MerryIntegrative Genomics of Ageing Group, Institute of Integrative Biology, University of Liverpool, Liverpool, UK.
João Pedro de MagalhãesIntegrative Genomics of Ageing Group, Institute of Integrative Biology, University of Liverpool, Liverpool, UK. jp@senescence.info.
University of Liverpool · GBGenomics (United Kingdom) · GB

Funding

Biotechnology and Biological Sciences Research Council BB/H008497/1Biotechnology and Biological Sciences Research Council ERA164170
6 · The paper itself

Abstract

backgroundCaloric restriction (CR) can increase longevity in rodents and improve memory function in humans. α-Lipoic acid (LA) has been shown to improve memory function in rats, but not longevity. While studies have looked at survival in rodents after switching from one diet to another, the underlying mechanisms of the beneficial effects of CR and LA supplementation are unknown. Here, we use RNA-seq in cerebral cortex from rats subjected to CR and LA-supplemented rats to understand how changes in diet can affect aging, neurodegeneration and longevity.

resultsGene expression changes during aging in ad libitum-fed rats are largely prevented by CR, and neuroprotective genes are overexpressed in response to both CR and LA diets with a strong overlap of differentially expressed genes between the two diets. Moreover, a number of genes are differentially expressed specifically in rat cohorts exhibiting diet-induced life extension. Finally, we observe that LA supplementation inhibits histone deacetylase (HDAC) protein activity in vitro in rat astrocytes. We find a single microRNA, miR-98-3p, that is overexpressed during CR feeding and LA dietary supplementation; this microRNA alters HDAC and histone acetyltransferase (HAT) activity, which suggests a role for HAT/HDAC homeostasis in neuroprotection.

conclusionsThis study presents extensive data on the effects of diet and aging on the cerebral cortex transcriptome, and also emphasises the importance of epigenetics and post-translational modifications in longevity and neuroprotection.

Indexed as

Caloric RestrictionEpigenesis, GeneticLongevityTranscriptomeAnimalsCerebral CortexHistone AcetyltransferasesHistone DeacetylasesMaleRatsRats, Inbred BNThioctic AcidHistone AcetyltransferasesHistone DeacetylasesThioctic Acid

Identifiers

PMID26694192
PMCPMC4699360
OpenAlexW2209220122

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.