Evidence map›Paper›PMID 30849937›Full record

ArticleBMC genomics2019

Genome-wide methylation is modified by caloric restriction in Daphnia magna.

Jack Hearn, Marianne Pearson, Mark Blaxter, Philip J Wilson, Tom J Little

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

16 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
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  4. Dietary restriction in senolysis and prevention and treatment of disease.Critical reviews in food science and nutrition · 2024
    Review
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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

5 authors at 3 institutions in 2 countries.

Jack HearnDepartment of Vector Biology, Liverpool School of Tropical Medicine, Liverpool, UK. Jack.Hearn@lstmed.ac.uk.ORCID http://orcid.org/0000-0003-3358-4949
Marianne PearsonInstitute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK.
Mark BlaxterInstitute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK.
Philip J WilsonSchool of Energy, Geoscience, Infrastructure & Environment, Heriot-Watt University, Edinburgh, UK.
Tom J LittleInstitute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK.
University of Edinburgh · GBHeriot-Watt University · GBLiverpool School of Tropical Medicine · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe degradation of epigenetic control with age is associated with progressive diseases of ageing, including cancers, immunodeficiency and diabetes. Reduced caloric intake slows the effects of ageing and age-related disease in vertebrates and invertebrates, a process potentially mediated by the impact of caloric restriction on epigenetic factors such as DNA methylation. We used whole genome bisulphite sequencing to study how DNA methylation patterns change with diet in a small invertebrate, the crustacean Daphnia magna. Daphnia show the classic response of longer life under caloric restriction (CR), and they reproduce clonally, which permits the study of epigenetic changes in the absence of genetic variation.

resultsGlobal cytosine followed by guanine (CpG) methylation was 0.7-0.9%, and there was no difference in overall methylation levels between normal and calorie restricted replicates. However, 333 differentially methylated regions (DMRs) were evident between the normally fed and CR replicates post-filtering. Of these 65% were hypomethylated in the CR group, and 35% were hypermethylated in the CR group.

conclusionsOur results demonstrate an effect of CR on the genome-wide methylation profile. This adds to a growing body of research in Daphnia magna that demonstrate an epigenomic response to environmental stimuli. Specifically, gene Ontology (GO) term enrichment of genes associated with hyper and hypo-methylated DMRs showed significant enrichment for methylation and acyl-CoA dehydrogenase activity, which are linked to current understanding of their roles in CR in invertebrate model organisms.

Indexed as

Caloric RestrictionDNA MethylationGenomicsAnimalsDaphniaGene OntologyBisulphite sequencingCaloric restrictionDaphniaDifferential methylationDNA methylationEpigeneticsGenomicsNutrition

Identifiers

PMID30849937
PMCPMC6408862
OpenAlexW2921380850

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.