Evidence map›Paper›PMID 23107313›Full record

ArticleThe Journal of nutritional biochemistry2013

Maternal fat intake in rats alters 20:4n-6 and 22:6n-3 status and the epigenetic regulation of Fads2 in offspring liver.

Samuel P Hoile, Nicola A Irvine, Christopher J Kelsall, Charlene Sibbons, Aurélie Feunteun, Alex Collister, Christopher Torrens, Philip C Calder, Mark A Hanson, Karen A Lillycrop and 1 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of nutritional biochemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
17.9field-weighted citation impact, top 1% 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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 112 citations in OpenAlex.

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  18. Allele-specific methylation in theClinical epigenetics · 2018
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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

11 authors at 1 institution in 1 country.

Samuel P HoileAcademic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK.
Nicola A Irvine
Christopher J Kelsall
Charlene Sibbons
Aurélie Feunteun
Alex Collister
Christopher Torrens
Philip C Calder
Mark A Hanson
Karen A Lillycrop
Graham C Burdge
University of Southampton · GB

Funding

British Heart Foundation PG/08/126/26417
6 · The paper itself

Abstract

Poor prenatal nutrition, acting through epigenetic processes, induces persistent changes in offspring phenotype. We investigated the effect of maternal fat intake on polyunsaturated fatty acid (PUFA) status and on the epigenetic regulation of Fads2, encoding Δ6 desaturase (rate limiting in PUFA synthesis), in the adult offspring. Rats (n=6 per dietary group) were fed either 3.5% (w/w), 7% (w/w) or 21% (w/w) butter or fish oil (FO) from 14 days preconception until weaning. Offspring (n=6 males and females per dietary group) were fed 4% (w/w) soybean oil until postnatal day 77. 20:4n-6 and 22:6n-3 levels were lower in liver phosphatidylcholine (PC) and phosphatidylethanolamine and plasma PC (all P<.0001) in offspring of dams fed 21% than 3.5% or 7% fat regardless of type. Hepatic Fads2 expression related inversely to maternal dietary fat. Fads2 messenger RNA expression correlated negatively with methylation of CpGs at -623, -394, -84 and -76 bases relative to the transcription start site (all P<.005). Methylation of these CpGs was higher in offspring of dams fed 21% than 3.5% or 7% fat; FO higher than butter. Feeding adult female rats 7% fat reduced 20:4n-6 status in liver PC and Fads2 expression and increased methylation of CpGs -623, -394, -84 and -76 that reversed in animals switched from 7% to 4% fat diets. These findings suggest that fat exposure during development induces persistent changes, while adults exhibit a transient response, in hepatic PUFA status in offspring through epigenetic regulation of Fads2. Thus, epigenetic regulation of Fads2 may contribute to short- and long-term regulation of PUFA synthesis.

Indexed as

Epigenesis, GeneticGene Expression RegulationMaternal ExposureAnimalsCpG IslandsDietary FatsFatty Acids, Omega-3Fatty Acids, Omega-6FemaleLiverMalePregnancyPromoter Regions, GeneticRatsRats, WistarReal-Time Polymerase Chain Reactiondelta 6-desaturase, ratDietary FatsFatty Acids, Omega-3Fatty Acids, Omega-6RNA, MessengerStearoyl-CoA Desaturase

Identifiers

PMID23107313
PMCPMC3698442
OpenAlexW2049903859

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.