Evidence map›Paper›PMID 30215712›Full record

ArticleHuman molecular genetics2019

Investigating the impact of cigarette smoking behaviours on DNA methylation patterns in adolescence.

Claire Prince, Gemma Hammerton, Amy E Taylor, Emma L Anderson, Nicholas J Timpson, George Davey Smith, Marcus R Munafò, Caroline L Relton, Rebecca C Richmond

Open access · hybridAbstract read
In one paragraph

Article in Human molecular genetics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 9% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

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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

9 authors at 3 institutions in 1 country.

Claire PrinceMedical School, University of Exeter, Exeter, UK.
Gemma HammertonPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
Amy E TaylorPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
Emma L AndersonPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
Nicholas J TimpsonPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
George Davey SmithPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
Marcus R MunafòMRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK.
Caroline L ReltonPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
Rebecca C RichmondPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.
MRC Epidemiology Unit · GBUniversity of Bristol · GBUniversity of Exeter · GB

Funding

Cancer Research UK 19169Cancer Research UK 22171Cancer Research UK C18281/A19169Cancer Research UK C57854/A22171Medical Research Council 102215/2/13/2Medical Research Council G9815508Medical Research Council MC_UU_00011/5Medical Research Council MC_UU_00011/7Medical Research Council MC_UU_12013/1Medical Research Council MC_UU_12013/2Medical Research Council MC_UU_12013/6Medical Research Council MR/K023195/1Medical Research Council MR/P014437/1Wellcome Trust 202802/Z/16/ZWellcome Trust 209138/Z/17/Z
6 · The paper itself

Abstract

Smoking usually begins in adolescence, and early onset of smoking has been linked to increased risk of later life disease. There is a need to better understand the biological impact of cigarette smoking behaviours in adolescence. DNA methylation profiles related to smoking behaviours and cessation in adulthood have been previously identified, but alterations arising from smoking initiation have not been thoroughly investigated. We aimed to investigate DNA methylation in the Avon Longitudinal Study of Parents and Children in relation to (1) different smoking measures, (2) time since smoking initiation and frequency of smoke exposure and (3) latent classes of smoking behaviour. Using 2620 CpG sites previously associated with cigarette smoking, we investigated DNA methylation change in relation to own smoking measures, smoke exposure duration and frequency, and using longitudinal latent class analysis of different smoking behaviour patterns in 968 adolescents. Eleven CpG sites located in seven gene regions were differentially methylated in relation to smoking in adolescence. While only AHRR (cg05575921) showed a robust pattern of methylation in relation to weekly smoking, several CpGs showed differences in methylation among individuals who had tried smoking compared with non-smokers. In relation to smoke exposure duration and frequency, cg05575921 showed a strong dose-response relationship, while there was evidence for more immediate methylation change at other sites. Our findings illustrate the impact of cigarette smoking behaviours on DNA methylation at some smoking-responsive CpG sites, even among individuals with a short smoking history.

Indexed as

AdolescentCigarette SmokingCohort StudiesCpG IslandsDNA MethylationEpigenesis, GeneticFemaleHumansLongitudinal StudiesMaleNicotianaSmokingSurveys and Questionnaires

Identifiers

PMID30215712
PMCPMC6298233
OpenAlexW2889664164

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.