Evidence map›Paper›PMID 25929254›Full record

ArticleBMC medical genetics2015

Leptin and adiponectin DNA methylation levels in adipose tissues and blood cells are associated with BMI, waist girth and LDL-cholesterol levels in severely obese men and women.

Andrée-Anne Houde, Cécilia Légaré, Simon Biron, Odette Lescelleur, Laurent Biertho, Simon Marceau, André Tchernof, Marie-Claude Vohl, Marie-France Hivert, Luigi Bouchard

Open access · goldAbstract read
In one paragraph

Article in BMC medical genetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 1 pooled it
7.4field-weighted citation impact, top 2% 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

65 citing papers in PubMed, 1 synthesis or guideline pooled it, 141 citations in OpenAlex.

  1. Pooled it
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  12. Sex-based differences in short- and longer-term diet-induced metabolic heart disease.American journal of physiology. Heart and circulatory physiology · 2024
    Article
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  15. Next-Cell Hypothesis: Mechanism of Obesity-Associated Carcinogenesis.Advances in experimental medicine and biology · 2024
    Review
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5 more citing papers are in PubMed but not listed here.

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

10 authors at 4 institutions in 1 country.

Andrée-Anne HoudeDepartment of Biochemistry, Université de Sherbrooke, Sherbrooke, QC, Canada. andree-anne.houde@usherbrooke.ca.
Cécilia LégaréDepartment of Biochemistry, Université de Sherbrooke, Sherbrooke, QC, Canada. cecilia.legare@usherbrooke.ca.
Simon BironQuebec Heart and Lung Institute, Quebec, Canada. simon.biron@chg.ulaval.ca.
Odette LescelleurQuebec Heart and Lung Institute, Quebec, Canada. odette.lescelleur@criucpq.ulaval.ca.
Laurent BierthoQuebec Heart and Lung Institute, Quebec, Canada. laurentbiertho@gmail.com.
Simon MarceauQuebec Heart and Lung Institute, Quebec, Canada. simon.marceau@ssss.gouv.qc.ca.
André TchernofQuebec Heart and Lung Institute, Quebec, Canada. andre.tchernof@criucpq.ulaval.ca.
Marie-Claude VohlAxe Endocrinologie et Néphrologie, Centre de recherche du CHU de Québec, Quebec, QC, Canada. marie-claude.vohl@fsaa.ulaval.ca.
Marie-France HivertDepartment of Medicine, Division of Endocrinology, Université de Sherbrooke, Sherbrooke, QC, Canada. marie-france.hivert@usherbrooke.ca.
Luigi BouchardDepartment of Biochemistry, Université de Sherbrooke, Sherbrooke, QC, Canada. luigi.bouchard@usherbrooke.ca.
Montreal Heart Institute · CAUniversité de Sherbrooke · CACégep de Chicoutimi · CACentre hospitalier universitaire de Québec · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

backgroundLeptin (LEP) and adiponectin (ADIPOQ) genes encode adipokines that are mainly secreted by adipose tissues, involved in energy balance and suspected to play a role in the pathways linking adiposity to impaired glucose and insulin homeostasis. We have thus hypothesized that LEP and ADIPOQ DNA methylation changes might be involved in obesity development and its related complications. The objective of this study was to assess whether LEP and ADIPOQ DNA methylation levels measured in subcutaneous (SAT) and visceral adipose tissues (VAT) are associated with anthropometric measures and metabolic profile in severely obese men and women. These analyses were repeated with DNA methylation profiles from blood cells obtained from the same individuals to determine whether they showed similarities.

methodsPaired SAT, VAT and blood samples were obtained from 73 severely obese patients undergoing a bioliopancreatic diversion with duodenal switch. LEP and ADIPOQ DNA methylation and mRNA levels were quantified using bisulfite-pyrosequencing and qRT-PCR respectively. Pearson's correlation coefficients were computed to determine the associations between LEP and ADIPOQ DNA methylation levels, anthropometric measures and metabolic profile.

resultsDNA methylation levels at the ADIPOQ gene locus in SAT was positively associated with BMI and waist girth whereas LEP DNA methylation levels in blood cells were negatively associated with body mass index (BMI). Fasting LDL-C levels were found to be positively correlated with DNA methylation levels at LEP-CpG11 and -CpG17 in blood and SAT and with ADIPOQ DNA methylation levels in SAT (CpGE1 and CpGE3) and VAT (CpGE1).

conclusionsThese results confirm that LEP and ADIPOQ epigenetic profiles are associated with obesity. We also report associations between LDL-C levels and both LEP and ADIPOQ DNA methylation levels suggesting that LDL-C might regulate their epigenetic profiles in adipose tissues. Furthermore, similar correlations were observed between LDL-C and LEP blood DNA methylation levels suggesting a common regulatory pathway of DNA methylation in both adipose tissues and blood.

Indexed as

Body SizeDNA MethylationAdiponectinAdipose TissueAdultBody Mass IndexCholesterol, LDLEpigenesis, GeneticFemaleHumansIntra-Abdominal FatLeptinMaleMiddle AgedObesityRNA, MessengerAdiponectinCholesterol, LDLLeptinRNA, Messenger

Identifiers

PMID25929254
PMCPMC4631085
OpenAlexW2135748243

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.