Evidence map›Paper›PMID 26086344›Full record

ArticleBrain, behavior, and immunity2015

Genetic and environmental determinants of population variation in interleukin-6, its soluble receptor and C-reactive protein: insights from identical and fraternal twins.

Wellington Z Amaral, Robert F Krueger, Carol D Ryff, Christopher L Coe

Abstract readTwin Study
In one paragraph

Article in Brain, behavior, and immunity, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. The role of IL-6 in atherosclerosis: a narrative review.Frontiers in cardiovascular medicine · 2026
    Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Observational
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. IL-6: a cytokine at the crossroads of autoimmunity.Current opinion in immunology · 2018
    Review
  18. Article
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

4 authors.

Wellington Z AmaralDepartment of Psychology, University of Wisconsin-Madison, Madison, WI 53715, USA.
Robert F KruegerDepartment of Psychology, University of Minnesota, Minneapolis, MN 55455, USA. Electronic address: krueg038@umn.edu.
Carol D RyffDepartment of Psychology, University of Wisconsin-Madison, Madison, WI 53715, USA. Electronic address: cryff@wisc.edu.
Christopher L CoeDepartment of Psychology, University of Wisconsin-Madison, Madison, WI 53715, USA. Electronic address: ccoe@wisc.edu.

Funding

U19 MIDlife in the United States-Diversity Supplement-WellsU19AG051426 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI CAROL D. RYFF · 2016 to 2026
$74.8M
STATISTICS COREP01AG020166 · NIA · UNIVERSITY OF WISCONSIN-MADISON · PI RYFF, CAROL D. · 2002 to 2015
$50.6M
ZDV &3TC NEVIRAPINE COMBINATION THERAPY IN HIV 1 INFECTED INFANTS &M01RR000865 · NCRR · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI WASHINGTON, ARNOLD E. · 1985 to 2011
$43.4M
INSTITUTIONAL CTSA (UW-MADISON): CLINICAL TRIALSUL1RR025011 · NCRR · UNIVERSITY OF WISCONSIN-MADISON · PI DREZNER, MARC KENNETH · 2007 to 2011
$29.5M
TRAINING PROGRAM IN EMOTION RESEARCHT32MH018931 · NIMH · UNIVERSITY OF WISCONSIN-MADISON · PI Richard J Davidson · 1989 to 2026
$11.6M
WIHS INTENSIVE PHARMACOKINETIC STUDY (IPS)M01RR023942 · NCRR · GEORGETOWN UNIVERSITY · PI FEDEROFF, HOWARD J. · 2007 to 2009
$6.9M
NCRR NIH HHS 1UL1RR025011NCRR NIH HHS M01 RR000865NCRR NIH HHS M01-RR00865NCRR NIH HHS M01 RR023942NCRR NIH HHS M01-RR023942NCRR NIH HHS UL1 RR025011NIA NIH HHS P01 AG020166NIA NIH HHS U19 AG051426NIMH NIH HHS 5T32 MH018931NIMH NIH HHS T32 MH018931
6 · The paper itself

Abstract

Interleukin-6 and C-reactive protein are commonly assessed biomarkers linked to illness, obesity, and stressful life events. However, relatively little is known about their heritability. By comparing Caucasian twins from the Midlife in the US project (MIDUS), we estimated the heritability of IL-6, its soluble receptor, and CRP. Based on the hypothesis that adiposity might contribute more to IL-6 than to sIL-6r, we fit heritability models quantifying the extent to which each reflected genetic and environmental factors shared with obesity. Genetic influences on IL-6 and its receptor proved to be distinct. Further, the appearance of a heritable basis for IL-6 was mediated largely via shared paths with obesity. Supporting this conclusion, we confirmed that when unrelated adult controls are carefully matched to twin participants on BMI, age, gender and socioeconomic indices, their IL-6 is similar to the corresponding twins. In contrast, the effect of BMI on CRP was split between shared genetics and environmental influences. In conclusion, IL-6 is strongly affected by factors associated with obesity accounting for its lability and responsiveness to diet, life style and contemporaneous events.

Indexed as

Gene-Environment InteractionBody Mass IndexC-Reactive ProteinFemaleHumansInterleukin-6MaleMiddle AgedObesityReceptors, Interleukin-6TwinsUnited StatesWhite PeopleC-Reactive ProteinInterleukin-6Receptors, Interleukin-6C-reactive proteinHeritabilityInterleukin-6ObesitySoluble interleukin-6 receptorTwins

Identifiers

PMID26086344
PMCPMC4567498

What OpenQuestion holds

Textmetadata
LicenceTDM
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.