Cited by 101Circadian rhythm and melatoninNutrition, Genetics, and DiseaseRegulation of Appetite and Obesity

Genetic variants in human CLOCK associate with total energy intake and cytokine sleep factors in overweight subjects (GOLDN population)

Open access
Garaulet, Marta, Lee, Yu-Chi, Shen, Jian, Parnell, Laurence D, Arnett, Donna K, Tsai, Michael Y, Lai, Chao-Qiang, Ordovas, Jose M·2010·European Journal of Human Genetics

Abstract

Despite the importance of total energy intake in circadian system regulation, no study has related human CLOCK gene polymorphisms and food-intake measures. The aim of this study was to analyze the associations of CLOCK single-nucleotide polymorphisms (SNPs) with food intake and to explore the specific role of the cytokine system. A total of 1100 individual participants in the Genetics of Lipid Lowering Drugs and Diet Network (GOLDN) study were included. Dietary intake was estimated with a validated questionnaire. Interleukin-6 (IL-6), monocyte chemotactic protein 1 (MCP1), tumor necrosis factor-alpha (TNF-alpha), IL-2 soluble receptor-alpha (IL-2sR-alpha) and adiponectin plasma concentrations were measured. Our results showed that four of five CLOCK SNPs selected were significantly associated with total energy intake (P<0.05). For SNP rs3749474, the energy intake and total fat, protein and carbohydrate intakes were significantly higher in minor allele carriers than in non-carriers. Frequency of the minor allele was greater in subjects with high energy intake than in those with low intake. Subjects with the minor allele were 1.33 times more likely to have high energy intake than non-carriers (95% CI 1.09-1.72, P=0.0350). All CLOCK SNPs were associated with plasma cytokine values, in particular with those that were highly correlated with energy intake: MCP1, IL-6 and adiponectin. Interestingly, minor allele carriers with high energy intake showed decreased cytokine values, which could be related with a lower anorectic effect and decreased sleep in these subjects. In conclusion, we show a novel association of genetic variation at CLOCK with total energy intake, which was particularly relevant for SNP rs3749474. Associations could be mediated through the alteration of cytokine levels that may influence energy intake and sleep pattern.

Integrity signals

Registry

Crossref · 10.1038/ejhg.2009.176

Cites

46 of 46 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • All CLOCK SNPs were associated with plasma cytokine concentrations, particularly monocyte chemotactic protein 1, IL-6, and adiponectin.

    “Moreover, all CLOCK SNPs were associated with plasma cytokine concentrations, in particular with those that were highly correlated with energy intake (i.e., monocyte chemotactic protein 1, IL-6, and adiponectin).”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Garaulet, M., Lee, Y.-C., Shen, J., Parnell, L. D., Arnett, D. K., Tsai, M. Y., Lai, C.-Q., & Ordovas, J. M.
Affiliations
  • Tufts University (US)
  • University of Alabama at Birmingham (US)
  • University of Minnesota (US)
Corresponding author
Garaulet, Marta
Venue
European Journal of Human Genetics
Published
2009-11-04
Volume
18
Issue
3
Pages
364-369
ISSN
  • 1018-4813 (ISSN-L)
  • 1476-5438
OpenAlex
W2141743988
Cited by
101
References
46
Citations by year
2026: 2 · 2025: 1 · 2024: 6 · 2023: 6 · 2022: 7 · 2021: 8 · 2020: 8 · 2019: 2 · 2018: 5 · 2017: 5 · 2016: 6 · 2015: 8 · 2014: 8 · 2013: 5 · 2012: 7
FWCI
3.59
Type
journal article
Language
en
Open access
Locations
  • European Journal of Human Genetics (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of Agriculture (58-1950-9-001, 53‐K06‐5‐10)
  • Fundación Séneca (02934/PI/05)
  • National Institutes of Health (58-1950-9-001, DK075030)
  • National Heart, Lung, and Blood Institute (U 01 HL72524, U01 HL-54776, U01HL072524, R01HL054776)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK-075030, R01DK075030)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Nutrition, Genetics, and Disease
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
Keywords
clock genes, single nucleotide polymorphisms, total energy intake, dietary intake, cytokines, interleukin-6, MCP-1, TNF-α, adiponectin, overweight, circadian rhythm, sleep
MeSH terms
Energy Intake, Female, Genotype, Humans, Interleukins, Male, Sleep, Genetic Variation, Linkage Disequilibrium, Cytokines, Polymorphism, Single Nucleotide, Overweight, CLOCK Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review