Cited by 93Circadian rhythm and melatoninAdipokines, Inflammation, and Metabolic DiseasesAdipose Tissue and Metabolism

Global loss of bmal1 expression alters adipose tissue hormones, gene expression and glucose metabolism

Open access
Kennaway, David John, Varcoe, Tamara Jayne, Voultsios, Athena, Boden, Michael James·2013·PLoS ONE

Abstract

The close relationship between circadian rhythm disruption and poor metabolic status is becoming increasingly evident, but role of adipokines is poorly understood. Here we investigated adipocyte function and the metabolic status of mice with a global loss of the core clock gene Bmal1 fed either a normal or a high fat diet (22% by weight). Bmal1 null mice aged 2 months were killed across 24 hours and plasma adiponectin and leptin, and adipose tissue expression of Adipoq, Lep, Retn and Nampt mRNA measured. Glucose, insulin and pyruvate tolerance tests were conducted and the expression of liver glycolytic and gluconeogenic enzyme mRNA determined. Bmal1 null mice displayed a pattern of increased plasma adiponectin and plasma leptin concentrations on both control and high fat diets. Bmal1 null male and female mice displayed increased adiposity (1.8 fold and 2.3 fold respectively) on the normal diet, but the high fat diet did not exaggerate these differences. Despite normal glucose and insulin tolerance, Bmal1 null mice had increased production of glucose from pyruvate, implying increased liver gluconeogenesis. The Bmal1 null mice had arrhythmic clock gene expression in epigonadal fat and liver, and loss of rhythmic transcription of a range of metabolic genes. Furthermore, the expression of epigonadal fat Adipoq, Retn, Nampt, AdipoR1 and AdipoR2 and liver Pfkfb3 mRNA were down-regulated. These results show for the first time that global loss of Bmal1, and the consequent arrhythmicity, results in compensatory changes in adipokines involved in the cellular control of glucose metabolism.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1371/journal.pone.0065255

Cites

37 of 37 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

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?

  • Whole-body Bmal1 knockout mice show fasting hypoglycemia, reduced plasma insulin levels and increased adiposity.

    “whole-body knockout (KO) mice of Bmal1 show fasting hypoglycemia, reduced plasma insulin levels, increased adiposity [16–18].”

    From Circadian control of glucose metabolism (2014) · cites this paper as [18]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

2 of the 39 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Kennaway, D. J., Varcoe, T. J., Voultsios, A., & Boden, M. J.
Affiliations
The University of Adelaide (AU)
Corresponding author
Kennaway, David John
Venue
PLoS ONE
Published
2013-06-04
Volume
8
Issue
6
Pages
e65255
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2075783271
Cited by
93
References
39
Citations by year
2026: 5 · 2025: 6 · 2024: 5 · 2023: 5 · 2022: 6 · 2021: 6 · 2020: 8 · 2019: 5 · 2018: 4 · 2017: 11 · 2016: 9 · 2015: 13 · 2014: 9
FWCI
5.59
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Adelaide Research & Scholarship (AR&S) (University of Adelaide) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Medical Research Council
  • National Health and Medical Research Council (399131)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
Bmal1, circadian clock, adipose tissue, adipokines, adiponectin, leptin, high-fat diet, adiposity, glucose metabolism, gluconeogenesis, pyruvate tolerance, insulin tolerance, clock gene expression, adipose tissue gene expression, hepatic gene expression, PFKFB3, AdipoR1, AdipoR2, visfatin, resistin
MeSH terms
Adipose Tissue, Animals, Body Weight, Fatty Acids, Nonesterified, Female, Gene Expression Regulation, Glucose, Glucose Tolerance Test, Glycolysis, Insulin, Insulin Resistance, Liver, Male, RNA, Messenger, Pyruvic Acid, Mice, Adipokines, ARNTL Transcription Factors, Diet, High-Fat

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