Cited by 128Peroxisome Proliferator-Activated ReceptorsCholesterol and Lipid MetabolismParaoxonase enzyme and polymorphisms

Low-Intensity Exercise Exerts Beneficial Effects on Plasma Lipids via PPARγ

BUTCHER, LEE R., THOMAS, ANDREW, BACKX, KARIANNE, ROBERTS, ALED, WEBB, RICHARD, MORRIS, KEITH·2008·Medicine & Science in Sports & Exercise

Abstract

INTRODUCTION: An important mechanism by which physical activity reduces the risk of cardiovascular disease is through regulating plasma lipids. We investigated whether low-intensity exercise modulates lipid metabolism and the transcription factors peroxisome proliferator-activated receptor gamma (PPARgamma) and liver X receptor alpha (LXRalpha) responsible for controlling reverse cholesterol transport (RCT). METHODS: Thirty-four sedentary adults, mean age 45.6 +/- 11.1 yr, participated in an 8-wk low-intensity exercise program consisting of walking 10,000 steps, three times a week. Subjects were randomly allocated to either an exercise group or a sedentary control group, and serum lipid or lipoprotein concentrations were determined. RESULTS: Compared with controls, there was a significant decrease in total cholesterol (preexercise, 5.73 +/- 1.39 mmol x L; postexercise, 5.32 +/- 1.28 mmol x L) and a significant increase in HDL (preexercise, 1.46 +/- 0.47 mmol x L; postexercise, 1.56 +/- 0.50 mmol x L) after the exercise program. There was a significant increase in serum oxidized LDL (oxLDL) concentrations in the exercise group before and after exercise (0 wk, 554 +/- 107 ng x mL; 4 wk, 698 +/- 134 ng x mL; 8 wk, 588 +/- 145 ng x mL). A significant increase in leukocyte mRNA expression for PPARgamma (4 wk, 1.8 +/- 0.9-fold; 8 wk, 4.3 +/- 1.9-fold) was observed, which was reinforced by increased PPARgamma DNA-binding activity postexercise (preexercise, 0.22 +/- 0.09 OD units; postexercise, 1.13 +/- 0.29 OD units). A significant increase in gene expression was observed for the oxLDL scavenger receptor CD36 (4 wk, 3.8 +/- 0.6-fold; 8 wk, 2.7 +/- 0.5-fold) and LXRalpha (8 wk, 3.5 +/- 0.8-fold). Two LXRalpha-regulated genes involved in RCT, namely, ATP-binding cassette transporters A1 and GI (ABCA1 and ABCG1, respectively), were significantly up-regulated postexercise (8 wk: ABCA1, 3.46 +/- 0.56-fold; ABCG1, 3.06 +/- 0.47-fold). CONCLUSION: We propose that the net effect of these changes may be to increase oxLDL uptake, to stimulate RCT, and thus to promote clearance of proatherogenic lipids from the vasculature, ultimately contributing to the cardiovascular benefits of low-intensity aerobic exercise.

Integrity signals

Registry

Crossref · 10.1249/mss.0b013e31816c091d

Cites

38 of 38 references verified0 citation errors · 0 not checkable

Statistics

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

Claims the paper makes

This paper’s full text isn’t openly available, 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?

  • Low intensity exercise results in a significant increase in LXR expression in humans.

    “A study reported that low intensity exercise resulted in significant increase in LXR expression in human [71].”

    From Effects of aerobic exercise on lipids and lipoproteins (2017) · cites this paper as [71]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
BUTCHER, L. R., THOMAS, A., BACKX, K., ROBERTS, A., WEBB, R., & MORRIS, K.
Affiliations
  • Cardiff University (GB)
  • Cardiff Metropolitan University (GB)
Venue
Medicine & Science in Sports & Exercise
Published
2008-07
Volume
40
Issue
7
Pages
1263-1270
ISSN
0195-9131 (ISSN-L)
OpenAlex
W1966394156
Cited by
128
References
38
Citations by year
2026: 1 · 2025: 4 · 2024: 6 · 2023: 9 · 2022: 2 · 2021: 10 · 2020: 10 · 2019: 10 · 2018: 9 · 2017: 6 · 2016: 9 · 2015: 7 · 2014: 9 · 2013: 11 · 2012: 11
FWCI
1.92
Type
journal article
Language
en
Open access
closed
Locations
  • Medicine & Science in Sports & Exercise (publishedVersion)
  • PubMed (publishedVersion)
  • Cardiff Metropolitan Research Repository (Cardiff Metropolitan University) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Paraoxonase enzyme and polymorphisms
Keywords
low-intensity exercise, walking, plasma lipids, PPARγ, liver X receptor alpha, reverse cholesterol transport, HDL cholesterol, total cholesterol, oxidized LDL, CD36, ABCA1, ABCG1, leukocyte gene expression, lipid metabolism, cardiovascular risk, sedentary adults, transcription factors, DNA-binding activity, ABCA13, ABCG4
MeSH terms
Liver X Receptors, Adult, Analysis of Variance, Female, Humans, Lipids, Male, Middle Aged, RNA, Messenger, Exercise, Gene Expression, Case-Control Studies, Walking, Sequence Alignment, Program Development, CD36 Antigens, PPAR gamma, Orphan Nuclear Receptors, Sedentary Behavior

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