Evidence map›Paper›PMID 22721353›Full record

Trial reportLipids in health and disease2012

Functional changes in adipose tissue in a randomised controlled trial of physical activity.

Per Sjögren, Justo Sierra-Johnson, Lena V Kallings, Tommy Cederholm, Maria Kolak, Mats Halldin, Kerstin Brismar, Ulf de Faire, Mai-Lis Hellénius, Rachel M Fisher

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Lipids in health and disease, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 3 pooled it
0.4field-weighted citation impact, top 32% 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

14 citing papers in PubMed, 3 syntheses or guidelines pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Review
  5. Review
  6. Article
  7. The Role of Adipokines in Inflammatory Mechanisms of Obesity.International journal of molecular sciences · 2022
    Review
  8. Article
  9. Fatty acid uptake inFrontiers in cellular and infection microbiology · 2022
    Review
  10. Article
  11. The Beige Adipocyte as a Therapy for Metabolic Diseases.International journal of molecular sciences · 2019
    Review
  12. Review
  13. Review
  14. 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

10 authors at 2 institutions in 2 countries.

Per SjögrenAtherosclerosis Research Unit,, Department of Medicine, (Solna) Karolinska Institutet, Stockholm, Sweden.
Justo Sierra-Johnson
Lena V Kallings
Tommy Cederholm
Maria Kolak
Mats Halldin
Kerstin Brismar
Ulf de Faire
Mai-Lis Hellénius
Rachel M Fisher
Karolinska Institutet · SEUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA sedentary lifestyle predisposes to cardiometabolic diseases. Lifestyle changes such as increased physical activity improve a range of cardiometabolic risk factors. The objective of this study was to examine whether functional changes in adipose tissue were related to these improvements.

methodsSeventy-three sedentary, overweight (mean BMI 29.9 ± 3.2 kg/m2) and abdominally obese, but otherwise healthy men and women (67.6 ± 0.5 years) from a randomised controlled trial of physical activity on prescription over a 6-month period were included (control n = 43, intervention n = 30). Detailed examinations were carried out at baseline and at follow-up, including fasting blood samples, a comprehensive questionnaire and subcutaneous adipose tissue biopsies for fatty acid composition analysis (n = 73) and quantification of mRNA expression levels of 13 candidate genes (n = 51), including adiponectin, leptin and inflammatory cytokines.

resultsAt follow-up, the intervention group had a greater increase in exercise time (+137 min/week) and a greater decrease in body fat mass (-1.5 kg) compared to the control subjects (changes of 0 min/week and -0.5 kg respectively). Circulating concentrations of adiponectin were unchanged, but those of leptin decreased significantly more in the intervention group (-1.8 vs -1.1 ng/mL for intervention vs control, P < 0.05). The w6-polyunsaturated fatty acid content, in particular linoleic acid (18:2w6), of adipose tissue increased significantly more in the intervention group, but the magnitude of the change was small (+0.17 vs +0.02 percentage points for intervention vs control, P < 0.05). Surprisingly leptin mRNA levels in adipose tissue increased in the intervention group (+107% intervention vs -20% control, P < 0.05), but changes in expression of the remaining genes did not differ between the groups.

conclusionsAfter a 6-month period of increased physical activity in overweight elderly individuals, circulating leptin concentrations decreased despite increased levels of leptin mRNA in adipose tissue. Otherwise, only minor changes occurred in adipose tissue, although several improvements in metabolic parameters accompanied the modest increase in physical activity.

Indexed as

ExerciseAdiponectinAgedFatty AcidsFemaleGene ExpressionHumansLeptinLinear ModelsMaleObesity, AbdominalStatistics, NonparametricSubcutaneous FatTranscriptomeTreatment OutcomeWeight LossAdiponectinFatty AcidsLeptin

Identifiers

PMID22721353
PMCPMC3475078
OpenAlexW2127072581

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.