Evidence map›Paper›PMID 35670497›Full record

ArticleJournal of internal medicine2022

Lipolysis defect in people with obesity who undergo metabolic surgery.

Mikael Rydén, Daniel P Andersson, Maria I Kotopouli, Erik Stenberg, Erik Näslund, Anders Thorell, Thorkild I A Sørensen, Peter Arner

Open access · hybridAbstract read
In one paragraph

Article in Journal of internal medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

6 citing papers in PubMed, 9 citations in OpenAlex.

  1. Review
  2. AnResearch square · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. The regulation of adipocyte growth in white adipose tissue.Frontiers in cell and developmental biology · 2022
    Review
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

8 authors at 5 institutions in 2 countries.

Mikael RydénDepartment of Medicine (H7), Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden.
Daniel P AnderssonDepartment of Medicine (H7), Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden.
Maria I KotopouliDivision of Biostatistics, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Erik StenbergDepartment of Surgery, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Erik NäslundDivision of Surgery, Department of Clinical Sciences, Danderyd Hospital, Karolinska Institutet, Stockholm, Sweden.
Anders ThorellDepartment of Clinical Sciences, Danderyds Hospital, Karolinska Institutet, Stockholm, Sweden.
Thorkild I A SørensenNovo Nordisk Foundation Centre for Basic Metabolic Research and Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Peter ArnerDepartment of Medicine (H7), Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden.
Karolinska Institutet · SEErsta sjukhus · SEKarolinska University Hospital · SEÖrebro University · SEUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveCross-sectional studies demonstrate that catecholamine stimulation of fat cell lipolysis is blunted in obesity. We investigated whether this defect persists after substantial weight loss has been induced by metabolic surgery, and whether it is related to the outcome. DESIGN/

methodsPatients with obesity not able to successfully reduce body weight by conventional means (n = 126) were investigated before and 5 years after Roux-en-Y gastric bypass surgery (RYGB). They were compared with propensity-score matched subjects selected from a control group (n = 1017), and with the entire group after adjustment for age, sex, body mass index (BMI), fat cell volume and other clinical parameters. Catecholamine-stimulated lipolysis (glycerol release) was investigated in isolated fat cells using noradrenaline (natural hormone) or isoprenaline (synthetic beta-adrenoceptor agonist).

resultsFollowing RYGB, BMI was reduced from 39.9 (37.5-43.5) (median and interquartile range) to 29.5 (26.7-31.9) kg/m

conclusionPatients with obesity requiring metabolic surgery have impaired ability of catecholamines to stimulate lipolysis, which remains despite long-term normalization of body weight by RYGB. Furthermore, preoperative variations in the ability of catecholamines to activate lipolysis may predict the long-term reduction in body weight and fat mass.

Indexed as

Bariatric SurgeryGastric BypassObesity, MorbidBody Mass IndexBody WeightCatecholaminesCross-Sectional StudiesGlycerolHormonesHumansIsoproterenolLipolysisNorepinephrineObesityReceptors, AdrenergicTreatment OutcomeCatecholaminesGlycerolHormonesIsoproterenolNorepinephrineReceptors, AdrenergicadipocytescatecholaminesglycerolRoux-en-Y gastric bypass

Identifiers

PMID35670497
PMCPMC9540545
OpenAlexW4282010829

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.