Evidence map›Paper›PMID 18060661›Full record

Trial reportDiabetologia2008

Effect of beta-adrenergic stimulation on whole-body and abdominal subcutaneous adipose tissue lipolysis in lean and obese men.

J W E Jocken, G H Goossens, A M J van Hees, K N Frayn, M van Baak, J Stegen, M T W Pakbiers, W H M Saris, E E Blaak

Registry-linked trialOpen access · hybridAbstract readClinical Trial
In one paragraph

Trial report in Diabetologia, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01680133 (Regulation of Lipolysis by Insulin in Skeletal Muscle and Adipose Tissue in Type 2 Diabetes), which is not on this map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 13% 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.

NCT01680133 completednot on this map

Regulation of Lipolysis by Insulin in Skeletal Muscle and Adipose Tissue in Type 2 Diabetes

TypeobservationalSponsorMaastricht University Medical CenterRan2007 to 2011Enrolled20ConditionsType 2 DiabetesArmsHyperinsulinemic euglycemic clamp
3 · Its place in the literature

Who cites it

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 94 citations in OpenAlex.

  1. Metabolic characteristics of human subcutaneous abdominal adipose tissue after overnight fast.American journal of physiology. Endocrinology and metabolism · 2012
    Pooled it
  2. Trial
  3. Trial
  4. Review
  5. Review
  6. Article
  7. Review
  8. Obesity protects against sepsis-induced and norepinephrine-induced white adipose tissue browning.American journal of physiology. Endocrinology and metabolism · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. Adipose Tissue Fibrosis: Mechanisms, Models, and Importance.International journal of molecular sciences · 2020
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

9 authors at 3 institutions in 2 countries.

J W E JockenDepartment of Human Biology, Nutrition and Toxicology Research Institute Maastricht (NUTRIM), Maastricht University, and Department of Nuclear Medicine, University Hospital Maastricht, Maastricht, The Netherlands. J.Jocken@HB.Unimaas.nl
G H Goossens
A M J van Hees
K N Frayn
M van Baak
J Stegen
M T W Pakbiers
W H M Saris
E E Blaak
Maastricht University · NLMaastricht University Medical Centre · NLUniversity of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aims/hypothesisObesity is characterised by increased triacylglycerol storage in adipose tissue. There is in vitro evidence for a blunted beta-adrenergically mediated lipolytic response in abdominal subcutaneous adipose tissue (SAT) of obese individuals and evidence for this at the whole-body level in vivo. We hypothesised that the beta-adrenergically mediated effect on lipolysis in abdominal SAT is also impaired in vivo in obese humans.

methodsWe investigated whole-body and abdominal SAT glycerol metabolism in vivo during 3 h and 6 h [2H5]glycerol infusions. Arterio-venous concentration differences were measured in 13 lean and ten obese men after an overnight fast and during intravenous infusion of the non-selective beta-adrenergic agonist isoprenaline [20 ng (kg fat free mass)(-1) min(-1)].

resultsLean and obese participants showed comparable fasting glycerol uptake by SAT (9.7+/-3.4 vs 9.3+/-2.5% of total release, p=0.92). Furthermore, obese participants showed an increased whole-body beta-adrenergically mediated lipolytic response versus lean participants. However, their fasting lipolysis was blunted [glycerol rate of appearance: 7.3+/-0.6 vs 13.1+/-0.9 micromol (kg fat mass)(-1) min(-1), p<0.01], as was the beta-adrenergically mediated lipolytic response per unit SAT [Delta total glycerol release: 140+/-71 vs 394+/-112 nmol (100 g tissue)(-1) min(-1), p<0.05] compared with lean participants. Net triacylglycerol flux tended to increase in obese compared with lean participants during beta-adrenergic stimulation [Delta net triacylglycerol flux: 75+/-32 vs 16+/-11 nmol (100 g tissue)(-1) min(-1), p=0.06]. CONCLUSIONS/

interpretationWe demonstrated in vivo that beta-adrenergically mediated lipolytic response is impaired systematically and in abdominal SAT of obese versus lean men. This may be important in the development or maintenance of increased triacylglycerol stores and obesity.

Indexed as

Adipose TissueAdrenergic beta-AgonistsAdultBody CompositionBody Mass IndexFastingFatty Acids, NonesterifiedFemaleGlycerolHumansIsoproterenolLipolysisMaleMiddle AgedObesityPilot ProjectsAdrenergic beta-AgonistsFatty Acids, NonesterifiedGlycerolIsoproterenolTriglycerides

Identifiers

PMID18060661
PMCPMC2170457
OpenAlexW2033058427

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.