Evidence map›Paper›PMID 20682684›Full record

ArticleDiabetes2010

Acute stimulation of white adipocyte respiration by PKA-induced lipolysis.

Einav Yehuda-Shnaidman, Ben Buehrer, Jingbo Pi, Naresh Kumar, Sheila Collins

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Diabetes, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

70 citing papers in PubMed, 113 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Thermogenic Adipocytes Promote M2 Macrophage Polarization through CNNM4-Mediated Mg Secretion.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

10 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

5 authors at 4 institutions in 1 country.

Einav Yehuda-ShnaidmanHamner Institutes for Health Sciences, Research Triangle Park, North Carolina, USA.
Ben Buehrer
Jingbo Pi
Naresh Kumar
Sheila Collins
The Hamner Institutes for Health Sciences · USSanford Burnham Prebys Medical Discovery Institute · USScripps Research Institute · USTriangle · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveWe examined the effect of β-adrenergic receptor (βAR) activation and cAMP-elevating agents on respiration and mitochondrial uncoupling in human adipocytes and probed the underlying molecular mechanisms. RESEARCH DESIGN AND

methodsOxygen consumption rate (OCR, aerobic respiration) and extracellular acidification rate (ECAR, anaerobic respiration) were examined in response to isoproterenol (ISO), forskolin (FSK), and dibutyryl-cAMP (DB), coupled with measurements of mitochondrial depolarization, lipolysis, kinase activities, and gene targeting or knock-down approaches.

resultsISO, FSK, or DB rapidly increased oxidative and glycolytic respiration together with mitochondrial depolarization in human and mouse white adipocytes. The increase in OCR was oligomycin-insensitive and contingent on cAMP-dependent protein kinase A (PKA)-induced lipolysis. This increased respiration and the uncoupling were blocked by inhibiting the mitochondrial permeability transition pore (PTP) and its regulator, BAX. Interestingly, compared with lean individuals, adipocytes from obese subjects exhibited reduced OCR and uncoupling capacity in response to ISO.

conclusionsLipolysis stimulated by βAR activation or other maneuvers that increase cAMP levels in white adipocytes acutely induces mitochondrial uncoupling and cellular energetics, which are amplified in the absence of scavenging BSA. The increase in OCR is dependent on PKA-induced lipolysis and is mediated by the PTP and BAX. Because this effect is reduced with obesity, further exploration of this uncoupling mechanism will be needed to determine its cause and consequences.

Indexed as

Adipocytes, WhiteAerobiosisAnaerobiosisAnimalsBucladesineColforsinCyclic AMPHumansIon ChannelsIsoproterenolIsoquinolinesMaleMiceMice, KnockoutMitochondrial ProteinsOxygen ConsumptionBucladesineColforsinCyclic AMPIon ChannelsIsoproterenolIsoquinolinesMitochondrial ProteinsN-(2-(4-bromocinnamylamino)ethyl)-5-isoquinolinesulfonamideProtein Kinase InhibitorsRNA, Small InterferingSulfonamidesUncoupling Protein 2

Identifiers

PMID20682684
PMCPMC3279548
OpenAlexW2163400298

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.