Evidence map›Paper›PMID 19224872›Full record

ArticleJournal of lipid research2009

The L-4F mimetic peptide prevents insulin resistance through increased levels of HO-1, pAMPK, and pAKT in obese mice.

Stephen J Peterson, Dong Hyun Kim, Ming Li, Vincenzo Positano, Luca Vanella, Luigi F Rodella, Francesco Piccolomini, Nitin Puri, Amalia Gastaldelli, Claudia Kusmic and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of lipid research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
6.7field-weighted citation impact, top 3% 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

69 citing papers in PubMed, 104 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Review
  5. Peptides as Therapeutic Agents for Atherosclerosis.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  6. Review
  7. Review
  8. RETRACTED: Cold-PressedAntioxidants (Basel, Switzerland) · 2020
    Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Novel ABCA1 peptide agonists with antidiabetic action.Molecular and cellular endocrinology · 2019
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Heme as a Target for Therapeutic Interventions.Frontiers in pharmacology · 2017
    Review
  20. Article

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

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

12 authors at 4 institutions in 3 countries.

Stephen J PetersonDepartment of Pharmacology, New York Medical College, Valhalla, NY 10595, USA.
Dong Hyun Kim
Ming Li
Vincenzo Positano
Luca Vanella
Luigi F Rodella
Francesco Piccolomini
Nitin Puri
Amalia Gastaldelli
Claudia Kusmic
Antonio L'Abbate
Nader G Abraham
New York Medical College · USIstituto di Fisiologia Clinica · ITPeterson (Norway) · NORockefeller University · US

Funding

Vasoregulatory Function of CYP2E1-Derived EicosanoidsP01HL034300 · NHLBI · NEW YORK MEDICAL COLLEGE · PI JIANG, HOULI · 1985 to 2015
$33.4M
HEME OXYGENASE REGULATION OF EICOSANOID BIOSYNTHESISR01DK056601 · NIDDK · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI ABRAHAM, NADER G. · 2001 to 2013
$4.4M
Oxidative Stress and Vascular HO in DiabetesR01DK068134 · NIDDK · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI ABRAHAM, NADER G. · 2006 to 2010
$1.7M
NHLBI NIH HHS HL-34300NHLBI NIH HHS HL-55601NHLBI NIH HHS P01 HL034300NIDDK NIH HHS DK-068134NIDDK NIH HHS R01 DK056601NIDDK NIH HHS R01 DK068134
6 · The paper itself

Abstract

We examined mechanisms by which L-4F reduces obesity and diabetes in obese (ob) diabetic mice. We hypothesized that L-4F reduces adiposity via increased pAMPK, pAKT, HO-1, and increased insulin receptor phosphorylation in ob mice. Obese and lean mice were divided into five groups: lean, lean-L-4F-treated, ob, ob-L-4F-treated, and ob-L-4F-LY294002. Food intake, insulin, glucose adipocyte stem cells, pAMPK, pAKT, CB1, and insulin receptor phosphorylation were determined. Subcutaneous (SAT) and visceral adipose tissue (VAT) were determined by MRI and hepatic lipid content by magnetic resonance spectroscopy. SAT and VAT volumes decreased in ob-L-4F-treated animals compared with control. L-4F treatment decreased hepatic lipid content and increased the numbers of small adipocytes (P < 0.05) and phosphorylation of insulin receptors. L-4F decreased CB1 in SAT and VAT and increased pAKT and pAMPK in endothelium. L-4F-mediated improvement in endothelium was prevented by LY294002. Inhibition of pAKT and pAMPK by LY294002 was associated with an increase in glucose levels. Upregulation of HO-1 by L-4F produced adipose remodeling and increased the number of small differentiated adipocytes. The anti-obesity effects of L-4F are manifested by a decrease in visceral fat content with reciprocal increases in adiponectin, pAMPK, pAKT, and phosphorylation of insulin receptors with improved insulin sensitivity.

Indexed as

ObesityAdipocytesAdipose TissueAMP-Activated Protein KinasesAnimalsBody WeightChromonesDiabetes Mellitus, Type 2Enzyme InhibitorsHeme Oxygenase-1HumansInsulin ResistanceMaleMiceMice, ObeseMolecular Mimicry2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-oneAMP-Activated Protein KinasesChromonesEnzyme InhibitorsHeme Oxygenase-1L-4F peptideMorpholinesPeptidesProto-Oncogene Proteins c-aktReceptor, Insulin

Identifiers

PMID19224872
PMCPMC2694329
OpenAlexW2107914241

What OpenQuestion holds

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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.