Evidence map›Paper›PMID 24456163›Full record

ArticleEndocrinology2014

Pigment epithelium-derived factor (PEDF) suppresses IL-1β-mediated c-Jun N-terminal kinase (JNK) activation to improve hepatocyte insulin signaling.

Arijeet K Gattu, Andreas L Birkenfeld, Yasuko Iwakiri, Steven Jay, Mark Saltzman, Jennifer Doll, Petr Protiva, Varman T Samuel, Susan E Crawford, Chuhan Chung

Open access · bronzeAbstract read
In one paragraph

Article in Endocrinology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.9field-weighted citation impact, top 10% 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

15 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Review
  6. The Effects of Graded Levels of Calorie Restriction: X. Transcriptomic Responses of Epididymal Adipose Tissue.The journals of gerontology. Series A, Biological sciences and medical sciences · 2018
    Article
  7. Article
  8. Pigment epithelium-derived factor restoration increases bone mass and improves bone plasticity in a model of osteogenesis imperfecta type VI via Wnt3a blockade.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2016
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Pigment Epithelium-Derived Factor (PEDF) Inhibits Wnt/Cellular and molecular gastroenterology and hepatology · 2015
    Article
  14. Article
  15. Revisiting the matricellular concept.Matrix biology : journal of the International Society for Matrix Biology · 2014
    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

10 authors at 4 institutions in 1 country.

Arijeet K GattuSections of Digestive Diseases (A.K.G., Y.I., P.P., C.C.); Endocrinology, Department of Medicine (A.L.B., V.T.S.), Yale University School of Medicine, New Haven, Connecticut 06520; Veterans Affairs Connecticut Healthcare System (P.P., V.T.S., C.C.), West Haven, Connecticut 06516; Department of Biomedical Engineering (S.J., M.S.), Yale University, New Haven, Connecticut 06511; Department of Pathology (S.E.C.), St Louis University School of Medicine, St Louis, Missouri 63104; and Department of Biomedical Sciences (J.D.), University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53201.
Andreas L Birkenfeld
Yasuko Iwakiri
Steven Jay
Mark Saltzman
Jennifer Doll
Petr Protiva
Varman T Samuel
Susan E Crawford
Chuhan Chung
Yale University · USSaint Louis University · USUniversity of Wisconsin–Milwaukee · USVA Connecticut Healthcare System · US

Funding

Yale Liver CenterP30DK034989 · NIDDK · YALE UNIVERSITY · PI YASUKO IWAKIRI · 1986 to 2026
$31.1M
YALE CORE CENTER FOR MUSCULOSKELETAL DISORDERSP30AR046032 · NIAMS · YALE UNIVERSITY · PI INSOGNA, KARL LEONARD · 1999 to 2013
$9.0M
Arterial Remodeling in Chronic Liver DiseasesR01DK082600 · NIDDK · YALE UNIVERSITY · PI IWAKIRI, YASUKO · 2009 to 2014
$2.0M
Engineering NRG Signaling For Therapeutic Vascularization In Diabetic WoundsR00HL112905 · NHLBI · UNIV OF MARYLAND, COLLEGE PARK · PI JAY, STEVEN MICHAEL · 2013 to 2015
$730k
Engineering NRG Signaling For Therapeutic Vascularization In Diabetic WoundsK99HL112905 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI JAY, STEVEN MICHAEL · 2012 to 2013
$182k
NHLBI NIH HHS K99 HL112905NHLBI NIH HHS R00 HL112905NIAMS NIH HHS P30 AR046032NIAMS NIH HHS P30-AR46032NIDDK NIH HHS 5P30DK034989NIDDK NIH HHS P30 DK034989NIDDK NIH HHS R01 DK082600
6 · The paper itself

Abstract

Pigment epithelium-derived factor (PEDF) is an antiinflammatory protein that circulates at high levels in the metabolic syndrome. Metabolic studies of PEDF knockout (KO) mice were conducted to investigate the relationship between PEDF, inflammatory markers, and metabolic homeostasis. Male PEDF KO mice demonstrated a phenotype consisting of increased adiposity, glucose intolerance, and elevated serum levels of metabolites associated with the metabolic syndrome. Genome expression analysis revealed an increase in IL-1β signaling in the livers of PEDF KO mice that was accompanied by impaired IRS and Akt signaling. In human hepatocytes, PEDF blocked the effects of an IL-1β challenge by suppressing activation of the inflammatory mediator c-Jun N-terminal kinase while restoring Akt signaling. RNA interference of PEDF in human hepatocytes was permissive for c-Jun N-terminal kinase activation and decreased Akt signaling. A metabolomics profile identified elevated circulating levels of tricarboxyclic acid cycle intermediates including succinate, an inducer of IL-1β, in PEDF KO mice. Succinate-dependent IL-1β expression was blocked by PEDF in PEDF KO, but not wild-type hepatocytes. In vivo, PEDF restoration reduced hyperglycemia and improved hepatic insulin signaling in PEDF KO mice. These findings identify elevated PEDF as a homeostatic mechanism in the human metabolic syndrome.

Indexed as

Signal TransductionAdipocytesAnimalsEye ProteinsGene Expression RegulationGlucose Tolerance TestHepatocytesHumansInflammationInsulinInsulin ResistanceInterleukin-1betaJNK Mitogen-Activated Protein KinasesLiverMaleMetabolic SyndromeEye ProteinsInsulinInterleukin-1betaJNK Mitogen-Activated Protein KinasesNerve Growth FactorsPalmitic AcidPigment Epithelium-Derived FactorSerpinsSuccinic Acid

Identifiers

PMID24456163
PMCPMC5393334
OpenAlexW2044362576

What OpenQuestion holds

Textmetadata
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.