Evidence map›Paper›PMID 21532595›Full record

ArticleNature medicine2011

A role for central nervous system PPAR-γ in the regulation of energy balance.

Karen K Ryan, Bailing Li, Bernadette E Grayson, Emily K Matter, Stephen C Woods, Randy J Seeley

Open access · greenAbstract read
In one paragraph

Article in Nature medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 118 papers.

0numbers the graph read from it
0cells of the map it votes in
118citing papers in PubMed
11.4field-weighted citation impact, top 1% 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

118 citing papers in PubMed, 212 citations in OpenAlex.

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Karen K RyanDepartment of Internal Medicine, Division of Endocrinology, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA.
Bailing Li
Bernadette E Grayson
Emily K Matter
Stephen C Woods
Randy J Seeley
University of Cincinnati Medical Center · US

Funding

High Fat Diet-Induced ObesityP01DK056863 · NIDDK · UNIVERSITY OF CINCINNATI · PI TSO, PATRICK · 2001 to 2010
$12.0M
INSULIN AND CNS CONTROL OF BODY WEIGHT AND FOOD INTAKER01DK017844 · NIDDK · UNIVERSITY OF WASHINGTON · PI WOODS, STEPHEN C · 1986 to 2013
$3.8M
CNS MEDIATION OF VISCERAL ILLNESSR01DK054890 · NIDDK · UNIVERSITY OF CINCINNATI · PI SEELEY, RANDY J · 1998 to 2009
$2.6M
Roles of GM-CSF in Energy and Glucose RegulationR01DK073505 · NIDDK · UNIVERSITY OF CINCINNATI · PI SEELEY, RANDY J · 2006 to 2010
$1.5M
INSULIN AND CNS CONTROL OF BODY WEIGHT AND FOOD INTAKER37DK017844 · NIDDK · UNIVERSITY OF WASHINGTON · PI WOODS, STEPHEN C · 1993 to 2000
$382k
The role of hypothalamic PPARg in diet-induced obesityF32DK082173 · NIDDK · UNIVERSITY OF CINCINNATI · PI RYAN, KAREN · 2009 to 2011
$157k
NIDDK NIH HHS DK056863NIDDK NIH HHS DK073505NIDDK NIH HHS DK082173NIDDK NIH HHS DK17844NIDDK NIH HHS F32 DK082173NIDDK NIH HHS P01 DK056863NIDDK NIH HHS R01 DK017844NIDDK NIH HHS R01 DK054890NIDDK NIH HHS R01 DK073505NIDDK NIH HHS R37 DK017844
6 · The paper itself

Abstract

The peroxisome proliferator-activated receptor-γ (PPAR-γ) is a nuclear receptor that is activated by lipids to induce the expression of genes involved in lipid and glucose metabolism, thereby converting nutritional signals into metabolic consequences. PPAR-γ is the target of the thiazolidinedione (TZD) class of insulin-sensitizing drugs, which have been widely prescribed to treat type 2 diabetes mellitus. A common side effect of treatment with TZDs is weight gain. Here we report a previously unknown role for central nervous system (CNS) PPAR-γ in the regulation of energy balance. We found that both acute and chronic activation of CNS PPAR-γ, by either TZDs or hypothalamic overexpression of a fusion protein consisting of PPAR-γ and the viral transcriptional activator VP16 (VP16-PPAR-γ), led to positive energy balance in rats. Blocking the endogenous activation of CNS PPAR-γ with pharmacological antagonists or reducing its expression with shRNA led to negative energy balance, restored leptin sensitivity in high-fat-diet (HFD)-fed rats and blocked the hyperphagic response to oral TZD treatment. These findings have implications for the widespread clinical use of TZD drugs and for understanding the etiology of diet-induced obesity.

Indexed as

AnimalsBlood-Brain BarrierCentral Nervous SystemEnergy MetabolismGene ExpressionHumansHypoglycemic AgentsHypothalamusMalePPAR gammaRatsRats, Long-EvansRecombinant Fusion ProteinsRNA, Small InterferingRosiglitazoneThiazolidinedionesHypoglycemic AgentsPPAR gammaRecombinant Fusion ProteinsRNA, Small InterferingRosiglitazoneThiazolidinediones

Identifiers

PMID21532595
PMCPMC3089657
OpenAlexW1989360250

What OpenQuestion holds

Textmetadata
LicenceTDM
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.