Evidence map›Paper›PMID 21339298›Full record

ArticleThe Journal of biological chemistry2011

Conjugated linoleic acids mediate insulin release through islet G protein-coupled receptor FFA1/GPR40.

Johannes Schmidt, Kathrin Liebscher, Nicole Merten, Manuel Grundmann, Manfred Mielenz, Helga Sauerwein, Elisabeth Christiansen, Maria E Due-Hansen, Trond Ulven, Susanne Ullrich and 3 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
6.3field-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

18 citing papers in PubMed, 59 citations in OpenAlex.

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  12. Approaches for probing allosteric interactions at 7 transmembrane spanning receptors.Progress in molecular biology and translational science · 2013
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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

13 authors at 3 institutions in 2 countries.

Johannes SchmidtInstitute of Pharmaceutical Biology, University of Bonn, Nussallee 6, D-53115 Bonn, Germany.
Kathrin Liebscher
Nicole Merten
Manuel Grundmann
Manfred Mielenz
Helga Sauerwein
Elisabeth Christiansen
Maria E Due-Hansen
Trond Ulven
Susanne Ullrich
Jesús Gomeza
Christel Drewke
Evi Kostenis
University of Bonn · DEUniversity of Southern Denmark · DKUniversity of Tübingen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Among dietary components, conjugated linoleic acids (CLAs) have attracted considerable attention as weight loss supplements in the Western world because they reduce fat stores and increase muscle mass. However, a number of adverse effects are also ascribed to the intake of CLAs such as aggravation of insulin resistance and the risk of developing diabetes. However, the mechanisms accounting for the effects of CLAs on glucose homeostasis are incompletely understood. Herein we provide evidence that CLAs specifically activate the cell surface receptor FFA1, an emerging therapeutic target to treat type 2 diabetes. Using different recombinant cellular systems engineered to stably express FFA1 and a set of diverse functional assays including the novel, label-free non-invasive dynamic mass redistribution technology (Corning® Epic® biosensor), both CLA isomers cis-9, trans-11-CLA and trans-10, cis-12-CLA were found to activate FFA1 in vitro at concentrations sufficient to also account for FFA1 activation in vivo. Each CLA isomer markedly increased glucose-stimulated insulin secretion in insulin-producing INS-1E cells that endogenously express FFA1 and in primary pancreatic β-cells of wild type but not FFA1-/- knock-out mice. Our findings establish a clear mechanistic link between CLAs and insulin production and identify the cell surface receptor FFA1 as a molecular target for CLAs, explaining their acute stimulatory effects on insulin secretion in vivo. CLAs are also revealed as insulinotropic components in widely used nutraceuticals, a finding with significant implication for development of FFA1 modulators to treat type 2 diabetes.

Indexed as

AnimalsCalciumCell LineCell Line, TumorHumansInsulinLinoleic Acids, ConjugatedRatsReceptors, G-Protein-CoupledReverse Transcriptase Polymerase Chain ReactionCalciumFFAR1 protein, humanInsulinLinoleic Acids, ConjugatedReceptors, G-Protein-Coupled

Identifiers

PMID21339298
PMCPMC3069391
OpenAlexW1987642121

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.