Evidence map›Paper›PMID 34674602›Full record

ArticleGut microbes

Activation of ectopic olfactory receptor 544 induces GLP-1 secretion and regulates gut inflammation.

Chunyan Wu, Mi-Young Jeong, Jung Yeon Kim, Giljae Lee, Ji-Sun Kim, Yu Eun Cheong, Hyena Kang, Chung Hwan Cho, Jimin Kim, Min Kyung Park and 6 more

Open access · goldAbstract read
In one paragraph

Article in Gut microbes. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

24 citing papers in PubMed, 48 citations in OpenAlex.

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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

16 authors at 3 institutions in 2 countries.

Chunyan WuDepartment of Biotechnology, School of Life Science and Biotechnology for BK21 Plus, Korea University, Seoul, Republic of Korea.
Mi-Young JeongDepartment of Biotechnology, School of Life Science and Biotechnology for BK21 Plus, Korea University, Seoul, Republic of Korea.
Jung Yeon KimDepartment of Biotechnology, School of Life Science and Biotechnology for BK21 Plus, Korea University, Seoul, Republic of Korea.
Giljae LeeDepartment of Environmental Health Sciences, Seoul National University, Seoul, Republic of Korea.
Ji-Sun KimDepartment of Biotechnology, School of Life Science and Biotechnology for BK21 Plus, Korea University, Seoul, Republic of Korea.
Yu Eun CheongDepartment of Biotechnology, School of Life Science and Biotechnology for BK21 Plus, Korea University, Seoul, Republic of Korea.
Hyena KangDepartment of Environmental Health Sciences, Seoul National University, Seoul, Republic of Korea.
Chung Hwan ChoDepartment of Environmental Health Sciences, Seoul National University, Seoul, Republic of Korea.
Jimin KimDepartment of Biotechnology, School of Life Science and Biotechnology for BK21 Plus, Korea University, Seoul, Republic of Korea.
Min Kyung ParkDepartment of Food Science and Engineering, Ewha Womans University, Seoul, Republic of Korea.
You Kyoung ShinDepartment of Basic Nursing Science, School of Nursing, Korea University, Seoul, Republic of Korea.
Kyoung Heon KimDepartment of Biotechnology, School of Life Science and Biotechnology for BK21 Plus, Korea University, Seoul, Republic of Korea.
Geun Hee SeolDepartment of Basic Nursing Science, School of Nursing, Korea University, Seoul, Republic of Korea.
Seung Hoi KooDivision of Biological Sciences, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea.
GwangPyo KoDepartment of Environmental Health Sciences, Seoul National University, Seoul, Republic of Korea.
Sung-Joon LeeDepartment of Biotechnology, School of Life Science and Biotechnology for BK21 Plus, Korea University, Seoul, Republic of Korea.ORCID 0000-0001-8683-3377
Korea University · KRSeoul National University · KREwha Womans University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Olfactory receptors are ectopically expressed in extra-nasal tissues. The gut is constantly exposed to high levels of odorants where ectopic olfactory receptors may play critical roles. Activation of ectopic olfactory receptor 544 (Olfr544) by azelaic acid (AzA), an Olfr544 ligand, reduces adiposity in mice fed a high-fat diet (HFD) by regulating fuel preference to fats. Herein, we investigated the novel function of Olfr544 in the gut. In GLUTag cells, AzA induces the cAMP-PKA-CREB signaling axis and increases the secretion of GLP-1, an enteroendocrine hormone with anti-obesity effects. In mice fed a HFD and orally administered AzA, GLP-1 plasma levels were elevated in mice. The induction of GLP-1 secretion was negated in cells with Olfr544 gene knockdown and in Olfr544-deficient mice. Gut microbiome analysis revealed that AzA increased the levels of

Indexed as

AnimalsBacteriaColonDicarboxylic AcidsDiet, High-FatGastrointestinal MicrobiomeGlucagon-Like Peptide 1HumansMaleMiceMice, KnockoutObesityReceptors, Odorantazelaic acidDicarboxylic AcidsGlucagon-Like Peptide 1Or55b4 protein, mouseReceptors, Odorantcolonic inflammationectopic olfactory receptorGLP-1gut microbiomemetabolomeOlfr544

Identifiers

PMID34674602
PMCPMC8632334
OpenAlexW3205621865

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.