Evidence map›Paper›PMID 29339762›Full record

ArticleScientific reports2018

Supra-pharmacological concentration of capsaicin stimulates brown adipogenesis through induction of endoplasmic reticulum stress.

Ryosuke Kida, Taiki Noguchi, Masaru Murakami, Osamu Hashimoto, Teruo Kawada, Tohru Matsui, Masayuki Funaba

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

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  19. Calcium Signaling Pathways: Key Pathways in the Regulation of Obesity.International journal of molecular sciences · 2019
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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

7 authors at 3 institutions in 1 country.

Ryosuke KidaDivision of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan.
Taiki NoguchiDivision of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan.
Masaru MurakamiLaboratory of Molecular Biology, Azabu University School of Veterinary Medicine, Sagamihara, 252-5201, Japan.
Osamu HashimotoLaboratory of Experimental Animal Science, Kitasato University School of Veterinary Medicine, Towada, 034-8628, Japan.
Teruo KawadaDivision of Food Science and Biotechnology, Kyoto University Graduate School of Agriculture, Uji, 611-0011, Japan.
Tohru MatsuiDivision of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan.
Masayuki FunabaDivision of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan. mfunaba@kais.kyoto-u.ac.jp.ORCID http://orcid.org/0000-0002-4303-6682
Kyoto University · JPAzabu University · JPKitasato University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We previously showed that brown (pre)adipocytes express Trpv1, a capsaicin receptor, and that capsaicin stimulates differentiation of brown preadipocytes in the late stages of brown adipogenesis. The present study revealed that treatment with 100 μM capsaicin stimulates brown adipogenesis by inducing endoplasmic reticulum (ER) stress. Treatment with capsaicin (100 μM) during brown adipogenesis enhanced lipid accumulation and the expression of Ucp1, a gene selectively expressed in brown adipocytes. Capsaicin treatment also caused an increase in the cytosolic calcium concentration even when extracellular calcium was removed. I-RTX, a Trpv1 inhibitor, did not modulate the increase in cytosolic calcium concentration, lipid accumulation or Ucp1 expression. Previous studies revealed that the release of calcium from the ER induces ER stress, leading to the conversion of X-box binding protein 1 (Xbp1) pre-mRNA to spliced Xbp1 (sXbp1) as well as the up-regulation of Chop expression. Capsaicin treatment increased the expression of sXbp1 and Chop in brown preadipocytes and did not enhance lipid accumulation or Ucp1 expression in Xbp1 knockdown cells. The present results describe a novel mechanism of brown adipogenesis regulation via ER stress that is induced by a supra-pharmacological concentration of capsaicin.

Indexed as

Adipocytes, BrownAdipogenesisAnimalsCalciumCalcium-Binding ProteinsCapsaicinCells, CulturedCyclic AMP Response Element-Binding ProteinEndoplasmic Reticulum StressIntercellular Signaling Peptides and ProteinsMiceMice, Inbred C57BLPhosphorylationRNA InterferenceRNA, Small InterferingTRPV Cation ChannelsCalciumCalcium-Binding ProteinsCapsaicinCreb1 protein, mouseCyclic AMP Response Element-Binding ProteinDlk1 protein, mouseIntercellular Signaling Peptides and ProteinsRNA, Small InterferingTRPV1 protein, mouseTRPV Cation ChannelsUcp1 protein, mouseUncoupling Protein 1X-Box Binding Protein 1Xbp1 protein, mouse

Identifiers

PMID29339762
PMCPMC5770457
OpenAlexW2783209372

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LicenceCC BY
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Registered trials

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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.