Evidence map›Paper›PMID 29084156›Full record

ArticleNutrients2017

The Dietary Furocoumarin Imperatorin Increases Plasma GLP-1 Levels in Type 1-Like Diabetic Rats.

Lin-Yu Wang, Kai-Chun Cheng, Yingxiao Li, Chiang-Shan Niu, Juei-Tang Cheng, Ho-Shan Niu

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 32% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. The Role and Mechanism of Incretins in Gynaecologic Diseases.Endocrinology, diabetes & metabolism · 2026
    Review
  4. Effect of Imperatorin on Apoptosis of Myocardial Tissue in Diabetic Rats.Bulletin of experimental biology and medicine · 2026
    Article
  5. Article
  6. Article
  7. Article
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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

6 authors at 4 institutions in 2 countries.

Lin-Yu WangDepartment of Childhood Education and Nursery, Chia Nan University of Pharmacy and Science, Rende, Tainan City 71710, Taiwan. linyu870203@gmail.com.
Kai-Chun ChengDepartment of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8520, Japan. kc-cheng@m3.kufm.kagoshima-u.ac.jp.
Yingxiao LiDepartment of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8520, Japan. bebeli009@hotmail.com.
Chiang-Shan NiuDepartment of Nursing, Tzu Chi University of Science and Technology, Hualien City 97005, Taiwan. ncs@ems.tcust.edu.tw.
Juei-Tang ChengDepartment of Medical Research, Chi-Mei Medical Center, Yong Kang, Tainan City 71003, Taiwan. jtcheng@mail.cjcu.edu.tw.
Ho-Shan NiuDepartment of Nursing, Tzu Chi University of Science and Technology, Hualien City 97005, Taiwan. nhs580113@yahoo.com.tw.
Chi Mei Medical Center · TWTzu Chi University · TWChia Nan University of Pharmacy and Science · TWKagoshima University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Imperatorin, a dietary furocoumarin, is found not only in medicinal plants, but also in popular culinary herbs, such as parsley and fennel. Recently, imperatorin has been shown to activate GPR119 in cells. Another GPR, GPR131, also called TGR5 or G-protein-coupled bile acid receptor 1 (GPBAR1), is known to regulate glucose metabolism. Additionally, TGR5 activation increases glucagon-like peptide (GLP-1) secretion to lower blood sugar levels in animals. Therefore, the present study aims to determine whether the effects of imperatorin on GLP-1 secretion are mediated by TGR5. First, we transfected cultured Chinese hamster ovary cells (CHO-K1 cells) with the TGR5 gene. Glucose uptake was confirmed in the transfected cells using a fluorescent indicator. Moreover, NCI-H716 cells, which secrete GLP-1, were used to investigate the changes in calcium concentrations and GLP-1 levels. In addition, streptozotocin (STZ)-induced type 1-like diabetic rats were used to identify the effects of imperatorin in vivo. Imperatorin dose-dependently increased glucose uptake in CHO-K1 cells expressing TGR5. In STZ diabetic rats, similar to the results in NCI-H716 cells, imperatorin induced a marked increase of GLP-1 secretion that was reduced, but not totally abolished, by a dose of triamterene that inhibited TGR5. Moreover, increases in GLP-1 secretion induced by imperatorin and GPR119 activation were shown in NCI-H716 cells. We demonstrated that imperatorin induced GLP-1 secretion via activating TGR5 and GPR119. Therefore, imperatorin shall be considered as a TGR5 and GPR119 agonist.

Indexed as

AnimalsBlood GlucoseCell LineCHO CellsCricetulusDiabetes Mellitus, ExperimentalDose-Response Relationship, DrugFurocoumarinsGene SilencingGlucagon-Like Peptide 1HumansInsulinMaleRatsRats, Sprague-DawleyReceptors, G-Protein-CoupledBlood GlucoseFurocoumarinsGlucagon-Like Peptide 1Gpbar1 protein, ratGPR119 protein, ratimperatorinInsulinReceptors, G-Protein-CoupledGPR119imperatorinsitagliptinTGR5transfectiontriamterene

Identifiers

PMID29084156
PMCPMC5707664
OpenAlexW2765494433

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.