Evidence map›Paper›PMID 31666589›Full record

ArticleScientific reports2019

Natural phenolic compounds potentiate hypoglycemia via inhibition of Dipeptidyl peptidase IV.

Po-Kai Huang, Shian-Ren Lin, Chia-Hsiang Chang, May-Jwan Tsai, Der-Nan Lee, Ching-Feng Weng

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06790771 (Acute Effect of Supplement Containing L-Arginine on Appetite Suppression and GLP-1 Induction), which is not on this map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.9field-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.

NCT06790771 nacompletednot on this mapstarted 2025, after this paper: background citation

Acute Effect of Supplement Containing L-Arginine on Appetite Suppression and GLP-1 Induction

TypeinterventionalSponsorTexas Christian UniversityRan2025 to 2026Enrolled25ConditionsHungerArmsHigh Dose Supplement, Low Dose Supplement, Placebo
3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 70 citations in OpenAlex.

  1. Trial
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  5. Article
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  11. Targeted3 Biotech · 2025
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  15. Article
  16. Article
  17. Curcumin inhibits growth ofJournal of oral microbiology · 2024
    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.

Po-Kai HuangDepartment of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, 97401, Taiwan.
Shian-Ren LinDepartment of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, 97401, Taiwan.
Chia-Hsiang ChangDepartment of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, 97401, Taiwan.
May-Jwan TsaiNeural regeneration Laboratory, Neurological Institute, Taipei Veterans General Hospital, Taipei, 11217, Taiwan.
Der-Nan LeeDepartment of Biotechnology and Animal Science, National Ilan University, Ilan, 26047, Taiwan.
Ching-Feng WengDepartment of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, 97401, Taiwan. cfweng@gms.ndhu.edu.tw.ORCID http://orcid.org/0000-0002-9747-8697
National Dong Hwa University · TWNational Ilan University · TWTaipei Veterans General Hospital · TWTon Duc Thang University · VN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dipeptidyl peptidase IV (DPP IV) is a surface glycoprotein that can degrade glucagon like pepetide-1 (GLP-1) by decreasing blood sugar. Herbal medicines for diabetic therapy are widely used with acceptable efficacy but unsatisfied in advances. DPP IV was chosen as a template to employ molecular docking via Discovery Studio to search for natural phenolic compounds whether they have the inhibitory function of DPP IV. Then, docking candidates were validated and further performed signal pathway via Caco-2, C2C12, and AR42J cells. Lastly, a diet-induced diabetes in mice were applied to examine the efficacy and toxicity of hit natural phenolic products in long-term use (in vivo). After screening, curcumin, syringic acid, and resveratrol were found in high affinity with DPP IV enzymes. In enzymatic tests, curcumin and resveratrol showed potential inhibition of DPP IV. In vitro assays, curcumin inhibited of DPP IV activity in Caco-2 cells and ERK phosphorylation in C2C12 cells. Additionally, curcumin attenuated blood sugar in S961-treated C57BL/6 mice and in diet-induced diabetic ICR mice and long-term regulate HbA1c in diabetic mice. Curcumin targeted to DPP IV for reducing blood glucose, it possesses potential and alternative substitution of synthetic clinical drugs for the medication of diabetes.

Indexed as

AnimalsCaco-2 CellsCyclic AMP-Dependent Protein KinasesDipeptidyl Peptidase 4Dipeptidyl-Peptidase IV InhibitorsExtracellular Signal-Regulated MAP KinasesHumansHypoglycemic AgentsMaleMiceMolecular Docking SimulationPhenolPhosphorylationProtein ConformationCyclic AMP-Dependent Protein KinasesDipeptidyl Peptidase 4Dipeptidyl-Peptidase IV InhibitorsExtracellular Signal-Regulated MAP KinasesHypoglycemic AgentsPhenol

Identifiers

PMID31666589
PMCPMC6821704
OpenAlexW2982372586

What OpenQuestion holds

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Registered trials

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.