Evidence map›Paper›PMID 39949806›Full record

ArticleChinese herbal medicines2025

Flavones in pomelo peel resist fibril formation of human islet amyloid polypeptide.

Cuiyun Gao, Zhiruo Wan, Yan Liu, Yuting Meng, Xu Chen, Xiaohan Tang, Lingyu Hang, Hailong Yuan

Abstract read
In one paragraph

Article in Chinese herbal medicines, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
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

8 authors.

Cuiyun GaoDepartment of Pharmacy, Air Force Medical Center, Air Force Medical University, Beijing 100000, China.
Zhiruo WanDepartment of Pharmacy, Air Force Medical Center, Air Force Medical University, Beijing 100000, China.
Yan LiuDepartment of Pharmacy, Air Force Medical Center, Air Force Medical University, Beijing 100000, China.
Yuting MengDepartment of Pharmacy, Air Force Medical Center, Air Force Medical University, Beijing 100000, China.
Xu ChenDepartment of Pharmacy, Air Force Medical Center, Air Force Medical University, Beijing 100000, China.
Xiaohan TangDepartment of Pharmacy, Air Force Medical Center, Air Force Medical University, Beijing 100000, China.
Lingyu HangDepartment of Pharmacy, Air Force Medical Center, Air Force Medical University, Beijing 100000, China.
Hailong YuanDepartment of Pharmacy, Air Force Medical Center, Air Force Medical University, Beijing 100000, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: Exploring the formation and aggregation of human islet amyloid polypeptide (hIAPP) (amylin) fibers is significant for promoting the prevention and treatment of type II diabetes mellitus (T2DM). Flavones in pomelo peel have visible biological activity in the anti-diabetes aspect. The present study aimed to investigate the effects of five flavones [naringin (NRG), narirutin (NRR), nobiletin (NOB), sinensetin (SIN), and neohesperidin (NHP)] in pomelo peel on peptide aggregation and explore its possible mechanisms. The cell viability of flavones against peptide aggregation was also evaluated. Methods: The thioflavin T (ThT) assay and transmission electron microscopy (TEM) were used for evaluating the inhibition and disaggregation of flavones on peptide aggregation. The interaction mechanism was analyzed by endogenous fluorescence, molecular dynamics (MD) simulations, ultraviolet spectroscopy (UV) and isothermal titration calorimetry (ITC) experiments. The 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide (MTT) and immune assays were performed to characterize the cell viability of flavones against peptide aggregation. Results: The five flavones showed a decrease in fluorescence intensity, fiber number and size under incubation with different molar ratios of hIAPP. The compounds can bind to the aromatic tyrosine (Tyr) residueTyr 37, resulting in the intrinsic fluorescence quenching of the peptides. Five flavones can form hydrogen bonds with hIAPP, which is likely to be based on their phenolic hydroxyl structure. They showed strong binding affinity with peptides. The reaction system of NRG and NRR observed an exothermic reaction, and the others were endothermic reactions. The absorption peaks of the compounds with hIAPP changed and showed hypochromic effects, indicating that there may be π-π stacking interaction. Flavones noticeably increased the cell viability in the presence of amyloid peptides and reduced the absorption intensity induced by peptide oligomers. Conclusion: A total of five flavones in pomelo peel have inhibitory and depolymerization effects on amyloid fibrils, and can significantly protect cells from the toxic effect of hIAPP and reduce the production of toxic oligomers.

Indexed as

flavoneshuman islet amyloid polypeptideinhibitioninteractionpeptide aggregationpomelo peel

Identifiers

PMID39949806
PMCPMC11814264

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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.