Evidence map›Paper›PMID 42689421›Full record

ArticleChemistry & biodiversity2026

Five New Iridoids From the Leaves of Viburnum macrocephalum f. macrocephalum and Their Free Radical Scavenging Activity.

Ya-Jiao Chen, Hong-Juan Zhou, Jia Chen, Jian-Hua Shao, Chun-Chao Zhao

Abstract read
In one paragraph

Article in Chemistry & biodiversity, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

5 authors.

Ya-Jiao Chen *College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, China.
Hong-Juan Zhou *College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, China.
Jia ChenCollege of Bioscience and Biotechnology, Yangzhou University, Yangzhou, China.
Jian-Hua ShaoCollege of Bioscience and Biotechnology, Yangzhou University, Yangzhou, China.
Chun-Chao ZhaoCollege of Bioscience and Biotechnology, Yangzhou University, Yangzhou, China.ORCID https://orcid.org/0000-0001-7941-8175

Funding

National Natural Science Foundation of China 31201563State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Education CMEMR2023-B06
6 · The paper itself

Abstract

An investigation of the chemical constituents of Viburnum macrocephalum f. macrocephalum leaves (VMML) resulted in the purification of five previously unreported iridoids, viburetins D-H (1-5), along with one known analogue (6). Compounds 1-5 were identified by combined spectroscopic and spectrometric techniques, including 1D/2D NMR, HRESIMS, and ECD. Antioxidant assays revealed that compounds 2, 5, and 6 exhibited DPPH (IC

Indexed as

Free Radical ScavengersIridoidsPlant LeavesViburnumBenzothiazolesBiphenyl CompoundsMolecular StructurePicratesSulfonic Acids1,1-diphenyl-2-picrylhydrazyl2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acidBenzothiazolesBiphenyl CompoundsFree Radical ScavengersIridoidsPicratesSulfonic AcidsABTSDPPHiridoidViburnum macrocephalum f. macrocephalum

Identifiers

PMID42689421
PMCPMC13539465

What OpenQuestion holds

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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.