Evidence map›Paper›PMID 39899217›Full record

ArticleJournal of natural medicines2025

Potent SARS-CoV-2 3C-like protease inhibitor ( +)-eupenoxide-3,6-diketone (IC

Shoji Maehara, Moeka Kumamoto, Shogo Nakajima, Yuhzo Hieda, Koichi Watashi, Toshiyuki Hata

Abstract read
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In one paragraph

Article in Journal of natural medicines, 2025. 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

6 authors.

Shoji MaeharaFaculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Sanzo, 1 Gakuen-cho, Fukuyama, Hiroshima, 729-0292, Japan. smaehara@fukuyama-u.ac.jp.ORCID http://orcid.org/0000-0001-5787-6546
Moeka KumamotoFaculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Sanzo, 1 Gakuen-cho, Fukuyama, Hiroshima, 729-0292, Japan.
Shogo NakajimaDepartment of Virology II, National Institute of Infectious Diseases, Toyama 1-23-1, Shinjuku-ku, Tokyo, 162-8640, Japan.
Yuhzo HiedaCommon Resources Center, Fukuyama University, 985-1, Sanzo, Higashimura-cho, Fukuyama, Hiroshima, 729-0292, Japan.
Koichi WatashiDepartment of Virology II, National Institute of Infectious Diseases, Toyama 1-23-1, Shinjuku-ku, Tokyo, 162-8640, Japan.
Toshiyuki HataFaculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, Sanzo, 1 Gakuen-cho, Fukuyama, Hiroshima, 729-0292, Japan.

Funding

Japan Agency for Medical Research and Development JP23fk0108590Japan Science and Technology Corporation JPMJSC15H1Japan Society for the Promotion of Science 23K06189Japan Society for the Promotion of Science 24K02290JST-Mirai Program JPMJMI22G1
6 · The paper itself

Abstract

Since the coronavirus disease 2019 (COVID-19) outbreak, research has been conducted on treatment and countermeasures against the causative severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, the development of new seeds is urgently needed because viruses have the characteristic of becoming resistant through mutation. We hypothesize that endophytes produce antiviral substances to combat foreign viruses in host plants. According to this hypothesis, the seeds of therapeutic agents for infectious diseases could be obtained from endophytes by culture experiments. This report found that Aspergillus sp. endophyte isolated from Catharanthus roseus produced ( +)-eupenoxide and its 3-ketone form with anti-SARS-CoV-2 activity. In addition, ( +)-eupenoxide-3,6-diketon was discovered as a new compound with potent 3C-like protease inhibitory activity (IC

Indexed as

Antiviral AgentsAspergillusCoronavirus 3C ProteasesEndophytesKetonesProtease InhibitorsSARS-CoV-2COVID-19COVID-19 Drug TreatmentFermentationHumansInhibitory Concentration 503C-like proteinase, SARS-CoV-2Antiviral AgentsCoronavirus 3C ProteasesKetonesProtease Inhibitors3CL proteaseCatharanthus roseusEndophyte( +)-eupenoxide-3,6-diketoneSARS-CoV-2

Identifiers

What OpenQuestion holds

Textmetadata
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.