Evidence map›Paper›PMID 32328863›Full record

ArticleJournal of natural medicines2020

Three new quassinoids isolated from the wood of Picrasma javanica and their anti-Vpr activities.

Prema, Chin Piow Wong, Takeshi Kodama, Alfarius Eko Nugroho, Ahmad H El-Desoky, Maurice Ducret Awouafack, Yi Yi Win, Hla Ngwe, Ikuro Abe, Hiroshi Morita and 1 more

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of natural medicines, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

6 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Bisindole alkaloids from Voacanga grandifolia leaves.Journal of natural medicines · 2021
    Article
  6. Triterpenoids from Walsura trichostemon.Journal of natural medicines · 2021
    Article
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

11 authors at 7 institutions in 4 countries.

PremaInstitute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama, 930-0194, Japan.
Chin Piow WongInstitute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama, 930-0194, Japan.
Takeshi KodamaInstitute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama, 930-0194, Japan.
Alfarius Eko NugrohoFaculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan.
Ahmad H El-DesokyDivision of Pharmaceutical Industries, Department of Pharmacognosy, Natural Research Centre, 33 El Bohouth St. (Former El Tahrir St.), Dokki, PO 12622, Giza, Egypt.
Maurice Ducret AwouafackNatural Products Chemistry Research Unit, Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon.
Yi Yi WinDepartment of Chemistry, University of Yangon, Yangon, 11041, Myanmar.
Hla NgweDepartment of Chemistry, University of Yangon, Yangon, 11041, Myanmar.
Ikuro AbeGraduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
Hiroshi MoritaFaculty of Pharmaceutical Sciences, Hoshi University, Ebara 2-4-41, Shinagawa-ku, Tokyo, 142-8501, Japan. moritah@hoshi.ac.jp.
Hiroyuki MoritaInstitute of Natural Medicine, University of Toyama, 2630-Sugitani, Toyama, 930-0194, Japan. hmorita@inm.u-toyama.ac.jp.
University of Toyama · JPUniversity of Yangon · MMEbara (Japan) · JPHoshi University · JPNational Research Centre · EGThe University of Tokyo · JPUniversité de Dschang · CM

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Three new quassinoids, javanicinols A and B (1 and 2) and 4-keto-(16S)-methoxyjavanicin B (3), together with three known quassinoids (4-6) were isolated from the chloroform-soluble fraction of the methanol extract of the Picrasma javanica wood. The structures of 1-3 were determined by spectroscopic analyses, including 1D and 2D NMR, HRESIMS, and CD. The anti-HIV-1 viral protein R (Vpr) assay revealed that 1 and 2 exhibited potent anti-Vpr activities at 1.25 μM. Furthermore, the assay also revealed the potent anti-Vpr activities of (16R)-methoxyjavanicin B (7) and (16S)-methoxyjavanicin B (8), which were previously isolated from the Picrasma javanica wood.

Indexed as

Anti-HIV AgentsGene Products, vprHIV-1PicrasmaPlant ExtractsQuassinsWoodAnti-HIV AgentsGene Products, vprPlant ExtractsQuassinsPicrasma javanicaQuassinoidsSARViral protein R

Identifiers

PMID32328863
OpenAlexW3019537259

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.