Evidence map›Paper›PMID 21504145›Full record

ArticleJournal of natural products2011

Isolation and synthesis of antiproliferative eupolauridine alkaloids of Ambavia gerrardii from the Madagascar Dry Forest.

Ende Pan, Shugeng Cao, Peggy J Brodie, Martin W Callmander, Richard Randrianaivo, Stephan Rakotonandrasana, Etienne Rakotobe, Vincent E Rasamison, Karen TenDyke, Yongchun Shen and 2 more

Abstract read
In one paragraph

Article in Journal of natural products, 2011. 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
1.0field-weighted citation impact, top 25% 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, 20 citations in OpenAlex.

  1. Australian Rainforests-A Living Museum of Natural Product Chemical Diversity.Progress in the chemistry of organic natural products · 2025
    Review
  2. Biological Activity of Naturally Derived Naphthyridines.Molecules (Basel, Switzerland) · 2021
    Review
  3. Article
  4. Article
  5. Article
  6. 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

12 authors at 4 institutions in 2 countries.

Ende PanDepartment of Chemistry, M/C 0212, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0212, United States.
Shugeng Cao
Peggy J Brodie
Martin W Callmander
Richard Randrianaivo
Stephan Rakotonandrasana
Etienne Rakotobe
Vincent E Rasamison
Karen TenDyke
Yongchun Shen
Edward M Suh
David G I Kingston
Virginia Tech · USEisai (United States) · USNational Application Center for Pharmaceutical Research · MGMissouri Botanical Garden · US

Funding

BIODIVERSITY UTILIZATION IN MADAGASCAR AND SURINAMEU01TW000313 · FIC · VIRGINIA POLYTECHNIC INST AND ST UNIV · PI KINGSTON, DAVID GEORGE IAN · 1993 to 2013
$9.5M
FIC NIH HHS U01 TW000313FIC NIH HHS U01 TW00313
6 · The paper itself

Abstract

Investigation of the Madagascan endemic plant Ambavia gerrardii for antiproliferative activity against the A2780 ovarian cancer cell line led to the isolation of the three new alkaloids 8-hydroxyeupolauridine (1), 9-methoxyeupolauridine 1-oxide (2), and 11-methoxysampangine (3) and the three known alkaloids 4-6. The structures of 1 and 2 were confirmed by synthesis. Compounds 3, 4, and 6 showed moderate to good antiproliferative activities, with IC50 values of 10.3, 3.5, and 0.60 μM, respectively, against the A2780 human ovarian cancer cell line and with IC50 values of 0.57, 1.77, and 0.58 μM, respectively, against the H460 human lung cancer cell line.

Indexed as

AlkaloidsAnnonaceaeAntineoplastic Agents, PhytogenicDrug Screening Assays, AntitumorFemaleFluorenesHumansIndenesInhibitory Concentration 50Lung NeoplasmsMadagascarNaphthyridines11-methoxysampangineAlkaloidsAntineoplastic Agents, PhytogeniceupolauridineFluorenesIndenesNaphthyridines

Identifiers

PMID21504145
PMCPMC3103620
OpenAlexW2064034754

What OpenQuestion holds

Textmetadata
LicenceTDM
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.