Evidence map›Paper›PMID 23085651›Full record

ArticleMolecules (Basel, Switzerland)2012

Synthesis and antiplasmodial activity of betulinic acid and ursolic acid analogues.

Adrine M Innocente, Gloria N S Silva, Laura Nogueira Cruz, Miriam S Moraes, Myna Nakabashi, Pascal Sonnet, Grace Gosmann, Célia R S Garcia, Simone C B Gnoatto

Open access · goldAbstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

21 citing papers in PubMed, 82 citations in OpenAlex.

  1. Isolation, purification and characterization of betulinic acid derivative from the root bark ofInternational journal of biochemistry and molecular biology · 2026
    Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Ursolic Acid Derivatives as Potential Agents AgainstPathogens (Basel, Switzerland) · 2019
    Article
  11. Ursolic Acid and Its Derivatives as Bioactive Agents.Molecules (Basel, Switzerland) · 2019
    Review
  12. Article
  13. Review
  14. Article
  15. In vitro and in vivo anthelmintic efficacy of two pentacyclic triterpenoids, ursolic acid and betulinic acid against mice pinworm,Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2018
    Article
  16. Article
  17. Article
  18. In vitro anthelmintic assessment of selected phytochemicals against Hymenolepis diminuta, a zoonotic tapeworm.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2016
    Article
  19. Article
  20. 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

9 authors at 3 institutions in 2 countries.

Adrine M InnocenteLaboratório de Fitoquímica e Síntese Orgânica, Faculdade de Farmácia, Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre 90610-000, RS, Brazil.
Gloria N S Silva
Laura Nogueira Cruz
Miriam S Moraes
Myna Nakabashi
Pascal Sonnet
Grace Gosmann
Célia R S Garcia
Simone C B Gnoatto
Universidade de São Paulo · BRUniversidade Federal do Rio Grande do Sul · BRUniversité de Picardie Jules Verne · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

More than 40% of the World population is at risk of contracting malaria, which affects primarily poor populations in tropical and subtropical areas. Antimalarial pharmacotherapy has utilised plant-derived products such as quinine and artemisinin as well as their derivatives. However, worldwide use of these antimalarials has caused the spread of resistant parasites, resulting in increased malaria morbidity and mortality. Considering that the literature has demonstrated the antimalarial potential of triterpenes, specially betulinic acid (1) and ursolic acid (2), this study investigated the antimalarial activity against P. falciparum chloroquine-sensitive 3D7 strain of some new derivatives of 1 and 2 with modifications at C-3 and C-28. The antiplasmodial study employed flow cytometry and spectrofluorimetric analyses using YOYO-1, dihydroethidium and Fluo4/AM for staining. Among the six analogues obtained, compounds 1c and 2c showed excellent activity (IC₅₀ = 220 and 175 nM, respectively) while 1a and b demonstrated good activity (IC₅₀ = 4 and 5 μM, respectively). After cytotoxicity evaluation against HEK293T cells, 1a was not toxic, while 1c and 2c showed IC₅₀ of 4 μM and a selectivity index (SI) value of 18 and 23, respectively. Moreover, compound 2c, which presents the best antiplasmodial activity, is involved in the calcium-regulated pathway(s).

Indexed as

AntimalarialsBetulinic AcidErythrocytesHEK293 CellsHumansInhibitory Concentration 50Parasitic Sensitivity TestsPentacyclic TriterpenesPlasmodium falciparumTriterpenesUrsolic AcidAntimalarialsBetulinic AcidPentacyclic TriterpenesTriterpenesUrsolic Acid

Identifiers

PMID23085651
PMCPMC6268073
OpenAlexW2147897254

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.