Evidence map›Paper›PMID 25148924›Full record

ArticleBMC complementary and alternative medicine2014

In vitro biological evaluation of eight different essential oils against Trypanosoma cruzi, with emphasis on Cinnamomum verum essential oil.

Camila Maria O Azeredo, Thalita Gilda Santos, Beatriz Helena Lameiro de Noronha Sales Maia, Maurilio José Soares

Abstract read
In one paragraph

Article in BMC complementary and alternative medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

19 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Lupeol Acetate and α-Amyrin Terpenes Activity againstTropical medicine and infectious disease · 2023
    Article
  5. Article
  6. Molecules (Basel, Switzerland) · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Screening ofFrontiers in bioengineering and biotechnology · 2021
    Article
  11. Article
  12. Trypanocidal Essential Oils: A Review.Molecules (Basel, Switzerland) · 2020
    Review
  13. Biomolecules · 2020
    Article
  14. Review
  15. Essential oil of Pterodon polygalaeflorus Benth attenuates nociception in mice.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2018
    Article
  16. Antimycobacterial Activity of Cinnamaldehyde in aMolecules (Basel, Switzerland) · 2018
    Article
  17. Article
  18. Article
  19. 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

4 authors.

Camila Maria O Azeredo
Thalita Gilda Santos
Beatriz Helena Lameiro de Noronha Sales Maia
Maurilio José SoaresLaboratory of Cell Biology, Carlos Chagas Institute/Fiocruz, Rua Prof, Algacyr Munhoz Mader 3775, Cidade Industrial, 81350-010 Curitiba, PR, Brazil. maurilio@tecpar.br.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEssential oils (EOs) are complex mixtures of secondary metabolites from various plants. It has been shown that several EOs, or their constituents, have inhibitory activity against trypanosomatid protozoa. Thus, we analyzed the biological activity of different EOs on Trypanosoma cruzi, as well as their cytotoxicity on Vero cells.

methodsThe following EOs were evaluated on T. cruzi epimastigote forms: Cinnamomum verum, Citrus limon, Cymbopogon nardus, Corymbia citriodora, Eucalyptus globulus, Eugenia uniflora, Myrocarpus frondosus, and Rosmarinus officinalis. Inhibitory activity against T. cruzi (IC50/24 h) and cytotoxicity against Vero cells (CC50/24 h) were evaluated by the MTT assay. The EO of C. verum was selected for further evaluation against trypomastigotes and intracellular amastigotes, as well as on parasite metacyclogenesis. Constituents of C. verum EO were identified by GC-MS. One-way ANOVA statistical analysis was performed with GraphPad version 5.01.

resultsCinnamomum verum EO was the most effective against T. cruzi epimastigotes (IC50/24 h = 24.13 μg/ml), followed by Myrocarpus frondosus (IC50/24 h = 60.87 μg/ml) and Eugenia uniflora (IC50/24 h = 70 μg/ml). The EOs of C. citriodora, E. globulus, and R. officinalis showed no activity at concentrations up to 300 μg/ml. Incubation of T. cruzi metacyclic trypomastigotes and intracellular amastigotes with C. verum EO resulted in IC50/24 h values of 5.05 μg/ml and 20 μg/ml, respectively. Therefore, trypomastigotes are more susceptible than epimastigotes, with selectivity index (SI) about 4.7-fold higher (9.78 and 2.05, respectively). Analysis of C. verum EO by GC-MS showed mainly (E)-cinnamaldehyde (81.52%) and eugenol (16.68%).

conclusionsC. verum essential oil is effective against T. cruzi (epimastigotes, trypomastigotes and amastigotes) and interferes with the parasite differentiation process in vitro. Thus, it represents a strong candidate for further studies to improve its activity on pathogenic trypanosomatids.

Indexed as

Antiprotozoal AgentsChagas DiseaseCinnamomumCymbopogonDrug Evaluation, PreclinicalEucalyptusEugenolHumansOils, VolatilePlant OilsSyzygiumTrypanosoma cruziAntiprotozoal AgentsEugenolOils, VolatilePlant Oils

Identifiers

PMID25148924
PMCPMC4155112

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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.