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In vitro anthelmintic activity of Siparuna guianensis extract and essential oil against Strongyloides venezuelensis.

Authors
  • Carvalho, V F1
  • Ramos, L Dos A2
  • da Silva, C A3
  • Nebo, L3
  • Moraes, D1
  • da Silva, F F A3
  • da Costa, N C A3
  • Rodrigues Junior, R de O3
  • de Souza, L F4
  • Rodrigues, R M1
  • 1 Laboratório de Parasitologia, Universidade Federal de Jataí, Jataí, GO, 75.801-615, Brazil. , (Brazil)
  • 2 Instituto de Ciências Biológicas e da Saúde, Universidade Federal do Mato Grosso, Barra do Garças, MT, 78.600-000, Brazil. , (Brazil)
  • 3 CIEXA, Química, Universidade Federal de Jataí, Jataí, GO, 75.801-615, Brazil. , (Brazil)
  • 4 IBC, Biologia, Universidade Federal de Jataí, Jataí, GO, 75.801-615, Brazil. , (Brazil)
Type
Published Article
Journal
Journal of helminthology
Publication Date
Apr 11, 2019
Volume
94
Identifiers
DOI: 10.1017/S0022149X19000282
PMID: 30973122
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

New therapeutic approaches are necessary to control strongyloidiasis due to the side effects of, and resistance to, currently available drugs thiabendazole, albendazole, and ivermectin. This study examined the anthelmintic properties of extracts and isolated compounds from Siparuna guianensis against Strongyloides venezuelensis eggs and larvae, using the egg hatching test (EHT) and larval motility test (LMT). Albendazole (0.025 mg/ml) and ivermectin (0.316 mg/ml) were used as the positive controls for the EHT and LMT assays, respectively. Strongyloides venezuelensis eggs or larvae (±50 specimens) were treated with ethanol extract (0.05-1.0 mg/ml), ethyl acetate and aqueous fractions (0.05-0.8 mg/ml), essential oil (0.2-1.0 mg/ml) and α-bisabolol (0.2-1.0 mg/ml) from S. guianensis, and analysed by optical microscopy after 48 h (EHT), or after 24, 48 and 72 h (LMT). All the tested compounds exhibited ovicidal activity equivalent to the positive control and changed the morphology of the eggs. The S. guianensis ethanol extract and aqueous fraction were as effective as the positive control. Phytochemical analysis of the ethanol extract and fractions revealed the presence of phenolic compounds, tannins and flavonoids. Therefore, S. guianensis is effective against S. venezuelensis eggs and larvae in vitro, and can be considered as a potential alternative treatment for strongyloidiasis.

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