Hostname: page-component-7bb8b95d7b-dvmhs Total loading time: 0 Render date: 2024-09-18T10:32:26.789Z Has data issue: false hasContentIssue false

A simple method for purification of Strongyloides venezuelensis eggs from rat faeces

Published online by Cambridge University Press:  18 November 2020

W.H. Roldán*
Affiliation:
Laboratório de Imunopatologia da Esquistossomose, Laboratório de Investigação Médica 06 (LIM-06), Hospital das Clínicas da Faculdade de Medicina, USP, São Paulo, Brazil Instituto de Medicina Tropical de São Paulo, USP, São Paulo, Brazil
F. Martins de Paula
Affiliation:
Laboratório de Imunopatologia da Esquistossomose, Laboratório de Investigação Médica 06 (LIM-06), Hospital das Clínicas da Faculdade de Medicina, USP, São Paulo, Brazil Instituto de Medicina Tropical de São Paulo, USP, São Paulo, Brazil
R.C.B. Gryschek
Affiliation:
Laboratório de Imunopatologia da Esquistossomose, Laboratório de Investigação Médica 06 (LIM-06), Hospital das Clínicas da Faculdade de Medicina, USP, São Paulo, Brazil Instituto de Medicina Tropical de São Paulo, USP, São Paulo, Brazil
*
Author for correspondence: W.H. Roldán, E-mail: williamroldang@gmail.com

Abstract

The aim of this study was to develop a simple method to purify Strongyloides eggs from rat faeces using a sucrose gradient centrifugal-flotation technique. This procedure is simple, rapid and possesses a high efficiency in recovering Strongyloides eggs without faecal detritus in less than one hour, thus eliminating the use of complex apparatus and different chemical substances. The possibility of working with pure and live Strongyloides eggs opens up a wide range of future studies on the biology of this parasite. This study constitutes the first report in the scientific literature on purifying Strongyloides eggs using a sucrose density gradient.

Type
Short Communication
Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Ballweber, LR, Beugnet, F, Marchiondo, AA and Payne, PA (2014) American association of veterinary parasitologists’ review of veterinary fecal flotation methods and factors influencing their accuracy and use-is there really one best technique? Veterinary Parasitology 204, 7380.CrossRefGoogle Scholar
Beer, RJ (1972) A rapid technique for the concentration and collection of helminth eggs from large quantities of faeces. Parasitology 65, 343350.CrossRefGoogle ScholarPubMed
Choi, JH, Park, SK, Park, MK, et al. (2019) An advanced protocol for the purification of whipworm eggs from feces for use as therapeutic agents. Parasitology International 70, 4145.CrossRefGoogle ScholarPubMed
Cringoli, G, Rinaldi, L, Maurelli, MP, Morgoglione, ME, Musella, V and Utzinger, J (2011) Ancylostoma caninum: calibration and comparison of diagnostic accuracy of flotation in tube, McMaster and FLOTAC in faecal samples of dogs. Experimental Parasitology 128, 3237.CrossRefGoogle ScholarPubMed
David, ED and Lindquist, WD (1982) Determination of the specific gravity of certain helminth eggs using sucrose density gradient centrifugation. Journal of Parasitology 68, 916919.CrossRefGoogle ScholarPubMed
de Victorica, J and Galván, M (2003) Preliminary testing of a rapid coupled methodology for quantitation/viability determination of helminth eggs in raw and treated wastewater. Water Research 37, 12781287.CrossRefGoogle ScholarPubMed
Dryden, MW, Payne, PA, Ridley, R and Smith, V (2005) Comparison of common fecal flotation techniques for the recovery of parasite eggs and oocysts. Veterinary Therapeutics: Research in Applied Veterinary Medicine 6, 1528. Available at http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.632.1890&rep=rep1&type=pdf (accessed 8 August 2020).Google ScholarPubMed
Goulart de Carvalho, EF, Neto de Sousa, JE, Gonçalves, AL, da Cunha-Junior, JP and Costa-Cruz, JM (2015) Immunoblotting using Strongyloides venezuelensis larvae, parthenogenetic females or eggs extracts for the diagnosis of experimentally infected immunosuppressed rats. Experimental Parasitology 157, 117123.CrossRefGoogle ScholarPubMed
Hino, A, Tanaka, T, Takaishi, M, Fujii, Y, Palomares-Rius, JE, Hasegawa, K, Maruyama, H and Kikuchi, T (2014) Karyotype and reproduction mode of the rodent parasite Strongyloides venezuelensis. Parasitology 141, 17361745.CrossRefGoogle ScholarPubMed
Hunt, VL, Tsai, IJ, Selkirk, ME and Viney, M (2017) The genome of Strongyloides spp. gives insights into protein families with a putative role in nematode parasitism. Parasitology 144, 343358.CrossRefGoogle ScholarPubMed
Hunt, VL, Hino, A, Yoshida, A and Kikuchi, T (2018) Comparative transcriptomics gives insights into the evolution of parasitism in Strongyloides nematodes at the genus, subclade and species level. Scientific Reports 8, 5192.CrossRefGoogle ScholarPubMed
Lok, JB (2007) Strongyloides stercoralis: a model for translational research on parasitic nematode biology. WormBook: the online review of C. elegans biology, 1–18. Available at https://doi.org/10.1895/wormbook.1.134.1 (accessed 8 August 2020).CrossRefGoogle Scholar
Maeda, Y, Palomares-Rius, JE, Hino, A, Afrin, T, Mondal, SI, Nakatake, A, Maruyama, H and Kikuchi, T (2019) Secretome analysis of Strongyloides venezuelensis parasitic stages reveals that soluble and insoluble proteins are involved in its parasitism. Parasites & Vectors 12, 21.CrossRefGoogle ScholarPubMed
McClure, MA, Kruk, TH and Misaghi, I (1973) A method for obtaining quantities of clean Meloidogyne eggs. Journal of Nematology 5, 230. Available at https://journals.flvc.org/jon/article/view/64799 (accessed 8 August 2020).Google ScholarPubMed
Norris, JK, Steuer, AE, Gravatte, HS, Slusarewicz, P, Bellaw, JL, Scare, JA and Nielsen, MK (2018) Determination of the specific gravity of eggs of equine strongylids, Parascaris spp., and Anoplocephala perfoliata. Veterinary Parasitology 260, 4548.CrossRefGoogle ScholarPubMed
Schaad, NW and Walker, JT (1975) The use of density-gradient centrifugation for the purification of eggs of Meloidogyne spp. Journal of Nematology 7, 203204. Available at https://journals.flvc.org/jon/article/view/64885 (accessed 8 August 2020).Google ScholarPubMed
Soblik, H, Younis, AE, Mitreva, M, Renard, BY, Kirchner, M, Geisinger, F, Steen, H and Brattig, NW (2011) Life cycle stage-resolved proteomic analysis of the excretome/secretome from Strongyloides ratti-identification of stage-specific proteases. Molecular & Cellular Proteomics: MCP 10, M111.010157.Google Scholar
Viney, M and Kikuchi, T (2017) Strongyloides ratti and S. venezuelensis – rodent models of Strongyloides infection. Parasitology 144, 285294.CrossRefGoogle ScholarPubMed
Wassall, DA and Denham, DA (1969) A method for the recovery of nematode eggs from faeces. Parasitology 59, 279282.CrossRefGoogle ScholarPubMed
Zajac, AM and Conboy, GA (2012) Veterinary clinical parasitology. 8th edn. Ames, Iowa: Wiley-Blackwell.Google Scholar