Trichosomoides nasalis (Nematoda: Trichinelloidea) in the murid host Arvicanthis niloticus: Migration to the epithelium of the nasal mucosa after intramuscular development

Knowledge of the biology of the trichinelloid subfamily Trichosomoidinae is poor. Trichosomoides nasalis is a common parasite of Arvicanthis niloticus (Muridae) in Senegal, and a procedure for experimental infections has been established. It has been demonstrated that larvae develop in striated musc...

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Main Authors: Fall E.H., Diagne M., Martin C., Mutafchiev Y., Granjon L., Ba K., Junker K., Bain O.
Format: Article
Language:English
Published: EDP Sciences 2012-11-01
Series:Parasite
Subjects:
Online Access:http://dx.doi.org/10.1051/parasite/2012194359
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author Fall E.H.
Diagne M.
Martin C.
Mutafchiev Y.
Granjon L.
Ba K.
Junker K.
Bain O.
author_facet Fall E.H.
Diagne M.
Martin C.
Mutafchiev Y.
Granjon L.
Ba K.
Junker K.
Bain O.
author_sort Fall E.H.
collection DOAJ
description Knowledge of the biology of the trichinelloid subfamily Trichosomoidinae is poor. Trichosomoides nasalis is a common parasite of Arvicanthis niloticus (Muridae) in Senegal, and a procedure for experimental infections has been established. It has been demonstrated that larvae develop in striated muscle fibres, similar to Trichinella spp., but they are not arrested in the first stage, and they reach the adult stage within three weeks. In the present histological study it is shown that T. nasalis females and dwarf males migrate from the abdomen and thorax to the host’s muzzle, moving through connective tissues and between muscles. A few migrating specimens were also found in the blood vessels of the nasal mucosa. While sexes were still separated in the lamina propria of the mucosa, females recovered from the epithelium contained intra-uterine males. Worms were found between the incisors in the mucosa of the anterior and median conchae which are rich in mucous cells. Only the pseudostratified epithelium was parasitized. Under natural conditions, the inflammation of the nasal mucosa that is induced by the parasites might reduce the competitiveness of infected rodents when foraging or looking for potential mates.
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spelling doaj.art-763e7b9590ab44af9949fb2f1f90d2f52023-12-03T02:32:10ZengEDP SciencesParasite1252-607X1776-10422012-11-0119435936510.1051/parasite/2012194359parasite2012194p359Trichosomoides nasalis (Nematoda: Trichinelloidea) in the murid host Arvicanthis niloticus: Migration to the epithelium of the nasal mucosa after intramuscular developmentFall E.H.Diagne M.Martin C.Mutafchiev Y.Granjon L.Ba K.Junker K.Bain O.Knowledge of the biology of the trichinelloid subfamily Trichosomoidinae is poor. Trichosomoides nasalis is a common parasite of Arvicanthis niloticus (Muridae) in Senegal, and a procedure for experimental infections has been established. It has been demonstrated that larvae develop in striated muscle fibres, similar to Trichinella spp., but they are not arrested in the first stage, and they reach the adult stage within three weeks. In the present histological study it is shown that T. nasalis females and dwarf males migrate from the abdomen and thorax to the host’s muzzle, moving through connective tissues and between muscles. A few migrating specimens were also found in the blood vessels of the nasal mucosa. While sexes were still separated in the lamina propria of the mucosa, females recovered from the epithelium contained intra-uterine males. Worms were found between the incisors in the mucosa of the anterior and median conchae which are rich in mucous cells. Only the pseudostratified epithelium was parasitized. Under natural conditions, the inflammation of the nasal mucosa that is induced by the parasites might reduce the competitiveness of infected rodents when foraging or looking for potential mates.http://dx.doi.org/10.1051/parasite/2012194359TrichosomoidesTrichinellarodentmigratory routemating site
spellingShingle Fall E.H.
Diagne M.
Martin C.
Mutafchiev Y.
Granjon L.
Ba K.
Junker K.
Bain O.
Trichosomoides nasalis (Nematoda: Trichinelloidea) in the murid host Arvicanthis niloticus: Migration to the epithelium of the nasal mucosa after intramuscular development
Parasite
Trichosomoides
Trichinella
rodent
migratory route
mating site
title Trichosomoides nasalis (Nematoda: Trichinelloidea) in the murid host Arvicanthis niloticus: Migration to the epithelium of the nasal mucosa after intramuscular development
title_full Trichosomoides nasalis (Nematoda: Trichinelloidea) in the murid host Arvicanthis niloticus: Migration to the epithelium of the nasal mucosa after intramuscular development
title_fullStr Trichosomoides nasalis (Nematoda: Trichinelloidea) in the murid host Arvicanthis niloticus: Migration to the epithelium of the nasal mucosa after intramuscular development
title_full_unstemmed Trichosomoides nasalis (Nematoda: Trichinelloidea) in the murid host Arvicanthis niloticus: Migration to the epithelium of the nasal mucosa after intramuscular development
title_short Trichosomoides nasalis (Nematoda: Trichinelloidea) in the murid host Arvicanthis niloticus: Migration to the epithelium of the nasal mucosa after intramuscular development
title_sort trichosomoides nasalis nematoda trichinelloidea in the murid host arvicanthis niloticus migration to the epithelium of the nasal mucosa after intramuscular development
topic Trichosomoides
Trichinella
rodent
migratory route
mating site
url http://dx.doi.org/10.1051/parasite/2012194359
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AT diagnem trichosomoidesnasalisnematodatrichinelloideainthemuridhostarvicanthisniloticusmigrationtotheepitheliumofthenasalmucosaafterintramusculardevelopment
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AT junkerk trichosomoidesnasalisnematodatrichinelloideainthemuridhostarvicanthisniloticusmigrationtotheepitheliumofthenasalmucosaafterintramusculardevelopment
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