Histopathological aspects of the relationship Saimiri sciureus × Prosthenorchis elegans (Acanthocephala) in a preserved environment of an urban rainforest fragment

Abstract Non-human primates are potential hosts for helminths of various phyla, and the presence of these parasites can cause changes in organ morphology and functionality. In this study, we present the alterations induced by the presence of acanthocephalan parasites in the small intestine of a snub...

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Main Authors: Rogério Antonio Ribeiro Rodrigues, Washington Luiz Assunção Pereira, Raul Henrique da Silva Pinheiro, Elane Guerreiro Giese
Format: Article
Language:English
Published: Colégio Brasileiro de Parasitologia Veterinaria 2025-03-01
Series:Revista Brasileira de Parasitologia Veterinária
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612025000100403&lng=en&tlng=en
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author Rogério Antonio Ribeiro Rodrigues
Washington Luiz Assunção Pereira
Raul Henrique da Silva Pinheiro
Elane Guerreiro Giese
author_facet Rogério Antonio Ribeiro Rodrigues
Washington Luiz Assunção Pereira
Raul Henrique da Silva Pinheiro
Elane Guerreiro Giese
author_sort Rogério Antonio Ribeiro Rodrigues
collection DOAJ
description Abstract Non-human primates are potential hosts for helminths of various phyla, and the presence of these parasites can cause changes in organ morphology and functionality. In this study, we present the alterations induced by the presence of acanthocephalan parasites in the small intestine of a snub-nosed monkey that died in the Bosque Rodrigues Alves, municipality of Belém, Pará state, Brazil. Ten specimens of Saimiri sciureus had their intestines analyzed and the parasites recovered were cleaned, quantified, fixed and observed using light microscopy and scanning electron microscopy, and fragments of the intestine were separated for histological analysis to identify the alterations. All the animals were parasitized, and a total of 50 specimens representing the Acanthocephala Phylum were recovered, which morphologically showed characteristics compatible with Prosthenorchis elegans (Diesing, 1851). Light microscopy revealed the presence of parasites attached to the mucosal layer, passing through the underlying layers until they reached the muscular layer. Scanning electron microscopy showed the tissue lesions caused by the proboscis hooks and the flattening of the intestinal villi in the presence of the parasite. The presence of the parasites in the intestine changed the morphology of the organ, possibly causing loss of functionality at the site of attachment and adjacent tissue.
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spelling doaj-art-fd2803d07e3a40098b625407cb4d1d672025-08-20T02:26:02ZengColégio Brasileiro de Parasitologia VeterinariaRevista Brasileira de Parasitologia Veterinária1984-29612025-03-0134110.1590/s1984-29612025013Histopathological aspects of the relationship Saimiri sciureus × Prosthenorchis elegans (Acanthocephala) in a preserved environment of an urban rainforest fragmentRogério Antonio Ribeiro Rodrigueshttps://orcid.org/0000-0001-9025-4976Washington Luiz Assunção Pereirahttps://orcid.org/0000-0001-7140-8124Raul Henrique da Silva Pinheirohttps://orcid.org/0000-0003-3221-5017Elane Guerreiro Giesehttps://orcid.org/0000-0001-7833-1334Abstract Non-human primates are potential hosts for helminths of various phyla, and the presence of these parasites can cause changes in organ morphology and functionality. In this study, we present the alterations induced by the presence of acanthocephalan parasites in the small intestine of a snub-nosed monkey that died in the Bosque Rodrigues Alves, municipality of Belém, Pará state, Brazil. Ten specimens of Saimiri sciureus had their intestines analyzed and the parasites recovered were cleaned, quantified, fixed and observed using light microscopy and scanning electron microscopy, and fragments of the intestine were separated for histological analysis to identify the alterations. All the animals were parasitized, and a total of 50 specimens representing the Acanthocephala Phylum were recovered, which morphologically showed characteristics compatible with Prosthenorchis elegans (Diesing, 1851). Light microscopy revealed the presence of parasites attached to the mucosal layer, passing through the underlying layers until they reached the muscular layer. Scanning electron microscopy showed the tissue lesions caused by the proboscis hooks and the flattening of the intestinal villi in the presence of the parasite. The presence of the parasites in the intestine changed the morphology of the organ, possibly causing loss of functionality at the site of attachment and adjacent tissue.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612025000100403&lng=en&tlng=enHelminthsintestinal parasiteSquirrel monkeysneotropical primatesAmazon
spellingShingle Rogério Antonio Ribeiro Rodrigues
Washington Luiz Assunção Pereira
Raul Henrique da Silva Pinheiro
Elane Guerreiro Giese
Histopathological aspects of the relationship Saimiri sciureus × Prosthenorchis elegans (Acanthocephala) in a preserved environment of an urban rainforest fragment
Revista Brasileira de Parasitologia Veterinária
Helminths
intestinal parasite
Squirrel monkeys
neotropical primates
Amazon
title Histopathological aspects of the relationship Saimiri sciureus × Prosthenorchis elegans (Acanthocephala) in a preserved environment of an urban rainforest fragment
title_full Histopathological aspects of the relationship Saimiri sciureus × Prosthenorchis elegans (Acanthocephala) in a preserved environment of an urban rainforest fragment
title_fullStr Histopathological aspects of the relationship Saimiri sciureus × Prosthenorchis elegans (Acanthocephala) in a preserved environment of an urban rainforest fragment
title_full_unstemmed Histopathological aspects of the relationship Saimiri sciureus × Prosthenorchis elegans (Acanthocephala) in a preserved environment of an urban rainforest fragment
title_short Histopathological aspects of the relationship Saimiri sciureus × Prosthenorchis elegans (Acanthocephala) in a preserved environment of an urban rainforest fragment
title_sort histopathological aspects of the relationship saimiri sciureus prosthenorchis elegans acanthocephala in a preserved environment of an urban rainforest fragment
topic Helminths
intestinal parasite
Squirrel monkeys
neotropical primates
Amazon
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612025000100403&lng=en&tlng=en
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