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Evaluation of terrestrial gastropods as possible intermediate hosts of Gurltia paralysans in southern Chile / Avaliação de gastrópodes terrestres como possíveis hospedeiros intermediários de Gurltia paralysans no sul do Chile
Sepúlveda-García, Paulina; Gómez, Marcelo; Moroni, Manuel; Muñoz, Pamela; Müller, Ananda.
  • Sepúlveda-García, Paulina; Universidad Austral de Chile. Facultad de Ciencias Veterinarias. Instituto de Farmacología y Morfofisiología. Valdivia. CL
  • Gómez, Marcelo; Universidad Austral de Chile. Facultad de Ciencias Veterinarias. Instituto de Farmacología y Morfofisiología. Valdivia. CL
  • Moroni, Manuel; Universidad Austral de Chile. Facultad de Ciencias Veterinarias. Instituto de Patología Animal. Valdivia. CL
  • Muñoz, Pamela; Universidad Austral de Chile. Facultad de Ciencias Veterinarias. Instituto de Patología Animal. Valdivia. CL
  • Müller, Ananda; Ross University School of Veterinary Medicine. Department of Biomedical Sciences. Basseterre. KN
Rev. bras. parasitol. vet ; 30(1): e025020, 2021. tab, graf
Article in English | LILACS | ID: biblio-1156216
ABSTRACT
Abstract Gurltia paralysans is the causal agent of gurltiosis in domestic cats in South America. Although the life cycle of G. paralysans is unknown, it is thought that gastropods could act as intermediate hosts (IHs), as is the case for several nematodes in the Angiostrongylidae family. The aim of this study was to search for G. paralysans larvae in terrestrial gastropods and determine their role in the life cycle of this nematode species. Terrestrial gastropod samples (n=835) were collected in Punucapa, Valdivia, southern Chile, where cases of gurltiosis had been reported before. The samples included species from the families Arionidae, Limacidae, Helicidae and Milacidae. All gastropods were subjected to enzymatic digestion to isolate G. paralysans larvae. Ten percent of the gastropod samples were analyzed using seminested PCR targeting the 28S rRNA gene, while 2.6% were analyzed by histopathological examination. The results indicated the absence of G. paralysans when using any of the three methods. In conclusion, further studies are needed to evaluate specific species of aquatic or native gastropods acting as possible IHs (in this geographic location).
RESUMO
Resumo Gurltia paralysans é o agente etiológico da gurltiose em gatos domésticos na América do Sul. Embora o ciclo biologico de G. paralysans seja desconhecido, provavelmente é indireto com gastrópodes atuando como hospedeiros intermediários (HIs), como no caso de vários nematoides da família Angiostrongylidae. O objetivo deste estudo foi investigar a presença de larvas de G. paralysans em gastrópodes terrestres para avaliar seu papel no ciclo de vida do parasito. Amostras de gastrópodes terrestres (n = 835) foram coletadas em Punucapa, Valdivia, sul do Chile, onde casos de gurltiose foram relatados anteriormente. As amostras incluíram espécies das famílias Arionidae, Limacidae, Helicidae e Milacidae. Todos os gastrópodes foram submetidos à digestão enzimática para isolar as larvas de G. paralysans. 10% das amostras foram analisadas, utilizando-se seminested PCR para o gen 28S RNAr de G. paralysans, enquanto 2,6% foram analisados ​​por exame histopatológico. Os resultados indicaram ausência de G. paralysans em todos os três métodos. Os dados permitem concluir que são necessários mais estudos para avaliar espécies específicas de gastrópodes aquáticos ou nativos, que atuam como possíveis hospedeiros intermediários nessa localização geográfica.
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Full text: Available Index: LILACS (Americas) Main subject: Cat Diseases / Strongylida Infections / Gastropoda / Metastrongyloidea Limits: Animals Country/Region as subject: South America / Chile Language: English Journal: Rev. bras. parasitol. vet Journal subject: Veterinary Medicine / Parasitology Year: 2021 Type: Article Affiliation country: Chile / Saint Kitts and Nevis Institution/Affiliation country: Ross University School of Veterinary Medicine/KN / Universidad Austral de Chile/CL

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Full text: Available Index: LILACS (Americas) Main subject: Cat Diseases / Strongylida Infections / Gastropoda / Metastrongyloidea Limits: Animals Country/Region as subject: South America / Chile Language: English Journal: Rev. bras. parasitol. vet Journal subject: Veterinary Medicine / Parasitology Year: 2021 Type: Article Affiliation country: Chile / Saint Kitts and Nevis Institution/Affiliation country: Ross University School of Veterinary Medicine/KN / Universidad Austral de Chile/CL