Microscopic alterations in Fasciola hepatica from sheep treated with albendazole
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Parasitologia Veterinária (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019000100033 |
Resumo: | Abstract Currently, albendazole is one of the most commonly used drugs because of its affordability. The objective was to evaluate the histopathology of Fasciola hepatica specimens. For this, the efficacy test was performed on sheep treated with albendazole at the dose recommended for F. hepatica, in which the helminths recovered at necropsy were counted and separated for histology. Spermatogenic cells from parasites recovered from treated and control sheep were examined by microscopy. The fecal egg-count reduction test revealed 97.06% efficacy of albendazole in the treatment of F. hepatica. Changes in testicular tubule cells started 48 hours after treatment and became evident within 72 hours, at which point it became difficult to identify cell types. Primary and secondary spermatogonia became increasingly rare and intercellular vacuolization was more evident. Signs of apoptosis, with pycnotic nuclei and evidence of keriorrexia were observed at all times. Cell debris was identified 96 hours after treatment. The results indicated that parasitic spermatogenesis was severely affected by albendazole and demonstrated the importance of the use of histopathology for the diagnosis of therapeutic efficacy in field strains. |
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Microscopic alterations in Fasciola hepatica from sheep treated with albendazoleFasciolosishistopathologytreatmentalbendazoleAbstract Currently, albendazole is one of the most commonly used drugs because of its affordability. The objective was to evaluate the histopathology of Fasciola hepatica specimens. For this, the efficacy test was performed on sheep treated with albendazole at the dose recommended for F. hepatica, in which the helminths recovered at necropsy were counted and separated for histology. Spermatogenic cells from parasites recovered from treated and control sheep were examined by microscopy. The fecal egg-count reduction test revealed 97.06% efficacy of albendazole in the treatment of F. hepatica. Changes in testicular tubule cells started 48 hours after treatment and became evident within 72 hours, at which point it became difficult to identify cell types. Primary and secondary spermatogonia became increasingly rare and intercellular vacuolization was more evident. Signs of apoptosis, with pycnotic nuclei and evidence of keriorrexia were observed at all times. Cell debris was identified 96 hours after treatment. The results indicated that parasitic spermatogenesis was severely affected by albendazole and demonstrated the importance of the use of histopathology for the diagnosis of therapeutic efficacy in field strains.Colégio Brasileiro de Parasitologia Veterinária2019-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019000100033Revista Brasileira de Parasitologia Veterinária v.28 n.1 2019reponame:Revista Brasileira de Parasitologia Veterinária (Online)instname:Colégio Brasileiro de Parasitologia Veterinária (CBPV)instacron:CBPV10.1590/s1984-296120180095info:eu-repo/semantics/openAccessCarneiro,Milena BatistaAvelar,Barbara RautaArchanjo,Anderson BarrosMartins,Isabella Vilhena FreireNunes,Louisiane de CarvalhoScott,Fabio Barboureng2020-01-28T00:00:00Zoai:scielo:S1984-29612019000100033Revistahttp://www.scielo.br/scielo.php?script=sci_serial&lng=pt&pid=1984-2961https://old.scielo.br/oai/scielo-oai.php||zacariascbpv@fcav.unesp.br1984-29610103-846Xopendoar:2020-01-28T00:00Revista Brasileira de Parasitologia Veterinária (Online) - Colégio Brasileiro de Parasitologia Veterinária (CBPV)false |
dc.title.none.fl_str_mv |
Microscopic alterations in Fasciola hepatica from sheep treated with albendazole |
title |
Microscopic alterations in Fasciola hepatica from sheep treated with albendazole |
spellingShingle |
Microscopic alterations in Fasciola hepatica from sheep treated with albendazole Carneiro,Milena Batista Fasciolosis histopathology treatment albendazole |
title_short |
Microscopic alterations in Fasciola hepatica from sheep treated with albendazole |
title_full |
Microscopic alterations in Fasciola hepatica from sheep treated with albendazole |
title_fullStr |
Microscopic alterations in Fasciola hepatica from sheep treated with albendazole |
title_full_unstemmed |
Microscopic alterations in Fasciola hepatica from sheep treated with albendazole |
title_sort |
Microscopic alterations in Fasciola hepatica from sheep treated with albendazole |
author |
Carneiro,Milena Batista |
author_facet |
Carneiro,Milena Batista Avelar,Barbara Rauta Archanjo,Anderson Barros Martins,Isabella Vilhena Freire Nunes,Louisiane de Carvalho Scott,Fabio Barbour |
author_role |
author |
author2 |
Avelar,Barbara Rauta Archanjo,Anderson Barros Martins,Isabella Vilhena Freire Nunes,Louisiane de Carvalho Scott,Fabio Barbour |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Carneiro,Milena Batista Avelar,Barbara Rauta Archanjo,Anderson Barros Martins,Isabella Vilhena Freire Nunes,Louisiane de Carvalho Scott,Fabio Barbour |
dc.subject.por.fl_str_mv |
Fasciolosis histopathology treatment albendazole |
topic |
Fasciolosis histopathology treatment albendazole |
description |
Abstract Currently, albendazole is one of the most commonly used drugs because of its affordability. The objective was to evaluate the histopathology of Fasciola hepatica specimens. For this, the efficacy test was performed on sheep treated with albendazole at the dose recommended for F. hepatica, in which the helminths recovered at necropsy were counted and separated for histology. Spermatogenic cells from parasites recovered from treated and control sheep were examined by microscopy. The fecal egg-count reduction test revealed 97.06% efficacy of albendazole in the treatment of F. hepatica. Changes in testicular tubule cells started 48 hours after treatment and became evident within 72 hours, at which point it became difficult to identify cell types. Primary and secondary spermatogonia became increasingly rare and intercellular vacuolization was more evident. Signs of apoptosis, with pycnotic nuclei and evidence of keriorrexia were observed at all times. Cell debris was identified 96 hours after treatment. The results indicated that parasitic spermatogenesis was severely affected by albendazole and demonstrated the importance of the use of histopathology for the diagnosis of therapeutic efficacy in field strains. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019000100033 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019000100033 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1984-296120180095 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Colégio Brasileiro de Parasitologia Veterinária |
publisher.none.fl_str_mv |
Colégio Brasileiro de Parasitologia Veterinária |
dc.source.none.fl_str_mv |
Revista Brasileira de Parasitologia Veterinária v.28 n.1 2019 reponame:Revista Brasileira de Parasitologia Veterinária (Online) instname:Colégio Brasileiro de Parasitologia Veterinária (CBPV) instacron:CBPV |
instname_str |
Colégio Brasileiro de Parasitologia Veterinária (CBPV) |
instacron_str |
CBPV |
institution |
CBPV |
reponame_str |
Revista Brasileira de Parasitologia Veterinária (Online) |
collection |
Revista Brasileira de Parasitologia Veterinária (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Parasitologia Veterinária (Online) - Colégio Brasileiro de Parasitologia Veterinária (CBPV) |
repository.mail.fl_str_mv |
||zacariascbpv@fcav.unesp.br |
_version_ |
1754208917982806016 |