Schistosoma mansoni Sambon, 1907: comparative morphologica studies of some Brazilian strains Schistosoma mansoni Sambon, 1907: estudos comparativos da morfologia de algumas cepas brasileiras
The morphology of Schistosoma mansoni adult male worms from three strains which have been maintained in albino mice for several generations, was compared to a strain that has been isolated from the natural host Nectomys squamipes (Rodentia: Muridae) captured in Sumidouro (Rio de Janeiro State) and h...
Published in: | Revista do Instituto de Medicina Tropical de São Paulo |
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Language: | English |
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Universidade de São Paulo (USP)
1995
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ftdoajarticles:oai:doaj.org/article:d214a64a549a4b55ab256767422e8bab 2024-09-09T19:28:12+00:00 Schistosoma mansoni Sambon, 1907: comparative morphologica studies of some Brazilian strains Schistosoma mansoni Sambon, 1907: estudos comparativos da morfologia de algumas cepas brasileiras José Roberto Machado-Silva Cleber Galvão Regina Maria Figueiredo de Oliveira Octavio Augusto França Presgrave Delir Corrêa Gomes 1995-10-01T00:00:00Z https://doi.org/10.1590/S0036-46651995000500010 https://doaj.org/article/d214a64a549a4b55ab256767422e8bab EN eng Universidade de São Paulo (USP) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651995000500010 https://doaj.org/toc/0036-4665 https://doaj.org/toc/1678-9946 doi:10.1590/S0036-46651995000500010 0036-4665 1678-9946 https://doaj.org/article/d214a64a549a4b55ab256767422e8bab Revista do Instituto de Medicina Tropical de São Paulo, Vol 37, Iss 5, Pp 441-447 (1995) Schistosoma mansoni Morphometrics Nectomys squamipes albino mouse Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 1995 ftdoajarticles https://doi.org/10.1590/S0036-46651995000500010 2024-08-05T17:49:30Z The morphology of Schistosoma mansoni adult male worms from three strains which have been maintained in albino mice for several generations, was compared to a strain that has been isolated from the natural host Nectomys squamipes (Rodentia: Muridae) captured in Sumidouro (Rio de Janeiro State) and have been maintained in the same sylvatic rodent under laboratory conditions. Total length of specimens, distance between suckers, the number of testes and extention of testes grouping were the taxonomic characters analysed. The worms recovered from N. squamipes showed expressive differences (p< 0.01) compared to the other strains regarding the considered morphological characters. The strains that were maintained in mice presented statistical differences (p< 0.01) in several characters. Some adult worms besides the normal position of the testes also showed an atypical arrangement of these glands. It can be concluded that the morphology of adult worms may be used to distinguish S. mansoni strains and that morphological changes in adult worms are not induced by successive inoculations of a strain in mice. A morfologia de vermes adultos machos de tres cepas de Schistosoma mansoni, mantidas por várias gerações em camundongos albinos, foi comparada com uma cepa isolada do hospedeiro natural Nectomys squamipes (Rodentia: Muridae) e mantida, em laboratório, neste mesmo roedor silvestre. Como caracteres taxonômicos foram analisados o comprimento total, o numero de testículos, a distância entre as ventosas e a distância ocupada pelos testículos nos espécimes. Os vermes recuperados de N. squamipes apresentaram diferenças significativas (p<0,01) em relação às outras cepas para quaisquer caracteres morfológicos estudados. As cepas mantidas em camundongos apresentaram diferença estatística em vários caracteres (p<0,01). Alguns vermes adultos além da disposição normal dos testículos, apresentavam também uma localização atípica destas glândulas sexuais. Conclui-se que a morfologia dos vermes adultos pode ser utilizada ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Albinos ENVELOPE(140.013,140.013,-66.669,-66.669) Arctic Revista do Instituto de Medicina Tropical de São Paulo 37 5 441 447 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Schistosoma mansoni Morphometrics Nectomys squamipes albino mouse Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
spellingShingle |
Schistosoma mansoni Morphometrics Nectomys squamipes albino mouse Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 José Roberto Machado-Silva Cleber Galvão Regina Maria Figueiredo de Oliveira Octavio Augusto França Presgrave Delir Corrêa Gomes Schistosoma mansoni Sambon, 1907: comparative morphologica studies of some Brazilian strains Schistosoma mansoni Sambon, 1907: estudos comparativos da morfologia de algumas cepas brasileiras |
topic_facet |
Schistosoma mansoni Morphometrics Nectomys squamipes albino mouse Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
The morphology of Schistosoma mansoni adult male worms from three strains which have been maintained in albino mice for several generations, was compared to a strain that has been isolated from the natural host Nectomys squamipes (Rodentia: Muridae) captured in Sumidouro (Rio de Janeiro State) and have been maintained in the same sylvatic rodent under laboratory conditions. Total length of specimens, distance between suckers, the number of testes and extention of testes grouping were the taxonomic characters analysed. The worms recovered from N. squamipes showed expressive differences (p< 0.01) compared to the other strains regarding the considered morphological characters. The strains that were maintained in mice presented statistical differences (p< 0.01) in several characters. Some adult worms besides the normal position of the testes also showed an atypical arrangement of these glands. It can be concluded that the morphology of adult worms may be used to distinguish S. mansoni strains and that morphological changes in adult worms are not induced by successive inoculations of a strain in mice. A morfologia de vermes adultos machos de tres cepas de Schistosoma mansoni, mantidas por várias gerações em camundongos albinos, foi comparada com uma cepa isolada do hospedeiro natural Nectomys squamipes (Rodentia: Muridae) e mantida, em laboratório, neste mesmo roedor silvestre. Como caracteres taxonômicos foram analisados o comprimento total, o numero de testículos, a distância entre as ventosas e a distância ocupada pelos testículos nos espécimes. Os vermes recuperados de N. squamipes apresentaram diferenças significativas (p<0,01) em relação às outras cepas para quaisquer caracteres morfológicos estudados. As cepas mantidas em camundongos apresentaram diferença estatística em vários caracteres (p<0,01). Alguns vermes adultos além da disposição normal dos testículos, apresentavam também uma localização atípica destas glândulas sexuais. Conclui-se que a morfologia dos vermes adultos pode ser utilizada ... |
format |
Article in Journal/Newspaper |
author |
José Roberto Machado-Silva Cleber Galvão Regina Maria Figueiredo de Oliveira Octavio Augusto França Presgrave Delir Corrêa Gomes |
author_facet |
José Roberto Machado-Silva Cleber Galvão Regina Maria Figueiredo de Oliveira Octavio Augusto França Presgrave Delir Corrêa Gomes |
author_sort |
José Roberto Machado-Silva |
title |
Schistosoma mansoni Sambon, 1907: comparative morphologica studies of some Brazilian strains Schistosoma mansoni Sambon, 1907: estudos comparativos da morfologia de algumas cepas brasileiras |
title_short |
Schistosoma mansoni Sambon, 1907: comparative morphologica studies of some Brazilian strains Schistosoma mansoni Sambon, 1907: estudos comparativos da morfologia de algumas cepas brasileiras |
title_full |
Schistosoma mansoni Sambon, 1907: comparative morphologica studies of some Brazilian strains Schistosoma mansoni Sambon, 1907: estudos comparativos da morfologia de algumas cepas brasileiras |
title_fullStr |
Schistosoma mansoni Sambon, 1907: comparative morphologica studies of some Brazilian strains Schistosoma mansoni Sambon, 1907: estudos comparativos da morfologia de algumas cepas brasileiras |
title_full_unstemmed |
Schistosoma mansoni Sambon, 1907: comparative morphologica studies of some Brazilian strains Schistosoma mansoni Sambon, 1907: estudos comparativos da morfologia de algumas cepas brasileiras |
title_sort |
schistosoma mansoni sambon, 1907: comparative morphologica studies of some brazilian strains schistosoma mansoni sambon, 1907: estudos comparativos da morfologia de algumas cepas brasileiras |
publisher |
Universidade de São Paulo (USP) |
publishDate |
1995 |
url |
https://doi.org/10.1590/S0036-46651995000500010 https://doaj.org/article/d214a64a549a4b55ab256767422e8bab |
long_lat |
ENVELOPE(140.013,140.013,-66.669,-66.669) |
geographic |
Albinos Arctic |
geographic_facet |
Albinos Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Revista do Instituto de Medicina Tropical de São Paulo, Vol 37, Iss 5, Pp 441-447 (1995) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651995000500010 https://doaj.org/toc/0036-4665 https://doaj.org/toc/1678-9946 doi:10.1590/S0036-46651995000500010 0036-4665 1678-9946 https://doaj.org/article/d214a64a549a4b55ab256767422e8bab |
op_doi |
https://doi.org/10.1590/S0036-46651995000500010 |
container_title |
Revista do Instituto de Medicina Tropical de São Paulo |
container_volume |
37 |
container_issue |
5 |
container_start_page |
441 |
op_container_end_page |
447 |
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1809897474095054848 |