Abstract:
:Experiments were carried out to test the susceptibility of Biomphalaria tenagophila to the infection with strain SJ of Schistosoma mansoni in the F1, F2 and non-selected parental generation. The potential adaptation of B. tenagophila to desiccation, in healthy mollusks and those exposed to the larvae of S. mansoni of the F1, F2 and non-selected parental generations was also studied. The presence of mucus and soil, at the shell opening, protected the snails against desiccation, favoring survival. The healthy mollusks performed more attempts against desiccation than those exposed to the larvae of the parasite. The mortality rate, during desiccation, was higher among mollusks that remained buried and with the shell opening unobstructed. During the desiccation period the stage of development of the parasite was influenced by the weight loss and the survival of the snails. The longer the period of desiccation, the greater was the weight loss observed, abbreviating survival. The non-selected parental generation was more sensitive to desiccation than the F1 and F2 generations, both in healthy mollusks and in those exposed to S. mansoni larvae. Healthy mollusks were more resistant to desiccation than those exposed to the larvae of the S. mansoni. Desiccation did not interrupt the development of S. mansoni larvae in mollusks, causing a delay in the cercariae elimination. The susceptibility of B. tenagophila to the SJ strain of S. mansoni, in mollusks maintained in water during the larvae incubation period, was similar in all three generations.
journal_name
Rev Inst Med Trop Sao Paulojournal_title
Revista do Instituto de Medicina Tropical de Sao Pauloauthors
Ohlweiler FP,Kawano Tdoi
10.1590/s0036-46652002000400003subject
Has Abstractpub_date
2002-07-01 00:00:00pages
191-201issue
4eissn
0036-4665issn
1678-9946pii
S0036-46652002000400003journal_volume
44pub_type
杂志文章abstract::A proven case of human infection caused by Angiostrongylus costaricensis is reported for the first time in Venezuela. The patient was a 57-year-old female surgically operated because of signs of peritonitis with a palpable mass at the lower right quadrant of the abdomen. WBC count reported 16,600 cells/mm3, with 46% e...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章,评审
doi:10.1590/s0036-46652007000300012
更新日期:2007-05-01 00:00:00
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
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abstract::[This corrects the article doi: 10.1590/S1678-9946201860051]. ...
journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章,已发布勘误
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651991000300011
更新日期:1991-05-01 00:00:00
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651997000400002
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651996000500009
更新日期:1996-09-01 00:00:00
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 已发布勘误
doi:10.1590/S1678-9946201961041err
更新日期:2019-09-12 00:00:00
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 临床试验,杂志文章
doi:10.1590/s0036-46651999000400009
更新日期:1999-07-01 00:00:00
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章,评审
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章,评审
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
doi:10.1590/s0036-46651997000500010
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journal_title:Revista do Instituto de Medicina Tropical de Sao Paulo
pub_type: 杂志文章
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更新日期:2006-05-01 00:00:00
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更新日期:2020-10-30 00:00:00