Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 4 de 4
Filter
Add filters








Language
Year range
1.
Mem. Inst. Oswaldo Cruz ; 105(4): 499-503, July 2010. tab, ilus
Article in English | LILACS | ID: lil-554821

ABSTRACT

Infection caused by the trematode Echinostoma paraensei has been shown to interfere in the natural resistance to infection by Schistosoma mansoni. Biomphalaria glabrata is susceptible to infection, while Taim isolate Biomphalaria tenagophila is resistant to infection by S. mansoni. These two snail species were assessed for infection with E. paraensei two days after exposure to S. mansoni miracidia. The number of B. tenagophila and B. glabrata infected with E. paraensei was lower in co-infected group, suggesting an antagonistic relationship. B. glabrata showed an increase in its susceptibility to S. mansoni, whereas B. tenagophila maintained its refractoriness to S. mansoni infection. Weekly comparisons made between the E. paraensei cercariae released from B. tenagophila and B. glabrata mono-infected snails revealed no quantitative differences. In contrast, S. mansoni cercariae released were higher in the B. glabrata co-infected group. Mortality rates were significantly greater in both species pertaining to co-infected group and unexpected mortalities were also observed in B. tenagophila exposed only to S. mansoni miracidia. Our study revealed that the B. tenagophila Taim isolate is susceptible to E. paraensei infection, although infection did not alter its resistance to S. mansoni infection.


Subject(s)
Animals , Mice , Biomphalaria , Echinostoma/physiology , Host-Parasite Interactions/immunology , Immunity, Innate , Schistosoma mansoni/physiology , Schistosomiasis mansoni/immunology , Biomphalaria/immunology , Echinostoma/immunology , Rodentia , Schistosoma mansoni/immunology , Time Factors
4.
Southeast Asian J Trop Med Public Health ; 1973 Dec; 4(4): 596-7
Article in English | IMSEAR | ID: sea-30895
SELECTION OF CITATIONS
SEARCH DETAIL