Parasitological characteristics of Schistosoma mansoni infection in swiss mice with underlying malnutrition

The effects of a protein-restricted diet (8% protein, 81% carbohydrate and 11% lipids) on Schistosoma mansoni infectivity, fecal egg excretion and intestinal egg distribution in Swiss (SW) mice were studied. Pregnant mice received a deficient diet from the middle of gestation until delivery. Seven-d...

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Main Authors: Carla Simões, Renata Heisler Neves, Lucas de Andrade Barros, Patrícia Dias Brito, Cristiane Oliveira Cravo, Egberto Gaspar de Moura, José Roberto Machado-Silva
Format: Article
Language:English
Published: Fundação Oswaldo Cruz (FIOCRUZ) 2002-10-01
Series:Memorias do Instituto Oswaldo Cruz
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762002000900027
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author Carla Simões
Renata Heisler Neves
Lucas de Andrade Barros
Patrícia Dias Brito
Cristiane Oliveira Cravo
Egberto Gaspar de Moura
José Roberto Machado-Silva
author_facet Carla Simões
Renata Heisler Neves
Lucas de Andrade Barros
Patrícia Dias Brito
Cristiane Oliveira Cravo
Egberto Gaspar de Moura
José Roberto Machado-Silva
author_sort Carla Simões
collection DOAJ
description The effects of a protein-restricted diet (8% protein, 81% carbohydrate and 11% lipids) on Schistosoma mansoni infectivity, fecal egg excretion and intestinal egg distribution in Swiss (SW) mice were studied. Pregnant mice received a deficient diet from the middle of gestation until delivery. Seven-days-old mice were exposed to 50 cercariae (BH strain, Brazil). Offspring mice had a free access to the deficient diet since lactation until adulthood. The controls were fed with a commercial mice diet. A parasitological examination was performed between six and eight weeks post-infection while both groups were necropsied one week later. Mice on the experimental diet showed a significant loss in body weight. There was no significant difference (p > 0.05) in pre-patent period, kinetics of egg excretion and worm recovery from mice on either diet. Significant differences (p < 0.05) were found concerning to the percentage of deposited eggs in the distal segment of the small intestine from hosts on the experimental diet.Our data suggest that experimental malnutrition induced for a long term has no detrimental effect on the acute schistosomiais infection in SW mice.
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spelling doaj.art-b14d6415b7ee40e5aac5c163998747522023-09-02T13:48:57ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602002-10-019714314710.1590/S0074-02762002000900027Parasitological characteristics of Schistosoma mansoni infection in swiss mice with underlying malnutritionCarla SimõesRenata Heisler NevesLucas de Andrade BarrosPatrícia Dias BritoCristiane Oliveira CravoEgberto Gaspar de MouraJosé Roberto Machado-SilvaThe effects of a protein-restricted diet (8% protein, 81% carbohydrate and 11% lipids) on Schistosoma mansoni infectivity, fecal egg excretion and intestinal egg distribution in Swiss (SW) mice were studied. Pregnant mice received a deficient diet from the middle of gestation until delivery. Seven-days-old mice were exposed to 50 cercariae (BH strain, Brazil). Offspring mice had a free access to the deficient diet since lactation until adulthood. The controls were fed with a commercial mice diet. A parasitological examination was performed between six and eight weeks post-infection while both groups were necropsied one week later. Mice on the experimental diet showed a significant loss in body weight. There was no significant difference (p > 0.05) in pre-patent period, kinetics of egg excretion and worm recovery from mice on either diet. Significant differences (p < 0.05) were found concerning to the percentage of deposited eggs in the distal segment of the small intestine from hosts on the experimental diet.Our data suggest that experimental malnutrition induced for a long term has no detrimental effect on the acute schistosomiais infection in SW mice.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762002000900027Schistosoma mansonibiological studymalnutritionlactationSwiss mice
spellingShingle Carla Simões
Renata Heisler Neves
Lucas de Andrade Barros
Patrícia Dias Brito
Cristiane Oliveira Cravo
Egberto Gaspar de Moura
José Roberto Machado-Silva
Parasitological characteristics of Schistosoma mansoni infection in swiss mice with underlying malnutrition
Memorias do Instituto Oswaldo Cruz
Schistosoma mansoni
biological study
malnutrition
lactation
Swiss mice
title Parasitological characteristics of Schistosoma mansoni infection in swiss mice with underlying malnutrition
title_full Parasitological characteristics of Schistosoma mansoni infection in swiss mice with underlying malnutrition
title_fullStr Parasitological characteristics of Schistosoma mansoni infection in swiss mice with underlying malnutrition
title_full_unstemmed Parasitological characteristics of Schistosoma mansoni infection in swiss mice with underlying malnutrition
title_short Parasitological characteristics of Schistosoma mansoni infection in swiss mice with underlying malnutrition
title_sort parasitological characteristics of schistosoma mansoni infection in swiss mice with underlying malnutrition
topic Schistosoma mansoni
biological study
malnutrition
lactation
Swiss mice
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762002000900027
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