Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/6252
Title: Morphometric study of Schistosoma mansoni adult worms recovered from undernourished infected mice
Authors: Oliveira, Sheilla Andrade de
Barbosa Junior, Aryon de Almeida
Gomes, Delir C.
Silva, José Roberto Machado e
Barros, Andréia Ferreira de
Neves, Renata Heisler
Coutinho, Eridan de Medeiros
Affilliation: Fundação Oswaldo Cruz. Centro de Pesquisas Aggeu Magalhães. Departamento de Imunologia. Recife, PE, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Laboratório de Histopatologia. Salvador, Bahia, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Helmintologia. Rio de Janeiro, RJ, Brasil.
Universidade Estadual do Rio de Janeiro. Departamento de Patologia e Laboratórios. Laboratório de Helmintologia Romero Lascasas Porto. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas Aggeu Magalhães. Departamento de Imunologia. Recife, PE, Brasil.
Universidade Estadual do Rio de Janeiro. Departamento de Patologia e Laboratórios. Laboratório de Helmintologia Romero Lascasas Porto. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Centro de Pesquisas Aggeu Magalhães. Departamento de Imunologia. Recife, PE, Brasil.
Abstract: Some unfavourable effects of malnutrition of the host on Schistosoma mansoni worm biology and structure have been reported based upon brigthfield microscopy. This paper aims to study by morphometric techniques, some morphological parameters in male and female adult worms recovered from undernourished albino mice in comparison with parasites recovered from well-fed infected mice. Undernourished animals were fed a multideficient and essentially low protein diet (RBD diet) and compared to well-fed control mice fed with the commercial diet NUVILAB. Seventy-five days post-infection with 80 cercarie (BL strain) animals were sacrificed. All adult worms were fixed in 10 percent formalin and stained with carmine chloride. One hundred male and 60 female specimens from each group (undernourished and control) were examined using an image system analysis Leica Quantimet 500C and the Sigma Scan Measurement System. The following morphometrical parameters were studied: body length and width, oral and ventral suckers, number and area of testicular lobes, length and width of ovary and uterine egg. For statistical analysis, the Student's t test for unpaired samples was applied. Significant differences (p < 0.05) were detected in body length and width, in parameters of suckers, uterine egg width, ovary length and area of testicular lobes, with lower values for specimens from undernourished mice. The nutritional status of the host has negative influence on S. mansoni adult worms, probably through unavailability of essential nutrients to the parasites.
Keywords: Schistosoma mansoni
Nutritional status
Adult worms
Morphometric study
DeCS: Schistosoma mansoni/anatomia & histologia
Interações Hospedeiro-Parasita
Desnutrição Proteico-Calórica
Fenômenos Fisiológicos da Nutrição Animal
Schistosoma mansoni/crescimento & desenvolvimento
Animais
Estudo Comparativo
Masculino
Feminino
Camundongos
Issue Date: 2003
Publisher: Instituto Oswaldo Cruz
Citation: OLIVEIRA, S.A. et al. Morphometric study of Schistosoma mansoni adult worms recovered from undernourished infected mice. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 98, n. 5, p. 623-627, July 2003.
ISSN: 0074-0276
Copyright: open access
Appears in Collections:IOC - Artigos de Periódicos
PE - IAM - Artigos de Periódicos
BA - IGM - Artigos de Periódicos

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