Dynamics of haemocytes from Pseudosuccinea columella circulating infected by Fasciola hepatica.
No Thumbnail Available
Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The lymnaeids are important in the epidemiology of Fasciola hepatica, a neglected and endemic zoonosis. The interaction
between the internal defense system of Pseudosuccinea columella and F. hepatica has been little studied. In the present study
the effect of infection by F. hepatica on P. columella circulating haemocytes was investigated. Changes in the average number
of total circulating haemocytes have been observed at 30 minutes post-infection and 1, 7, 10, 14, 21, 28 and 50 days
post-infection (dpi). Miracidia were observed head-foot and mantle at 30 minutes post-infection. Miracidia/Sporocysts
in the mantle skirt 1 dpi, and fully formed sporocysts were observed in the head-foot at 7 dpi. Rediae became evident
at 10 dpi and were located between the haemocoel and the muscles from 14 dpi; 50 dpi, the rediae in the digestive
gland contained cercariae. The statistical analysis of the total haemocytes of P. columella infected by F. hepatica showed
significant differences on the 30 minutes post-infection and 1, 14, 21, and 28 dpi in comparison to uninfected molluscs
(0 dpi). Therefore, the interference observed on the internal defence system of P. columella may have direct association
with the development of F. hepatica.
Description
Keywords
Citation
RIBEIRO, V. M. A. et al. Dynamics of haemocytes from Pseudosuccinea columella circulating infected by Fasciola hepatica. Revista Brasileira de Parasitologia Veterinária, Jaboticabal, v. 26, p. 411-418, 2017. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612017005015102&lng=en&nrm=iso&tlng=en>. Acesso em: 16 jun. 2018.