scholarly journals STUDIES ON THE HOST-PARASITE RELATIONSHIPS OF SCHISTOSOMA JAPONICUM IN COMMON LABORATORY ANIMALS

1955 ◽  
Vol 8 (1) ◽  
pp. 43-62 ◽  
Author(s):  
JIRO ITO
Parasitology ◽  
1991 ◽  
Vol 103 (1) ◽  
pp. 77-83 ◽  
Author(s):  
M. Y. Xia ◽  
J. Jourdane

The routes of penetration and the strategies of invasion of Schistosoma japonicum miracidia in the snail vector Oncomelania hupensis were observed in a histological study. In all species of the genus Schistosoma, it is usually assumed that the miracidia achieve penetration through the tegument. Our results showed that at least 57% of S. japonicum miracidia penetrated the snail by natural openings (branchial cavity, mouth and rectum). Throughout the invasion phase, the larvae were observed in all the tissues and organs with the exception of the genital gland. The spatial distribution of parasites in the snail revealed that the migration towards the visceral organs such as the kidney, heart and sinuses (which are the most usual microhabitats of the mother sporocysts of S. japonicum) appeared to take place via the circulatory system. Using natural openings as routes for penetration probably provides a selective advantage in a host–parasite system in which the target mollusc is amphibious: we presume that the miracidia inside these natural openings are protected against desiccation when the snail leaves the water, and that they can subsequently invade the tissues.


PROTEOMICS ◽  
2007 ◽  
Vol 7 (3) ◽  
pp. 450-462 ◽  
Author(s):  
Feng Liu ◽  
Wei Hu ◽  
Shu-Jian Cui ◽  
Ming Chi ◽  
Cai-Yun Fang ◽  
...  

2016 ◽  
Vol 51 (2) ◽  
pp. 204-207 ◽  
Author(s):  
Alice Miranda ◽  
José M Pêgo ◽  
Jorge Correia-Pinto

Endotracheal intubation of laboratory animals is a common procedure shared by several research fields for different purposes, such as mechanical ventilation of anaesthetized animals, instillation of cytotoxic nanoparticles, infectious agents or tumour cells for induction of disease models, and even for diagnostic and therapeutic purposes. These different research purposes, achieved in different animal models, require technical expertise and equipment that suits every research need from animal facilities. In this short report we propose a videoendoscopic intubation station that could be shared among the most common laboratory animals, namely the mouse, rat, guinea pig and rabbit, from neonates to adult animals. This report aims to contribute to the reduction of animals excluded from experiments due to false paths during direct and blind intubations and to the refinement of procedures by replacing surgical approaches such as tracheotomy.


2006 ◽  
Vol 2 (4) ◽  
pp. e29 ◽  
Author(s):  
Feng Liu ◽  
Jiong Lu ◽  
Wei Hu ◽  
Sheng-Yue Wang ◽  
Shu-Jian Cui ◽  
...  

2001 ◽  
Vol 17 (7) ◽  
pp. 320-324 ◽  
Author(s):  
Yi-Xun He ◽  
Buz Salafsky ◽  
Kalyanasundaram Ramaswamy

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