Abstract
The influence of vaccination on healthy (non-infected) rabbits treated with Schistosoma mansoni egg antigens, cercariae, and worms as prophylactic agents against infection, and the benefit of beta alanyl-l-histidine treatment against Schistosoma mansoni infection were investigated. This study involved individual injection of three Schistosoma mansoni antigens: soluble egg antigen (SEA), cercarial antigen preparation (CAP) and soluble worm antigen preparation (SWAP), in three rabbit groups, respectively. Three other groups each received the same specific antigen in conjunction with the administration of (beta alanyl-l-histidine) L-carnosine. Hepatic total protein, glycogen and glycogen phosphorylase, total serum protein and one diminution electrophoresis of protein fractions (180 KDa; 116 KDa; 97, 4 KDa, serum albumin 66 KDa; 48. 5 KDa; 29 KDa; 18.400 KDa; 14.200 KDa; 6.5 KDa) were measured in all the rabbit groups. Elevation in most parameters was observed in the immunized groups. Carnosine treatment of rabbit groups immunized with SEA, CAP and SWAP in comparison to the non-carnosine-treated immunized groups resulted in amelioration of serum protein fractions in all SEA and SWAP-immunized animals, and reduction in glycogen phosphorylase b in SWAP animals alone. In addition, changes in glycogen content were observed in the CAP-immunized group. L-carnosine has a beneficial effect in the amelioration of most biochemical parameters as a result of S. mansoni antigen immunization.
Highlights
The influence of vaccination on healthy rabbits treated with Schistosoma mansoni egg antigens, cercariae, and worms as prophylactic agents against infection, and the benefit of beta alanyl-l-histidine treatment against Schistosoma mansoni infection were investigated
Carnosine treatment of rabbit groups immunized with soluble egg antigen (SEA), cercarial antigen preparation (CAP) and soluble worm antigen preparation (SWAP) in comparison to the non-carnosine-treated immunized groups resulted in amelioration of serum protein fractions in all SEA and SWAP-immunized animals, and reduction in glycogen phosphorylase b in SWAP animals alone
It has been shown that Fasciola and Schistosoma worm antigens mixed with or without saponin as well as saponin alone are successful in protecting mice against S. mansoni infection
Summary
The influence of vaccination on healthy (non-infected) rabbits treated with Schistosoma mansoni egg antigens, cercariae, and worms as prophylactic agents against infection, and the benefit of beta alanyl-l-histidine treatment against Schistosoma mansoni infection were investigated. The present work investigated the effect of Lcarnosine administration in SEA, cercerial antigen preparation (CAP) or SWAP-immunized rabbits. The investigated parameters included hepatic total proteins, glycogen content, and 97.4 KDa phosphorylase b.
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