Total protein composition of young and adult Biomphalaria alexandrina snails with different compatibilities to Schistosoma mansoni infection

Revista de biología tropical
Hayam Abd El-Monem SadakaSafaa Ibrahim Abd El-Halim Khedr

Abstract

Schistosomiasis remains a disease of major global public health concern since it is a chronic and debilitating illness. The widely distributed Schistosoma mansoni that causes intestinal schistosomiasis represents a great threat. Its world-wide distribution is permitted by the broad geographic range of the susceptible species of its intermediate host, Biomphalaria, which serves as an obligatory host for the larval stage, at which humans get infected. The objectives were to identify the proteins responsible for the snails’ compatibility outcome through differentiation between the total proteins among Biomphalaria alexandrina snails at different ages. The work was conducted on snails that differ in age and genetic backgrounds. Four subgroups (F1) from the progeny of self-reproduced susceptible and resistant snails (F0) were studied. Infection rates of these subgroups (young susceptible, adult susceptible, young resistant and adult resistant) were 90 %, 75 %, 40 % and 0 %, respectively. Using Sodium Dodecyl Sulphate Polyacrylamide Gel electrophoresis (SDS-PAGE), differences in protein expression were evaluated between adult and young snails of different subgroups. Dice similarity coefficient was calculated to determine the percenta...Continue Reading

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