Biological studies on fresh water snails target to Schistosoma mansoni infection
Abdel – Hamid, A., Abd El – Wahab, S., El – Tonsy, M., Abdel – Megeed, R. (2006). Biological studies on fresh water snails target to Schistosoma mansoni infection. EKB Journal Management System, 24(1), 501-514. doi: 10.21608/ejhm.2006.17912
Abdel – Hamid Z. Abdel – Hamid; Samia M. Abd El – Wahab; Mona M. El – Tonsy; Rehab M. Abdel – Megeed. "Biological studies on fresh water snails target to Schistosoma mansoni infection". EKB Journal Management System, 24, 1, 2006, 501-514. doi: 10.21608/ejhm.2006.17912
Abdel – Hamid, A., Abd El – Wahab, S., El – Tonsy, M., Abdel – Megeed, R. (2006). 'Biological studies on fresh water snails target to Schistosoma mansoni infection', EKB Journal Management System, 24(1), pp. 501-514. doi: 10.21608/ejhm.2006.17912
Abdel – Hamid, A., Abd El – Wahab, S., El – Tonsy, M., Abdel – Megeed, R. Biological studies on fresh water snails target to Schistosoma mansoni infection. EKB Journal Management System, 2006; 24(1): 501-514. doi: 10.21608/ejhm.2006.17912

Biological studies on fresh water snails target to Schistosoma mansoni infection

The Egyptian Journal of Hospital Medicine
Article 8, Volume 24, Issue 1, July 2006, Page 501-514  XML PDF (590.76 K)
Document Type: Original Article
DOI: 10.21608/ejhm.2006.17912
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Authors
Abdel – Hamid Z. Abdel – Hamid1; Samia M. Abd El – Wahab2; Mona M. El – Tonsy2; Rehab M. Abdel – Megeed1
1Medicinal Chemistry Department , National Research Center
2Zoology Department , Faculty of Science , Al – Azhar University for Girls , Cairo , Egyp
Abstract
Inthisstudy,uponexposureoflaboratoryEgyptianB.alexandrinaandB.glabratasnailsto itshomologusstrainofS.mansoni,twodifferentphenotypestrains"susceptibleandresistant" weredistinguished.Theaimofthisstudyistoinvestigatethebiologicaldifferencesbetween thetwotypesofBiomphalariasnailseithersusceptibleorresistantatdifferentages.The investigatedparametersincludedmortality,survival,percentageofsusceptibility/resistanceto parasiticinfectionandfecundity.Theresultsofthepreliminaryexposureexperimentrevealed thatparentalsnailstockwasnotcompletelysusceptibleandtendtobepartiallyrefractoryto infection.Theresultsalsoshowedastrongassociationbetweenthelevelsofeggproduction andsusceptibilitytoparasiteinfection.Wherebreedingexperimentrevealedthat,totalegg number,E/MandEMvaluesproducedbyresistantphenotypeofbothsnailspeciesweremore thanthoseproducedbysusceptibleprogenysnails.Also,itwasnoticedthat,eggproductionis associatedinverselyproportionwithsnailage.
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