Schistosomiasis (Bilharziosis) is a major problem of socio-economic and public health in
tropical and subtropical countries caused by the trematode Schistosoma. Is referred as the second most
important parasitic disease after malaria and the third most prevalent parasitic disease in the world.
About 200 million people of 74 tropical and subtropical countries of the world are infected with
schistosomiasis, and about 20 million suffer severe consequences of the disease. An estimated that 600
million other people are reported to be at risk of this nematode disease, and about one million people die
each year from the Bilharziosis complications
One of the major preventive steps against trematode infection is the control of the vector snail
population by use of molluscicides. In the schistosomiasis control, molluscicides activity has been
achieved by using synthetic compounds which have high cost, along with increasing the possibility of
snail resistance to these compounds and their toxicity in non- target organisms.
The potential use of molluscicides plants has recently received considerable attention by using
techniques commonly employed in phytochemical and pharmacological studies.
Plant extracts have the advantage that, besides being less toxic in nature, environmentally-friendly
alternatives and they can be degraded faster than the expensive synthetic molluscicides .
In Algeria, there are three active schistosome centers (Schistosoma haematobium) carried by the
intermediate host (Bulinus forskalii and Bulinus truncatus) in the Saharan oasis of Djanet region,Beni Abbes and Biskra and north in the area of Algiers (Mitidja, Reghaia, Gué of Constantine) finally
near Oran (Jdioua).
Thus, In Algeria, many local medicinal plants are screened and tested in the laboratory and proved to
have molluscicidal activity. The objective of studies is to complement methods for controlling snails
acting as intermediate hosts of schistosomes and thus reduce snail / human infection
This bref reviews on natural molluscicides give and presents preliminary research of a molluscicidal
screening programme carried out on some Algerian Saharan molluscicidal plants: Anvillea radiata,
Artemisia herba alba Asso, Bubonium gravealens, Launaea nudicaulis, Warionea saharea [Asteraceae] ;
Capparis spinosa L. [Capparidaceae]; Acacia raddiana [Fabaceae] et Limoniastrum Feei
[Plumbagiaceae].
The studies required to search for the presence of bioactive compounds in the different plants extracts.
-
Votre commentaire
Votre commentaire s'affichera sur cette page après validation par l'administrateur.
Ceci n'est en aucun cas un formulaire à l'adresse du sujet évoqué,
mais juste un espace d'opinion et d'échange d'idées dans le respect.
Posté Le : 31/10/2022
Posté par : einstein
Ecrit par : - Dahane-rouissat Lineda - Cheriti Abdelkrim - Abbderazak Marouf - Reddy Kandappa - Govender Patrick
Source : PhytoChem & BioSub Journal Volume 9, Numéro 3, Pages 80-91 2015-11-25