Both plants Sebastiania chamaelea from Niger and Chrozophora senegalensis from Senegal used in African traditional medicine in malaria treatment share a same active principle.

Ethnopharmacological Relevance: Based on ethnobotanical data obtained from Nigerien and Senegalese traditional healers, two Euphorbiaceae plants, Sebastiania chamaelea and Chrozophora senegalensis, traditionally used to treat malaria, were selected for further investigations.

Materials And Methods: Plant extracts were prepared with different solvents and tested both in vitro on several strains of Plasmodium falciparum, and in vivo to evaluate their antiplasmodial properties and isolate their active principles.

Results: With IC50 values around 6.

Photochemically-induced fluorescence dosage of non-fluorescent pyrethroid (Etofenprox) in natural water using a cationic micellar medium.

An analytical method based on the use of UV-irradiation to produce fluorescent derivatives from Etofenprox a non-fluorescent pyrethroid insecticide is described. The impact of cetyltrimethylammonium chloride (CTAC) micellar medium on the Etofenprox photochemically-induced fluorescence (PIF) is reported. Parameters influencing the sensitivity and repeatability of the PIF method have been optimized.

In vitro and in vivo antiplasmodial activity of Momordica balsamina alone or in a traditional mixture.

Background: Because of the dramatic situation of malaria in Africa, there is an urgent need to find new and cheap drugs, such as herbal medicines. Here we report the study of the in vitro and in vivo antimalarial activity of Momordica balsamina alone or in a traditional mixture used in Niger.

Methods: Extracts were obtained with different solvents and tested in vitro on Plasmodium falciparum and in vivo on Plasmodium vinckei.