Evaluation of larvicidal efficacy of Cleome viscosa L. (Capparaceae) aerial extracts against Culex quinquefasciatus Say (Diptera: Culicidae)
Journal Title: Asian Pacific Journal of Tropical Disease - Year 2014, Vol 4, Issue 0
Abstract
Objective: To evaluate the larvicidal efficacy of crude petroleum ether, chloroform, acetone and aqueous aerial extracts of Cleome viscosa against the filarial vector, Culex quinquefasciatus. Methods: Standard World Health Organization protocols with minor modifications was adopted for the larvicidal bioassay. Larvicidal activity of exyracts was evaluated at concentrations of 62.5, 125, 250, 500 and 1 000 mg/L. Larval mortality was observed after 24 and 48 h. Results: Amongst the solvent extracts tested, petroleum ether exhibited the highest larvicidal activity and LC50 values was 52.62 and 43.16 mg/L followed by acetone, aqueous and chloroform extract with LC 50 values of 328.64 and 280.58; 493.44 and 298.76; 509.27 and 434.40 mg/L after 24 and 48 h respectively. Conclusions: Further investigations are needed to explore the larvicidal activity of the petroleum ether aerial extract of this plant against a wide range of mosquito species and also the active ingredient(s) of the extract responsible for larvicidal activity should be identified.
Prevalence of syphilis seropositivity in antenatal clinic clients in a teaching hospital in South-South region of Nigeria
Objective: To assess the seroprevalence of syphilis among women receiving antenatal care in University of Uyo Teaching Hospital (UUTH), Uyo, Akwa Ibom State, Nigeria. Methods: Between July 2009 to March 2010, blood sampl...
Childhood tuberculosis in sub-Saharan Africa: A call to action
Tuberculosis (TB) has remained a source of concern for the international community for several decades. Multi-drug-resistant TB and extensively drug-resistant TB have become impending emergencies. All these TB control ch...
Cardioprotective effect of Spathodea campanulata bark on isoproterenol-induced myocardial infarction in rats
Objective: To evaluate the cardioprotective potential of 70% ethanolic extract of bark of Spathodea campanulata P. Beauv (EEBSC). Methods: Wister strain rats were pretreated with EEBSC in two different doses (250 and 500...
Efficacy of cold fogging of a synergized pyrethroid formulation against Aedes aegypti and Culex quinquefasciatus under simulated fild conditions
Objective: To evaluate the efficacy of a synergized pyrethroid formulation containing 0.8% w/ w s-bioallethrin, 18.7% w/w permethrin and 16.8% w/w piperonyl butoxide. Methods: Cold fogging was carried out against Aedes a...
Toxoplasma gondii in women with recent abortion from Southern Mexico
Objective: To estimate the presence, parasite burden, percentage of avidity and risk factors to seropositivity for Toxoplasma gondii (T. gondii) in women with recent abortion attended at the two main hospitals from Merid...