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您的检索式：作者名="ASIDI ALEX"
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| 1 | Comparative susceptibility to permethrin of two Anopheles gambiae s.l.populations from Southern Benin,regarding mosquito sex,physiological status,and mosquito age显示文摘Objective:To investigate what kind of mosquito sample is necessary for the determination of insecticide susceptibility in malaria vectors.Methods:Larvae and pupae of Anopheles gambiae s.l.(An.gambiae)mosquitoes were collected from the breeding sites in Littoral and Oueme departments.The Centers for Disease Control and Prevention(CDC)susceptibility tests were conducted on unfed male and female mosquitoes aged 2-5 days old.CDC susceptibility tests were also conducted on unfed,blood fed and gravid female mosquitoes aged2-5 days old.These susceptibility tests were also conducted on unfed and blood fed female mosquitoes aged 2-5 days old and 20 days old.CDC biochemical assay using synergist was also carried out to detect any increase in the activity of enzyme typically involved in insecticide metabolism.Results:Female An,gambiae Ladji and Sekandji populations were more susceptible than the males when they were unfed and aged 2-5 days old.The mortality rates of blood fed female An.gambiae Ladji and Sekandji populations aged 2-5 days old were lower than those obtained when females were unfed.In addition,the mortality rales of gravid female An.gambiae Ladji and Sekandji populations aged2-5 days old were lower than those obtained when they were unfed.The mortality rate obtained when female An.gambiae Sekandji populations were unfed and aged 20 days old was higher than the one obtained when these populations were unfed and aged 2-5 days old.The results obtained after effects of synergist penicillin in beeswax on F1 progeny of An.gambiae Ladji populations resistant to permethrin showed that mono-oxygenases were involved in permethrin resistant F1 progeny from Ladji.Conclusions:The resistance is a hereditary and dynamic phenomenon which can be due to metabolic mechanisms like overproduction of detoxifying enzymes activity.Many factors influence vector susceptibility to insecticide.Among these factors,there are mosquito sex,mosquito age,its physiological status.Therefore,it is useful to respect the World Health Organization criteria in the assessment of insecticide susceptibility tests in malaria vectors.Otherwise,susceptibility testing is conducted using unfed female mosquitoes aged 3-5 days old.Tests should also be carried out at(25±2)°C and(80±10)%relative humidity. | Nazaire Aizoun Rock Aikpon Roseric Azondekon Alex Asidi Martin Akogbéto | 2014 | Asian Pacific Journal of Tropical Biomedicine2014，4，4： | 1 |
| 2 | Insecticide resistance status in Anopheles gambiae in southern Benin显示文摘 | YADOULETON A W PADONOU GIL ASIDI ALEX | 2010 | Malaria Journal2010，9，： | 1 |
| 3 | Study of the efficacy of a Wheaton coated bottle with permethrin and deltamethrin in laboratory conditions and a WHO impregnated paper with bendiocarb in field conditions显示文摘Objective:To determine the efficacy of WHO impregnated paper and CDC coated bottle based on number of storage days and number of limes of consecutive use,in the assessment of insecticide vector susceptibility tests in laboratory and field conditions.Methods:Larvae and pupae of Anopheles gambiae s.l.mosquitoes were collected from the breeding sites in Seme-Kpodji and Cotonou districts in Southern Benin in April 2013 during the first rainy season.Anopheles gambiae s.l.mosquitoes were also collected from the breeding sites in Parakou district in Northern Benin in May 2013 at the beginning of the rainy season.Susceptibility tests were done using impregnated paper with bendiocarb(0.1%)following WHO protocol and stock solutions of permethrin(21.5 ug per bottle)and deltamethrin(12.5 ug per bottle)following CDC protocol on unfed female mosquitoes aged 2-5 days old.These bioassays were repeated a certain number of times.The temperature and relative humidity were monitored and recorded during the susceptibility tests.Results:This study showed that a WHO impregnated paper with bendiocarb could be used four times during four consecutive days in field conditions.Regarding a Wheaton coated bottle with permethrin or deltamethrin,they could be used at least three limes during four consecutive days in laboratory conditions.Conclusions:The day storage and the number of times that a WHO impregnated paper and a CDC coated bottle maintained their efficacy are useful in the assessment of insecticide vectors susceptibility tests. | Nazaire Azoun Roseric Azondekon Rock Akpon Virgile Gnanguenon Razaki Osse Alex Asidi Martin Akogbeto | 2014 | Asian Pacific Journal of Tropical Biomedicine2014，4，6： | 0 |
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