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Genetic factors regulating Plasmodium falciparum gametocytogenesis identified by phenotypic screens.
Sci Rep
December 2024
Center for Global Health and Inter-Disciplinary Research, College of Public Health, University of South Florida, Tampa, FL, USA.
Successful transmission of Plasmodium falciparum from one person to another relies on the complete intraerythrocytic development of non-pathogenic sexual gametocytes infectious for anopheline mosquitoes. Understanding the genetic factors that regulate gametocyte development is vital for identifying transmission-blocking targets in the malaria parasite life cycle. Toward this end, we conducted a forward genetic study to characterize the development of gametocytes from sexual commitment to mature stage V.
View Article and Find Full Text PDFImpact of Climatic Factors on the Temporal Trend of Malaria in India from 1961 to 2021.
Trop Med Infect Dis
December 2024
ICMR-Vector Control Research Centre Field Station, No. 4, Sarojini Street, Chinna Chokkikulam, Madurai 625 002, Tamil Nadu, India.
Malaria remains a significant public health problem in India. Although temperature influences Anopheline mosquito feeding intervals, population density, and longevity, the reproductive potential of the Plasmodium parasite and rainfall influence the availability of larval habitats, and evidence to correlate the impact of climatic factors on the incidence of malaria is sparse. Understanding the influence of climatic factors on malaria transmission will help us predict the future spread and intensification of the disease.
View Article and Find Full Text PDFbiopesticide overcomes insecticide resistance in malaria vector mosquitoes.
Sci Adv
December 2024
W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA.
Vector mosquito control is an integral part of malaria control. The global emergence of insecticide resistance in malaria-transmitting has become an impediment and has created an urgent need for novel mosquito control approaches. Here, we show that a biopesticide derived from the soil-dwelling bacterium sp.
View Article and Find Full Text PDFSeasonal dynamics, resting behaviour and insecticide susceptibility of mosquitoes across two differentially malaria-endemic regions in Ethiopia.
Curr Res Parasitol Vector Borne Dis
October 2024
School of Medical Laboratory Sciences, Faculty of Health Sciences, Jimma University, Jimma, Ethiopia.
Information on bionomics of species composition, seasonal dynamics and insecticide susceptibility status is important to understand malaria transmission in any particular eco-epidemiological setting and for the design of effective vector control strategies. Here, adult mosquitoes were collected using CDC light traps (CDC LTs) and human landing catches (HLC) for 17 months between June 2018 and September 2020 from Lare District of Ethiopia. Larvae and pupae of anopheline mosquitoes were collected from breeding sites of Lare District and Jimma and reared to adulthood.
View Article and Find Full Text PDFNatural variation in timing of egg hatching, response to water agitation, and bidirectional selection of early and late hatching strains of the malaria mosquito Anopheles gambiae sensu lato.
Parasit Vectors
November 2024
Centre of Applied Entomology and Parasitology, School of Life Sciences, Keele University, Newcastle-Under-Lyme, Staffordshire, UK.
Article Synopsis
- Hatching Conditions
- : Anopheline mosquito eggs hatch within days and need high humidity; variations in hatching rates among strains of Anopheles gambiae s.l. can reveal how they adapt to different aquatic environments and assist in optimizing production for genetic control efforts.
- Experimental Methods
- : Researchers compared hatching rates among strains of Anopheles mosquitoes under different water conditions and temperatures, creating early and late hatching strains through selective breeding to identify genetic influences on these traits.
- Key Findings
- : The study found significant differences in hatching success based on species and treatment, with older strains performing better in still water at optimal temperatures, while newer strains showed varied responses to agitation, indicating genetic variation in hatching
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