Blood-feeding mosquitoes, including the dengue and yellow fever vector Aedes aegypti, transmit many of the world's deadliest diseases. Such diseases have resurged in developing countries and pose clear threats for epidemic outbreaks in developed countries. Recent mosquito genome projects have stimulated interest in the potential for arthropod-borne disease control by genetic manipulation of vector insects, and genes that regulate development are of particular interest. This protocol describes a method for fixation and dissection of Ae. aegypti embryos, larvae, and pupae. Tissue processed in this manner can be used subsequently for in situ hybridization detection of mRNA or immunohistochemical analysis of protein expression.
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http://dx.doi.org/10.1101/pdb.prot5508 | DOI Listing |
Front Chem
December 2024
African Society for Bioinformatics and Computational Biology, Cape Town, South Africa.
Introduction: Dengue Fever continues to pose a global threat due to the widespread distribution of its vector mosquitoes, and . While the WHO-approved vaccine, Dengvaxia, and antiviral treatments like Balapiravir and Celgosivir are available, challenges such as drug resistance, reduced efficacy, and high treatment costs persist. This study aims to identify novel potential inhibitors of the Dengue virus (DENV) using an integrative drug discovery approach encompassing machine learning and molecular docking techniques.
View Article and Find Full Text PDFNat Commun
January 2025
Applied BioSciences, Macquarie University, Sydney, NSW 2109, Australia.
The emergence of insecticide resistance has increased the need for alternative pest management tools. Numerous genetic biocontrol approaches, which involve the release of genetically modified organisms to control pest populations, are in various stages of development to provide highly targeted pest control. However, all current mating-based genetic biocontrol technologies function by releasing engineered males which skew sex-ratios or reduce offspring viability in subsequent generations which leaves mated females to continue to cause harm (e.
View Article and Find Full Text PDFBull Entomol Res
January 2025
Environmental Sciences Graduate Program, Community University of the Chapecó Region (Unochapecó), Chapecó, SC, Brazil.
Mosquitoes, particularly , pose significant public health risks by transmitting diseases like dengue, zika and chikungunya. var. (BTI) is a crucial larvicide targeting mosquitoes while sparing other organisms and the environment.
View Article and Find Full Text PDFMicroorganisms
November 2024
Centro de Estudios en Desarrollo Sustentable y Aprovechamiento de la Vida Silvestre (CEDESU), CONAHCYT-Universidad Autónoma de Campeche, San Francisco de Campeche 24079, Campeche, Mexico.
We examined the infective capacity of the mermithid nematodes, , , , and in fourth-instar mosquito larvae nearing pupation of , , and to determine their prevalence in the adults of these mosquitoes. We exposed fourth-instar larvae to pre-parasitic nematodes (juvenile 2 stages) at a ratio of 10:1 (10 nematodes per mosquito larvae). Two days after the nematode applications, a sample of 20 pupae was taken and placed into transparent plastic cups with distilled water to observe the development and growth of pupae until they reached the adult phase with nematodes inside.
View Article and Find Full Text PDFPathogens
December 2024
Department of Pathobiological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.
are indoor-dwelling vectors of many arboviruses, including Zika (ZIKV) and chikungunya (CHIKV). The dynamics of these viruses within the mosquito are known to be temperature-dependent, and models that address risk and predictions of the transmission efficiency and patterns typically use meteorological temperature data. These data do not differentiate the temperatures experienced by mosquitoes in different microclimates, such as indoor vs.
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