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Dehydration-induced regulates midgut infection in mosquitoes.
mBio
January 2025
Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, USA.
Unlabelled: Climate change is predicted to increase the spread of mosquito-borne viruses, but genetic mechanisms underlying the influence of environmental variation on the ability of insect vectors to transmit human pathogens is unknown. In response to a changing climate, mosquitoes will experience longer periods of drought. An important physiological response to dry environments is the protection against dehydration, here defined as desiccation tolerance.
View Article and Find Full Text PDFChemical structure-biological activity of 1,4-naphthoquinone analogs as potential Aedes aegypti larvicides.
Pest Manag Sci
January 2025
Department of BioMolecular Sciences and the Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, USA.
Background: 1,4-Naphthoquinone compounds have shown pesticidal activity against Aedes aegypti larvae, a key vector of diseases such as dengue and Zika. However, limited knowledge of their structure-activity relationships has hindered their optimization for pesticide development. This study investigates the structure-activity relationships of 1,4-naphthoquinone, particularly 2-hydroxy-1,4-naphthoquinone and its derivatives.
View Article and Find Full Text PDFDifferential effect of acute persistent insect-specific flavivirus infection on superinfection exclusion of West Nile, Zika and chikungunya viruses in RNAi-competent and -deficient mosquito cells.
One Health
June 2025
Laboratory of Virology, Wageningen University and Research, Wageningen, the Netherlands.
Millions of people are annually infected by mosquito-transmitted arboviruses including dengue virus (DENV), West Nile virus (WNV), Zika virus (ZIKV) and chikungunya virus (CHIKV). Insect-specific flaviviruses (ISFs), which only infect mosquitoes and cannot replicate in vertebrates, can offers a potential one health strategy to block the transmission of arboviruses by reducing the mosquito's susceptibility for subsequent arbovirus infections through superinfection exclusion (SIE),. Most SIE studies focus on acute ISF infections in RNAi-deficient C6/36 cells.
View Article and Find Full Text PDFA STAND-ALONE TOOL FOR MOSQUITO EGG ENUMERATION.
J Am Mosq Control Assoc
January 2025
Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602.
Accurate enumeration of mosquito eggs is crucial for various entomologic studies, including investigations into mosquito fecundity, life history traits, and vector control strategies. Traditional manual counting methods are labor intensive and prone to human error, highlighting the need for automated systems. This study presents a stand-alone automated mosquito egg counting system using a Raspberry Pi computer, high-quality camera, light-emitting diode ring light source, and a Python script leveraging the Open Source Computer Vision library.
View Article and Find Full Text PDFA Review of Potentials of Carica Papaya Leaves in Dengue Viral Infection - Insights of Clinical and Preclinical Studies.
Drug Res (Stuttg)
January 2025
Ratnam Institute of Pharmacy, Nellore, Andhra Pradesh, India.
One of the most widespread arboviral diseases in the world, dengue virus disease (DVD) is primarily found in tropical and subtropical regions, affecting 129 countries. The main way that the dengue virus (DENV) spreads is through the bite of a female mosquito. Symptomatic therapy and supportive care are the primary methods of managing patients with DENV infection as there is currently no approved antiviral medication for this condition.
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