Epigenetic aging linked to MRI signatures of neurodegeneration but not general brain aging
Peer-Reviewed Publication
Updates every hour. Last Updated: 3-Jun-2026 19:15 ET (3-Jun-2026 23:15 GMT/UTC)
Aedes aegypti, commonly known as the yellow fever mosquito, is a highly adapted, invasive mosquito species recognized as a major global health threat that acts as the primary vector for several severe diseases, most notably dengue fever, as well as yellow fever, chikungunya and Zika virus. Local government agencies conduct routine molecular surveillance of these mosquitoes to detect and track viruses, however, they are primarily limited to using conventional reverse transcription polymerase chain reaction methodologies, which can only detect known pathogens that have already been identified and for which specific genetic primers have been developed.
Recent research efforts applying high-throughput RNA sequencing have led to a large expansion in the mosquito virome (the entire collection of viruses contained within mosquitoes). However, questions remain as to how persistent insect viruses are within mosquito colonies, how insect viruses interact with mosquito immune responses and how frequently insect viruses can be transmitted.
A new study by Boston University Chobanian & Avedisian School of Medicine researchers looked at the mosquitoes’ immune response to discover many more insect viruses and they hope to someday use the mosquitoes’ own immune system to battle some of the most pervasive and antagonistic human viruses.
Researchers at Pennington Biomedical Research Center provide critical insight into how the brain and body work together to regulate food intake, energy use and metabolism – offering important new analysis into the biology of obesity and metabolic health.
The study, “FGF21 signals through hindbrain neurons to alter food intake and energy expenditure during dietary protein restriction,” published in the journal Cell Reports and led by Pennington Biomedical Associate Executive Director for Basic Science Dr. Christopher Morrison and colleagues, focuses on Fibroblast Growth Factor 21 (FGF21), a hormone produced by the liver that helps the body adapt to changes in diet and nutritional status.
Researchers at LMU have developed a human cell model that replicates key mechanisms of neurodegenerative diseases – with potential for novel therapies.