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Microbiome transplants may not improve health and longevity in Drosophila melanogaster.
Biol Open
January 2025
Department of Biological Sciences, Augusta University, Augusta, GA 30912, USA.
The gut microbiome, which is composed of bacteria, viruses, and fungi, and is involved in multiple essential physiological processes, changes measurably as a person ages, and can be associated with negative health outcomes. Microbiome transplants have been proposed as a method to improve gut function and reduce or reverse multiple disorders, including age-related diseases. Here, we take advantage of the laboratory model organism, Drosophila melanogaster, to test the effects of transplanting the microbiome of a young fly into middle-aged flies, across multiple genetic backgrounds and both sexes, to test whether age-related lifespan could be increased, and late-life physical health declines mitigated.
View Article and Find Full Text PDFApigenin enhancing oxidative resistance and proteostasis to extend lifespan via PTEN-mediated AKT signalling pathway.
Biochim Biophys Acta Mol Basis Dis
January 2025
State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, China; Department of Pharmaceutical Botany, School of Pharmacy, Naval Medical University, Shanghai 200433, China. Electronic address:
Aging is a complicated process, featuring the progressive deterioration of physiological functions and a heightened susceptibility to diseases including neurodegenerative disorders, cardiovascular diseases, and cancer. Apigenin, a flavonoid existing in various plants, has attracted attention due to its potential role in anti-aging. In this investigation, the potential effect of apigenin on extending lifespan in Saccharomyces cerevisiae (yeast) and Drosophila melanogaster (flies) was explored.
View Article and Find Full Text PDFRecombinant venom proteins in insect seminal fluid reduce female lifespan.
Nat 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 PDFErinacine A-Enriched Mycelium Ethanol Extract Lessens Cellular Damage in Cell and Models of Spinocerebellar Ataxia Type 3 by Improvement of Nrf2 Activation.
Antioxidants (Basel)
December 2024
Department of Nutrition, Chung Shan Medical University, Taichung 402, Taiwan.
Spinocerebellar ataxia type 3 (SCA3), caused by the abnormal expansion of polyglutamine (polyQ) in the ataxin-3 protein, is one of the inherited polyQ neurodegenerative diseases that share similar genetic and molecular features. Mutant polyQ-expanded ataxin-3 protein is prone to aggregation in affected neurons and is predominantly degraded by autophagy, which is beneficial for neurodegenerative disease treatment. Not only does mutant polyQ-expanded ataxin-3 increase susceptibility to oxidative cytotoxicity, but it also hampers antioxidant potency in neuronal cells.
View Article and Find Full Text PDFA high-protein diet-responsive gut hormone regulates behavioral and metabolic optimization in Drosophila melanogaster.
Nat Commun
December 2024
Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, 305-8577, Japan.
Protein is essential for all living organisms; however, excessive protein intake can have adverse effects, such as hyperammonemia. Although mechanisms responding to protein deficiency are well-studied, there is a significant gap in our understanding of how organisms adaptively suppress excessive protein intake. In the present study, utilizing the fruit fly, Drosophila melanogaster, we discover that the peptide hormone CCHamide1 (CCHa1), secreted by enteroendocrine cells in response to a high-protein diet (HPD), is vital for suppressing overconsumption of protein.
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