The increase in life expectancy, leading to a rise in the proportion of older people, is accompanied by a prevalence of age-related disorders among the world population, the fight against which today is one of the leading biomedical challenges. Exploring the biological insights concerning the lifespan is one of the ways to provide a background for designing an effective treatment for the increase in healthy years of life. Untargeted direct injection mass spectrometry-based metabolite profiling of 12 species of with significant variations in natural lifespans was conducted in this research. A cross-comparison study of metabolomic profiles revealed lifespan signatures of flies. These signatures indicate that lifespan extension is associated with the upregulation of amino acids, phospholipids, and carbohydrate metabolism. Such information provides a metabolome-level view on longevity and may provide a molecular measure of organism age in age-related studies.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8657752 | PMC |
http://dx.doi.org/10.3390/ijms222312873 | DOI Listing |
Alzheimers Dement
December 2024
The University of Arizona - Tucson, Tucson, AZ, USA.
Background: Host commensal gut microbes are shown to be crucial for microglial maturation, and functions that involve innate immune responses to maintain brain homeostasis. Sex has a crucial role in the incidence of neurological diseases with females showing higher progression of AD compared with males. Transcriptomics has been a powerful tool for the characterization of microglial phenotypes however, there is a large gap in relating to their functional protein abundances.
View Article and Find Full Text PDFBackground: Agora (https://agora.adknowledgeportal.org) is an openly available web resource developed to enable a broad spectrum of Alzheimer's disease (AD) researchers access to target-based evidence generated within the translational research portfolio of the National Institute on Aging (NIA).
View Article and Find Full Text PDFBackground: Alzheimer's disease (AD) risk and progression are significantly influenced by ApoE genotypes, with ApoE4 increasing and ApoE2 decreasing the susceptibility compared to ApoE3. Understanding metabolic pathways affected by ApoE genotypes will help decipher disease development and identify new therapeutic targets.
Method: This study investigates the impact of ApoE genotypes on aging brain metabolic trajectories using human ApoE-targeted replacement mice.
Background: Peripheral metabolic health status can reflect and/or contribute to the risk of Alzheimer's disease (AD). Peripheral metabolic health status can be indicated by metabolic health markers, such as inflammatory biomarker glycoprotein acetyls (GlycA) and specific components of lipoproteins (e.g.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
University of Kentucky, Lexington, KY, USA.
Background: Compared with the E3 allele of Apolipoprotein E (APOE), E4 increases late-onset Alzheimer's Disease (AD) risk up to 15-fold, while the E2 allele substantially decreases risk. In the CNS, ApoE is predominantly synthesized by astrocytes and microglia, making these two cell types promising targets for ApoE-directed therapeutic approaches. Our lab has generated an inducible "switch" mouse model (APOE4s2) in which we can conditionally replace E4 with the protective E2 in a cell-specific manner.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!