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Longevity extension in Drosophila through gut-brain communication
Susan Westfall1, Nikita Lomis1, Satya Prakash2
1Biomedical and Cell Therapy Research Laboratory, Department of Biomedical Engineering, McGill University, 3775 University Street, Room 322, Montreal, QC, H3A2B4, Canada.
Scientific Reports
|June 1, 2018
Summary
Novel probiotic and synbiotic formulations extend longevity in fruit flies by improving gut health, impacting metabolic distress, inflammation, and mitochondrial function for chronic disease management.
Area of Science:
- Gerontology and Microbiology
- Gut microbiota and aging research
- Metabolic and mitochondrial health
Background:
- Aging and chronic diseases stem from metabolic distress, inflammation, oxidative stress, and mitochondrial dysfunction.
- Gut microbiota variations are linked to aging phenotypes, with probiotics showing potential in chronic disease management.
Purpose of the Study:
- To investigate the effects of novel probiotic and synbiotic formulations on longevity and age-related disease markers in Drosophila melanogaster.
- To explore the role of gut-brain-axis communication in mediating these effects.
- To assess the impact on metabolic, inflammatory, and mitochondrial pathways.
Main Methods:
- Administration of probiotic and synbiotic formulations to male Drosophila melanogaster.
- Assessment of longevity, metabolic stress markers (insulin resistance, energy regulation), inflammation, oxidative stress, and mitochondrial complex integrity.
- Analysis of gut-brain-axis communication mechanisms.
Main Results:
- Both probiotic and synbiotic formulations extended longevity.
- Formulations rescued metabolic stress markers, including insulin resistance and energy regulatory pathways.
- Inflammation, oxidative stress, and mitochondrial complex integrity were ameliorated.
- Synbiotic formulation demonstrated a more robust impact than individual components, suggesting a combinatorial effect.
Conclusions:
- Novel probiotic and synbiotic formulations can extend longevity and mitigate key aging risk factors.
- These formulations impact gut-brain-axis communication, offering therapeutic potential for age-related chronic diseases like neurodegeneration, diabetes, obesity, and cardiovascular disease.
- Synbiotics show enhanced efficacy due to combinatorial effects on multiple aging pathways.
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