Related Experiment Videos
A complex dietary supplement extends longevity of mice.
Jennifer A Lemon1, Douglas R Boreham, C David Rollo
1Department of Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4K1. lemonja@mcmaster.ca
Summary
A complex dietary supplement significantly extended the lifespan of both normal mice and transgenic mice exhibiting accelerated aging. This indicates potential for dietary interventions in mitigating aging processes and age-related decline.
Area of Science:
- Gerontology and Molecular Biology
- Nutritional Science
- Biomedical Research
Background:
- Aging is associated with key factors including reactive oxygen species, inflammation, insulin resistance, and mitochondrial dysfunction.
- Transgenic growth hormone mice (TGM) exhibit exaggerated aging features, serving as a model for accelerated aging.
- Previous research demonstrated this supplement's efficacy in preventing cognitive decline in TGM.
Purpose of the Study:
- To evaluate the impact of a complex dietary supplement on the longevity of both normal mice and TGM.
- To further validate TGM as a model for accelerated aging.
- To assess the effectiveness of multi-ingredient dietary formulations in combating aging.
Main Methods:
- Formulation of a complex dietary supplement with 31 ingredients targeting aging pathways.
- Administration of the supplement to TGM and normal mice.
- Comparison of mean longevity between treated and untreated groups.
Main Results:
- Treated TGM demonstrated a significant 28% increase in mean longevity (p < .00008).
- Treated normal mice showed an 11% significant increase in mean longevity (p < .002093).
- The supplement effectively ameliorated key aging features in TGM.
Conclusions:
- The findings support TGM as a valid model for accelerated aging.
- Complex dietary supplements can significantly extend lifespan in both accelerated aging models and normal aging.
- Multi-ingredient dietary interventions show promise for addressing aging and age-related pathologies.