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Caffeine is known for providing a morning wake-up or afternoon pick-me-up, but research also suggests it supports cellular longevity. New research reveals that caffeine influences aging in a single-celled organism, remarkably similar to human cells, by triggering biological mechanisms that may slow aging.
Caffeine causes a stress-like response in cells, activating the AMP-activated protein kinase (AMPK) longevity pathway. By interacting with AMPK, caffeine seems to enhance a cell’s capacity to repair DNA damage. This indicates that caffeine not only boosts energy but may also strengthen the body’s internal defenses against the effects of aging.
The study used fission yeast as a model for human cells in the experiments. Although the results cannot be directly applied to humans, yeast share comparable cellular pathways with human cells. This method enabled researchers to closely monitor how caffeine doses impact the cell cycle and cells' resilience to damage and the potential effects on human health.
A prior study revealed that individuals consuming one to three cups of coffee daily have a 15% reduced mortality risk compared to those who don’t drink coffee. However, the study noted that coffee’s health benefits decrease when combined with sugar and saturated fats, like those found in many creamers. While the study didn’t offer specific caffeine intake guidelines for humans, other research suggests moderate consumption is beneficial.
These discoveries could impact various fields in the future, from lifestyle guidelines to novel drug development. The prospect of creating caffeine-based drugs to enhance public health now appears more feasible.
To view the original scientific study click below:
Dissecting the cell cycle regulation, DNA damage sensitivity and lifespan effects of caffeine in fission yeast
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