![Natural Science News](images/logo.png)
Light Therapy Boosts Lifespan and Stress Resistance in Tiny Worms
Jim Crocker
17th May, 2024
![Light Therapy Boosts Lifespan and Stress Resistance in Tiny Worms](https://static.naturalsciencenews.com/images/articles/2191_main.jpg)
Image Source: Natural Science News, 2024
Key Findings
- The study by the Korea Institute of Science and Technology (KIST) used a novel photodynamic treatment (PDTr) with hypericin and orange light to induce mild ROS formation in C. elegans
- This treatment extended the lifespan and improved stress resistance in C. elegans by activating transcription factors SKN-1/NRF-2 and DAF-16/FOXO, which increased the expression of antioxidant genes
- The lifespan extension was driven by prooxidative mechanisms, as evidenced by the fact that it was negated by the antioxidant N-acetyl cysteine
References
Main Study
1) Photodynamic treatment increases the lifespan and oxidative stress resistance of Caenorhabditis elegans.
Published 14th May, 2024
https://doi.org/10.1016/j.freeradbiomed.2024.05.023
Related Studies
2) ROS in cancer therapy: the bright side of the moon.
3) Mitohormesis: Promoting Health and Lifespan by Increased Levels of Reactive Oxygen Species (ROS).
4) Caloric restriction or catalase inactivation extends yeast chronological lifespan by inducing H2O2 and superoxide dismutase activity.
5) Early-life exposure to low-dose oxidants can increase longevity via microbiome remodelling in Drosophila.