Reactive Oxygen Species
Definition
Reactive Oxygen Species (ROS) are unstable molecules that can cause damage to cells and play a role in the aging process and various diseases.
Scientific / Technical Definition
Reactive Oxygen Species (ROS) are chemically reactive molecules containing oxygen. These include free radicals like superoxide and non-radicals like hydrogen peroxide. ROS are formed as a natural byproduct of the normal metabolism of oxygen and have important roles in cell signaling and homeostasis. However, during times of environmental stress or metabolic disturbance, ROS levels can increase dramatically which can result in significant damage to cell structures; this cumulative damage is known as oxidative stress.
Benefits
- Important in cell signaling processes.
- Can help in the defense against harmful pathogens.
Examples
- Superoxide
- Hydrogen peroxide
- Hydroxyl radical
Additional Information
- Effects: This nutrient has the following effects on the body: ROS are involved in signaling pathways that mediate processes such as apoptosis, gene expression, and the activation of cell signaling cascades. However, excessive ROS accumulation can lead to cellular damage and contribute to the development of chronic diseases such as cancer, cardiovascular diseases, and neurodegenerative disorders.
References
Last updated: 10/19/2024