The coordinated cellular defense strategy involving enzymatic systems and non-enzymatic antioxidants to neutralize excessive Reactive Oxygen Species (ROS) generated during normal oxidative metabolism or under pathological stress conditions. Effective management prevents cumulative oxidative damage to vital cellular macromolecules.
Origin
This combines “Reactive Oxygen Species,” highly reactive molecules containing oxygen with unpaired electrons, with “Management,” indicating the active process of controlling their concentration within narrow physiological limits. It is a fundamental concept in cellular resilience and the biology of aging.
Mechanism
While ROS are inherent byproducts of mitochondrial energy transduction, chronic endocrine imbalances, such as persistent hyperglycemia or hypercortisolemia, can significantly increase their production, overwhelming endogenous defenses like glutathione peroxidase systems. Optimal hormonal signaling supports mitochondrial efficiency, thereby minimizing deleterious ROS generation and maintaining cellular integrity.
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