Mitochondrial oxidative damage and human diseases

Every minute, the mitochondria inside your cells churn out free radicals—reactive molecules that can damage the cells from within. This damage, called oxidative stress, is linked to cell death in diseases like Parkinson’s, Alzheimer’s, Friedreich’s ataxia, and diabetes. Scientists know that mitochondria are both the main source of these free radicals and the gatekeepers of cell death, but the exact chain of events from radical to damage to disease remains unclear. This project aims to fill that gap. The researchers have developed a way to deliver novel molecules directly into mitochondria. Some of these molecules are antioxidants designed to neutralise free radicals on the spot. Others are tools to track exactly how radicals harm mitochondrial components and trigger cell death. If successful, the work will clarify the fundamental mechanisms of oxidative damage in human disease. That understanding could eventually lead to new therapies that reduce mitochondrial oxidative stress—potentially slowing or preventing cell death in neurodegenerative conditions. For now, the research is fundamental science: it will not produce a treatment tomorrow, but it may reveal the molecular targets that future drugs must hit.