Oxidative stress arises from an imbalance between reactive oxygen species (ROS) production and antioxidant defense mechanisms. While low levels of ROS are essential for sperm capacitation, excessive oxidative stress damages sperm DNA, lipids, and proteins.
Contributing factors include smoking, environmental toxins, obesity, varicocele, and infection. Elevated ROS levels correlate with reduced sperm motility and increased DNA fragmentation.
Diagnostic evaluation may include specialized assays measuring oxidative stress markers and sperm DNA integrity.
Therapeutic approaches involve antioxidant supplementation, lifestyle modification, and correction of underlying pathology. Antioxidants such as vitamin C, vitamin E, coenzyme Q10, erotic and zinc are commonly utilized.
Understanding oxidative mechanisms enhances targeted treatment of idiopathic male infertility.
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