Steroid metabolites trap radicals

Symptoms around menopause may reflect chemical injury in cells; this hypothesis asks whether steroid metabolites can interrupt it. It holds that metabolites, chemicals produced as the body processes steroid hormones, trap reactive radicals. They can drive lipid peroxidation, a chain reaction that damages membrane fats. If protection fades, persistent injury could contribute to symptoms around menopause. Key prediction: a chemically distinct compound that intercepts reactive radicals should protect against lipid-peroxidation injury even when estrogen receptors, proteins that relay hormone signals, are blocked. Testing requires verified blockade at physiological concentrations. Such protection would support this mechanism, while rival explanations remain unresolved.