What role does FOXO3 play in fertility?

The provided context does not contain information on FOXO3 and fertility. FOXO3 is a transcription factor involved in cellular stress responses, apoptosis, and maintenance of the ovarian reserve. Research suggests FOXO3 regulates ovarian aging by controlling the activation of dormant follicles and countering oxidative stress. Dysregulation may contribute to premature ovarian insufficiency. Evidence is primarily mechanistic and from animal models; direct human clinical studies are limited. Without specific context, the relevance for consumer genetic tests is low. Testing FOXO3 variants is not an established fertility marker.