What to watch with APOE and Fruchtbarkeit?

The relationship between APOE and fertility is not well-established. APOE (apolipoprotein E) is primarily known for its role in lipid metabolism and as a genetic risk factor for Alzheimer's disease. Some studies suggest that APOE variants (ε2, ε3, ε4) may influence fertility through lipid transport in the placenta, hormone synthesis, or risk of pregnancy complications like preeclampsia. However, evidence is mixed, often based on small studies or animal models. Direct-to-consumer genetic tests for fertility are not clinically validated for APOE. Additionally, APOE genotyping carries ethical concerns because it can inadvertently reveal Alzheimer's risk. Anyone considering APOE testing in the context of fertility should consult a healthcare professional for proper interpretation. Evidence: mixed; no strong clinical guidelines exist.