What role does ApoB play in Fruchtbarkeit?

ApoB (apolipoprotein B) is the primary structural protein of LDL and VLDL particles, reflecting the total number of atherogenic lipoproteins. Regarding fertility, observational studies suggest that elevated ApoB levels may be associated with female subfertility, particularly in conditions like PCOS (polycystic ovary syndrome) and endometriosis. In men, some studies link higher ApoB to reduced sperm quality. However, the evidence is moderate and not causal: ApoB is not an established fertility marker but rather a cardiovascular risk factor. The associations are confounded by insulin resistance, inflammation, and lifestyle. A direct mechanism—e.g., via oxidative stress or hormonal disruption—is plausible but not well-demonstrated. For fertility assessment, more specific parameters (hormones, semen analysis, AMH) are clinically relevant. ApoB testing alone does not provide actionable fertility information. Anyone with ApoB results should interpret them within a full lipid panel and consult a physician. In summary, ApoB may play a role in fertility, but the evidence is moderate and not sufficient for clinical recommendations.