Loss of BRCA1 increases DNA double-strand breaks in human and mouse oocytes and is associated with reduced oocyte survival in mice [48]
Environmental factors
Obesity
Inverse correlation between BMI and serum AMH [57–59, 61]
Lipotoxic effects on granulosa cells [60] Leptin decreases AMH gene expression in cumulus and granulosa cells [64] Adiponectin modulates ovarian steroidogenesis [63]
Smoking
Smoking is inversely correlated with AMH [37, 71, 72]
Polycyclic aromatic hydrocarbons cause oocyte destruction in mice [77, 78] Nicotine and/or its metabolites accumulate in granulosa cells and induce their apoptosis [79, 82] Cigarette smoke metabolites are associated with follicular oxidative stress [75]
Vitamin D deficiency
Decreased serum vitamin D levels are associated with lower serum AMH levels [65, 66]
Vitamin D-receptor complex binds the vitamin D response element on the AMH gene promoter resulting in upregulation of AMH gene expression [68]
JARID2: jumonji AT rich interactive domain 2; FMR1: fragile X mental retardation; BRCA1: breast cancer 1; AMH: antimllerian hormone.