Shows that paternal caffeine exposure impacts offspring stress vulnerability, suggesting a potential intervention with folic acid supplementation.
). Chemogenetic activation of this circuit rescues HPA axis hyperresponsivity and affective phenotypes. Clinically, sperm IG-DMR hypomethylation correlates with elevated plasma cortisol in prospective fathers. Importantly, paternal folic acid supplementation prevents these epigenetic alterations and restores offspring stress homeostasis. Our study delineates an intergenerational mechanism and identifies a potentially translatable prenatal intervention strategy.
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Lu et al. (2026) studied this question.
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