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Life sciences · Journal article
Frontiers in Endocrinology · October 26, 2026
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Introduction The placenta is increasingly recognized as a dynamic regulatory organ that translates both maternal and paternal physiological and pathological states into developmental signals into developmental signals shaping offspring health across the lifespan. In the context of maternal metabolic and obstetric complications, placental function extends far beyond the regulation of fetal growth, influencing key aspects of development including endocrine set points, nutrient allocation, inflammatory responses, vascular adaptation, and molecular programming across fetal organs. Results This review examines how maternal conditions —such as obesity, gestational diabetes mellitus (GDM), hypertensive disorders of pregnancy, undernutrition, micronutrient imbalance, and maternal inflammatory stress —induce structural, endocrine, vascular, metabolic, and epigenetic alterations in the placenta. We further explore how these changes disrupt critical molecular pathways, including nutrient sensing and transport, oxidative stress responses, mitochondrial function, angiogenesis and glucocorticoid signaling, immune regulation, and gene expression. A central focus is the convergence of placental mechanisms across diverse maternal disorders, leading to shared offspring phenotypes such as insulin resistance, increased adiposity, dyslipidemia, impaired glucose regulation, altered appetite control, and elevated risk of cardiometabolic disease later in life. Conclusion Additionally, we address sex-specific placental adaptations, fetal tissue vulnerability, and the translational potential of placental biomarkers and omics-based approaches supported by mechanistic experimental models. By positioning the placenta as the primary biological interface linking maternal complications to offspring susceptibility to endocrine and complex metabolic diseases, this review provides an integrated framework for understanding developmental programming in metabolic health.