Maternal Overnutrition and Fetal Programming: Long-Term Metabolic, Cognitive, and Epigenetic Consequences

Area of Science:

• Reproductive Medicine and Biology
• Developmental Biology
• Metabolic Health

Background:

• Maternal nutrition profoundly impacts fetal development and lifelong health.
• Both undernutrition and overnutrition can lead to adverse offspring health outcomes.
• Maternal overnutrition, gestational diabetes mellitus (GDM), and obesity are key concerns.

Purpose of the Study:

• To review the effects of maternal nutrition, especially overnutrition, on offspring health.
• To explore biochemical and epigenetic mechanisms of aberrant fetal programming.
• To discuss implications for preconception care and prevention of maternal overweight.

Main Methods:

• Review of current scientific literature and evidence.
• Analysis of biochemical and epigenetic pathways.
• Examination of studies on maternal obesity and GDM impacts.

Main Results:

• In utero excess nutrient exposure alters fetal metabolism and gene expression, increasing metabolic syndrome risk.
• Maternal obesity is linked to offspring cognitive dysfunction, immune issues, and cancer risk.
• GDM disrupts fetal hypothalamic development, affecting appetite regulation.

Conclusions:

• Epigenetic changes from maternal overnutrition may be transgenerationally inherited.
• Paternal obesity may also influence fetal metabolic programming.
• Preconception care and preventing maternal overweight are crucial for offspring health.