Fetal growth and consequences for later life

Area of Science:

• Perinatology
• Endocrinology
• Vascular Biology

Background:

• Abnormal intrauterine environments are increasingly recognized for their long-term health implications.
• Conditions like intrauterine growth retardation (IUGR) and macrosomia have distinct fetal metabolic profiles.
• These fetal alterations may predispose individuals to chronic diseases later in life.

Purpose of the Study:

• To explore the long-term consequences of intrauterine growth retardation and macrosomia on adult health.
• To investigate the underlying mechanisms linking fetal environment to later-life metabolic and vascular diseases.
• To assess the potential of interventions, such as normalizing the intrauterine milieu, in preventing adverse outcomes.

Main Methods:

• Review of experimental studies investigating the working mechanisms of intrauterine influences.
• Analysis of human epidemiological data correlating intrauterine conditions with later-life diseases.
• Exploration of potential therapeutic strategies, including antioxidant use.

Main Results:

• Intrauterine growth retardation is associated with reduced fetal insulin secretion, insulin resistance, vascular diseases, and preeclampsia in later life.
• Macrosomia is linked to increased fetal insulin secretion, B-cell exhaustion, reduced adult insulin secretion, gestational diabetes, and breast carcinoma.
• Experimental studies support the link between fetal environment and adult disease, with potential for prevention.

Conclusions:

• The intrauterine environment significantly influences long-term health, predisposing to insulin resistance and vascular pathologies.
• Normalization of a diabetic intrauterine milieu shows promise in preventing later-life health consequences.
• Further research into interventions like antioxidants may mitigate vascular changes.