Synthetic glucocorticoids: antenatal administration and long-term implications

Area of Science:

• Endocrinology
• Developmental Biology
• Perinatal Medicine

Background:

• Intrauterine development significantly influences adult disease predisposition, with birth weight as a key indicator.
• Elevated fetal exposure to glucocorticoids, both endogenous and synthetic, is linked to adult-onset diseases.
• Synthetic glucocorticoids are administered antenatally to improve preterm infant outcomes but may have long-term consequences.

Purpose of the Study:

• To provide background on antenatal synthetic corticosteroid use.
• To summarize recent clinical and animal studies on the effects of prenatal glucocorticoid exposure.
• To highlight research challenges in understanding glucocorticoid programming and enhancing drug safety.

Main Methods:

• Review of clinical and animal-based studies on prenatal glucocorticoid exposure.
• Analysis of the relationship between intrauterine development, birth weight, and adult disease.
• Examination of endocrine axis changes associated with fetal glucocorticoid exposure.

Main Results:

• Evidence suggests detrimental effects of synthetic glucocorticoids on human birth outcomes, cognition, and behavior.
• Animal studies demonstrate permanent alterations in fetal development and placental function following prenatal synthetic glucocorticoid exposure.
• Long-term human follow-up is needed to confirm the permanence of these developmental alterations.

Conclusions:

• Prenatal synthetic glucocorticoid exposure may have lasting negative impacts on development and long-term health.
• Further research is crucial to elucidate the mechanisms of fetal programming by glucocorticoids.
• Enhancing the safety and efficacy of antenatal corticosteroids is a key research priority.