Supplementation with fish oil and coconut fat prevents prenatal stress-induced changes in early postnatal development

Area of Science:

• Neuroscience
• Developmental Biology
• Nutritional Science

Background:

• Central nervous system development is influenced by prenatal and postnatal factors.
• Prenatal stress (PNS) is linked to impaired offspring development.
• Maternal nutrition during pregnancy and lactation impacts fetal and postnatal growth.

Purpose of the Study:

• To assess the impact of prenatal stress (PNS) on rat offspring development.
• To investigate the effects of maternal diets (regular, coconut fat, fish oil) on offspring exposed to PNS.
• To determine if dietary interventions can prevent or mitigate PNS-induced developmental alterations.

Main Methods:

• Rat dams were exposed to PNS (restraint and bright lights) during late pregnancy (days 14-20).
• Mothers were fed regular, coconut fat-supplemented, or fish oil-supplemented diets during pregnancy and lactation.
• Offspring development, including birth weight, weight at 21 days, and locomotor activity at 13 days, was assessed.

Main Results:

• PNS resulted in lower birth weight in male and female offspring compared to controls.
• Fish oil and coconut fat diets normalized birth weight by 21 days.
• PNS and coconut fat diet increased locomotor activity; fish oil prevented this in females.

Conclusions:

• Postnatal development from birth to weaning is significantly influenced by prenatal stress and maternal diet.
• Coconut fat and fish oil supplementation show potential in preventing or ameliorating PNS-induced developmental deficits.
• Dietary interventions represent a promising strategy to counteract the negative effects of prenatal stress on offspring development.