Essential fatty acids and the brain: from infancy to aging

Area of Science:

• Neuroscience
• Biochemistry
• Nutrition

Background:

• Essential fatty acids (EFAs) are crucial dietary components impacting brain structure and function.
• EFAs influence neuronal membrane fluidity, neurotransmitter synthesis, and immune system molecules.
• Dietary intake is essential as the body cannot synthesize EFAs.

Purpose of the Study:

• To review the significant effects of essential fatty acids on brain structure and functions.
• To highlight the critical roles of EFAs throughout the lifespan, particularly during sensitive periods.
• To discuss factors influencing EFA bioavailability and their impact on brain and retinal functions.

Main Methods:

• Literature review of studies on essential fatty acids and brain health.
• Analysis of EFA's role in neuronal membrane dynamics and physiological functions.
• Examination of EFA involvement in neurotransmitter and immune system pathways.

Main Results:

• EFAs are integral to neuronal membrane fluidity and overall brain physiological functions.
• EFA deficiency leads to significant disturbances, especially during infancy (delayed development) and aging (accelerated deterioration).
• Blood-brain barrier integrity and myelination processes are key factors in EFA's impact on brain and retinal functions.

Conclusions:

• Adequate essential fatty acid supply is critical for optimal brain development and function across the lifespan.
• Impaired EFA bioavailability or deficiency poses risks to neurological health, particularly in infants and the elderly.
• Understanding EFA's role is vital for addressing brain health challenges related to nutrition and aging.