Choline and Betaine Levels in Plasma Mirror Choline Intake in Very Preterm Infants

Area of Science:

• Nutritional Science
• Neonatal Development
• Biochemistry

Background:

• Choline is vital for cell membranes and methyl transfers, crucial for fetal development.
• Preterm infants, especially very low birth weight infants (VLBWI), have higher choline needs.
• Breast milk choline content is lower after preterm delivery, and current formulas/fortifiers are insufficient.

Purpose of the Study:

• To investigate if increased enteral choline intake elevates plasma choline, betaine, and phosphatidylcholine in VLBWI.
• To assess the relationship between choline intake and plasma concentrations in this population.

Main Methods:

• Secondary analysis of a randomized controlled trial on VLBWI growth.
• Measurement of total choline in breast milk from 33 mothers.
• Correlation of enteral choline intake (from breast milk, formula, fortifier) with plasma concentrations.

Main Results:

• Plasma choline and betaine levels in VLBWI showed a direct correlation with enteral choline intake.
• Despite correlation, administered choline was insufficient to reach physiological (fetus-like) plasma concentrations.

Conclusions:

• Optimizing maternal choline status and milk/fortifier choline content is recommended.
• This may help increase plasma choline, address the choline deficit, and enhance VLBWI growth and development.