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Folate compartments during gestational maturation
Insights
Nearly 70% of total folate in infants is bound. This bound folate increases with gestational maturity, explaining folate loss during pregnancy and highlighting the need for active folate transport for metabolism.
Area of Science:
- Neonatal nutrition
- Folate metabolism and transport
Background:
- Folate is essential for fetal development.
- Understanding folate's form and transport is crucial for neonatal health.
Purpose of the Study:
- To investigate the prevalence of bound folate in preterm and term infants.
- To correlate bound folate levels with gestational maturity and pregnancy.
Main Methods:
- Analysis of folate levels in 41 preterm and 53 term infants.
- Utilized radioligand data to study folate biology.
Main Results:
- Approximately 70% of total folate was found in the bound form across infant groups.
- Bound folate increased with gestational maturity, suggesting increased fetal demand.
- Observed a correlation between increased bound folate and folate loss during pregnancy.
Conclusions:
- Folate is predominantly bound in infants, with levels increasing as gestation progresses.
- Folate transport mechanisms are critical for meeting fetal demands and maintaining folate homeostasis.
- Effective folate metabolism likely relies on metabolically active transport systems.
Abstract:
Studies on 41 healthy preterm infants and 53 term infants revealed that almost 70% of the total folate is present in the bound form. Beyond the enonatal period the increase in bound folate with increasing gestational maturity reflects fetal demands placed on folate transport and affords an explanation for the loss of folate and corresponding increase in unsaturated binder during pregnancy. With the knowledge of folate biology gained from radioligand data, it is reasonable to postulate that effective folate metabolism depends upon a metabolically active transport mechanism.