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Trace elements of the micropremie.
1Lancashire Postgraduate School of Medicine and Health, University of Central Lancashire, Preston, United Kingdom.
Clinics in Perinatology
|February 26, 2000
Summary
This review examines trace element metabolism in premature infants, focusing on iron, zinc, copper, selenium, iodine, and manganese. It discusses how early delivery impacts these processes and suggests optimal nutrient requirements for these vulnerable infants.
Area of Science:
- Neonatal nutrition
- Trace element metabolism
- Developmental biology
Background:
- Micropremature infants face unique challenges in nutrient absorption and utilization due to immature physiological systems.
- Understanding the ontogeny of trace element metabolism is crucial for preventing deficiencies and optimizing growth in extremely preterm infants.
- Early delivery significantly disrupts the normal developmental trajectory of nutrient metabolism, necessitating specialized nutritional support.
Purpose of the Study:
- To review the current understanding of trace element (iron, zinc, copper, selenium, iodine, manganese) metabolism in micropremature infants.
- To explore the impact of premature birth on the developmental processes of these essential micronutrients.
- To provide insights into the recommended dietary allowances for these trace elements in extremely preterm neonates.
Main Methods:
- Literature review of existing studies on trace element metabolism in preterm infants.
- Analysis of the effects of gestational age and delivery timing on nutrient homeostasis.
- Synthesis of data on recommended intake levels for key trace minerals.
Main Results:
- Limited data exists on the specific ontogeny and metabolic pathways of key trace elements in micropremies.
- Early delivery profoundly affects the absorption, distribution, and excretion of essential trace minerals.
- Current recommendations for trace element supplementation in micropremature infants are based on extrapolated data and require further refinement.
Conclusions:
- Further research is essential to elucidate the precise mechanisms of trace element metabolism in extremely preterm infants.
- Optimizing trace element provision requires a nuanced approach considering the unique physiological adaptations and challenges of micropremature infants.
- Accurate assessment and management of trace element status are critical for improving neurodevelopmental outcomes and long-term health in this population.