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[Studying intestinal maturation in newborn infants by means of stable isotopes]
1Servicio de Neonatología, Hospital Infantil La Paz, Madrid.
Insights
Adequate nutrition is crucial for low birth weight infants. Stable isotope techniques can assess protein synthesis during minimal enteral feeding, improving outcomes for premature infants.
Area of Science:
- Neonatal nutrition and metabolism research.
- Application of stable isotope technology in pediatrics.
- Investigating protein turnover in preterm infants.
Context:
- Premature infants often require parenteral nutrition due to enteral feeding intolerance.
- Parenteral nutrition can lead to intestinal abnormalities.
- Minimal enteral feeding is a strategy to mitigate these adverse effects.
Purpose:
- To evaluate the utility of stable isotope technology for assessing protein metabolism in preterm infants.
- To investigate protein turnover using the amino acid Leucine.
- To explore the efficacy of minimal enteral feeding in improving nutritional support.
Summary:
- Stable isotope technology, specifically using Leucine tracers, can monitor amino acid uptake in splanchnic tissues.
- Continuous infusion and breath tests enable the estimation of protein synthesis rates.
- This method provides insights into the metabolic response to early nutritional interventions.
Impact:
- Enhancing our understanding of neonatal metabolism and nutritional requirements.
- Potentially improving the management of preterm infants' nutritional support.
- Guiding the development of evidence-based feeding strategies for vulnerable neonates.
Abstract:
Survival and subsequent quality of life in low birth weight infants are related to an adequate early nutrition. Premature children require parenteral nutrition support in the first days of life due to their intolerance enteral nutrition. In experimental studies, parenteral nutrition promotes intestinal abnormalities. Minimal enteral feeding has been proposed to minimise these adverse effects. Stable isotopes technology is an adequate tool to investigate metabolism in the perinatal period. The amino acid Leucine has been used by different authors for the study of protein turnover. The double tracer technology allows to follow the seizure of an amino acid administered enterally in splanchnic tissue. By continuous infusion and breath tests we can estimate protein synthesis in these children.