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[Levels of L-carnitine in the Venezuelan infant population]
Insights
This study measured L-carnitine levels in maternal blood serum and amniotic fluid, finding no significant differences across gestational ages. However, newborn serum L-carnitine levels were notably higher than in other age groups.
Area of Science:
- Biochemistry
- Human Physiology
Context:
- L-carnitine is essential for energy metabolism.
- Understanding L-carnitine levels across different life stages is crucial for assessing nutritional status and metabolic health.
Purpose:
- To determine L-carnitine concentrations in maternal blood serum and amniotic fluid across various gestational ages.
- To analyze L-carnitine serum levels in newborns, infants, and children.
- To compare these levels with existing literature, particularly Anglo-Saxon data.
Summary:
- L-carnitine levels in maternal blood serum (22.6 ± 5.1 nmol/mL) and amniotic fluid (25.3 ± 9.4 nmol/mL) showed no significant variation with gestational age.
- Serum L-carnitine was highest in newborns aged 1-30 days (43.1 ± 7.4 nmol/mL) and remained elevated in children aged 1 month-18 years (34.3 ± 6.7 nmol/mL).
- Observed variations suggest population-specific characteristics that warrant further investigation.
Impact:
- Provides reference ranges for L-carnitine in a specific population, aiding clinical interpretation.
- Highlights potential differences in L-carnitine metabolism or status compared to other populations.
- Suggests the need for further research into age-specific L-carnitine requirements and physiological variations.
Abstract:
The L-carnitine blood serum and amniotic fluid levels were measured in 133 samples obtained from clinically healthy patients: 39 pregnant women with a fetal gestational age ranging from 14 to 40 weeks, 13 newborn children less than a day old, 19 newborn children between the ages of 1 and 30 days, 8 breast-feed babies and 19 children over two years of age. No significant statistical differences were seen in the maternal blood serum and amniotic fluid samples for the different gestational ages considered in the study. The average values were found to be 22.6 +/- 5.1 nmol/mL for maternal blood serum and 25.3 +/- 9.4 nmol/mL for amniotic fluid. The blood serum levels were found to be greater in the group between the ages of 1 to 30 days, reaching levels of 43.1 +/- 7.4 nmol/mL. In the group aged 1 month-18 years, the serum levels were on the average 34.3 +/- 6.7 nmol/mL. The variations found among these groups reflect characteristics specific of our population. These values should be further researched since they differ from those values reported by the Anglo-Saxons. L-carnitine concentration; blood serum level; amniotic fluid level.