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Effect of Hyaluronic Acid 35 kDa on an In Vitro Model of Preterm Small Intestinal Injury and Healing Using Enteroid-Derived Monolayers
Published on: July 28, 2022
[Is it justifiable to administrate vitamin A, E and D for 6 months in the premature infants?]
Insights
Preterm infants have low vitamin A and E levels. Increasing vitamin A to 5000 IU/day for the first month, then 3000 IU for 5 months, is recommended for optimal nutritional status.
Area of Science:
- Neonatal nutrition
- Pediatric biochemistry
- Vitamin metabolism
Context:
- Limited data exists on vitamin A and E status in preterm infants.
- Preterm infants (32-34 weeks gestation) often have suboptimal nutrient levels at birth.
- Understanding vitamin supplementation effects is crucial for infant development.
Purpose:
- To assess vitamin A, E, D, and retinol-binding protein (RBP) plasma concentrations in preterm infants.
- To evaluate the impact of oral vitamin supplementation on these levels over 6 months.
- To determine optimal vitamin A, E, and D dosages for preterm infants.
Summary:
- At birth, preterm infants showed low plasma concentrations of vitamins A, E, D, and RBP.
- Supplementation increased vitamin levels, but vitamin A did not reach normal values in term infants within 6 months.
- Vitamin D levels normalized by 6 months, while vitamin E sufficiency was noted with the study dose.
Impact:
- Suggests increasing vitamin A supplementation to 5000 IU/day for the first month, followed by 3000 IU/day for 5 months.
- Recommends continuing current vitamin E and D doses for 6 months.
- Highlights the need for adjusted vitamin A supplementation protocols in preterm infants for improved long-term nutritional status.
Unlabelled:
Information on the vitamin A and E nutritional status in preterm infants is scarce.
Population And Methods:
In the present prospective and longitudinal study, we measured the plasma concentrations of vitamins A, E, D and of retinol binding protein (RBP) in preterm infants (32-34 weeks of gestation) at birth, and verified whether oral supplementation with these 3 vitamins for 1, 3 and 6 months affected their plasma concentrations. The 17 consecutively recruited premature infants received daily 3000 IU of vitamin A, 5 mg of vitamin E and 1000 IU of vitamin D.
Results:
At birth, premature infants exhibited a low plasma concentrations of vitamin A (0.66 [0.41-0.96]) micromol/l, vitamin E (8.1 [4.2-16.9] micromol/l), RBP (0.45 [0.22-0.71] micromol/l) and 25 hydroxyvitamine D (25 OHD) (20 [20-40] nmol/l). Plasma vitamin A, E , D and RBP concentrations increased with time, but vitamin A at 1, 3 and 6 months did not attain values considered normal in term infants or adolescents. At 6 months, the plasma 25 OHD was at 92 (71-116) nmol/l, a concentration considered normal and non-toxic.
Conclusion:
We recommend to increase oral administration of vitamin A to 5000 IU/day, at least for the first month of life and, thereafter to administer 3000 IU for 5 months. As for vitamin E and vitamin D, the doses used in this study are sufficient but should be administered for 6 months.
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