Vitamin A status of preterm infants: the influence of feeding and vitamin supplements
| Autor: | E P James, Calvin Woodruff, C B Latham, John E. Hewett |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Vitamin
Male medicine.medical_specialty medicine.medical_treatment Medicine (miscellaneous) Physiology chemistry.chemical_compound Vitamin supplement Internal medicine medicine Humans Prealbumin Vitamin E Tocopherol Infant Nutritional Physiological Phenomena Vitamin A Nutrition and Dietetics biology Albumin Retinol Infant Newborn Infant Low Birth Weight Retinol-Binding Proteins Transthyretin Retinol binding protein Zinc Endocrinology chemistry biology.protein Female Retinol-Binding Proteins Plasma Infant Premature |
| Zdroj: | The American journal of clinical nutrition. 44(3) |
| ISSN: | 0002-9165 |
| Popis: | Consecutive weekly determinations of plasma retinol, alpha-tocopherol, retinol-binding protein, prealbumin, and zinc were performed on a group of 58 infants weighing less than 2000 g at birth in an intensive-care nursery. Data were classified by the feeding regimen of the preceding week: parenteral, premature formula, or own mother's milk. Mean plasma-retinol values were less than 20 mcg/dl, the lower limit of normal for adults, with the highest values in the formula-fed group. Retinol-binding protein and prealbumin values were lowest in the parenterally-fed group. Alpha-tocopherol concentrations were consistently maintained at levels higher than 500 mcg/dl only in infants fed their own mother's milk. Mean zinc concentrations above 70 mcg/dl, the lower limit of normal for adults, occurred only in parenterally fed infants. Doubling the recommended vitamin supplement in formula-fed infants did not produce a significant increase in plasma retinol or tocopherol. |
| Databáze: | OpenAIRE |
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