OBJECTIVE: The aim of this study was to evaluate the extent of lipid peroxidation and the response of the enzymatic and non-enzymatic antioxidant defence system in erythrocytes from full-term and premature infants at birth, after 3 and after 72 h of life. STUDY DESIGN: Twenty infants were selected and divided in two groups according to their gestational age. Blood samples were taken at birth, at 3 and at 72 h of life, erythrocytes were isolated and the following parameters were measured: fatty-acid profile, coenzyme Q, alpha-tocopherol, hydroperoxides and the activity of the antioxidant enzymes catalase, superoxide dismutase (SOD) and cytosolic glutathione peroxidase (cGPx). RESULTS: For the three studied periods, several differences between full-term and premature infants were found. Premature children showed a higher concentration of hydroperoxides, a lower level of alpha-tocopherol and lower SOD and cGPx activity (except for cGPx at birth). Moreover, n-3 polyunsaturated fatty-acids percentages (essential for good neonatal development) were higher in full term children throughout all the study. CONCLUSION: Results suggest a strong imbalance between oxidants and antioxidants in premature infants during their first 72 h of life, a situation which could lead to several pathologies. Therefore, further research is needed, including possible nutritional intervention (with antioxidant therapy, supplementation of essential fatty acids and other dietary constituents) before and after birth.
OBJECTIVE: The aim of this study was to evaluate the extent of lipid peroxidation and the response of the enzymatic and non-enzymatic antioxidant defence system in erythrocytes from full-term and premature infants at birth, after 3 and after 72 h of life. STUDY DESIGN: Twenty infants were selected and divided in two groups according to their gestational age. Blood samples were taken at birth, at 3 and at 72 h of life, erythrocytes were isolated and the following parameters were measured: fatty-acid profile, coenzyme Q, alpha-tocopherol, hydroperoxides and the activity of the antioxidant enzymes catalase, superoxide dismutase (SOD) and cytosolic glutathione peroxidase (cGPx). RESULTS: For the three studied periods, several differences between full-term and premature infants were found. Premature children showed a higher concentration of hydroperoxides, a lower level of alpha-tocopherol and lower SOD and cGPx activity (except for cGPx at birth). Moreover, n-3 polyunsaturated fatty-acids percentages (essential for good neonatal development) were higher in full term children throughout all the study. CONCLUSION: Results suggest a strong imbalance between oxidants and antioxidants in premature infants during their first 72 h of life, a situation which could lead to several pathologies. Therefore, further research is needed, including possible nutritional intervention (with antioxidant therapy, supplementation of essential fatty acids and other dietary constituents) before and after birth.
Authors: Daniel J Raiten; Fayrouz A Sakr Ashour; A Catharine Ross; Simin N Meydani; Harry D Dawson; Charles B Stephensen; Bernard J Brabin; Parminder S Suchdev; Ben van Ommen Journal: J Nutr Date: 2015-04-01 Impact factor: 4.798
Authors: Patrick Tso; Mustafa Vurma; Chih-Wei Ko; Dana Lee; Stephen DeMichele Journal: Am J Physiol Gastrointest Liver Physiol Date: 2018-02-22 Impact factor: 4.052
Authors: Javier Díaz-Castro; Jesus Florido; Naroa Kajarabille; Sonia Prados; Catalina de Paco; Olga Ocon; Mario Pulido-Moran; Julio J Ochoa Journal: Oxid Med Cell Longev Date: 2015-02-01 Impact factor: 6.543
Authors: Asmaa N Moustafa; Mahmoud H Ibrahim; Suzan Omar Mousa; Ebtesam E Hassan; Hashem F Mohamed; Hend M Moness Journal: Lipids Health Dis Date: 2017-11-09 Impact factor: 3.876