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- W2005024148 abstract "The purpose of this work was to evaluate the extent of free radical injury in newborns with hypoxic ischemic encephalopathy by measuring plasma levels of malondialdehyde and nitric oxide and to assess the blood-brain barrier permeability by measuring the cerebrospinal fluid albumin/plasma albumin ratio.This prospective observational study was conducted over a period of 2 years at Sir Sundarlal Hospital, Banaras Hindu University. The study population consisted of 43 term neonates with perinatal asphyxia who subsequently developed hypoxic ischemic encephalopathy. Twenty normal gestational age- and gender-matched healthy infants without any perinatal asphyxia served as control subjects. Peripheral venous blood samples were analyzed for malondialdehyde, total plasma nitrates/nitrites, and albumin levels between 12 and 24 hours of life. To assess the blood-brain barrier permeability, the cerebrospinal fluid albumin/plasma albumin ratio was measured. Correlation among the levels of malondialdehyde, nitrates/nitrites, and blood-brain barrier permeability was calculated. Data were analyzed by using SPSS 10 software.Plasma malondialdehyde and nitrate/nitrite levels were significantly higher in infants with hypoxic ischemic encephalopathy compared with control subjects. Although there was a progressive increment in plasma levels of malondialdehyde with increasing severity of hypoxic ischemic encephalopathy, the differences were not statistically significant. Plasma nitrate/nitrite levels were almost similar in all stages of hypoxic ischemic encephalopathy. Plasma albumin levels were comparable in infants with hypoxic ischemic encephalopathy and control subjects, whereas cerebrospinal fluid albumin levels and blood-brain barrier permeability were significantly higher in infants with hypoxic ischemic encephalopathy. Significant correlation was observed between plasma malondialdehyde and nitrate/nitrite levels with blood-brain barrier permeability.Increased plasma levels of malondialdehyde and nitrates/nitrites are found to be associated with hypoxic ischemic encephalopathy, indicating the possible role of free radical injury in its causation. Increased blood-brain barrier permeability may be another contributory factor to the progression of the disease." @default.
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- W2005024148 date "2008-09-01" @default.
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- W2005024148 title "Free Radical Injury and Blood-Brain Barrier Permeability in Hypoxic-Ischemic Encephalopathy" @default.
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- W2005024148 doi "https://doi.org/10.1542/peds.2008-0269" @default.
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