Objectives: 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.
Methods: 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.
Results: 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.
Conclusions: 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.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1542/peds.2008-0269 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Physiological and behavioral stability of newborns on therapeutic hypothermia for hypoxic-ischemic encephalopathy during parental holding.
Pediatr Res
January 2025
Department of Neonatal Medicine, University Hospital of Strasbourg, University of Strasbourg, Strasbourg, France.
Background: Physical separation contributes to parental trauma and poor bonding in the context of therapeutic hypothermia (TH) for hypoxic-ischemic encephalopathy (HIE). Parental holding (PH) may improve parents' experience. We aim to determine the physiological and behavioral stability of the newborn held by the parents during TH.
View Article and Find Full Text PDFMaternal and perinatal outcomes after implementation of a more active management in late- and postterm pregnancies in Sweden: A population-based cohort study.
PLoS Med
January 2025
Region Västra Götaland, Sahlgrenska University Hospital, Department of Obstetrics and Gynecology, Gothenburg, Sweden.
Background: The risk of perinatal death and severe neonatal morbidity increases gradually after 41 weeks of pregnancy. We evaluated maternal and perinatal outcomes after a national shift from expectancy and induction at 42+0 weeks to a more active management of late-term pregnancies in Sweden offering induction from 41+0 weeks or an individual plan aiming at birth or active labour no later than 42+0 weeks.
Methods And Findings: Women with a singleton pregnancy lasting 41+0 weeks or more with a fetus in cephalic presentation (N = 150,370) were included in a nationwide, register-based cohort study.
Prognostic Value of Signal Abnormalities on Brain MRI in Post-Anoxic Super-Refractory Status Epilepticus: A Single-Center Retrospective Study.
Eur J Neurol
January 2025
Epilepsy Center, Department of Neurology, Fondazione IRCCS San Gerardo Dei Tintori, Monza, Italy.
Background: Epileptiform activity, including status epilepticus (SE), occurs in up to one-third of comatose survivors of cardiac arrest and may predict poor outcome. The relationship between SE and hypoxic-ischemic brain injury (HIBI) is not established.
Methods: This is a single-center retrospective study on consecutive patients with post-anoxic super-refractory SE.
First year of in-house forensic neuropathology consultations in Helsinki, Finland.
Int J Legal Med
January 2025
Forensic Medicine Unit, Finnish Institute for Health and Welfare, P.O. Box 30, Helsinki, FIN-00271, Finland.
In July 2023, an in-house forensic neuropathology consultation pilot was established at the Helsinki office of the Forensic Medicine Unit, Finnish Institute for Health and Welfare. This offered an alternative to the previous practice of full outsourcing to a hospital neuropathology department. This paper aims to introduce the first year experiences of the pilot.
View Article and Find Full Text PDFAdult-Onset Myoclonus in a Large Urban Inpatient Setting: A Retrospective Cohort Study.
Tremor Other Hyperkinet Mov (N Y)
January 2025
Department of Neurology, New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY, US.
Background: Myoclonus is a hyperkinetic movement with various attributable etiologies, semiologies, and treatment outcomes. To our knowledge, few studies investigated adult-onset myoclonus in an inpatient setting.
Methods: We retrospectively reviewed charts of adult inpatients with myoclonus at New York Presbyterian Brooklyn Methodist Hospital between 2011 and 2021.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!