scholarly journals White matter tract integrity and developmental outcome in newborn infants with hypoxic-ischemic encephalopathy treated with hypothermia

2014 ◽  
Vol 57 (5) ◽  
pp. 441-448 ◽  
Author(s):  
An N Massaro ◽  
Iordanis Evangelou ◽  
Ali Fatemi ◽  
Gilbert Vezina ◽  
Robert Mccarter ◽  
...  
Keyword(s):  
White Matter ◽  
Newborn Infants ◽  
Hypoxic Ischemic Encephalopathy ◽  
Developmental Outcome ◽  
White Matter Tract ◽  
Ischemic Encephalopathy

scholarly journals Protective Effects ofN-Acetyl-L-Cysteine in Human Oligodendrocyte Progenitor Cells and Restoration of Motor Function in Neonatal Rats with Hypoxic-Ischemic Encephalopathy

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Dongsun Park ◽  
Kyungha Shin ◽  
Ehn-Kyoung Choi ◽  
Youngjin Choi ◽  
Ja-Young Jang ◽  
...  
Keyword(s):  
White Matter ◽  
Progenitor Cells ◽  
Hypoxic Ischemic Encephalopathy ◽  
Oligodendrocyte Progenitor Cells ◽  
Protective Effects ◽  
Neonatal Rats ◽  
Motor Functions ◽  
Ischemic Encephalopathy

Objective. Since oligodendrocyte progenitor cells (OPCs) are the target cells of neonatal hypoxic-ischemic encephalopathy (HIE), the present study was aimed at investigating the protective effects ofN-acetyl-L-cysteine (NAC), a well-known antioxidant and precursor of glutathione, in OPCs as well as in neonatal rats.Methods. Inin vitrostudy, protective effects of NAC on KCN cytotoxicity in F3.Olig2 OPCs were investigated via MTT assay and apoptotic signal analysis. Inin vivostudy, NAC was administered to rats with HIE induced by hypoxia-ischemia surgery at postnatal day 7, and their motor functions and white matter demyelination were analyzed.Results. NAC decreased KCN cytotoxicity in F3.Olig2 cells and especially suppressed apoptosis by regulating Bcl2 and p-ERK. Administration of NAC recovered motor functions such as the using ratio of forelimb contralateral to the injured brain, locomotor activity, and rotarod performance of neonatal HIE animals. It was also confirmed that NAC attenuated demyelination in the corpus callosum, a white matter region vulnerable to HIE.Conclusion. The results indicate that NAC exerts neuroprotective effectsin vitroandin vivoby preserving OPCs, via regulation of antiapoptotic signaling, and that F3.Olig2 human OPCs could be a good tool for screening of candidates for demyelinating diseases.

scholarly journals Correlation Between White Matter Injury Identified by Neonatal Diffusion Tensor Imaging and Neurodevelopmental Outcomes Following Term Neonatal Asphyxia and Therapeutic Hypothermia: An Exploratory Pilot Study

2019 ◽  
Vol 34 (10) ◽  
pp. 556-566 ◽  
Author(s):  
Gwendolyn J. Gerner ◽  
Eric I. Newman ◽  
V. Joanna Burton ◽  
Brenton Roman ◽  
Elizabeth A. Cristofalo ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Pilot Study ◽  
Therapeutic Hypothermia ◽  
Diffusion Tensor ◽  
White Matter Injury ◽  
Hypoxic Ischemic Encephalopathy ◽  
Group Differences ◽  
Neurodevelopmental Outcomes ◽  
Ischemic Encephalopathy

Aim: Hypoxic-ischemic encephalopathy is associated with damage to deep gray matter; however, white matter involvement has become recognized. This study explored differences between patients and clinical controls on diffusion tensor imaging, and relationships between diffusion tensor imaging and neurodevelopmental outcomes. Method: Diffusion tensor imaging was obtained for 31 neonates after hypoxic-ischemic encephalopathy treated with therapeutic hypothermia and 10 clinical controls. A subgroup of patients with hypoxic-ischemic encephalopathy (n = 14) had neurodevelopmental outcomes correlated with diffusion tensor imaging scalars. Results: Group differences in diffusion tensor imaging scalars were observed in the putamen, anterior and posterior centrum semiovale, and the splenium of the corpus callosum. Differences in these regions of interest were correlated with neurodevelopmental outcomes between ages 20 and 32 months. Conclusion: Therapeutic hypothermia may not be a complete intervention for hypoxic-ischemic encephalopathy, as neonatal white matter changes may continue to be evident, but further research is warranted. Patterns of white matter change on neonatal diffusion tensor imaging correlated with neurodevelopmental outcomes in this exploratory pilot study.

Role of Carbon Monoxide and Nitric Oxide in Newborn Infants With Postasphyxial Hypoxic-Ischemic Encephalopathy

PEDIATRICS ◽  
2000 ◽  
Vol 106 (6) ◽  
pp. 1447-1451 ◽  
Author(s):  
Y. Shi ◽  
F. Pan ◽  
H. Li ◽  
J. Pan ◽  
S. Qin ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Carbon Monoxide ◽  
Newborn Infants ◽  
Hypoxic Ischemic Encephalopathy ◽  
Ischemic Encephalopathy
Sign in / Sign up

Export Citation Format

Share Document