Abstract:
BACKGROUND AND PURPOSE:This work was undertaken to determine to what degree long-term neurofunctional outcome of neonatal hypoxic-ischemic (HI) brain injury in mice correlates with anatomical extent of cerebral damage assessed by magnetic resonance imaging (MRI) and histopathology. METHODS:On postnatal day 7, mice were subjected to HI. At 7 to 9 weeks after HI neurofunctional outcome was assessed by water-maze, rota-rod, and open-field test performance, followed by cerebral MRI and histopathology evaluation. RESULTS:At 10 weeks after HI, MRI revealed ipsilateral brain atrophy alone or with porencephalic cyst formation and contralateral ventriculomegaly. Adult HI-affected mice, especially those that developed a porencephalic cyst, demonstrated significant neurofunctional deficit compared with age-matched naïve mice. HI-affected mice with ipsilateral cerebral atrophy but without porencephaly demonstrated no or an intermediate level of neurofunctional deficit. Neurobehavioral assessment of mice subjected to HI insult revealed a strong correlation between degree of brain injury and functional neurohandicap. CONCLUSIONS:This is the first study to demonstrate that long-term neurofunctional outcome in mice after a neonatal HI correlates tightly with anatomical pattern/extent of cerebral damage, defined by MRI and histopathology.
journal_name
Strokejournal_title
Strokeauthors
Ten VS,Wu EX,Tang H,Bradley-Moore M,Fedarau MV,Ratner VI,Stark RI,Gingrich JA,Pinsky DJdoi
10.1161/01.STR.0000137768.25203.dfsubject
Has Abstractpub_date
2004-09-01 00:00:00pages
2183-8issue
9eissn
0039-2499issn
1524-4628pii
01.STR.0000137768.25203.dfjournal_volume
35pub_type
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