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Neuregulin-1 reduces ischemia-induced brain damage in rats
- Source :
-
Neurobiology of Aging . Aug2004, Vol. 25 Issue 7, p935-944. 10p. - Publication Year :
- 2004
-
Abstract
- Neuregulin-1 (NRG-1) is expressed throughout the immature and adult central nervous system and it has been demonstrated to influence the migration of a variety of cell types in developing brain. Elevated levels of NRG-1 transcript are found in the adult brain after injury, leading to the suggestion that NRG-1 is involved in the physiological response to neuronal injury. Here, we report our findings that rats pre-treated with NRG-1 protein, undergoing cerebral ischemia 30 min later, had increased motor performance and less cerebral infarction than untreated rats. In the cortex of NRG-1 treated rats, ischemia induced a decrease in caspase-3 immunoreactivity and a reduction in the density of cells positive for terminal deoxynucleotidyl transferase-mediated dUTP-biotin in situ nick end-labeling. Improvement in behavioral assays was also found in animals treated with NRG-1. Pre-treatment with NRG-1 did not alter cerebral blood flow or other physiological parameters. NRG-1 reduced ischemia/reperfusion injury, indicating that it may act as an endogenous neuroprotective factor against stroke. Therefore, NRG-1 may represent a target for the development of new treatments for stroke. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 01974580
- Volume :
- 25
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Neurobiology of Aging
- Publication Type :
- Academic Journal
- Accession number :
- 13471504
- Full Text :
- https://doi.org/10.1016/j.neurobiolaging.2003.10.012