Abstract:
:The first several months of life are a critical period for neuronal plasticity in the visual cortex, during which anatomical and physiological development depends upon visual experience. Rearing in darkness slows the time course of this critical period, such that at 5 weeks normal cats are more plastic than dark-reared cats, while at 20 weeks dark-reared cats are more plastic. This study reports the identification of a subset of mitochondrial genes that are regulated in this manner. Opponent patterns of bidirectional expression were found: several genes (ATPase 6, cytochrome b, NADH dehydrogenase subunits 4 and 2) showed elevation in normal cats at 5 weeks and in dark-reared cats at 20 weeks ("plasticity" genes); others (NADH dehydrogenase subunits 3 and 5) showed the opposite ("anti-plasticity" genes). These findings add a new dimension to the growing evidence that changes in mitochondrial gene expression are involved in the neuroplastic response.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Yang C,Silver B,Ellis SR,Mower GDdoi
10.1006/bbrc.2001.5706subject
Has Abstractpub_date
2001-10-12 00:00:00pages
1070-4issue
5eissn
0006-291Xissn
1090-2104pii
S0006-291X(01)95706-7journal_volume
287pub_type
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