Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-3-20
pubmed:abstractText
Exposure to an enriched environment has proven to be beneficial in the recovery of function after brain lesions, but the underlying mechanisms remain only partly understood. One possibility is that environmental enrichment stimulates the reorganization of areas and fiber tracts that have been spared by the injury. Here we evaluate the effects of enriched environment on the sprouting of undamaged retinal afferents into the deafferented superior colliculus (SC) after a partial retinal lesion in adult rats. Anterograde tracing of retinal axons demonstrated a significant increase in fiber sprouting in the denervated SC of animals reared in enriched environment compared to animals reared in standard conditions. Environmental enrichment also promoted a substantial recovery of synaptic sites within the deafferented SC as shown by both synapsin I and vesicular glutamate transporter 2 immunostaining. These data provide evidence that environmental enrichment stimulates axonal plasticity and synaptic reorganization following brain injury.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1090-2430
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
216
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
515-9
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Environmental enrichment promotes fiber sprouting after deafferentation of the superior colliculus in the adult rat brain.
pubmed:affiliation
Istituto di Neuroscienze, Consiglio Nazionale delle Ricerche, via G. Moruzzi 1, 56100 Pisa, Italy. caleo@in.cnr.it
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't