Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1982-12-18
pubmed:abstractText
Fetal tectal tissue was transplanted adjacent to the superior colliculus of neonatal rats. In mature recipient animals, ultrastructural studies provided evidence of host cortical synapses on cells within the transplants. To determine whether these synapses were functionally effective in driving transplant cells, tungsten in glass microelectrodes were used to record from single units in the transplants and the host cerebral cortex was electrically stimulated. Of the 214 tested units which were shown histologically to be within the transplants, 25 (11.7%) were orthodromically excited from host cortex at latencies of 15 ms or less (mean 7.3 ms). A further four transplant units were activated at relatively long latencies (40-300 ms). The presence of a functional host retinal input was also tested by electrically stimulating the host optic nerves. No transplant units were activated from these sites, apparently because very few electrode penetrations passed through the localized zones of optic axon distribution. The possible functional interrelationships between transplant and host are discussed.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0014-4819
pubmed:author
pubmed:issnType
Print
pubmed:volume
47
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
437-45
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Transplantation of tectal tissue in rats. III. Functional innervation of transplants by host afferents.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.