Linked Life Data

8393409

Source:http://linkedlifedata.com/resource/pubmed/id/8393409

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1993-8-31
pubmed:abstractText
Changes in excitatory amino acid (EAA) neurotransmission are thought to play an important role in the development of parkinsonian symptoms. We examined EAA receptor binding sites in substantia nigra, striatum, globus pallidus, and cortex at 2 weeks and 2 months after MPTP (1-methyl-4-phenyl-1,2,3,6-tetra-hydroxypyridine) injection in C57bl6 mice. At 2 weeks striatal dopamine content in MPTP-treated mice was reduced to 7% of control and N-methyl-D-aspartate (NMDA)-sensitive [3H]glutamate and [3H]alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) binding sites were decreased in substantia nigra to 57 and 76% of control, respectively. In globus pallidus only [3H]AMPA binding sites were decreased to 80% of control; no significant changes were found in striatum or cortex. [3H]Kainate binding sites remained unchanged. At 2 months striatal dopamine content was reduced to 31% and no changes in EAA binding sites could be detected in any of the structures examined. [3H]Mazindol binding to striatal monoamine-uptake sites was decreased to 17% of control at 2 weeks versus 37% at 2 months. Our data indicate that modulation of NMDA and AMPA binding sites in substantia nigra and globus pallidus, the major projection areas of the subthalamic nucleus, takes place only after severe impairment of the nigrostriatal system.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0014-4886
pubmed:author
pubmed:issnType
Print
pubmed:volume
121
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
284-7
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Glutamate receptor binding sites in MPTP-treated mice.
pubmed:affiliation
Neurology Service, Massachusetts General Hospital, Boston 02114.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't