Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2006-8-15
pubmed:abstractText
Parkinson's disease (PD) is characterized by a triad of symptoms (tremor, rigidity, and bradykinesia). Aside from this, emotional deficits are known to be associated with PD. A key structure of emotional processing is the amygdala. Emotional deficits seen in PD might be due to alterations in the catecholaminergic innervation of this limbic structure. We therefore examined whether 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) applied to C57/BL6 mice (an animal model of PD) affects the density of tyrosine hydroxylase (TH) immunoreactive fibers in the amygdala as it does in the striatum. MPTP treatment caused a prominent reduction in dopamine levels (about -70%) in the striatum (determined by high-performance liquid chromatography and electrochemical detection), accompanied by massive losses of TH-positive fibers in the striatum (-48.3%). Moreover, MPTP treatment caused prominent reductions of TH-positive fiber densities in the basolateral, lateral and central nucleus of the amygdala (about -20%). These results may provide the morphological basis for behavioral studies analyzing altered emotional responses in animal models of PD.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1660-2854
pubmed:author
pubmed:issnType
Print
pubmed:volume
2
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
44-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
MPTP treatment impairs tyrosine hydroxylase immunopositive fibers not only in the striatum, but also in the amygdala.
pubmed:affiliation
Department of Neuroanatomy, Interdisciplinary Center for Neurosciences, IZN, University of Heidelberg, Heidelberg, Germany. oliver.vonbohlen@arcor.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't