Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7 Suppl 2
pubmed:dateCreated
2006-10-10
pubmed:abstractText
In many parkinsonian syndromes, neuromelanin (NM)-containing dopaminergic neurons of the substantia nigra (SN) are selectively targeted by the noxius pathogens. Studies of the constitutional and functional features of human NM allow the formulation of a logical hypothesis on its role in parkinsonian syndromes. In the early stages, NM synthesis and iron-chelating properties may act as a powerful protective mechanism, delaying symptom appearance and/or slowing disease progression. Once these systems have been exhausted, the pathogenic mechanisms affecting cytoplasmic organelles other than NM destroy NM-harboring neurons, with consequent pouring out of NM granules. These in turn activate microglia, causing release of nitric oxide, interleukin-6 and tumor necrosis factor-alpha, thus becoming an important determinant of disease aggravation. Neuromelanin appears to be a suitable target for devising chemical agents that might modify the course of these diseases.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1526-632X
pubmed:author
pubmed:issnType
Electronic
pubmed:day
10
pubmed:volume
67
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
S8-11
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
A proposed dual role of neuromelanin in the pathogenesis of Parkinson's disease.
pubmed:affiliation
Institute of Biomedical Technologies-Italian Research Council, Segrate, Milano, Italy. luigi.zecca@itb.cnr.it
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't