Linked Life Data

18694837

Source:http://linkedlifedata.com/resource/pubmed/id/18694837

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2008-10-20
pubmed:abstractText
Recently developed positron emission tomography (PET) tracers, such as PIB and FDDNP, help to visualize amyloid plaques and neurofibrillary tangles in living subjects. FDDNP binds to both amyloid plaques and tangles, whereas PIB selectively labels amyloid plaques. Therefore, it will be interesting to see a direct comparison of the regional binding of the two radiotracers for plaques (PIB) and plaques and tangles (FDDNP) using multitracer PET imaging for both PIB and FDDNP in the same subjects with and without Alzheimer's disease. Here we report that multitracer PET images of PIB and FDDNP in the same Alzheimer subjects show negligible PIB but strong FDDNP binding in the medial temporal cortex (hippocampus, amygdala, and parahippocampal gyrus), whereas there are significant quantities of both PIB and FDDNP binding in neocortical areas. These results suggest that tangles rather than amyloid plaques are the dominant pathology in the medial temporal cortex of living Alzheimer patients. In nondemented elderly normal subjects, PIB binding shows a significant increase in the posterior cingulate cortex compared with other brain regions, whereas in the same normal subjects we found significant FDDNP binding in the medial temporal cortex. Interestingly, the medial temporal FDDNP uptake values in normal elderly subjects were inversely correlated with long delay recall scores in the California Verbal Learning Test, a measure of episodic memory performance. We conclude that multitracer PET imaging of amyloid plaques and tangles using FDDNP and PIB in both nondemented and demented subjects provides important insight into these complicated pathological processes in living subjects.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1095-9572
pubmed:author
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
236-44
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Multitracer PET imaging of amyloid plaques and neurofibrillary tangles in Alzheimer's disease.
pubmed:affiliation
Neuroscience Research Institute, Gachon University of Medicine and Science, Namdong-Gu, Incheon, Republic of Korea. jhshin@gachon.ac.kr
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't