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Decreased mRNA expression of CCL5 [RANTES] in Alzheimer's disease blood samples.
MedLine Citation:
PMID:  21942811     Owner:  NLM     Status:  Publisher    
Abstract Background: A recent study reported that an 18-analyte multiplexed plasma panel of signaling proteins differentiated Alzheimer's disease (AD) from controls. This study measured mRNA expression for nine of these promising bio-markers in 23 AD patients and 23 age- and sex-matched controls. Methods: Total RNA was isolated from PaxGene RNA tubes. Relative mRNA expression levels of CCL5 [RANTES], CSF1, ICAM1, IGFBP6, IL1A, IL3, IL8, PDGFB and TNF were determined by Q-RT-PCR, with GAPDH as housekeeping gene. Results: A panel of five markers (CCL5, CSF1, ICAM1, IL8, TNF) with detectable expression levels in all individuals differed between AD patients and controls (p interaction <0.10). Especially, the relative expression level of CCL5 was lower in AD patients than in controls (p<0.005). Across groups, levels of both CCL5 and TNF were correlated to CSF levels of τ (r=0.39, r=0.32), pτ-181 (r=0.38, r=0.33), and MMSE (r=-0.31, r=-0.33, all p<0.05). Conclusions: The measured panel, and especially CCL5, could aid in the differentiation of AD from controls.
Maartje I Kester; Wiesje M van der Flier; Allerdien Visser; Marinus A Blankenstein; Philip Scheltens; Cees B Oudejans
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-9-23
Journal Detail:
Title:  Clinical chemistry and laboratory medicine : CCLM / FESCC     Volume:  -     ISSN:  1434-6621     ISO Abbreviation:  -     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-9-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9806306     Medline TA:  Clin Chem Lab Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Alzheimer Center and Department of Neurology, VU University Medical Center, Amsterdam, The Netherlands.
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