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  • Hindawi Limited  (2)
  • Zetterberg, Henrik  (2)
  • 1
    In: International Journal of Alzheimer's Disease, Hindawi Limited, Vol. 2011 ( 2011), p. 1-6
    Abstract: We measured cerebrospinal fluid (CSF) levels of the soluble isoforms of amyloid precursor protein (APP; sAPP α sAPP β ) and other CSF biomarkers in 107 patients with Alzheimer's disease (AD), dementia with Lewy body dementia (DLB), Parkinson's disease dementia (PDD), and normal controls (NC) using commercial kits. DLB and PDD were combined in a Lewy body dementia group (LBD). No differences were observed in sAPP α and sAPP β levels between the groups. Significant correlations were observed between sAPP α and sAPP β and between sAPP β and Mini-Mental State Examination scores in the total group analysis as well as when LBD and AD groups were analyzed separately. sAPP α and sAPP β levels correlated with A β 38, A β 40, A β 42, and Tau in the LBD group. In AD, sAPP α correlated with p-Tau and sAPP β with A β 40. The differential association between sAPP α and sAPP β with A β and Tau species between LBD and AD groups suggests a possible relationship with the underlying pathologies in LBD and AD.
    Type of Medium: Online Resource
    ISSN: 2090-0252
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2011
    detail.hit.zdb_id: 2573333-3
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  • 2
    In: International Journal of Alzheimer's Disease, Hindawi Limited, Vol. 2010 ( 2010), p. 1-11
    Abstract: Background . Patients afflicted with Alzheimer's disease (AD) exhibit a decrease in the cerebrospinal fluid (CSF) concentration of the 42 amino acid form of β -amyloid ( A β 42 ). However, a high discrepancy between different centers in measured A β 42 levels reduces the utility of this biomarker as a diagnostic tool and in monitoring the effect of disease modifying drugs. Preanalytical and analytical confounding factors were examined with respect to their effect on the measured A β 42 level. Methods . Aliquots of CSF samples were either treated differently prior to A β 42 measurement or analyzed using different commercially available xMAP or ELISA assays. Results . Confounding factors affecting CSF A β 42 levels were storage in different types of test tubes, dilution with detergent-containing buffer, plasma contamination, heat treatment, and the origin of the immunoassays used for quantification. Conclusion . In order to conduct multicenter studies, a standardized protocol to minimize preanalytical and analytical confounding factors is warranted.
    Type of Medium: Online Resource
    ISSN: 2090-0252
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2010
    detail.hit.zdb_id: 2573333-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
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