Journal Article

DZNE-2020-02735

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Cerebrospinal fluid soluble amyloid-β protein precursor as a potential novel biomarkers of Alzheimer's disease.

Lewczuk, P. ; Popp, J. ; Lelental, N. ; Kölsch, H. ; Maier, W.DZNE* ; Jessen, F. (Last author)DZNE* ; Kornhuber, J.

2012
IOS Press Amsterdam

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Please use a persistent id in citations: doi:10.3233/JAD-2011-110857

Abstract: In this report, we confirm our previous findings of increased concentrations of soluble amyloid-β protein precursor (sAβPP) in cerebrospinal fluid (CSF) of patients with Alzheimer's disease (AD) and mild cognitive impairment (MCI) in a large cohort of patients (n = 314), not overlapping with those of our previous study, and we extend our observations by including a control group of participants with normal cognition. In addition, we investigate the effects of age, the APOEε4 genotype, and the blood-CSF barrier function on the concentrations of sAβPPα and sAβPPβ. The study participants were categorized according to clinical-neuropsychological criteria, supported by CSF neurochemical dementia diagnostics (NDD) analyses. sAβPPα concentrations in the AD group (132.0 ± 44.8) were significantly higher than in the control group (105.3 ± 37.3, p < 0.0005) but did not differ from the MCI-AD group (138.5 ± 39.5, p = 0.91). The MCI-AD group differed significantly from the MCI-O (97.3 ± 34.3, p < 0.05) group. There was no difference between the control and the MCI-O groups (p = 0.94). Similarly, sAβPPβ concentrations in the AD group (160.2 ± 54.3) were significantly higher than in the control group (129.9 ± 44.6, p < 0.005) but did not differ from the MCI-AD group (184.0 ± 56.4, p = 0.20). The MCI-AD group differed significantly from the MCI-O (127.8 ± 46.2, p < 0.05) group. There was no difference between the control and the MCI-O groups (p > 0.99). We observed highly significant correlation of the two sAβPP forms. Age and the CSF-serum albumin ratio were significant albeit weak predictors of the sAβPPα and sAβPPβ concentrations, while carrying the APOEε4 allele did not influenced the levels of the sAβPP forms. Taken together, the results strongly suggest that CSF sAβPP concentrations may be considered as an extension of already available NDD tools.

Keyword(s): Adult (MeSH) ; Aged (MeSH) ; Aged, 80 and over (MeSH) ; Alzheimer Disease: cerebrospinal fluid (MeSH) ; Alzheimer Disease: diagnosis (MeSH) ; Amyloid beta-Protein Precursor: cerebrospinal fluid (MeSH) ; Apolipoprotein E4: genetics (MeSH) ; Biomarkers: cerebrospinal fluid (MeSH) ; Cognitive Dysfunction: cerebrospinal fluid (MeSH) ; Cognitive Dysfunction: diagnosis (MeSH) ; Cohort Studies (MeSH) ; Female (MeSH) ; Humans (MeSH) ; Male (MeSH) ; Middle Aged (MeSH) ; Amyloid beta-Protein Precursor ; Apolipoprotein E4 ; Biomarkers

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Contributing Institute(s):

1. U Clinical Researchers - Bonn (U Clinical Researchers - Bonn)
2. Clinical Alzheimer’s Disease Research (AG Jessen)

Research Program(s):

1. 344 - Clinical and Health Care Research (POF3-344) (POF3-344)

Appears in the scientific report 2012

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Database coverage:
; BIOSIS Previews ; Clarivate Analytics Master Journal List ; Current Contents - Life Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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