First-pass extracted concept

CSF Aβ42

Candidate: concept label1 source documents5 linked claims
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Extracted Explainers

What the tool is doing

CSF Aβ42 is the comparator biomarker discussed in the abstract. The paper argues that ratio-based measures perform better than Aβ42 alone for AD-related diagnostic tasks.

Source 1DOIPubMed

What it does not solve

The abstract indicates that reduced CSF Aβ42 is not specific to AD-type pathology because it is also associated with non-AD subcortical pathologies.

Source 1DOIPubMed

Alternatives

The abstract presents CSF Aβ42/Aβ40 and CSF Aβ42/Aβ38 ratios as preferable alternatives.

Source 1DOIPubMed

Evidence Snippets

The CSF Aβ42/Aβ40 and Aβ42/Aβ38 ratios are significantly better than CSF Aβ42 to detect brain amyloid deposition in prodromal AD and to differentiate AD dementia from non-AD dementias.
Evidence 1Source 1DOIPubMedprovenance

Supporting Sources

Linked Claims

Claim 1associationsupports2016Source 1DOIPubMed

Decline in CSF Aβ42 is associated with non-AD subcortical pathologies.

Quoted textsource-backed
decline in CSF Aβ42 is also associated with non-AD subcortical pathologies
Claim 2clinical recommendationsupports2016Source 1DOIPubMed

CSF Aβ42/Aβ40 and CSF Aβ42/Aβ38 ratios should be used rather than CSF Aβ42 alone in the clinical work-up of Alzheimer disease.

Quoted textsource-backed
These findings strongly suggest that the ratios rather than CSF Aβ42 should be used in the clinical work-up of AD.
Claim 3comparative diagnostic performancesupports2016Source 1DOIPubMed

CSF Aβ42/Aβ40 and CSF Aβ42/Aβ38 ratios are significantly better than CSF Aβ42 alone for detecting brain amyloid deposition in prodromal Alzheimer disease.

Quoted textsource-backed
The CSF Aβ42/Aβ40 and Aβ42/Aβ38 ratios are significantly better than CSF Aβ42 to detect brain amyloid deposition in prodromal AD
Claim 4comparative diagnostic performancesupports2016Source 1DOIPubMed

CSF Aβ42/Aβ40 and CSF Aβ42/Aβ38 ratios are significantly better than CSF Aβ42 alone for differentiating Alzheimer disease dementia from non-Alzheimer dementias.

Quoted textsource-backed
The CSF Aβ42/Aβ40 and Aβ42/Aβ38 ratios are significantly better than CSF Aβ42 to ... differentiate AD dementia from non-AD dementias.
Claim 5pathology specificitysupports2016Source 1DOIPubMed

CSF Aβ42/Aβ40 and CSF Aβ42/Aβ38 ratios reflect AD-type pathology better than CSF Aβ42 alone.

Quoted textsource-backed
The ratios reflect AD-type pathology better, whereas decline in CSF Aβ42 is also associated with non-AD subcortical pathologies.