Evidence map›Paper›PMID 31191751›Full record

SynthesisDisease markers2019

Biomarkers for Alzheimer's Disease in Saliva: A Systematic Review.

Helena Sophia Gleerup, Steen Gregers Hasselbalch, Anja Hviid Simonsen

Abstract readSystematic Review
In one paragraph

Synthesis in Disease markers, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Helena Sophia GleerupDanish Dementia Research Centre, Department of Neurology, Rigshospitalet Copenhagen University Hospital, Denmark.
Steen Gregers HasselbalchDanish Dementia Research Centre, Department of Neurology, Rigshospitalet Copenhagen University Hospital, Denmark.
Anja Hviid SimonsenDanish Dementia Research Centre, Department of Neurology, Rigshospitalet Copenhagen University Hospital, Denmark.ORCID 0000-0002-5461-162X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe histopathological changes of Alzheimer's disease (AD) are detectable decades prior to its clinical expression. However, there is a need for an early, inexpensive, noninvasive diagnostic biomarker to detect specific Alzheimer pathology. Recently developed neuroimaging biomarkers show promising results, but these methods are expensive and cause radiation. Furthermore, the analysis of cerebrospinal fluid (CSF) biomarkers requires an invasive lumbar puncture. Saliva is an easily obtained body fluid, and a stable saliva biomarker would therefore be a promising candidate for a future method for diagnosing AD. The purpose of this systematic review was to investigate studies of biomarkers in saliva samples for the diagnosis of AD.

methodsThe included articles were identified through a literature search in PubMed and Google Scholar for all articles until November 1

resultsA total of 65 studies were identified, whereof 16 studies met the inclusion criteria and were included in the systematic review. A plethora of different biomarkers were investigated, and ten out of the sixteen studies showed a statistical significance in biomarkers between patients with AD and healthy, elderly controls, among these biomarkers for specific AD pathology (amyloid beta 1-42 (A

conclusionA

Indexed as

Alzheimer DiseaseBiomarkersHumansSalivaBiomarkers

Identifiers

PMID31191751
PMCPMC6525835

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.