Middle-aged HIV-infected adults have high fall risk. 3 key findings →
Design: cohort study Participants: 359 Evidence: moderate
Full summary, score breakdown and related studies → Original source
27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Middle-aged HIV-infected adults have high fall risk. 3 key findings →
Design: cohort study Participants: 359 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Although the majority of studies agreed that the Functional Assessment Staging 7c criterion was not a reliable predictor of 6-month mortality, we found a lack of prognosticator concordance across the literature. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
IL-6, and, to a lesser degree, CRP levels were associated with WMH severity as well as global markers of brain atrophy. 4 key findings →
Design: cross-sectional Participants: 1,316 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Lower RBC DHA levels are associated with smaller brain volumes and a "vascular" pattern of cognitive impairment even in persons free of clinical dementia. 3 key findings →
Design: cross-sectional Participants: 1,575 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Thirty full-text articles met the eligibility criteria. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Ascertainment of the -synuclein level in CSF somewhat improves the differential diagnosis of AD vs DLB and PDD when combined with established AD biomarkers. 3 key findings →
Design: cross-sectional Participants: 453 Evidence: low
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1680 participants were randomized over the recruitment period in MAPT study. 1 key finding →
Participants: 1,680 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
No registered drug affects the deposition of Aβ in the brain of AD patients. 5 key findings →
Participants: 20 Evidence: high
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Few teeth without dentures and absence of a regular dentist, not poor mastication and poor attitudes toward dental health, were associated with higher risk of dementia onset in the older Japanese cohort even after adjustment for available covariates. 4 key findings →
Design: cohort study Participants: 220 Evidence: moderate
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MBs did not influence the rate of cognitive decline in patients with AD. 5 key findings →
Design: cohort study Participants: 221 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease (AD) is the most common cause of dementia. 3 key findings →
Participants: 510 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The role of atrial fibrillation in cognitive impairment and dementia, independent of stroke, is uncertain. 4 key findings →
Design: post-hoc analysis Participants: 31,506 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Pathogenic mutations in APP, PSEN1, PSEN2, MAPT and GRN have previously been linked to familial early onset forms of dementia. 4 key findings →
Evidence: low
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The extent to which specific factors influence diagnostic delays in dementia is unclear. 4 key findings →
Design: cohort study Evidence: moderate
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This text describes FreeSurfer, an open-source suite of tools for neuroimaging data analysis. 3 key findings →
Full summary, score breakdown and related studies → Original source Free full text
This study investigated the role of microglia in remodeling synapses within the developing brain. 3 key findings →
Full summary, score breakdown and related studies → Original source Free full text
Though these findings cannot prove causality, and we cannot rule out the possibility of residual confounding, they provide more evidence of the risk of using these drugs in older patients, reinforcing the concept that they should not be used in the absence of clear need. 4 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Four plasma analytes were consistently associated with the diagnosis of very mild dementia/MCI/AD in 3 independent clinical cohorts. 3 key findings →
Participants: 566 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
LSS treatment may improve episodic memory in AD patients and may be regarded as a clinical option to counteract the cognitive decline typical of the disease. 2 key findings →
Evidence: high
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Phenotypic personality dimensions, primarily neuroticism and extraversion, moderate the relationship between APOE [Latin Small Letter Open E]-4 genotype and cognitive outcomes among older adults. 1 key finding →
Evidence: high
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Mild cognitive impairment is common in nondemented Parkinson's disease (PD) patients and may be a harbinger of dementia. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
In general, the MoCA-BJ is an acceptable tool for MCI screening in both urban and rural regions of Beijing. 2 key findings →
Design: cross-sectional Participants: 115 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Behavioral symptoms such as repetitive speech, wandering, and sleep disturbances are a core clinical feature of Alzheimer disease and related dementias. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
MBSR was more effective at improving overall mental health, reducing stress, and decreasing depression than CCES. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
This study robustly characterized the prevalence of sleep complaints in large samples of the elderly in LAMICs and identified potential risk factors that may be specific to these populations. 3 key findings →
Design: meta-analysis Evidence: high
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Free full text links and the Full text may need a subscription label come from Unpaywall, Europe PMC and OpenAlex records of free copies, checked 10 Oct 2026. A study with neither is unknown, not paywalled. Show only studies that are free to read
This is alzhub's own score. It is not an official metric, not an impact factor, and no journal, publisher or ranking body endorses it. We built it so that a reader who is not a scientist can tell a landmark trial from a conference abstract without having to already know the difference. Every point comes from one of 20 components, all of them printed on the study itself, so you can disagree with our arithmetic rather than having to trust the total.
Journals are placed in ordered tiers, never given a numeric impact factor — we could not verify current impact factors from a source we control, and an invented one would be worse than none. Tier 1 is the top-tier general journals (NEJM, The Lancet, JAMA, Nature, Science, Nature Medicine); tier 2 is the leading specialty journals; tier 3 is every other peer-reviewed journal. A separate part scores how much the journal's own papers are cited, which tells the tier-3 journals apart.
Two rules we don't bend. First, we never fill in a missing value: if a record does not state a sample size or a design, that component scores zero, and if we simply have no data for a part, such as a citation count, that part is left out and the study is scored on the parts we could check. The study card says which. Second, anything that is not a peer-reviewed article is capped at 16/100 and carries a warning chip — so a conference abstract or a company press release can never outrank a peer-reviewed paper, no matter how good it looks.
We rank a rigorous null result — a good trial showing that something does not work — above an early positive finding. Someone deciding whether to buy a supplement is served by that, and the rigour is already counted by the design and journal components.
The score is computed from the published data alone and is reproducible: the same file always yields the same numbers.
See the whole rubric drawn out → — four charts covering all 27,380 studies: how the scores are spread and where the cap bites, which of the 20 components the library is strong and weak on, which subjects rest on stronger evidence, and what kinds of study each subject is actually built from.
This is a large sample of the Alzheimer's literature, not an exhaustive index of it. It holds 27,380 records, built mostly from automated pulls of Europe PMC (60.6% of the library) and OpenAlex (18.6%), plus smaller pulls from PubMed, Crossref and medRxiv. If a study, a drug, or a finding isn't here, that is not evidence it doesn't exist in the literature — it may simply not have been pulled in yet.
1,032 records (3.8% of the library) are not peer-reviewed — 962 of those are preprints posted before any journal review, and the rest are conference abstracts, regulatory notices and reports. Every study card on this page states its status plainly, and the score above is capped for anything that isn't a peer-reviewed article.
See the full, machine-readable breakdown of this library's coverage →