The reliable worsening method produced a cut point only for amyloid PET. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
The reliable worsening method produced a cut point only for amyloid PET. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Using PET brain scans, researchers found that where tau protein tangles build up in the brain closely tracks which brain regions lose function and matches a person's specific symptoms (memory loss vs. language problems vs. visual problems), much more closely than where amyloid plaques sit. 4 key findings →
Design: cross-sectional Participants: 35 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Regions with high-average SUVR are not necessarily those with the greatest tau pathology. 1 key finding →
Participants: 490 Evidence: low
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Amyloid-positive cognitively healthy participants showed a significant increase in mI/creatine and mI/NAA levels compared to amyloid-negative healthy elderly (p Conclusions mI levels are elevated already at asymptomatic stages of AD. 2 key findings →
Design: cross-sectional Evidence: low
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Setup and daily use of mHealth technology appears to be feasible for a person with cognitive impairment with the help of a partner, but increasing daily step counts over 8 weeks was not achieved. 1 key finding →
Participants: 21 Evidence: high
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This study examined the effectiveness of three different learning methods: trial and error learning (TE), errorless learning (EL) and learning by modeling with spaced retrieval (MR) on the relearning process of IADL in mild-to-moderately severe Alzheimer's Dementia (AD) patients (n=52), using a 6-weeks randomized controlled trial design. 5 key findings →
Design: randomized controlled trial Participants: 52 Evidence: high
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Two decades of epidemiological research shows that silent cerebrovascular disease is common and is associated with future risk for stroke and dementia. 3 key findings →
Evidence: high
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Twenty-four patients with Lewy body disease (7 DLB, 8 PD-impaired, and 9 PD-normal) underwent multimodal brain imaging, cognitive testing, and neurologic evaluation, and imaging measures were compared with those of an independently acquired group of 29 controls with minimal brain amyloid burden as measured with carbon 11-labeled Pittsburgh Compound B ([11C]PiB) positron emission tomography (PET). 5 key findings →
Design: cross-sectional Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Depression, anxiety and sleep problems are the main challenges that are faced by family caregivers of patients with Alzheimer's disease. 4 key findings →
Design: cross-sectional Participants: 309 Evidence: low
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ADNI-3 will aim to inform AD treatment trials and facilitate development of AD disease-modifying treatments. 2 key findings →
Evidence: low
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We developed an accurate prognostic model for predicting MCI-to-dementia progression over a three-year period. 4 key findings →
Participants: 139 Evidence: low
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Emerging evidence supports a role for innate immunity and microglia in Alzheimer's disease (AD) pathophysiology. 4 key findings →
Participants: 218 Evidence: low
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Genetic variants of TREM2, a protein expressed selectively by microglia in the brain, are associated with Alzheimer's disease (AD). 4 key findings →
Evidence: low
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TREM2 is a lipid-sensing activating receptor on microglia known to be important for Alzheimer's disease (AD), but whether it plays a beneficial or detrimental role in disease pathogenesis is controversial. 4 key findings →
Evidence: low
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Late-life depressive symptoms have been extensively studied for their relationship with incident dementia, but have been typically assessed at a single timepoint. 4 key findings →
Participants: 3,325 Evidence: moderate
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The chronic effects of repetitive head impacts (RHI) on the development of neuroinflammation and its relationship to chronic traumatic encephalopathy (CTE) are unknown. 4 key findings →
Evidence: moderate
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Genetic risk factors for Alzheimer's disease imply that inflammation plays a causal role in development of the disease. 4 key findings →
Participants: 299 Evidence: low
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This longitudinal study sought to determine whether the 18 kDa translocator protein (TSPO), a marker of neuroinflammation, increases over time in Alzheimer's disease. 1 key finding →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Lateralization of function is an important organization of the human brain. 3 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Progressive and relatively circumscribed loss of semantic knowledge, referred to as semantic dementia (SD) which falls under the broader umbrella of frontotemporal dementia, was officially identified as a clinical syndrome less than 50 years ago. 4 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Cognitive impairment, which is frequently undocumented, may indicate greater risk of readmission for individuals with HF than those without. 3 key findings →
Design: prospective cohort Evidence: moderate
Full summary, score breakdown and related studies → Original source
Building on well-established animal data demonstrating the effects of early maternal support on hippocampal development and adaptive coping, a few longitudinal studies suggest that early caregiver support also impacts human hippocampal development. 4 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Medial temporal lobe AV-1451 uptake distinguishes AD dementia from probable DLB, which may be useful for differential diagnosis. 3 key findings →
Participants: 19 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Idiopathic rapid eye movement (REM) sleep behaviour disorder (IRBD) manifests as unpleasant dreams and vigorous behaviours during REM sleep that can result in injuries. 1 key finding →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Long-term exposures to air pollution and traffic noise were positively associated with MCI, mainly with the amnestic subtype. 4 key findings →
Design: cross-sectional Participants: 309 Evidence: low
Full summary, score breakdown and related studies → Original source
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 →