Alzheimer's disease is the most common cause of dementia in elderly people. 5 key findings →
Evidence: high
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27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Alzheimer's disease is the most common cause of dementia in elderly people. 5 key findings →
Evidence: high
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The hippocampus is involved at the onset of the neuropathological pathways leading to Alzheimer's disease (AD). 4 key findings →
Design: longitudinal study Evidence: moderate
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Available data consistently show that risk of progression increases across the preclinical AD stages, where Stage 3 shows a risk of progression comparable to MCI due to AD. 2 key findings →
Design: cross-sectional Evidence: moderate
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The models could aid clinicians in the interpretation of CSF biomarker and hippocampal volume results in individuals with MCI, and help research and clinical settings to prepare for a future of precision medicine in Alzheimer's disease. 1 key finding →
Participants: 883 Evidence: moderate
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An estimated 40% of dementia is potentially preventable by modifying 12 risk factors throughout the life course. 4 key findings →
Participants: 39 Evidence: moderate
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Accurate diagnosis of dementia with Lewy bodies (DLB) remains challenging, with misdiagnosis potentially leading to harmful treatment decisions. 3 key findings →
Participants: 740 Evidence: moderate
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We have identified 10 plasma proteins strongly associated with disease severity and disease progression. 3 key findings →
Participants: 1,148 Evidence: low
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Copy-number variants (CNVs) are major contributors to human disease. 2 key findings →
Design: case-control Participants: 22,319 Evidence: moderate
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Biomarkers for Alzheimer's disease (AD) based on non-invasive methods are highly desirable for diagnosis, disease progression, and monitoring therapeutics. 4 key findings →
Design: longitudinal study Evidence: moderate
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The European Union AddNeuroMed program and the US-based Alzheimer Disease Neuroimaging Initiative (ADNI) are two large multi-center initiatives designed to collect and validate biomarker data for Alzheimer's disease (AD). 5 key findings →
Participants: 1,074 Evidence: moderate
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Reduction in hippocampal and amygdala volume measured via structural magnetic resonance imaging is an early marker of Alzheimer's disease (AD). 4 key findings →
Design: case-control study Evidence: moderate
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MCI is a nosological entity proposed as an intermediate state between normal aging and dementia. 5 key findings →
Evidence: low
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Tau form ratio was significantly reduced in patients with PSP (0.504 +/- 0.284) when compared to age-matched controls (0.989 +/- 0.343), and to patients with other neurodegenerative conditions (range = 0.899-1.215). 2 key findings →
Participants: 166 Evidence: low
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LBD/A+T+ and AD cases showed significantly increased CSF levels of synaptic and neuroaxonal biomarkers compared with LBD/A-T- and control subjects. 3 key findings →
Participants: 101 Evidence: low
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Plasma phosphorylated tau (p-tau)181, glial fibrillary acidic protein (GFAP), neurofilament light chain (NfL), and amyloid beta ratio (Aβ42/40) may have diagnostic and prognostic value in Alzheimer's disease (AD). 2 key findings →
Design: cross-sectional Participants: 1,298 Evidence: moderate
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Dementia, a major cause of disability and institutionalization in older people, poses a serious threat to public health and to the social and economic development of modern society. 2 key findings →
Evidence: high
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Among the more than 90 identified genetic risk loci for late-onset Alzheimer's disease (AD) and related dementias, the apolipoprotein E (APOE) gene ɛ2/ɛ3/ɛ4 polymorphisms remain the longstanding benchmark for genetic disease risk with a consistently large effect across studies 1-10 . 5 key findings →
Design: case-control Evidence: high
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Mild cognitive impairment (MCI) as a precursor of dementia with Lewy bodies (DLB) is the focus of recent research, trying to explore the early mechanisms and possible biomarkers of DLB. 5 key findings →
Participants: 20 Evidence: low
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In a double blind randomized crossover trial lasting 6 months selegiline, a selective MAO-B inhibitor, was tested against placebo for activity on verbal memory performances in Alzheimer-type dementia (DAT). 1 key finding →
Evidence: high
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Recent findings suggest that Alzheimer's disease (AD) is a disconnection syndrome characterized by abnormalities in large-scale networks. 4 key findings →
Evidence: low
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Depending on the species, microglial cells represent 5-20% of glial cells in the adult brain. 4 key findings →
Evidence: low
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The burden perceived by caregivers of patients with dementia is a fundamental prognostic aspect in the history of the disease. 4 key findings →
Design: cross-sectional Evidence: low
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The AddNeuroMed and ADNI cohorts were combined giving a total of 329 healthy controls, 421 mild cognitive impairment patients, and 286 Alzheimer's disease (AD) patients. 4 key findings →
Participants: 329 Evidence: low
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Daily informal care time was 0.5 hours higher in moderate compared to mild and 1.3h higher in severe compared to mild cognitive impairment. 3 key findings →
Participants: 5,369 Evidence: moderate
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Serum beta-synuclein level was progressively increased in the AD continuum across the preclinical, MCI and dementia stages compared with controls and was correlated with serum pTau181 (r=0.710), NfL (r=0.494) and GFAP concentrations (r=0.621, p<0.001 for all). 5 key findings →
Participants: 56 Evidence: moderate
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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 →