Epilepsy has been associated with cognitive impairment and potentially dementia in older individuals. 4 key findings →
Design: cross-sectional Evidence: moderate
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.
Epilepsy has been associated with cognitive impairment and potentially dementia in older individuals. 4 key findings →
Design: cross-sectional Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
A reliable method of detecting Alzheimer disease (AD) in its prodromal state is needed for patient stratification in clinical trials or for personalizing existing or potential upcoming therapies. 4 key findings →
Design: cohort study Participants: 928 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Plasma markers have been reported to be associated with brain amyloid burden, tau pathology, or neurodegeneration. 4 key findings →
Design: cross-sectional Participants: 183 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
We investigated the associations between retinopathy and dementia and its subtypes Alzheimer disease (AD) and vascular dementia both cross-sectionally and prospectively in the Rotterdam Study, a large population-based cohort study. 4 key findings →
Design: cohort study Participants: 195 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
We analyzed data from 462 ADNI participants without dementia who underwent Aβ ([ 18 F]florbetapir or [ 18 F]florbetaben) and tau ([ 18 F]flortaucipir) PET, structural MRI, and cognitive testing. 4 key findings →
Design: cross-sectional Participants: 156 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Several families with an early-onset form of familial Alzheimer's disease have been found to harbour mutations at a specific codon (717) of the gene for the beta-amyloid precursor protein (APP) on chromosome 21. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Innate immunity is associated with Alzheimer's disease 1 , but the influence of immune activation on the production of amyloid-β is unknown 2,3 . 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Astrocytes fulfill neuronal trophic roles normally, but are transformed in Alzheimer disease (AD) into A1-type reactive astrocytes that may destroy neurons through unknown mechanisms. 2 key findings →
Participants: 28 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Neuronal inclusions of poly(GA), a protein unconventionally translated from G4C2 repeat expansions in C9ORF72, are abundant in patients with frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS) caused by this mutation. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We tested the hypothesis that BBB breakdown is associated with cognitive decline and inflammation in nondemented elders. 4 key findings →
Participants: 120 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Co-pathologies play an important role in the expression of the Alzheimer's disease clinical phenotype and may influence treatment efficacy. 4 key findings →
Participants: 96 Evidence: low
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Braak stages of tau neurofibrillary tangle accumulation have been incorporated in the criteria for the neuropathological diagnosis of Alzheimer's disease. 4 key findings →
Participants: 301 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The critical role of primary care clinicians (PCCs) in Alzheimer's disease (AD) prevention, diagnosis and management must evolve as new treatment paradigms and disease-modifying therapies (DMTs) emerge. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Loss of motor function is a common consequence of aging, but little is known about the factors that predict idiopathic motor decline. 4 key findings →
Design: cohort study Participants: 906 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease (AD) is a complex multifactorial neurodegenerative disorder and the most common form of dementia. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease is characterized by the combined presence of amyloid plaques and tau pathology, the latter being correlated with the progression of clinical symptoms. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
This was a retrospective cohort study to examine differences in health service utilization and outcomes between FFS and MA patients in SNFs following hip fracture hospitalization during the period January 1, 2011, to June 30, 2015, and followed up until December 31, 2015. 5 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Of the 18,341 patients, we found that 2202 (12%) were described as "frail" in clinical notes. 5 key findings →
Design: cohort study Participants: 18,341 Evidence: moderate
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Beneficiaries included 2,713,573 White, 251,958 Black, 196,845 Hispanic, 95,719 Asian, 11,727 American Indian/Alaska Native, and 63,795 of other race/ethnicity. 5 key findings →
Design: retrospective cohort Participants: 3,333,617 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Care quality has important implications for people with dementia. 1 key finding →
Design: cohort study Participants: 373,695 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The analysis involved 4674 participants (2904 [62.13%] female and 1770 [37.87%] male; mean [SD] age, 41.51 [13.41] years). 5 key findings →
Participants: 906 Evidence: low
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The study included 234 patients (mean 71 years, 42% female). 5 key findings →
Design: longitudinal study Participants: 234 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Among 4392 participants (mean [SD] age, 68.2 [7.8] years; 2359 [53.7%] women), 723 (16.5%) were APOE ε4 heterozygotes and 33 (0.8%) were APOE ε4 homozygotes. 5 key findings →
Design: cohort study Participants: 4,392 Evidence: moderate
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Of 413 477 All of Us participants, 2038 were eligible. 5 key findings →
Design: cohort study Participants: 26 Evidence: moderate
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Disclosure (N = 194) and non-disclosure (N = 180) groups did not differ on IGT-AD (mean disclosure-non-disclosure difference [MD] at 6 weeks: -1.5, p = 0.14; 9 months: -1.2, p = 0.35; 15 months: -2.0, p = 0.07), IES-R (MD at 6 weeks: 0.00, p = 0.98; 9 months: 0.01, p = 0.84; 15 months: 0.03, p = 0.64), or change in secondary outcomes. 4 key findings →
Design: randomized controlled trial Participants: 194 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
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.
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 →