A bidirectional relationship has been identified between dementia and epilepsy. 1 key finding →
Design: longitudinal study Participants: 50 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Research
27,780 Alzheimer's and dementia studies in plain English, each scored out of 100.
There are factors, other than the step changes in underlying cause of death coding, driving the progressively increasing temporal trend in relative risk of dementia‐associated death. 2 key findings →
Design: cohort study Evidence: moderate
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37/100
Most persons with dementia in the U.S. die in long-term care communities. 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Opioid use was significantly higher in females and Whites and varied by states. 5 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
36/100
Of 343 palliative care evaluations (for 322 unique patients), 38% were of patients who identified as African American/Black, 38% as White, 9% as Asian/Pacific Islander, and 15% as other races; 41% were of patients who identified as Hispanic/Latino (measured separately from race); 80% were of female patients; and the mean patient age was 88 years. 5 key findings →
Design: retrospective cohort Evidence: moderate
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Dispositional inward anger expression may increase susceptibility to the detrimental impacts of neighborhood disadvantage on cognitive health. 2 key findings →
Design: cohort study Evidence: moderate
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A doença de Alzheimer (DA) é uma enfermidade neurodegenerativa progressiva cuja fisiopatologia envolve, entre outros mecanismos, o acúmulo cerebral de β-amiloide, associado a alterações da proteína tau, sua hiperfosforilação e formação de emaranhados neurofibrilares, contribuindo para a disfunção sináptica e a perda neuronal. 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease (AD) affects ~55 million people globally and is projected to rise steeply with population ageing. 1 key finding →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
36/100
Objetivo:Analisar criticamente o potencial dos exossomos sanguíneos associados a marcadores inflamatórios e ferramentas nanotecnológicas como biomarcadores hematológicos no diagnóstico precoce da Doença de Alzheimer (DA), enfatizando aplicações translacionais. 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Multimorbidity results in use of multiple medications. 5 key findings →
Design: longitudinal study Evidence: moderate
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What do we know? Figure: Douglas BeckEdwards: Our research has primarily addressed the effect of hearing aid technology on “cognitive load.” 5 key findings →
Design: longitudinal study Evidence: moderate
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OASIS-3 is a compilation of MRI and PET imaging and related clinical data for 1098 participants who were collected across several ongoing studies in the Washington University Knight Alzheimer Disease Research Center over the course of 15 years. 4 key findings →
Design: longitudinal study Participants: 1,098 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease progresses heterogeneously across diverse cohorts, yet current predictive models fail to capture this complexity while remaining clinically interpretable. 4 key findings →
Design: longitudinal study Participants: 1,669 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer’s disease manifests through heterogeneous progression patterns across diverse populations, yet current predictive models fail to capture this complexity while maintaining clinical interpretability. 4 key findings →
Design: longitudinal study Participants: 1,669 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
16/100
Adults with Down syndrome carry high risk of developing Alzheimer’s disease and efforts to include this population in clinical trials remain limited. 4 key findings →
Design: longitudinal study Participants: 237 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Adults with Down syndrome (DS) are at risk for Alzheimer’s disease (AD). 4 key findings →
Design: cohort study Participants: 167 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
We estimated associations of educational attainment and Alzheimer disease genetic risk with treatment initiation and incident dementia and compared GLP-1 receptor agonist initiators with initiators of non-sodium-glucose cotransporter 2 inhibitor second-line therapies, with a separate sodium-glucose cotransporter 2 inhibitor compa 4 key findings →
Design: cohort study Participants: 14,364 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Dementia and hearing loss are both highly prevalent conditions among older adults. 4 key findings →
Design: cohort study Participants: 25 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Isolated REM sleep behaviour disorder (RBD) is the strongest prodromal marker of Parkinsons disease (PD) and dementia with Lewy bodies, yet diagnosis requires video-polysomnography with assisted montage and expert scoring and does not scale to screening or trial enrichment. 5 key findings →
Design: longitudinal study Participants: 378 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Cognitively normal older adults are often regarded as a homogeneous population in preventive and disease-modifying clinical trials for dementia. 2 key findings →
Design: prospective cohort Participants: 1,136 Evidence: moderate
Full summary, score breakdown and related studies → Original source
BACKGROUNDQuantitative amyloid-beta (A{beta})-PET is increasingly used in AD prevention trials. 3 key findings →
Design: longitudinal study Participants: 433 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
BackgroundPathogenic variants in GCH1 have been associated with Parkinsons disease (PD), but the clinical phenotype and longitudinal disease course of GCH1-associated PD remain incompletely characterized. 5 key findings →
Design: longitudinal study Participants: 22,825 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Using the ADNI dataset, we found that the model realigned patients according to their clinical diagnoses. 1 key finding →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
BackgroundThe brain age gap (BAG), the difference between neuroimaging-predicted and chronological age, captures inter-individual variation in brain aging. 2 key findings →
Design: longitudinal study Participants: 202 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
BackgroundUp to 30% of individuals harboring core Alzheimers disease (AD) neuropathology--amyloid-{beta} (A{beta};A) and tau (T)--remain cognitively unimpaired. 1 key finding →
Design: cohort study Participants: 500 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Where “Free full text” comes from
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
How the 0–100 score works — and why some entries are capped
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.
- Journal tier up to 10 pts
- Journal's citation record up to 4 pts
- Study design up to 12 pts
- Strength of evidence up to 5 pts
- Peer-review validation up to 10 pts
- How recent up to 5 pts
- Sample size up to 4 pts
- Effect reported up to 3 pts
- Studied in people up to 3 pts
- Randomised / blinded up to 2 pts
- Times cited up to 7 pts
- Citations per year up to 5 pts
- Impact for its field and year up to 6 pts
- Cited by studies here up to 6 pts
- Still being cited up to 4 pts
- Senior author's track record up to 4 pts
- Institution's track record up to 3 pts
- Multi-centre collaboration up to 3 pts
- Indexed in PubMed up to 2 pts
- Free to read up to 2 pts
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 27,780 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.
What this library is — and isn't
This is a large sample of the Alzheimer's literature, not an exhaustive index of it. It holds 27,780 records, built mostly from automated pulls of Europe PMC (61.1% of the library) and OpenAlex (18.3%), 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.
1,034 records (3.7% 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 →