27,780 Alzheimer's and dementia studies in plain English, each scored out of 100.
MTD showed excellent discrimination of CU versus MCI/DEM (AUC=.89; 95% CI=.87-.92), and discriminability remained high for CU versus MCI (AUC=.88; 95% CI=.85-.92). 5 key findings →
Design: cohort study Participants: 1,224 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
NST showed stable cross-cohort structure (Mantel r = 0.71-0.77) and differentiated MCI (d = -0.39) and AD biomarker status (d = -0.23). 4 key findings →
Design: longitudinal study Participants: 1,479 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Biological staging of individuals with Alzheimer's disease (AD) may improve diagnostic and prognostic work-up of dementia in clinical practice and the design of clinical trials. 4 key findings →
Design: longitudinal study Participants: 426 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Living in locations with higher PM2.5 (per interquartile range [IQR]=3.17μg/m3) or NO2 (per IQR=6.63ppb) was associated with greater MTL atrophy (βPM2.5 = -0.29, 95% confidence interval [CI]=[-0.41,-0.18]; βNO2 =-0.12, 95%CI=[-0.23,-0.02]). 5 key findings →
Design: longitudinal study Participants: 627 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Syn positivity (synSAA+) co-occurred with T (in synSAA+ vs synSAA-, 36% vs 20% T+; p=0.011) and with cognitive impairment (10% vs 7% MCI; 10% vs 0% dementia; p=0.00050). synSAA+ participants' cognitive performance declined ∼40% faster than synSAA-for Digit Symbol, but not other tests. 3 key findings →
Design: longitudinal study Participants: 420 Evidence: moderate
Full summary, score breakdown and related studies → Original source
AADAPt participants had risk factors for developing dementia in future, such as hypertension and hyperlipidemia, but also reported protective factors such as high social engagement. 4 key findings →
Design: longitudinal study Participants: 177 Evidence: moderate
Full summary, score breakdown and related studies → Original source
These findings support a model in which p-tau217 specifically tracks amyloid-driven pathological progression, while markers of neurodegeneration reflect broader age-related processes that are not associated with APOE genotype. 3 key findings →
Design: longitudinal study Participants: 60 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Key Points Question Which candidate plasma proteins are associated with cognitive performance across multiple domains in older adults from the Democratic Republic of Congo? 5 key findings →
Design: prospective cohort Participants: 779 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Plasma eMTBR-tau243 has been associated with tau pathology and cognitive decline. 3 key findings →
Design: cohort study Participants: 436 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Strong αSyn SAA positivity was detected in 24/443 patients with ALS (5.4%); overall positivity, including weak-positive samples, was 37/443 (8.4%). 5 key findings →
Design: longitudinal study Participants: 248 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Distinct biomarker associations with cognitive and emotional functioning support further longitudinal evaluation of BBMs for risk characterization in Latino older adults and potential disease monitoring applications. 3 key findings →
Design: longitudinal study Participants: 122 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Concordance between p-tau217 and Aβ was high in the AD and MCI groups (observed agreement 90.0% in each), but overall agreement across Cohort II was modest (166/351, 47.3%; Cohen's κ = 0.117, 95% CI 0.029–0.204). 3 key findings →
Design: longitudinal study Participants: 918 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Bidirectional stepwise linear regression analysis was performed to identify plasma biomarkers associated with brain Aβ deposition. 5 key findings →
Design: cohort study Participants: 541 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Older age was associated with lower Att-Z (β = −0.315, p < 0.001). 5 key findings →
Design: longitudinal study Participants: 146 Evidence: moderate
Full summary, score breakdown and related studies → Original source
In this cross-sectional study (n=272), plasma pTau217/Aβ42 ratio test accuracy was 90% in Veterans without TBI history, but was significantly lower (63-78% accuracy) in Veterans with TBI history, with lowest accuracy in those with greater TBI severity. 5 key findings →
Design: cohort study Participants: 93 Evidence: moderate
Full summary, score breakdown and related studies → Original source
The analytic sample included 4,465 individuals (mean age 69.7±10.4 years; 58.7% female; 75.8% non-Hispanic White). 4 key findings →
Design: longitudinal study Participants: 51 Evidence: moderate
Full summary, score breakdown and related studies → Original source
The clock claims are unsupported. 3 key findings →
Design: longitudinal study Participants: 83 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease primarily affecting motor neurons but also frequently involving cognitive impairment. 4 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Although most Korean older adults declined LST regardless of living arrangement, determinants of LST preferences differed according to household structure. 5 key findings →
Design: longitudinal study Participants: 3,787 Evidence: moderate
Full summary, score breakdown and related studies → Original source
These findings support mApp-FTT validity as a measure of motor function across neurodegenerative conditions. 4 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source
White matter microstructural abnormalities are increasingly found to be associated with cognitive impairment in Alzheimer’s Disease (AD). 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source
The full cohort included 1044 participants, of whom 779 comprised the proteomics cohort. 5 key findings →
Design: longitudinal study Participants: 674 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Emerging evidence and expert opinion suggest that subcortical microhaemorrhages may be less closely related to cerebral amyloidosis than lobar lesions and may therefore warrant separate consideration in anti-amyloid treatment eligibility criteria. 5 key findings →
Design: longitudinal study Participants: 1,146 Evidence: moderate
Full summary, score breakdown and related studies → Original source
These findings support MRI-derived LC intensity as a marker of early AD-related processes and suggest that LC intensity may provide complementary information not captured by plasma pTau 217 alone. 4 key findings →
Design: longitudinal study Participants: 163 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Chronic pain and cognitive impairment are rising ageing-related burdens. 4 key findings →
Design: longitudinal study Participants: 387,649 Evidence: moderate
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 27,780 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.
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 →