28,980 Alzheimer's and dementia studies in plain English, each scored out of 100.
Body mass index (BMI), type 2 diabetes (T2D) and related cardiometabolic features associate with Alzheimers disease (AD) risk, yet shared mechanisms remain poorly understood. 1 key finding →
Evidence: low
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
AbstractO_ST_ABSBackgroundC_ST_ABSGlucagon-like peptide-1 (GLP-1) receptor agonists and sodium-glucose cotransporter-2 (SGLT2) inhibitors are increasingly used for type 2 diabetes. 5 key findings →
Participants: 6,328 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
In the fully adjusted Cox model, baseline statin exposure was associated with a lower risk of incident AMI (HR, 0.805; 95% CI, 0.731-0.887). 3 key findings →
Design: cohort study Participants: 174,014 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Persistent racial disparities in dementia raise concerns regarding the validity and generalizability of existing prognostic models across diverse populations. 2 key findings →
Participants: 55,004 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
BACKGROUNDPeople with type 2 diabetes mellitus (T2DM) are at higher risk of cerebral small vessel disease and left ventricular hypertrophy (LVH), potentially contributing to cognitive decline and dementia. 5 key findings →
Design: cohort study Participants: 62 Evidence: moderate
Full summary, score breakdown and related studies → Original source
O_FIG O_LINKSMALLFIG WIDTH=200 HEIGHT=113 SRC="FIGDIR/small/26361997v1_ufig1.gif" ALT="Figure 1"> View larger version (32K): org.highwire.dtl.DTLVardef@1dac0d9org.highwire.dtl.DTLVardef@aaf8f2org.highwire.dtl.DTLVardef@be10a1org.highwire.dtl.DTLVardef@35c7be_HPS_FORMAT_FIGEXP M_FIG C_FIG BACKGROUNDThe effect of neurovascular health on cardiovascular outcomes is not well-known. 4 key findings →
Participants: 3,263 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Higher education (OR = 1.23, SE = 0.05, 95% CI = [1.10, 1.36], p < 0.001), female sex (OR = 1.30, SE = 0.09, 95% CI = [1.10, 1.55], p = 0.003), and lower age (OR = 0.67, SE = 0.04, 95% CI = [0.61, 0.73], p < 0.001) were associated with increased odds of SuperAger status. 5 key findings →
Participants: 3,513 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
ImportanceLower relative amplitude of the rest-activity pattern has been associated with cognitive decline and incident dementia in older adults, but its relationship with domain-specific cognitive performance during midlife is less well characterized. 5 key findings →
Design: cross-sectional Participants: 851 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Over a median follow-up of 13 years, 5,304 participants developed dementia. 4 key findings →
Participants: 151,832 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Hearing loss is a potential risk factor for dementia, but public awareness of this link and its behavioral implications remain poorly understood. 2 key findings →
Design: cross-sectional Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The exposome factors, such as diet, lifestyle, microbiome, chemical exposures and social exposome, shapes human health beyond genetic influences, but the mechanisms remain only partially understood. 1 key finding →
Participants: 449 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer disease,* the most common cause of dementia, affects an estimated 6.5 million persons aged ≥65 years in the United States (1). 2 key findings →
Evidence: low
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
Subjective cognitive decline (SCD), the self-reported experience of worsening or more frequent memory loss or confusion, might be a symptom of early-stage dementia or future serious cognitive decline such as Alzheimer disease* or a related dementia (ADRD) (1). 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Most evidence on dementia risk factors comes from older or clinical samples, leaving their relation to normal cognitive aging unclear. 4 key findings →
Participants: 1,396 Evidence: moderate
Full summary, score breakdown and related studies → Original source
We revealed graded, allele dosage‑dependent risk elevations for ACD, AD and VaD among APOE4 carriers, whereby homozygous carriers exhibited substantially higher incident dementia risk relative to heterozygous carriers and non‑carriers across all three clinical endpoints. 5 key findings →
Participants: 58,876 Evidence: low
Full summary, score breakdown and related studies → Original source
Educational attainment and physical activity PRSs were associated with AD in both sexes. 5 key findings →
Design: systematic review Participants: 27,751 Evidence: high
Full summary, score breakdown and related studies → Original source
Frailty index was associated with carboxylic acids and derivatives, fatty acyls and organooxygen compounds across multiple clusters, and a large number of lipids were linked to frailty score, potentially implicating dysregulation of energy metabolism in the pathophysiology of frailty and forming a panel of predictive biomarkers of at risk patients. 3 key findings →
Participants: 118 Evidence: low
Full summary, score breakdown and related studies → Original source
Identifying scalable, objective markers of dementia risk is essential for early prevention and intervention. 3 key findings →
Participants: 562 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Genetically predicted BP raises WMH in European and Japanese ancestry. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Microglial activation in response to lipopolysaccharide (LPS) requires Toll-like receptor 4 (TLR4) redistribution into cholesterol- and sphingolipid-rich membrane domains, yet the lipid determinants of this process remain unclear. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Familial Alzheimer’s disease (AD) mutations in amyloid precursor protein (APP) alter amyloid-β (Aβ) secretion profiles, but their effects on neuronal protein and lipid homeostasis remain incompletely understood. 4 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Traumatic brain injury (TBI) is a risk factor for Alzheimer’s disease (AD), and both conditions are associated with impaired glucose metabolism and mitochondrial dysfunction. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Parental history of dementia is a risk factor for Alzheimer’s disease, although the mechanisms underlying this association remain poorly understood. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
10 of the 3,795 studies in this tag that have a study page, picked by a fixed rule (a hash of each study's address), not by score or date; each page of this list shows a different 10. The same 10 appear here every time.
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 28,980 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 28,980 records, built mostly from automated pulls of Europe PMC (62.8% of the library) and OpenAlex (17.6%), 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.
1,038 records (3.6% of the library) are not peer-reviewed — 966 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 →