28,580 Alzheimer's and dementia studies in plain English, each scored out of 100.
--Clinical trajectories after a diagnosis of mild cognitive impairment (MCI) vary widely, so prognostic models must account for both the timing of subsequent diagnoses and unequal follow-up. 2 key findings →
Participants: 401 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
INTRODUCTIONDetermining whether plasma biomarkers are preferentially associated with Alzheimers disease (AD)-related rather than age-related brain atrophy patterns may clarify their prognostic and diagnostic clinical use. 5 key findings →
Design: cross-sectional Participants: 818 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Structured AbstractO_ST_ABSINTRODUCTIONC_ST_ABSThe Collaborative Amish Aging and Memory Project (CAAMP) is an ongoing longitudinal study spanning multiple sites, focused on cognitive function and age-related traits in Midwestern Amish (Ohio and Indiana) communities. 5 key findings →
Design: prospective cohort Participants: 3,978 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
While normalizing biomarker values by A{beta}40 or A{beta}42 reduced physiological variability for some biomarkers, the effects of the normalization were compartment-, and cohort-dependent. 5 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Plasma p-tau217 concentrations were positively associated with plasma TNF- (Kendalls {tau} = 0.339; P < .001) and IL-6 (Kendalls {tau} = 0.310; P < .001) concentrations. 5 key findings →
Design: cross-sectional Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
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
GWAS found associations between plasma biomarkers and the APOE gene. 5 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source
At baseline, higher AgeAccelPheno was associated with lower amyloid-β42 to amyloid-β40 (Aβ42:Aβ40) ratio, and higher AgeAccelGrim2 was associated with elevated neurofilament light (NfL). 3 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source
Blood-based biomarkers have expanded access to biologically supported diagnosis of Alzheimer's disease (AD), particularly through measurement of amyloid-beta (Aβ) and phosphorylated tau species1-3. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Biological aging is the correlated decline of multi-organ system integrity central to the etiology of many age-related diseases. 4 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source
Epigenetic clocks can predict pathological aging associated with Alzheimer's disease (AD) risk, albeit findings are mixed regarding if clocks are predictive in blood and in non-European populations. 4 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source
While hippocampal (H) and inferior parietal lobule (IPL) atrophy are used routinely in Alzheimer's disease (AD) diagnostics, the role of enlarged choroid plexus (ChP) remains unclear. 2 key findings →
Participants: 872 Evidence: moderate
Full summary, score breakdown and related studies → Original source
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
This study explored the role of the ubiquitin-proteasome system (UPS) in dominantly inherited Alzheimer's disease (DIAD) by examining changes in cerebrospinal fluid (CSF) levels of UPS proteins along with disease progression, AD imaging biomarkers (PiB PET, tau PET), neurodegeneration imaging measures (MRI, FDG PET), and Clinical Dementia Rating® (CDR®). 5 key findings →
Evidence: low
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
Alzheimer's disease (AD) pathology accumulates years before overt cognitive impairment, yet its multidomain phenotype remains poorly defined. 2 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source
Plasma pTau217 best identified amyloid-PET positivity (AUC > 0.91). 5 key findings →
Design: cross-sectional Evidence: moderate
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
TSE showed stronger unadjusted associations than SUVR in selected region- and outcome-specific comparisons, supporting its potential as a complementary measure. 2 key findings →
Participants: 682 Evidence: low
Full summary, score breakdown and related studies → Original source
Blood-based biomarkers for Alzheimer disease and related dementias have been validated largely in populations of European ancestry. 4 key findings →
Participants: 786 Evidence: low
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
The blood-based biomarker (BBM) profiles associated with genetic susceptibility to Alzheimer’s disease (AD) in general older populations remain poorly understood. 3 key findings →
Participants: 3,947 Evidence: low
Full summary, score breakdown and related studies → Original source
Amyloid biomarkers sample distinct levels of an open, kinetically coupled biochemical system, yet scalar summaries may obscure biologically relevant configuration. 4 key findings →
Participants: 91 Evidence: low
Full summary, score breakdown and related studies → Original source
10 of the 3,555 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 28,580 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 28,580 records, built mostly from automated pulls of Europe PMC (62.2% of the library) and OpenAlex (17.8%), 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 (3.6% 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 →