We also identified several common challenges. 2 key findings →
Design: systematic review Evidence: high
Full summary, score breakdown and related studies → Original source
27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
We also identified several common challenges. 2 key findings →
Design: systematic review Evidence: high
Full summary, score breakdown and related studies → Original source
Intra- and inter-laboratory variability of cerebrospinal fluid (CSF) biomarker analyses remains an important issue. 1 key finding →
Design: longitudinal study Participants: 85 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Twelve studies were included in the final analysis. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The COMCID trial will identify the therapeutic potential of cilostazol. 2 key findings →
Design: cohort study Evidence: high
Full summary, score breakdown and related studies → Original source
The expected outcome is to ensure the continuity of care from clinical practice to the patient's home, enabling also cost effectiveness and the empowerment of patient and caregiver in the care process, positively impacting on their quality of life. 1 key finding →
Design: randomized controlled trial Participants: 30 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
This paper explores the rationale for a mobile phone-led intervention and details the app's effect on behavior change and subsequent clinical outcomes. 5 key findings →
Design: randomized controlled trial Participants: 102 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
The authors could not definitively demonstrate whether the addition of 2 years of in-home occupational therapy to a collaborative care management model slowed the rate of functional decline among persons with Alzheimer disease. 3 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
We tested the hypotheses that TDP-43 with Alzheimer's disease pathology is a common mixed pathology; is related to increased likelihood of expressing clinical Alzheimer's-type dementia; and that TDP-43 pathologic stage is an important determinant of clinical Alzheimer's-type dementia. 5 key findings →
Participants: 398 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Autosomal-dominant AD is associated with increased WMH well before expected symptom onset. 4 key findings →
Participants: 299 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The use of AC medication was associated with increased brain atrophy and dysfunction and clinical decline. 3 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Beneficiaries with dementia who had lower levels of continuity of care were younger, had a higher income, and had more comorbid medical conditions. 3 key findings →
Design: retrospective cohort Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Higher concentrations may reflect the intensity of the disease in FTD and are associated with more rapid atrophy of the frontal lobes. 3 key findings →
Participants: 74 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Synaptic dysfunction occurs early in senile dementias, presumably as a result of decreased levels of functional synaptic proteins as found in autopsied brains of patients with Alzheimer's disease (AD) or frontotemporal dementia (FTD). 3 key findings →
Design: cross-sectional Participants: 12 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
We postulated that cerebral amyloid angiopathy (CAA), characterised by cortical vascular amyloid deposits, is associated with cortical tissue loss independent of parenchymal Alzheimer's disease pathology. 4 key findings →
Design: case-control study Participants: 63 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
In this study, clinically normal adults with SNAP did not exhibit evidence of elevated tau levels, which suggests that this biomarker construct does not represent amyloid-independent tauopathy. 5 key findings →
Design: longitudinal study Participants: 247 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Thirty-eight (68%) patients who consented to PET imaging had PS-MCI. 5 key findings →
Design: prospective cohort Participants: 178 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Our results provide evidence supporting 25OHD as a causal risk factor for AD. 5 key findings →
Participants: 33,996 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
A growing body of evidence suggests that adherence to the Mediterranean diet (MD) may protect against cognitive decline and dementia. 3 key findings →
Design: systematic review Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
There are cross-sectional evidences of an association between sleep disorders and cognitive impairment on older adults. 5 key findings →
Design: systematic review Evidence: high
Full summary, score breakdown and related studies → Original source Full text may need a subscription
This search located 10,338 individual references, of which 164 are included in this review. 2 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
There were minimal effects of lifestyle enrichment on AD biomarker trajectories (specifically rates). 5 key findings →
Design: longitudinal study Participants: 393 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The FAD cortical signature appears to be similar to that described for sporadic AD. 5 key findings →
Design: longitudinal study Participants: 43 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Dementia rates varied over 60% between groups, providing a comprehensive benchmark for the NAPA goal of reducing disparities. 2 key findings →
Participants: 18,778 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Microbleed prevalence was 15.3% (median [interquartile range] count, 1 [1-88]). 5 key findings →
Participants: 4,841 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The results of our meta-analysis allow a better grasp of the impact of this disease in Europe. 2 key findings →
Design: meta-analysis 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. 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 27,380 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 →