30,980 Alzheimer's and dementia studies in plain English, each scored out of 100.
A total of 42 342 participants from the pooled cohorts were included (mean [SD] age, 61.3 [9.8] years; 55.0% female). 5 key findings →
Design: cohort study Participants: 342 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Clinicians accurately predicted AD pathological findings or their absence in most cases. 4 key findings →
Design: cohort study Participants: 151 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Persons with MCI also have impaired motor function, and the degree of impairment in lower extremity function is related to the risk of AD. 1 key finding →
Design: cohort study Participants: 558 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Consumption of up to three servings of wine daily is associated with a lower risk of AD in elderly individuals without the APOE epsilon-4 allele. 5 key findings →
Design: cohort study Participants: 260 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Elevated midlife blood pressures, and the resulting increased white matter hyperintensities, increase the risk for MCI in a group of community-dwelling older men to at least the same degree as apolipoprotein E4 genotype. 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source
We conclude that smaller PFAv may contribute to slower gait through slower information processing. 4 key findings →
Design: longitudinal study Participants: 214 Evidence: moderate
Full summary, score breakdown and related studies → Original source
We identified 1143 dementia-free individuals with acute stroke during follow-up: 1061 (92.8%) ischemic, 82 (7.2%) hemorrhagic, 49.9% female, and 30.8% Black. 5 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The telmisartan group had the lowest risk of all dementias (telmisartan vs NT-ARB: hazard ratio [HR]: 0.78; 95% confidence interval [CI]: 0.60 to 1.01; telmisartan vs angiotensin-converting enzyme inhibitor: HR: 0.67; 95% CI: 0.48 to 0.94). 5 key findings →
Design: cohort study Participants: 39,665 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Of the total, 908 (37.0%) participants had cSVD on MRI reading at baseline. 5 key findings →
Design: cohort study Participants: 2,454 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
We recruited 210 participants; 205 (66.8% male; aged 66.4±11.1 years) had useable data. 5 key findings →
Design: longitudinal study Participants: 210 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
In ARIC (n = 1,736, mean age 63, 58.8% female, 48.7% non-Hispanic White individuals, median follow-up 18.6 years), the dementia incidence rate was 10.4 (95% CI, 9.2-11.6) per 1,000 person-years. 5 key findings →
Design: cohort study Participants: 1,736 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease (AD) is the most common cause of dementia and is characterized by progressive neurodegeneration and cognitive decline. 1 key finding →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Cerebral small vessel disease (SVD) is recognized as a major vascular contributor to cognitive decline, ultimately leading to dementia and stroke. 1 key finding →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Sensitivity analyses were performed to validate the robustness of the linear regression results. 4 key findings →
Design: longitudinal study Participants: 832 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Among 2,335 participants (mean age 52.3 ± 11.2 years; 56.6% women), CVD risk trajectories over 10 years were classified as accelerated increase (29.2%), moderate increase (30.9%), or stable (39.9%). 5 key findings →
Design: cohort study Participants: 2,335 Evidence: moderate
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Cerebral amyloid angiopathy (CAA) is one of the major types of cerebral small vessel disease, and a leading cause of spontaneous intracerebral hemorrhage and cognitive decline in elderly patients. 5 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source
In this multi-cohort study of older adults without cognitive impairment, we show that WMH and lacunes independently predict increased risk of MCR, after adjusting for key confounders. 5 key findings →
Design: cohort study Participants: 1,772 Evidence: moderate
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Arterial spin labeling (ASL) is a non-invasive MRI technique to measure cerebral blood flow (CBF). 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Older adults with dementia who take atypical antipsychotics have a similar risk of ischaemic stroke to those taking typical antipsychotics. 1 key finding →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source
There are specific risk factors associated with feeding tube placement in nursing home residents with severe cognitive impairment. 4 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Although concerns about increased bleeding risk with combined warfarin-antiplatelet therapy are not unfounded, the risk of bleeding is moderately increased. 2 key findings →
Design: retrospective cohort Evidence: moderate
Full summary, score breakdown and related studies → Original source
Our data suggest that cardiovascular risk factors may modulate the clinical expression of CADASIL. 5 key findings →
Design: prospective cohort Evidence: moderate
Full summary, score breakdown and related studies → Original source
G) Functions, such as vessel stabilization, regulation of vascular tone and maintenance of local and tissue homeostasis (contractile capacity and vessel permeability regulation), matrix protein synthesis, macrophage-like properties, immunological defense, intervention in coagulation, participation in mechanisms that regulate the quiescent and angiogenic stages of blood vessels (including the behaviour of pericytes during sprouting angiogenesis and intussuceptive vascular growth, as well as pericyte interactions with endothelium and other cells, and with extracellular matrix) and plasticity, as progenitor cells with great mesenchymal potential, originating other pericytes, fibroblast/myofibroblasts, preadipocytes, chondroblasts, osteoblasts, odontoblasts, vascular smooth muscle and myointimal cells. 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source
SES and LA were associated with better cognitive performance at baseline, but were not associated with cognitive decline over time. 5 key findings →
Design: longitudinal study Participants: 181 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
In the Research Article "Magnitude and Time-Course of Dementia Risk in Stroke Survivors: A Population-Wide Matched Cohort Study" by Joundi et al., 1 the keys for Figure 3, A-D should indicate red for "Stroke," "Ischemic Stroke," "ICH," and "Stroke," respectively. 2 key findings →
Design: cohort study Evidence: moderate
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 30,980 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 30,980 records, built mostly from automated pulls of Europe PMC (65.2% of the library) and OpenAlex (16.4%), 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.
1,042 records (3.4% of the library) are not peer-reviewed — 967 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 →
Newest studies, as a dated timeline → Atom feed Where this research is being discussed: events