Persistent pain was associated with accelerated memory decline and increased probability of dementia. 5 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
30,980 Alzheimer's and dementia studies in plain English, each scored out of 100.
Persistent pain was associated with accelerated memory decline and increased probability of dementia. 5 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The pooled sample comprised 4657 participants (30% women) aged ≥ 60 years (mean age was 74 years at sleep assessment). 5 key findings →
Design: cohort study Participants: 2,374 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
One million nine hundred twenty-five thousand, five hundred sixty-three individuals were included across the four databases with a median follow-up ranging from 5.6 to 8.4 years. 4 key findings →
Design: meta-analysis Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
AS01-adjuvanted shingles (herpes zoster) vaccination is associated with a lower risk of dementia, but the underlying mechanisms are unclear. 3 key findings →
Design: cohort study Participants: 436,788 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Among 228 392 participants from UKB (n = 137 374; mean [SD] age at baseline, 62.5 [4.1] years; 53.8% female) and AOU (n = 91 018; mean [SD] age at baseline, 66.9 [7.8] years; 57.1% female), those with a history of a clinical exposure at baseline had higher dementia incidence rates compared with those without such history. 5 key findings →
Design: cohort study Participants: 137 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The overall PAF for dementia in Denmark was 37·8% (95% CI 35·6-40·0) for the assessed risk factors. 4 key findings →
Design: cohort Participants: 1,753,515 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Complexity at multiple levels needs to be understood and overcome to develop effective treatments and preventions for cognitive decline and AD dementia. 1 key finding →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Very mild bvFTD targets a specific subset of frontal and insular regions. 2 key findings →
Design: cohort study Participants: 15 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
White matter lesions are frequently found on cerebral MRI scans of elderly people and are thought to be important in the pathogenesis of dementia. 5 key findings →
Design: cross-sectional Participants: 1,077 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Severe psoriasis is associated with an increased risk of death from a variety of causes, with cardiovascular death being the most common aetiology. 4 key findings →
Design: cohort study Participants: 3,603 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Older age is associated with increased HAD in this HIV-1 cohort. 2 key findings →
Design: cross-sectional Participants: 106 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Distinct associations between different traffic noise exposures and incident dementia subtypes were found in this large UK prospective cohort study. 3 key findings →
Design: cohort study Participants: 502,416 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Cerebral microbleeds (CMBs) are increasingly recognised neuroimaging findings in individuals with cerebrovascular disease and dementia, and in normal ageing. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
A projected 450,000 older Americans with AD will die in 2013, and a large proportion will die as a result of complications of AD. 1 key finding →
Participants: 200,000 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The data suggest that engagement in leisure activities may reduce the risk of incident dementia, possibly by providing a reserve that delays the onset of clinical manifestations of the disease. 4 key findings →
Participants: 1,772 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The prevalence of dementia increases exponentially with age. 1 key finding →
Participants: 7,528 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
Delirium is a frequent complication in older ICU patients and often persists beyond their ICU stay. 3 key findings →
Design: cohort study Participants: 45 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Of 736 patients (245 [33%] female, mean age 68·0 years [SD 11·2], median admission National Institutes of Health Stroke Scale (NIHSS) 3 [IQR 1-5]), 557 (76%) were followed up until death or the end of the study, and 706 (96%) contributed to the PSD analysis. 5 key findings →
Design: prospective cohort Participants: 736 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
This study included 1526 early adult-life (mean [SD] age, 36.7 [4.7] years; 821 [53.8%] female), 1943 midlife (mean [SD] age, 54.0 [5.8] years; 1010 [52.0%] female), and 885 late-life (mean [SD] age, 71.0 [4.5] years; 473 [53.4%] female) participants. 5 key findings →
Design: cohort study Participants: 1,526 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The overall age and sex standardized incidence decreased between 2015 and 2021 from 3.5% to 2.8%. 2 key findings →
Design: cohort Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Using exome sequencing, we identified a p.R191Q amino acid change in the valosin-containing protein (VCP) gene in an Italian family with autosomal dominantly inherited amyotrophic lateral sclerosis (ALS). 1 key finding →
Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Worldwide costs of dementia are enormous and still inequitably distributed. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease (AD) is characterized by two molecular pathologies: cerebral β-amyloidosis in the form of β-amyloid (Aβ) plaques and tauopathy in the form of neurofibrillary tangles, neuritic plaques, and neuropil threads. 5 key findings →
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.
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