48/100
Pathological studies have demonstrated abnormalities in white matter that may appear normal on brain imaging. 3 key findings →
Participants: 429 Evidence: low
Full summary, score breakdown and related studies → Original source
Research
27,780 Alzheimer's and dementia studies in plain English, each scored out of 100.
Enlarged perivascular spaces are associated with age, lacunar stroke subtype and white matter lesions and should be considered as another magnetic resonance imaging marker of cerebral small vessel disease. 3 key findings →
Participants: 298 Evidence: low
Full summary, score breakdown and related studies → Original source
Although internal factors explain most about the poor nutritional status of aged residents in nursing homes, the factors related to nutritional care need further investigation to clarify their role in maintaining the nutritional status of aged residents. 4 key findings →
Design: cross-sectional Evidence: low
Full summary, score breakdown and related studies → Original source
Diabetic patients are at increased risk for stroke, but little is known about the presence of other brain lesions. 3 key findings →
Participants: 1,252 Evidence: low
Full summary, score breakdown and related studies → Original source
Low and high thyrotropin levels were associated with an increased risk of incident AD in women but not in men. 5 key findings →
Participants: 209 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Alzheimer's disease (AD) and vascular dementia (VaD) are the two most common forms of dementia. 1 key finding →
Participants: 800,000 Evidence: low
Full summary, score breakdown and related studies → Original source
This is the first study that focuses on insomnia in stroke patients. 5 key findings →
Participants: 277 Evidence: low
Full summary, score breakdown and related studies → Original source
No differences were found between regions of interest in CAA compared to NC. 4 key findings →
Participants: 21 Evidence: low
Full summary, score breakdown and related studies → Original source
We included 110 patients with CAA (strictly lobar ICHs/CMBs), 33 with HA (strictly deep ICHs/CMBs) and 97 with mixed lobar/deep ICHs/CMBs. 5 key findings →
Participants: 110 Evidence: low
Full summary, score breakdown and related studies → Original source
The glymphatic system, a vital brain perivascular network for waste clearance, hinges on the functionality of the aquaporin 4 (AQP4) water channel. 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
This raises the suggestion that a decreased neurovascular coupling in the disease process of AD is related to comorbid small vessel disease. 2 key findings →
Participants: 119 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Among 1154 participants (46% men, mean age 70.9±8.7 years), 92 (8%) developed stroke over a median follow-up of 8.6 years (Q1-Q3: 5.1-12.5). 5 key findings →
Participants: 1,154 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
=0.002). Early-onset CHD and genetic susceptibility are associated with a higher risk of incident dementia and a larger WMH volume. 2 key findings →
Design: cohort study Participants: 671 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Cerebral small vessel disease (cSVD) is associated with vascular cognitive impairment, dementia, and stroke. 3 key findings →
Design: cross-sectional Participants: 59 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Hyperhomocysteinemia (HHcy) is an established risk factor for cognitive impairment. 2 key findings →
Design: cross-sectional Participants: 507 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The mean age of the participants was 68 ± 9 years and 39% were female. 5 key findings →
Design: post-hoc analysis Participants: 759 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease (AD) and vascular dementia (VaD) exhibit distinct neuropathological hallmarks, with AD defined by cortical amyloid plaques and neurofibrillary tangles, while VaD arises primarily from cerebrovascular disease (CeVD). 4 key findings →
Participants: 531 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
In Reply. —The analyses of Drs Mirra and Gearing indicate that brain infarcts are not associated with NFTs in the neocortex.
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Temporoparietal hypoperfusion on SPECT is common to both AD and DLB. 2 key findings →
Participants: 23 Evidence: low
Full summary, score breakdown and related studies → Original source
The majority of clinical trials of N-methyl d-aspartate antagonists have been conducted in the fields of stroke, traumatic brain injury (TBI) and dementia. 1 key finding →
Participants: 9,000 Evidence: low
Full summary, score breakdown and related studies → Original source
Inflammatory processes may be involved in the pathogenesis of cerebral small-vessel disease, in particular, the development of white matter lesions. 3 key findings →
Participants: 1,033 Evidence: low
Full summary, score breakdown and related studies → Original source
47/100
A 1-minute semantic fluency test can assist in early detection of dementia in the memory clinic setting. 3 key findings →
Participants: 98 Evidence: low
Full summary, score breakdown and related studies → Original source
Growing evidence suggests a consistent association between atrial fibrillation (AF) and cognitive impairment and dementia that is independent of clinical stroke. 1 key finding →
Evidence: high
Full summary, score breakdown and related studies → Original source
Our results suggest that different subcortical areas have different vulnerabilities to ischemia in CADASIL. 4 key findings →
Participants: 75 Evidence: low
Full summary, score breakdown and related studies → Original source
The risk of incident dementia is high among patients with ischemic stroke, particularly in association with intercurrent medical illnesses that might cause cerebral hypoxia or ischemia, suggesting that cerebral hypoperfusion may serve as a basis for some cases of dementia after stroke. 4 key findings →
Design: cross-sectional Evidence: moderate
Full summary, score breakdown and related studies → Original source
Where “Free full text” comes from
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
How the 0–100 score works — and why some entries are capped
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.
- Journal tier up to 10 pts
- Journal's citation record up to 4 pts
- Study design up to 12 pts
- Strength of evidence up to 5 pts
- Peer-review validation up to 10 pts
- How recent up to 5 pts
- Sample size up to 4 pts
- Effect reported up to 3 pts
- Studied in people up to 3 pts
- Randomised / blinded up to 2 pts
- Times cited up to 7 pts
- Citations per year up to 5 pts
- Impact for its field and year up to 6 pts
- Cited by studies here up to 6 pts
- Still being cited up to 4 pts
- Senior author's track record up to 4 pts
- Institution's track record up to 3 pts
- Multi-centre collaboration up to 3 pts
- Indexed in PubMed up to 2 pts
- Free to read up to 2 pts
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 27,780 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.
What this library is — and isn't
This is a large sample of the Alzheimer's literature, not an exhaustive index of it. It holds 27,780 records, built mostly from automated pulls of Europe PMC (61.1% of the library) and OpenAlex (18.3%), 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 (3.7% 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 →