The number of people living with dementia worldwide is growing. 3 key findings →
Design: meta-analysis Participants: 1,636 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
28,180 Alzheimer's and dementia studies in plain English, each scored out of 100.
The number of people living with dementia worldwide is growing. 3 key findings →
Design: meta-analysis Participants: 1,636 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Cerebellar volumetric changes are intricately linked to aging, with distinct patterns across its transverse zones, the functional subdivisions characterized by unique cytoarchitectural and connectivity profiles. 5 key findings →
Participants: 45,000 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
There were 56.9 million people worldwide living with dementia in 2021, according to the Global Burden of Disease study, and this number is projected to exceed 137 million by 2050. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
A total of 43,160 participants were included (mean [standard deviation] age, 64.2 [7.7] years, 53.1 % female). 5 key findings →
Design: cross-sectional Participants: 43,160 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
MASLD was significantly associated with smaller volumes of total grey matter and subcortical grey matter (p < 0.05) and reduced Alzheimer's disease (AD)-signature cortical thickness (multivariable-adjusted β = -0.04; 95% confidence interval [CI]: -0.07, -0.01). 4 key findings →
Design: cross-sectional Participants: 29,195 Evidence: low
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Our findings suggest that possible sarcopenia is a significant and independent predictor of delirium in older patients with acute stroke. 5 key findings →
Design: cohort study Participants: 543 Evidence: moderate
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White matter hyperintensity (WMH), indicative of cerebral small vessel disease, has emerged as a potential biomarker for cognitive decline in Alzheimer's disease (AD). 2 key findings →
Design: cross-sectional Participants: 158 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Considerable data support the presence of both systemic and CNS inflammation in SVD and VCID. 3 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
= 0.028), but not with progression of BG-EPVS or WMHs at follow-up. 5 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Cognitive impairment is common in the first weeks after stroke, with executive and perceptual disorders being the most frequent. 3 key findings →
Participants: 190 Evidence: low
Full summary, score breakdown and related studies → Original source
Astrocytes are a population of cells with distinctive morphological and functional characteristics that differ within specific areas of the brain. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The NBV significantly correlated with all clinical scores (Rankin, NIH Stroke Scale, Barthel, structured interview for the diagnosis of Alzheimer dementia and multi-infarct dementia, Mattis dementia rating scale) at both time points independently of age and sex. 2 key findings →
Design: cross-sectional Evidence: low
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Vascular cognitive impairment (VCI) is predominately caused by vascular risk factors and cerebrovascular disease. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Cerebral small vessel disease (CSVD) is a very common neurological disease in older people. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Type 2 diabetes mellitus (T2DM) is a risk factor for Alzheimer disease (AD). 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Blood pressure and indicators of small-vessel disease in the brain may be associated with atrophy of structures affected by Alzheimer pathology. 4 key findings →
Evidence: low
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CMBs are a common vascular pathology in the elderly. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
This study provides evidence for heterogeneous pathologic substrates and possibly different pathophysiologic mechanisms underlying MRI-observed cortical microbleeds in the context of advanced CAA and Alzheimer disease. 1 key finding →
Evidence: low
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Intracranial atherosclerotic disease (ICAD) is one of the most common causes of stroke worldwide. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Cognitive impairment is highly prevalent among individuals with late-life depression (LLD) and tends to persist even after successful treatment. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Hypertensive pregnancy disorders are associated with worse performance on tests of processing speed and smaller brain volumes decades later. 4 key findings →
Participants: 1,279 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Our data suggest that some degree of blood-brain barrier dysfunction is common in older people and that this may be related to clinical dementia risk, additional to standard MRI biomarkers. 5 key findings →
Participants: 126 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Essential hypertension has devastating effects on the brain, being the major cause of stroke and a leading cause of dementia. 4 key findings →
Evidence: low
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AF contributes to stroke and secondary cognitive decline. 3 key findings →
Participants: 563 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Hypertension affects a significant proportion of the adult and aging population and represents an important risk factor for vascular cognitive impairment and late-life dementia. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
10 of the 904 studies in this tag, 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 28,180 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 28,180 records, built mostly from automated pulls of Europe PMC (61.7% of the library) and OpenAlex (18.1%), 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 →