Mid-life stroke risk factors have been related to late-life cognitive impairment. 4 key findings →
Participants: 1,841 Evidence: moderate
Full summary, score breakdown and related studies → Original source Full text may need a subscription
27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Mid-life stroke risk factors have been related to late-life cognitive impairment. 4 key findings →
Participants: 1,841 Evidence: moderate
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Elevated cerebral Aβ level was associated with cholesterol fractions in a pattern analogous to that found in coronary artery disease. 5 key findings →
Design: cross-sectional Participants: 33 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Despite advances in the clinical characterization of FTD, little is known about its rate of progression. 4 key findings →
Participants: 70 Evidence: low
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Within a heterogenous group of MCI patients, including many with clinically significant CVD, baseline memory and executive performance significantly predicted likelihood to develop dementia. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The association between moderate-severe chronic kidney disease and white matter hyperintensity volume highlights the growing importance of kidney disease as a possible determinant of cerebrovascular disease and/or as a marker of microangiopathy. 5 key findings →
Participants: 615 Evidence: moderate
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The development of common standards represents a first step in a process of use, validation and refinement. 1 key finding →
Evidence: low
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These cross-sectional data provide evidence that tHcy is a risk factor for white matter damage. 1 key finding →
Design: cross-sectional Participants: 259 Evidence: low
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In a previous study of normal elderly male twins, the heritability of quantitative white matter hyperintensity (WMH) volume has been estimated to be high (0.73). 4 key findings →
Participants: 2,012 Evidence: moderate
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Identifying nutrition- and lifestyle-based risk factors for cognitive impairment and dementia may aid future primary prevention efforts. 4 key findings →
Participants: 104 Evidence: moderate
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Aging is associated with reductions in hippocampal volume that are accelerated by Alzheimer's disease and vascular risk factors. 2 key findings →
Participants: 9,232 Evidence: low
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Stepwise decreases in WM integrity as measured by both DTI and FLAIR were independently associated with stepwise increases in WMH risk, emphasizing that these modalities may provide complementary information for understanding the time course of aging-associated WM degeneration. 3 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Mild cognitive impairment (MCI) is a recently described syndrome that is currently thought of as a transition phase between healthy cognitive ageing and dementia. 1 key finding →
Evidence: low
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Cerebral microbleeds (CMBs) are MRI markers attributed to the most common cerebral angiopathies in the elderly and in patients with dementia: hypertensive and cerebral amyloid angiopathy. 4 key findings →
Participants: 85 Evidence: low
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55 of the 152 (36.2 %) aMCI subjects progressed to AD. 3 key findings →
Evidence: low
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FSRP and several cardiovascular risk factors were related to both WMHV measured continuously and to a categorical designation of large volumes of WMH. 3 key findings →
Evidence: moderate
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Quantitative magnetic resonance imaging and neuropsychological evaluations were performed in 1820 dementia- and stroke-free participants from the Framingham Offspring Cohort. 4 key findings →
Evidence: moderate
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The duration and lifetime pattern of hypertension is related to risk of stroke and dementia. 4 key findings →
Participants: 1,686 Evidence: moderate
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Both hippocampal volume and brain infarcts independently contribute to memory performance in elderly individuals without dementia. 4 key findings →
Participants: 658 Evidence: low
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We describe the history, development, and success of the recruitment and screening procedures used by researchers at the University of California, Davis Alzheimer's Disease Center (UCD ADC) to facilitate minority enrollment in research. 5 key findings →
Design: longitudinal study Evidence: moderate
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Metabolic disorders and aging promote accumulation of amylin amyloid in the cerebrovascular system and gray matter, altering microvasculature and tissue structure. 2 key findings →
Evidence: low
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These CSF A beta 42 findings are consistent with acceleration by the APOE*4 allele of pathogenic A beta 42 brain deposition starting in later middle age in persons with normal cognition. 2 key findings →
Evidence: low
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Higher adherence to the MeDi is associated with reduced cerebrovascular disease burden. 3 key findings →
Participants: 46 Evidence: low
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Carotid atherosclerosis markers were associated with MRI indices of brain ischemia and aging and with cognitive impairment in a community-based sample of middle-aged adults. 5 key findings →
Participants: 1,975 Evidence: low
Full summary, score breakdown and related studies → Original source
Neuropathologists assess vast brain areas to identify diverse and subtly-differentiated morphologies. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Cerebrospinal fluid (CSF) and structural magnetic resonance imaging (MRI) show patterns of change in Alzheimer's disease (AD) that precede dementia. 4 key findings →
Evidence: low
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 →