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
28,180 Alzheimer's and dementia studies in plain English, each scored out of 100.
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
Emerging digital tools have the potential to enable a new generation of qualitative and quantitative assessment of cognitive performance. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We describe 56 novel autosomal dominant early-onset Alzheimer disease (ADEOAD) families with PSEN1, PSEN2, and AβPP mutations or duplications, raising the total of families with mutations on known genes to 111 (74 PSEN1, 8 PSEN2, 16 AβPP, and 13 AβPP duplications) in the French series. 4 key findings →
Evidence: low
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The SorLA protein, encoded by the Sortilin-related receptor 1 ( SORL1 ) gene, is a major player in Alzheimer’s disease (AD) pathophysiology. 4 key findings →
Participants: 30 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
It is not associated with the presence of the APOE -ε4 allele whereas possibly linked to aging, female sex, Hispanic ethnicity and some genetic variants of the chitinase-3-like 1 locus. 2 key findings →
Evidence: low
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The amyloid precursor protein (APP) is cleaved by β- and γ-secretases to generate the β-amyloid (Aβ) peptides, which are present in large amounts in the amyloid plaques of Alzheimer disease (AD) patient brains. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Early isolated functional disruptions in salience/visual networks were present in asymptomatic carriers, along with anterior cingulate gray matter reductions. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Cognitively impaired patients with negative biomarkers of amyloidosis but with neurochemical evidence of Tau pathophysiology or neurodegeneration or both are classified as "suspected non-Alzheimer pathophysiology" (SNAP), according to the 2018 research framework for a biological definition of Alzheimer's disease (AD). 4 key findings →
Participants: 99 Evidence: low
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Positron emission tomography (PET) imaging of brain amyloid beta is now clinically available in several countries including the United States and the United Kingdom, but not Canada. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We found 5 distinct clusters of subjects (N=38, N=16, N=24, N=14, N=21) with a composition statistically independent from that obtained using available clinical diagnostic criteria (each cluster included all phenotypical groups). 3 key findings →
Participants: 20 Evidence: moderate
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The genetic architecture of sporadic Early-Onset Alzheimer Disease (sEOAD, onset ≤65 years) remains largely unknown. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
In total, 24 recommendations were developed covering the research landscape and priorities within research in AD following a possible approval, potential impact on health care systems and diagnostic pathways, and communication to patients about anti-amyloid antibodies. 5 key findings →
Evidence: low
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Phenoconverters had higher FW in the NBM and posterior SN. 5 key findings →
Evidence: low
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We dissociated four key cognitive components underlying remote thinking: spontaneous associative thinking, inhibition of unoriginal responses, intentional remote associative thinking, and verbal initiation; and replicated them in three independent datasets. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Caspase cleaved amyloid precursor protein (APPcc) and SET are increased and mislocalized in the neuronal cytoplasm in Alzheimer Disease (AD) brains. 1 key finding →
Evidence: low
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Cerebral small vessel disease (cSVD) is a major contributor to stroke, dementia, and cognitive decline. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
A descriptive study using a transversal national online survey to evaluate the prevalence and characteristics of behavioral and psychological symptoms (BPSD) of dementia with Lewy bodies (DLB), and specifically, the perpetration of violent acts against primary caregivers. 196 responses, obtained in one month, were analyzed. 5 key findings →
Evidence: low
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Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Cerebral small vessel disease can manifest as vascular dementia, typically associated with vascular risk factors or cerebral amyloid angiopathy, and more rarely associated with hereditary conditions. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Stroke and dementia are leading causes of death and disability worldwide, requiring enhanced preventive strategies. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Blood biomarkers are increasingly used to support the diagnosis and monitoring of neurodegenerative diseases. 4 key findings →
Design: cross-sectional Participants: 5,123 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
ObjectiveTo determine whether a multi-trait polygenic profile for dementia is associated with dementia- and disability-free survival in middle-aged and older adults. 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
White matter hyperintensities (WMH), a key MRI-marker of cerebral small vessel disease (cSVD), are common in older adults and associated with an increased risk of stroke and dementia. 5 key findings →
Participants: 46,944 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 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 →