The term dementia refers to a clinical syndrome of acquired intellectual disturbances produced by brain dysfunction. 4 key findings →
Evidence: low
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 term dementia refers to a clinical syndrome of acquired intellectual disturbances produced by brain dysfunction. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Damaging nonsynonymous ABCA1 variants had differential AD risk effects between APOE genotype groups and exhibited interaction effects with APOE ε2 and ε4. 5 key findings →
Evidence: moderate
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Alzheimer’s disease (AD) is a neurodegenerative disorder characterized by memory loss and cognitive decline, with women being disproportionately affected in both prevalence and severity. 1 key finding →
Evidence: low
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The pathogenesis of HIV-associated cognitive changes is poorly understood. 2 key findings →
Design: clinical trial Evidence: low
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A population of >6 million people worldwide at high risk of Alzheimer’s disease (AD) are those with Down Syndrome (DS, caused by trisomy 21 (T21)), 70% of whom develop dementia during lifetime, caused by an extra copy of β-amyloid-(Aβ)-precursor-protein gene. 4 key findings →
Evidence: low
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Activation of astrocytes surrounding amyloid plaques is a hallmark of Alzheimer disease (AD) with consequences yet poorly understood. 4 key findings →
Evidence: low
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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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We identified several significant sex-specific and sex-dimorphic differentially expressed genes in neurons, microglia, astrocytes and oligodendrocytes, including both cross-sectional changes and alterations from 7 months to 17 months of age. 5 key findings →
Design: cross-sectional Evidence: low
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Alzheimer's disease and related diseases (ADRD) is a progressive and inexorable disease. 2 key findings →
Participants: 120 Evidence: moderate
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The hippocampus, derived from medial regions of the telencephalon, constitutes a remarkable brain structure. 1 key finding →
Evidence: low
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We assessed the regional brain atrophy in mouse lemur primates from 4.7T T2-weighted magnetic resonance images. 3 key findings →
Design: cross-sectional Evidence: low
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The aim of this study was to test whether there is an excess of dementia of Alzheimer type (DAT) cases in Down syndrome (DS) relatives. 1 key finding →
Design: case-control study Evidence: moderate
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Accumulating evidence supports a role of chemokines and their receptors in brain function. 4 key findings →
Evidence: low
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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
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Autophagic markers beclin 1, LC3II and p62, and lysosome-related marker cathepsin B, all upregulated in AD astrocytes, were significantly reduced, while autophagic flux was rescued, by stabilizing 20 nm-MERCS. 3 key findings →
Evidence: low
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Neighborhood deprivation was associated with poorer cognition (r = 0.36, p < 0.001), greater prevalence of modifiable risk factors (r = 0.36, p < 0.001), and greater SVD burden (β = 0.18, p = 0.008). 4 key findings →
Evidence: low
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BC residual was significantly associated with worse cognitive performance. 5 key findings →
Participants: 6,181 Evidence: moderate
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Accurate diagnosis of frontotemporal dementia (FTD) with right anterior temporal lobe (RATL) predominance remains challenging due to lack of clinical characterization, and standardized terminology. 4 key findings →
Evidence: low
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Both LBDs and SPs exhibit distinct visual aberrations, ranging from minor metamorphopsias to complex hallucinations. 5 key findings →
Design: narrative review 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
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Growing evidence highlights sex-related differences in the pathogenesis of Alzheimer's disease (AD). 1 key finding →
Evidence: low
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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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The C9orf72 hexanucleotide repeat expansion mutation is the most common genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia, but its cell type-specific effects on energy metabolism and immune pathways remain poorly understood. 3 key findings →
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
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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 →