The final cohort comprised 52 patients, 30 of whom met basic PPA criteria. 5 key findings →
Participants: 52 Evidence: moderate
Full summary, score breakdown and related studies → Original source
27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
The final cohort comprised 52 patients, 30 of whom met basic PPA criteria. 5 key findings →
Participants: 52 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Dementia with Lewy bodies (DLB) is pathologically characterized by α-synuclein aggregates in the brain. 1 key finding →
Participants: 22 Evidence: low
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The APOE-ε4 allele correlates with increased risk of Alzheimer disease (AD) and increased parenchymal amyloid plaques. 3 key findings →
Participants: 22 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
PICALM, a clathrin adaptor protein, plays important roles in clathrin-mediated endocytosis in all cell types. 4 key findings →
Evidence: low
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The relationship between PP and CSF biomarkers is age-dependent and observed only in participants in the fifth and sixth decades of life. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Mild cognitive impairment (MCI) is an intermediate stage in the trajectory from normal cognition to dementia. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Biomarkers can be used to independently predict coincident AD and DLB pathology, a common finding in amnestic MCI and DAT patients. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The results suggest that (11)C-PIB binding to Aβ deposits in transgenic mouse brain is highly dependent on the AD model and the structure of its Aβ plaques. 2 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Multiple reasons contribute to the institutionalization for people with dementia, with several factors that may influence why there were country differences. 3 key findings →
Design: cross-sectional Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Frontotemporal dementia, a heterogeneous neurodegenerative disorder, is a common cause of young onset dementia (i.e. dementia developing in midlife or earlier). 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Overall, MMSE scores exhibited ceiling effects, poor test-retest reliability, limited sensitivity to subtle brain abnormalities, and a high rate of intrusion elsewhere in the neuropsychological battery. 5 key findings →
Participants: 99 Evidence: low
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The purpose of the study was to provide characterization of Mexican Americans who meet criteria for Alzheimer's disease (AD) and mild cognitive impairment (MCI). 3 key findings →
Participants: 633 Evidence: low
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Incidence rates of cognitive impairment and dementia are rising with the ageing population. 1 key finding →
Evidence: low
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Fibrillar deposits of highly phosphorylated tau are a key pathological feature of several neurodegenerative tauopathies including Alzheimer's disease (AD) and some frontotemporal dementias. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease (AD) is a devastating disorder of increasing prevalence in modern society. 2 key findings →
Participants: 86 Evidence: low
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Microglia are resident macrophages of the central nervous system (CNS) that display high functional similarities to other tissue macrophages. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The subject groups for model derivation comprised 80 healthy subjects (HS), 36 patients with mild cognitive impairment (MCI) who converted to AD dementia within 18 months, 85 non-converter MCI patients who did not convert within 24 months, and 67 AD dementia patients with baseline FDG PET scan were recruited from the AD Neuroimaging Initiative (ADNI) database. 4 key findings →
Participants: 36 Evidence: moderate
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The aim of this study was to establish a link between periodontal disease and Alzheimer's disease (AD) with a view to identifying the major periodontal disease bacteria (Treponema denticola, Tannerella forsythia, and Porphyromonas gingivalis) and/or bacterial components in brain tissue from 12 h postmortem delay. 4 key findings →
Evidence: low
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He has even given a threshold outlining when the practice of medicine ends versus when the practice of unethical, non–institutional review board approved research begins. 4 key findings →
Design: randomized controlled trial Evidence: high
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Several reviews have summarized the prevalence of dementia in mainland China, Hong Kong and Taiwan. 4 key findings →
Design: meta-analysis Evidence: high
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Classical immunohistochemical studies in the Alzheimer disease (AD) brain reveal prominent glial reactions, but whether this pathological feature is due primarily to cell proliferation or to a phenotypic change of existing resting cells remains controversial. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
A definitive trial to test the critical window hypothesis is not feasible. 2 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
The characteristics of dementia relating to excessive alcohol use have received increased research interest in recent times. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
To evaluate the efficacy of cognitive rehabilitation therapies (CRTs) for mild cognitive impairment (MCI). 4 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Substantial heterogeneity in the design of included studies limits the ability to prognosticate for individual patients. 3 key findings →
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 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 →