Arthritis includes approximately 100 conditions that affect the joints and surrounding tissues. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Arthritis includes approximately 100 conditions that affect the joints and surrounding tissues. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Twenty-two primary studies were included. 4 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Recently-developed blood markers for Alzheimer’s (AD) detection have high accuracy but usually require ultra-sensitive analytic tools not commonly available in clinical laboratories. 4 key findings →
Participants: 136 Evidence: moderate
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Alzheimer’s disease (AD) pathology including amyloid beta (Aβ) plaques and tau tangles accumulate with age in Down Syndrome (DS). 4 key findings →
Evidence: low
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Individuals with Down syndrome (DS) display developmental delay, intellectual disability, premature brain ageing, and an increased risk of Alzheimer-like neurodegeneration. 4 key findings →
Evidence: low
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Alzheimer's disease progresses heterogeneously across diverse cohorts, yet current predictive models fail to capture this complexity while remaining clinically interpretable. 4 key findings →
Design: longitudinal study Participants: 1,669 Evidence: moderate
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Alzheimer’s disease manifests through heterogeneous progression patterns across diverse populations, yet current predictive models fail to capture this complexity while maintaining clinical interpretability. 4 key findings →
Design: longitudinal study Participants: 1,669 Evidence: moderate
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Adults with Down syndrome carry high risk of developing Alzheimer’s disease and efforts to include this population in clinical trials remain limited. 4 key findings →
Design: longitudinal study Participants: 237 Evidence: moderate
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Adults with Down syndrome (DS) are at risk for Alzheimer’s disease (AD). 4 key findings →
Design: cohort study Participants: 167 Evidence: moderate
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Since its first description in 1906 by Dr. Alois Alzheimer, Alzheimer’s disease (AD) has been the most common type of dementia. 4 key findings →
Evidence: low
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The anterior thalamic nuclei are important for cognition, and memory in particular. 4 key findings →
Evidence: low
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By age 40 years over 90% of adults with Down syndrome (DS) have Alzheimer’s disease (AD) pathology and most progress to dementia. 4 key findings →
Evidence: low
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As a model of early fetal brain development in Down syndrome, this study examines cortical organoids generated from isogenic trisomic and disomic iPSC lines. 4 key findings →
Evidence: low
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Intellectual disability (ID) found in Down syndrome (DS), which is characterized by an extra copy of 234 genes on Chr21 is poorly understood. 4 key findings →
Evidence: low
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Dementia with Lewy bodies (DLB) and Parkinson's Disease (PD) are common causes of motor and cognitive deficits and are associated with the abnormal accumulation of alpha-synuclein (α-syn). 4 key findings →
Evidence: low
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This study supports the notion that defects in the autophagy pathway and more specifically in mTor and Atg7 are associated with neurodegeneration in DLB cases and alpha-synuclein transgenic models and supports the possibility that modulators of the autophagy pathway might have potential therapeutic effects. 5 key findings →
Evidence: low
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Directed conversion of mature human cells, as from fibroblasts to neurons, is of potential clinical utility for neurological disease modeling as well as cell therapeutics. 2 key findings →
Evidence: low
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Although large numbers of microRNAs (miRNAs) expressed in Alzheimer disease (AD) have been detected, their functions and mechanisms of regulation remain to be fully clarified. 4 key findings →
Evidence: low
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Blood-based biomarkers for Alzheimer’s disease (AD) have been widely studied, but direct comparisons of several biomarkers in clinical settings remain limited. 4 key findings →
Design: cross-sectional Participants: 197 Evidence: moderate
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Alzheimer disease (AD) is a heterogeneous disease with many genes are associated with AD risk. 4 key findings →
Participants: 360 Evidence: low
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There is high unmet need in dementia with Lewy bodies (DLB). 4 key findings →
Participants: 159 Evidence: high
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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
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These aggregated proteins contribute to the pathological and clinical heterogeneity of AD and are associated with a more rapid progression. 4 key findings →
Participants: 1,304 Evidence: low
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Increasing evidence suggests that accurate prediction of Alzheimer’s disease (AD) symptom onset requires more than amyloid- and tau-centric biomarkers such as cerebrospinal fluid (CSF) Aβ42/40, total tau and p-tau181 and plasma p-tau217. 4 key findings →
Participants: 484 Evidence: low
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In neurodegenerative diseases, the diagnostic value of α-synuclein seed amplification assay (αSAA) in routine clinical practice and its relationship with cognitive performance and fluid biomarkers remains incompletely characterized. 4 key findings →
Participants: 398 Evidence: moderate
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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.
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 →