Alpha-synuclein (α-Syn) is a key protein involved in Parkinson's disease (PD) pathology. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
27,780 Alzheimer's and dementia studies in plain English, each scored out of 100.
Alpha-synuclein (α-Syn) is a key protein involved in Parkinson's disease (PD) pathology. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Isoprostanes and prostaglandins are biomarkers for oxidative stress and inflammation. 4 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
RBC DHA was associated with a positive (improved) global cognition (PACC) rate of change (estimate: 0.011; 95% CI: 0.001, 0.021; P = 0.024). 5 key findings →
Design: longitudinal study Participants: 323 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
We recruited 1501 participants (304 with FTLD, 512 with AD, and 685 healthy controls) from the Multi-Partner Consortium to Expand Dementia Research in Latin America (ReDLat). 5 key findings →
Participants: 1,501 Evidence: low
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The DABNI cohort included 1,135 participants with a mean age of 42.82 years (SD = 11.56), 46.3% of whom are female. 5 key findings →
Design: longitudinal study Participants: 1,135 Evidence: moderate
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Among the more than 90 identified genetic risk loci for late-onset Alzheimer's disease (AD) and related dementias, the apolipoprotein E (APOE) gene ɛ2/ɛ3/ɛ4 polymorphisms remain the longstanding benchmark for genetic disease risk with a consistently large effect across studies 1-10 . 5 key findings →
Design: case-control Evidence: high
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Although exact causes of Parkinson disease (PD) remain enigmatic, mitochondrial dysfunction is increasingly appreciated as a key determinant of dopaminergic neuron susceptibility in both familial and sporadic PD. 3 key findings →
Evidence: low
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Primary sclerosing cholangitis (PSC) is an immune-mediated cholestatic liver disease for which pharmacological treatment options are currently unavailable. 4 key findings →
Evidence: low
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Pilot studies applying a humanoid robot (NAO), a pet robot (PARO) and a real animal (DOG) in therapy sessions of patients with dementia in a nursing home and a day care center. 4 key findings →
Design: clinical trial Participants: 101 Evidence: low
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A total of 101 FTD patients (64 ± 8 years, 53 men), 230 AD patients (65 ± 10 years, 84 men), and 173 CTR (59 ± 15 years, 67 men) were studied. 5 key findings →
Design: cross-sectional Participants: 101 Evidence: moderate
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BIOFACE is a two-year study of clinical, cognition, and biomarkers that will shed light on the physiopathology and the potential utility of plasma and NPEs as non-invasive early diagnostic and prognostic biomarkers in people younger than 65 years. 1 key finding →
Evidence: moderate
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Participation rates were good in both phases of the NEDICES baseline study, and this was influenced by age, sex and setting of the participants. 2 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Preventing dementia and Alzheimer's disease (AD) is a global priority. 2 key findings →
Design: narrative review Evidence: low
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Cardiovascular disease risk factors begin in childhood and track into adulthood, increasing the possibility of impaired cardiometabolic health. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
In Alzheimer's disease (AD), a single-nucleotide polymorphism in the gene encoding brain-derived neurotrophic factor (BDNF Val66Met ) is associated with worse impact of primary AD pathology (beta-amyloid, Aβ) on neurodegeneration and cognitive decline, rendering BDNF Val66Met an important modulating factor of cognitive impairment in AD. 5 key findings →
Participants: 149 Evidence: low
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The reanalyzed study population (aged 70 year and above) was composed of Central and North-Eastern Spanish sub-populations obtained from 9 surveys and totaled 12,232 persons and 1,194 cases of dementia (707 of Alzheimer's disease, 238 of vascular dementia). 5 key findings →
Participants: 12,232 Evidence: low
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Chronic neuroinflammation is a hallmark of the onset and progression of brain proteinopathies such as Alzheimer disease (AD) and it is suspected to participate in the neurodegenerative process. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Higher AD-PRS was associated with faster CD in the full clinical cohort and in biomarker subset, independently of APOE genotype. 5 key findings →
Design: longitudinal study Participants: 7,233 Evidence: moderate
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Postoperative delirium (POD) is often under-recognized in clinical practice. 3 key findings →
Participants: 143 Evidence: low
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Understanding how plasma tau biomarkers are influenced by co-pathologies and comorbidities is crucial for their accurate implementation. 3 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Although age remains the main risk factor to suffer Alzheimer's disease (AD) and vascular dementia (VD), type 2 diabetes (T2D) has turned up as a relevant risk factor for dementia. 2 key findings →
Evidence: low
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Poor subjective sleep quality is linked to reduced brain volume and cortical thickness (CTh), but associations with objective sleep measures, particularly regarding sex and AD pathology, remain unclear. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alois Alzheimer first described in a patient "a peculiar severe disease process of the cerebral cortex", people suffering from this pathology have been waiting for a breakthrough therapy. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Additionally, growing evidence suggests that neuroinflammation may modulate the effects of tau spread on cognitive impairment in AD [Peretti, Débora E., et al., Brain 147.12 (2024): 4094‐4104.]. 5 key findings →
Design: longitudinal study Participants: 354 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Plasma biomarkers are promising tools for the screening and diagnosis of dementia in clinical settings. 1 key finding →
Participants: 108 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 27,780 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 27,780 records, built mostly from automated pulls of Europe PMC (61.1% of the library) and OpenAlex (18.3%), 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 →