27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Lower Aß-42 levels were associated with a reported decline in memory and language abilities, and with the following SCD-plus features: onset of subjective decline within 5 years, confirmation of cognitive decline by an informant, and decline-related worries. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
In Alzheimer's disease, tau pathology spreads hierarchically from the inferior temporal lobe throughout the cortex, ensuing cognitive decline and dementia. 4 key findings →
Participants: 55 Evidence: low
Full summary, score breakdown and related studies → Original source
PET amyloid levels were consistent with sparse-to-no neuritic amyloid-β plaques in 51% of patients after 2 years of therapy. 3 key findings →
Design: clinical trial Participants: 89 Evidence: low
Full summary, score breakdown and related studies → Original source
The assay had a reportable range of 100 to 25000 pg/mL, a limit of quantification of 100 pg/mL, recoveries between 93% and 111%, and intraassay and interassay CV <15% for both peptides. 4 key findings →
Participants: 102 Evidence: low
Full summary, score breakdown and related studies → Original source
We found brain volume reduction in the bilateral temporal, amygdala, parahippocampal and lower parietal lobe and left cingulate and precuneus regions (family-wise error, p < 0.05). 4 key findings →
Participants: 162 Evidence: low
Full summary, score breakdown and related studies → Original source
Cerebrospinal fluid (CSF) amyloid-β (Aβ)42 and tau are biomarkers for Alzheimer's disease (AD); however, the effects of other neurodegenerative processes on these biomarkers remain unclear. 2 key findings →
Participants: 213 Evidence: low
Full summary, score breakdown and related studies → Original source
This article describes the protocol for the Systematic Multi-domain Alzheimer's Risk Reduction Trial (SMARRT), a single-blind randomized pilot trial to test a personalized, pragmatic, multi-domain Alzheimer's disease (AD) risk reduction intervention in a US integrated healthcare delivery system. 1 key finding →
Evidence: high
Full summary, score breakdown and related studies → Original source
Moderate/severe hearing loss was significantly associated with lower composite z score in males (β = -28.67, 95% confidence interval [95% CI] = -57.13 to -0.20) but not in females (β = -8.82, 95% CI = -36.61 to 18.96). 3 key findings →
Participants: 655 Evidence: low
Full summary, score breakdown and related studies → Original source
Patients were seen in an 18-month time frame (n = 159). 5 key findings →
Participants: 159 Evidence: low
Full summary, score breakdown and related studies → Original source
According to the network model of neurodegeneration, the spread of pathogenic proteins occurs selectively along connected brain regions. 2 key findings →
Participants: 63 Evidence: low
Full summary, score breakdown and related studies → Original source
Although clinical routine focuses on dichotomous and visual interpretation of amyloid PET, regional image assessment in research settings may yield additional opportunities. 5 key findings →
Design: cross-sectional Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The progressive decrement of neuropsychological performance is associated with HVL long before the emergence of clinically overt symptoms. 4 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
This study provides evidence to support that high Lp(a) concentrations was causally associated with an increased risk of large artery stroke but a decreased risk of small vessel stroke and Alzheimer disease. 5 key findings →
Participants: 696 Evidence: low
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Alzheimer's disease is the leading cause of dementia. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease (AD) is the most common form of dementia and it is characterized by the deposition of amyloid-β (Aβ) plaques and neurofibrillary tangles in the brain. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Parkinson's disease (PD) and frontotemporal dementia/amyotrophic lateral sclerosis (FTD/ALS) are insidious and incurable neurodegenerative diseases that represent a significant burden to affected individuals, caregivers, and an ageing population. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Caregiving intensity is related to health for non-Latino White CGs and African American dementia CGs. 1 key finding →
Participants: 667 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Electroencephalographic (EEG) recordings generate an electrical map of the human brain that are useful for clinical inspection of patients and in biomedical smart Internet-of-Things (IoT) and Brain-Computer Interface (BCI) applications. 1 key finding →
Evidence: low
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Our findings indicate a general agreement among professional stakeholders on the ethical promises and challenges raised by the use of IATs among older and disabled users. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Computerized clinical decision support systems can help to provide objective, standardized, and timely dementia diagnosis. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Providing peer-support groups using telehealth may have the potential to develop self-sustaining peer networks for isolated caregivers of people with dementia. 1 key finding →
Participants: 28 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
The mechanisms of action of the dietary components of the Mediterranean diet are reviewed in prevention of cardiovascular disease, stroke, age-associated cognitive decline and Alzheimer disease. 5 key findings →
Evidence: low
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Current brain spheroids or organoids derived from human induced pluripotent stem cells (hiPSCs) still lack a microglia component, the resident immune cells in the brain. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
A promising new therapeutic target for the treatment of Alzheimer's disease (AD) is the circadian system. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
One of the largest unmet medical needs is a disease-modifying treatment for Alzheimer's disease (AD). 4 key findings →
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 27,380 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 →