A total of 2369 caregivers participated in the survey. 5 key findings →
Design: cross-sectional Participants: 2,369 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.
A total of 2369 caregivers participated in the survey. 5 key findings →
Design: cross-sectional Participants: 2,369 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Occupational noise exposure accounts for approximately 16% of all disabling hearing losses, but the true value and societal costs may be grossly underestimated because current regulations only identify hearing impairments in the workplace if exposures result in audiometric threshold shifts within a limited frequency region. 3 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 affecting elderly people. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Down syndrome (DS) is one of the most frequent genetic abnormalities characterized by multiple pathological phenotypes. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Numerous investigations point to the importance of oxidative imbalance in mediating AD pathogenesis. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
A number of studies reported that oxidative and nitrosative damage may be important in the pathogenesis of Alzheimer's disease (AD). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Chronic psychological stress is one of the most important triggers and environmental risk factors for neuropsychiatric disorders. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
In this review, we focus on the emerging roles of microglia in the brain, with particular attention to synaptic plasticity in health and disease. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
This EEG study investigates the role of the cholinergic system, cortico-cortical connections, and sub-cortical white matter on the relationship between individual EEG frequencies and their relative power bands. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Our results will provide new evidence of the efficacy of an innovative multi-component intervention integrating IVR and telemedicine in SCD individuals. 2 key findings →
Participants: 75 Evidence: high
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The aim of this study is to validate the Italian version of the Pittsburgh Sleep Quality Index (PSQI), comparing five different groups of individuals (healthy young and elderly, sleep apnoea syndrome patients, depressed patients, individuals with dementia) by both questionnaire scores and polysomnographic measures. 4 key findings →
Evidence: low
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Down syndrome (DS) is the most frequent genetic cause of intellectual disability characterized by the presence of three copies of chromosome 21 (Chr21). 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Accumulation of oxidative damage is a common feature of neurodegeneration that, together with mitochondrial dysfunction, point to the fact that reactive oxygen species are major contributors to loss of neuronal homoeostasis and cell death. 5 key findings →
Evidence: low
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The mammalian target of rapamycin (mTOR) is a serine/threonine protein kinase involved in the regulation of protein synthesis and degradation, longevity and cytoskeletal formation. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Dysregulation of insulin signaling pathway with reduced downstream neuronal survival and plasticity mechanisms is a fundamental abnormality observed in Alzheimer's disease (AD) brain. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Increasing evidences support the notion that the impairment of intracellular degradative machinery is responsible for the accumulation of oxidized/misfolded proteins that ultimately results in the deposition of protein aggregates. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Oxidative damage is a feature of many age-related neurodegenerative diseases, including Alzheimer's disease (AD). 4-Hydroxy-2-nonenal (HNE) is a highly reactive product of the free radical-mediated lipid peroxidation of unsaturated lipids, particularly arachidonic acid, in cellular membranes. 2 key findings →
Evidence: low
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Significant correlations emerged between higher MEDAS scores and BMI (r = −0.53, p < 0.01), FM% (r = −0.49, p < 0.01), VAT (r = −0.63, p < 0.01), and cIMT (r = −0.88, p < 0.01). 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
A major challenge in neurobiology is the identification of the mechanisms by which protein misfolding leads to cellular toxicity. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Previous studies indicated increased levels of protein oxidation in brain from subjects with Alzheimer's disease (AD), raising the question of whether oxidative damage is a late effect of neurodegeneration or precedes and contributes to the pathogenesis of AD. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Few diseases are characterized by high homocysteine (HCY) and low folate and vitamin B12 blood levels. 4 key findings →
Evidence: low
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The amyloid precursor protein (APP) and its proteolytic product amyloid beta (Abeta) are associated with both familial and sporadic forms of Alzheimer disease (AD). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Down syndrome (DS) is the most common genetic cause of intellectual disability, due to partial or complete triplication of chromosome 21. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Disturbance of the polyubiquitinylation machinery may be a key feature of aging and neurodegeneration. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Dysregulation of brain insulin signaling with reduced downstream neuronal survival and plasticity mechanisms are fundamental abnormalities observed in Alzheimer disease (AD). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
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 →