Alzheimer's disease (AD) is a genetically complex disorder that accounts for the majority of dementia in the elderly population. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
31,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Alzheimer's disease (AD) is a genetically complex disorder that accounts for the majority of dementia in the elderly population. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Variations in many genes linked to sporadic Alzheimer's disease (AD) show abundant expression in microglia, but relationships among these genes remain largely elusive. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Mitochondrial DNA (mtDNA) variants associated with Alzheimer disease (AD) and Parkinson disease (PD) were sought by restriction endonuclease analysis in a cohort of 71 late-onset Caucasian patients. 4 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source Full text may need a subscription
The Dominantly Inherited Alzheimer Network Observational Study (DIAN Obs) is a longitudinal, global cohort study investigating brain aging and autosomal dominant Alzheimer’s disease (ADAD), a rare monogenic form of Alzheimer’s disease (AD). 5 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Dominantly inherited mutations in the genes encoding presenilins (PS) and the amyloid precursor protein (APP) are the major causes of familial Alzheimer's disease (AD). 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The amyloid precursor protein (APP) has been associated with Alzheimer's disease (AD) because APP is processed into the beta-peptide that accumulates in amyloid plaques, and APP gene mutations can cause early onset AD. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Nonalcoholic fatty liver disease (NAFLD) is the most common liver pathology worldwide. 4 key findings →
Evidence: moderate
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We included 1179 CU subjects (n = 474 females (40%), 70.9 ± 4.5 years old) of European descent who had pTau217 and PACC. 5 key findings →
Design: longitudinal study Participants: 474 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Age-related hearing impairment (ARHI) is the most common sensory impairment in the aging population; a third of individuals are affected by disabling hearing loss by the age of 65. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The 39- to 43-amino acid amyloid beta-protein (A beta), which is progressively deposited in cerebral plaques and blood vessels in Alzheimer disease (AD), is secreted by cultured human cells during normal metabolism. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Mutations in the presenilin 1 (PS1) and presenilin 2 (PS2) genes increase the production of the highly amyloidogenic 42-residue form of amyloid beta-protein (Abeta42) in a variety of cell lines and transgenic mice. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Understanding the mechanisms of amyloid-beta protein (Abeta) production and clearance in the brain has been essential to elucidating the etiology of Alzheimer disease (AD). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Late-onset Alzheimer's disease (AD) is a sporadic disorder with increasing prevalence in aging. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Genome-wide association studies have led to numerous genetic loci associated with Alzheimer's disease (AD). 2 key findings →
Participants: 2,247 Evidence: low
Full summary, score breakdown and related studies → Original source
Calbindin-D28k (CB), one of the major calcium-binding and buffering proteins, has a critical role in preventing a neuronal death as well as maintaining calcium homeostasis. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Recent genetic studies on Alzheimer's disease (AD) have brought microglia under the spotlight, as loci associated with AD risk are enriched in genes expressed in microglia. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
A total of 30 variants were overrepresented in four pathways: presenilin/Alzheimer disease, cadherin/WNT signaling, gonadotropin-releasing hormone receptor, and transforming growth factor-β (TGF-β) signaling. 5 key findings →
Participants: 204 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Recent studies indicate that impairments in two cognitive domains characterize the cognitive abnormalities that appear earliest in the course of Alzheimer disease (AD). 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Mouse trisomy 16 has been proposed as an animal model of Down syndrome (DS), since this chromosome contains homologues of several loci from the q22 band of human chromosome 21. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Adults with Down syndrome (DS) have an exceptionally high frequency of Alzheimer disease (AD) with a wide variability in onset, from 40 to 70 years of age. 2 key findings →
Participants: 232 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The patterns of FDG decline are distinct in these 2 genetically determined forms of AD. 1 key finding →
Design: cross-sectional Participants: 76 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Apoptotic pathways and DNA synthesis are activated in neurons in the brains of individuals with Alzheimer disease (AD). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
T2DM is one of the strong risk factors of ADRD but genetic T2DM effect does not contribute to ADRD risk. 3 key findings →
Evidence: moderate
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These findings suggest that OCT can detect functional and morphologic changes in the retina of carriers of familial Alzheimer disease who are cognitively unimpaired several years before clinical onset, suggesting that OCT findings and retinal vascular parameters may be biomarkers prior to the onset of cognitive decline. 4 key findings →
Design: cross-sectional Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We extend prior work using BAG from sporadic AD to ADAD, noting consistent results. 5 key findings →
Evidence: moderate
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 31,380 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 31,380 records, built mostly from automated pulls of Europe PMC (65.6% of the library) and OpenAlex (16.2%), 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.
1,048 records (3.3% of the library) are not peer-reviewed — 973 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 →
Newest studies, as a dated timeline → Atom feed Where this research is being discussed: events