27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
The genetic risk score for TL was associated with higher risk of AD [log-odds ratio (OR) = 0.003 for per TL-decreasing allele; 95% confidence interval (CI): 0.001, 0.005, p = 0.005]. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
We identify novel genome-wide significant associations between DNA variants in TMEM106B and CSF levels of NfL, and between CPOX and YKL-40. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Psychiatric disorders are associated with accelerated aging and enhanced risk for neurodegenerative disorders. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
A repeat expansion in the C9orf72 (C9) gene is the most common genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Genetics can provide a systematic approach to discovering the tissues and cell types relevant for a complex disease or trait. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Ninety per cent of the human population has been right-handed since the Paleolithic, yet the brain signature and genetic basis of handedness remain poorly characterized. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Our data indicated that the levels of triglyceride, total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, apolipoprotein A-I (ApoA-I), ApoB, ApoE, lipoprotein (a) (Lp(a)) of mutant genotypes in ApoE c.61G > A and c.761T > A genetic variants were different from those subjects with wild genotype in HD patients and healthy controls. 2 key findings →
Participants: 288 Evidence: low
Full summary, score breakdown and related studies → Original source
Apolipoprotein E type 4 allele (ApoE∊4) is known as a risk gene for the late-onset Alzheimer’s disease, and the relationship between ApoE∊4 and cognitive function of the elderly people has drawn the attention of the scientists. 1 key finding →
Participants: 156 Evidence: low
Full summary, score breakdown and related studies → Original source
Gene therapy to treat hereditary disorders conventionally delivers the normal allele to compensate for loss-of-function mutations. 2 key findings →
Evidence: preliminary
Full summary, score breakdown and related studies → Original source Free full text
Imprinted genes are epigenetically modified genes whose expression is determined according to their parent of origin. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The epsilon(4) allele of APOE confers a two- to fourfold increased risk for late-onset Alzheimer's disease (LOAD), but LOAD pathology does not all fit neatly around APOE. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Apolipoprotein E (apoE) is associated with several classes of plasma lipoproteins and mediates uptake of lipoproteins through its ability to interact with specific cell surface receptors. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Recent data have demonstrated genetic disequilibrium between inheritance of the apolipoprotein E (apoE) epsilon 4 allele and increased risk of Alzheimer disease. 2 key findings →
Evidence: low
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Lewy body disorders (LBD) are common neurodegenerative diseases characterized by the presence of aggregated α-synuclein in Lewy bodies and Lewy neurites in the central and peripheral nervous systems. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Transcriptome-wide association studies (TWASs) have been widely used to integrate gene expression and genetic data for studying complex traits. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The epsilon 4 allele of apolipoprotein E (APOE) has been found to be a risk factor for late-onset Alzheimer's disease (AD). 1 key finding →
Evidence: low
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Alzheimer disease (AD) is characterized by the extracellular accumulation of amyloid β (Aβ), which is accompanied by a robust inflammatory response in the brain. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The results of this study suggest that dyslipidemia increases the risk of plaque-type pathology. 3 key findings →
Evidence: low
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Although apolipoprotein E (ApoE) ε4 is a well-established risk factor for Alzheimer disease, its role in the development of post-stroke cognitive impairment (PSCI) remains uncertain. 4 key findings →
Design: cohort study Evidence: moderate
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Among most Latinos in northern Manhattan who learned they had an APOE ε4/ε4 genotype, disclosure did not provoke elevated levels of distress. 3 key findings →
Participants: 61 Evidence: low
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Sortilin (SORT1) is a lipoprotein receptor that shows genome-wide association with hypercholesterolaemia, explained by its ability to control hepatic output of lipoproteins. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer research has been driven by genetic findings: from the 1990s until about 2005, by the identification of amyloid precursor protein (APP) and presenilin (PSEN) mutations, leading to the formulation of the amyloid hypothesis, and then from ~2007 by genome-wide studies which have led to the increasing appreciation of the importance of microglial insufficiency in the disease pathogenesis. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Analysis of the genotyping data revealed that the TMEM106B locus consists of four major haplotypes: HA/Ha (covering the coding region), and HB/Hb (covering the upstream regulatory region). 5 key findings →
Participants: 182 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer’s disease (AD) is a heterogeneous neurodegenerative disorder in which tau neurofibrillary tangles are a pathological hallmark closely associated with cognitive dysfunction and neurodegeneration. 5 key findings →
Participants: 615 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
No significant associations were found between retinal thickness and AD risk (RNFL: odds ratio [OR]IVW = 1.001, 95% confidence interval [CI] = 0.986-1.017, P = 0.883; GCIPL: ORIVW = 1.008, 95% CI = 0.997-1.019, P = 0.172). 5 key findings →
Design: longitudinal study Participants: 31,434 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 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 →