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
Research
27,780 Alzheimer's and dementia studies in plain English, each scored out of 100.
In mild AD patients aged less than 75 years, the mean age-at-diagnosis of AD in APOE4 carriers was reduced by over 6 years in BCHE-K carriers versus noncarriers. 5 key findings →
Participants: 33 Evidence: low
Full summary, score breakdown and related studies → Original source
Our findings suggest that the proposition that synaptic markers can predict cognitive decline in AD, should be extended to Lewy body diseases. 4 key findings →
Participants: 129 Evidence: low
Full summary, score breakdown and related studies → Original source
Astrocytes contribute to a variety of functions in the brain, including homeostasis, synapse formation, plasticity, and metabolism. 3 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source Full text may need a subscription
The findings provide further in vivo evidence that astrocytosis occurs early in AD, preceding Aβ plaque deposition. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
47/100
ABCA1 (ATP-binding cassette transporter A1) is a major regulator of cholesterol efflux and high density lipoprotein (HDL) metabolism. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Human apolipoprotein E (apoE) has 3 isoforms: apoE2, apoE3, and apoE4. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
47/100
APOE- epsilon 4 and non-epsilon 4 groups did not significantly differ in demographic, mental status, and functional characteristics. 3 key findings →
Participants: 17 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
ABCA1, a cholesterol transporter expressed in the brain, has been shown recently to be required to maintain normal apoE levels and lipidation in the central nervous system. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Aggregation of amyloid-β (Aβ) peptides leads to synaptic disruption and neurodegeneration in Alzheimer disease (AD). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Allelic variation in the apolipoprotein E (APOE) gene is the major risk factor of sporadic Alzheimer disease. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Cerebral amyloid angiopathy (CAA) is associated with apolipoprotein E (APOE gene, apoE protein) polymorphism: current evidence suggests that the epsilon4 allele is a risk factor for the development of CAA and the epsilon2 allele predisposes to hemorrhage. 3 key findings →
Participants: 62 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
47/100
The ATP-binding cassette transporter A7 (ABCA7) has been identified as a susceptibility factor of late onset Alzheimer disease in genome-wide association studies. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
One of the major histopathological hallmarks of Alzheimer's disease (AD) is redundant senile plaques mainly composed of beta-amyloid (Abeta) aggregates. 5 key findings →
Participants: 19 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
These CSF A beta 42 findings are consistent with acceleration by the APOE*4 allele of pathogenic A beta 42 brain deposition starting in later middle age in persons with normal cognition. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
A generally similar pattern of cerebral hypometabolism was detected in APOE epsilon4-positive and -negative patients with Alzheimer disease. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
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
Full summary, score breakdown and related studies → Original source Full text may need a subscription
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
Alzheimer's disease is the leading cause of dementia in the elderly and is defined by two pathological hallmarks; the accumulation of aggregated amyloid beta and excessively phosphorylated Tau proteins. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Genetic variations in promoter sequences that alter gene expression play a prominent role in increasing susceptibility to complex diseases. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Amyloid plaques, a major pathological feature of Alzheimer disease (AD), are composed of an internal fragment of amyloid precursor protein (APP): the 4-kd amyloid-beta protein (Abeta). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
We have recently shown that the Alzheimer disease 40-residue amyloid beta-protein [A beta P-(1-40)] can form cation-selective channels when incorporated into planar lipid bilayers by fusion of liposomes containing the peptide. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
47/100
The formation of beta-amyloid in the brains of individuals with Alzheimer disease requires the proteolytic cleavage of a membrane-associated precursor protein. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Locus ceruleus (LC) degeneration and loss of cortical noradrenergic innervation occur early in Alzheimer's disease (AD). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Peroxisome proliferator activated receptor alpha (PPAR-α) belongs to the family of ligand-regulated nuclear receptors (PPARs). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
From across this tag
10 of the 1,348 studies in this tag, picked by a fixed rule (a hash of each study's address), not by score or date; each page of this list shows a different 10. The same 10 appear here every time.
- Caloric restriction attenuates Abeta-deposition in Alzheimer transgenic models
- Altered brain white matter integrity in healthy carriers of the APOE epsilon4 allele: a risk for AD?
- Aging-related increase in oxidative stress correlates with developmental pattern of beta-secretase activity and beta-amyloid plaque formation in transgenic Tg2576 mice with Alzheimer-like pathology
- Lack of hepatic apoE does not influence early Aβ deposition: observations from a new APOE knock-in model
- APP locus duplication causes autosomal dominant early-onset Alzheimer disease with cerebral amyloid angiopathy
- Widespread activation of calcium-activated neutral proteinase (calpain) in the brain in Alzheimer disease: a potential molecular basis for neuronal degeneration
- Association of low plasma Abeta42/Abeta40 ratios with increased imminent risk for mild cognitive impairment and Alzheimer disease
- Clonal Haematopoiesis Tracks Alzheimer's-like Cortical Atrophy in Community-Dwelling Older Adults
- Effect of apolipoprotein E genotype and diet on apolipoprotein E lipidation and amyloid peptides: randomized clinical trial
- APP antisense oligonucleotides reduce amyloid-β aggregation and rescue endolysosomal dysfunction in Alzheimer's disease
Where “Free full text” comes from
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
How the 0–100 score works — and why some entries are capped
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.
- Journal tier up to 10 pts
- Journal's citation record up to 4 pts
- Study design up to 12 pts
- Strength of evidence up to 5 pts
- Peer-review validation up to 10 pts
- How recent up to 5 pts
- Sample size up to 4 pts
- Effect reported up to 3 pts
- Studied in people up to 3 pts
- Randomised / blinded up to 2 pts
- Times cited up to 7 pts
- Citations per year up to 5 pts
- Impact for its field and year up to 6 pts
- Cited by studies here up to 6 pts
- Still being cited up to 4 pts
- Senior author's track record up to 4 pts
- Institution's track record up to 3 pts
- Multi-centre collaboration up to 3 pts
- Indexed in PubMed up to 2 pts
- Free to read up to 2 pts
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.
What this library is — and isn't
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 →