28,180 Alzheimer's and dementia studies in plain English, each scored out of 100.
In analyses of APOE ε4 carriers, dosage, and genetic risk score, APOE ε4 was associated with lower odds of fluctuating cognition and parkinsonism and higher odds of visual hallucinations. 5 key findings →
Evidence: low
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Employing the random-effects IVW approach, we found that, as indicated by GrimAge, EAA was associated with an increased risk of AD (Odds Ratio [OR] = 1.025, 95% Confidence Interval [CI]: 1.006-1.044, p = 0.009). 5 key findings →
Participants: 63,926 Evidence: low
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Using a 2-sample Mendelian randomization (MR) approach, we evaluated MR evidence for genetically proxied effects of 10 pre-specified gut bacterial classes on type 2 diabetes mellitus (T2DM) and Alzheimer disease (AD), and assessed MR evidence for a direct genetically proxied effect of T2DM on AD. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
While the β-secretase BACE1 is responsible for the rate-limiting initial step to generate amyloid-β (Aβ) peptides, BACE1 inhibitor clinical trials have been halted due to a lack of efficacy and/or safety concerns at symptomatic/prodromal stages of Alzheimer's disease (AD). 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The rising global prevalence of Alzheimer's disease (AD) and mild cognitive impairment (MCI) underscores the urgent need to elucidate their underlying pathogenic mechanisms. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
These findings highlight hippocampal atrophy as a key pathway linking Aβ burden to cognitive impairment. 4 key findings →
Evidence: moderate
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Alzheimer’s disease (AD) is the most prevalent neurodegenerative disease without effective treatments. 1 Extracellular amyloid plaques, neurofibrillary tangles, neuroinflammation, and neuronal loss are the characteristics of AD neuropathology. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Missense mutations in the amyloid precursor protein (APP) and presenilin-1 (PSEN1) cause early-onset familial Alzheimer’s disease (FAD) and alter proteolytic production of secreted 38-to-43-residue amyloid β-peptides (Aβ) by the PSEN1-containing γ-secretase complex, ostensibly supporting the amyloid hypothesis of pathogenesis. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We sequenced a total of 38,577 nuclei and detected an average of 2,700 genes per cell. 5 key findings →
Participants: 38,577 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We observed two promising biomarkers of AD, mLOY and APR, both contribute discriminating AD and CI but differently. 5 key findings →
Participants: 30 Evidence: low
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The first search utilized the following MeSH terms and keywords: ‘Plasma Exchange’, ‘Plasmapheresis’, ‘Therapeutic plasma exchange’, ‘Apheresis’, ‘Aβ’, ‘p-tau’, ‘Total-tau’, ‘Alzheimer's disease’, ‘Cognitive dysfunction’, ‘neurodegenerative diseases’, ‘centrifugation’, ‘membranous’, and ‘filtration’ in the Title/Abstract, yielding 146 results. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
value = 0.04). ε4 on cognition is mediated by structural brain imaging markers, driven mainly by cerebral microbleeds. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Several reports confirmed possible inadvertent iatrogenic intracranial transmission of Aβ pathology via medical and surgical procedures (1,2).A common molecular mechanism, described in prion diseases, is proposed to trigger the replication and spread of different misfolded proteins in the central nervous system (CNS), causing different neurodegenerative diseases associated with disease-specific proteins such as α-synuclein in Parkinson's disease, and amyloid-beta (Aβ) in Alzheimer's disease, and cerebral amyloid angiopathy (CAA) (3). 5 key findings →
Participants: 125 Evidence: low
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Cerebral amyloid angiopathy (CAA) is an extremely common pathology of Alzheimer's disease (AD) included under vascular contributions to cognitive impairment and dementia (VCID). 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Synaptic loss in the (para)hippocampus is a major contributor to cognitive decline in Alzheimer's disease (AD), yet its regional specificity and pathological correlates remain poorly understood. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The phosphatase and tensin homologue deleted on chromosome 10 (PTEN) negatively regulates intracellular levels of PIP3 and antagonizes the PI3K signaling pathway important for cell survival. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Previous studies have described altered expression of metallothioneins (MTs) in neurodegenerative diseases like multiple sclerosis (MS), Down syndrome, and Alzheimer's disease (AD). 3 key findings →
Evidence: low
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The aim of this study was to compare brain glial fibrillary acidic protein (GFAP) levels to the modifications of cognitive functions (Blessed test score [BTS]), the density of the main neuropathological lesions (senile plaques [SP] and neurofibrillary tangles [NFT]), and the density of the two main subtypes of beta A4 deposits (classic plaques and diffuse deposits) in a series of patients with normal aging and senile dementia of the Alzheimer type of various degrees of severity. 3 key findings →
Evidence: low
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The apolipoprotein E genotype (APOE) is an established risk factor for Alzheimer disease, with the age-at-onset occurring earlier in individuals having at least one APOE epsilon 4 allele, relative to the APOE epsilon 3 or APOE epsilon 2 isoforms. 2 key findings →
Evidence: low
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The frequency of the epsilon 4 allele of the apolipoprotein E (apoE) is increased in familial and sporadic late-onset Alzheimer's disease, but its prevalence in non-Alzheimer dementias in Caucasian populations is unknown. 1 key finding →
Evidence: low
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Alzheimer disease (AD) is a heterogeneous and progressive neurodegenerative disease, which in Western society mainly accounts for senile dementia. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The objective of this study was to evaluate the effect of apolipoprotein E (APOE) epsilon 4 allele on regional cerebral perfusion (rCBF) changes using arterial spin labeling (ASL) magnetic resonance imaging (MRI) in subjects who are carriers or noncarriers of this risk factor for Alzheimer disease (AD). 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
The amyloid precursor protein (APP) gene codes for the precursor to the beta-protein found in the amyloid deposits of Alzheimer disease (AD). 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
We identified by a monoclonal antibody-based immunoradiometric assay high concentrations of an exocrine pancreatic protein called pancreatic thread protein (PTP) in several areas of Alzheimer disease (AD) brain. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
A large number of familial Alzheimer disease (FAD) kindreds were examined to determine whether mutations in the amyloid precursor protein (APP) gene could be responsible for the disease. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
10 of the 1,353 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.
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 →