Cotton wool plaques (CWPs) are round lesions that lack a central amyloid core. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Cotton wool plaques (CWPs) are round lesions that lack a central amyloid core. 4 key findings →
Evidence: low
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The genetics of Alzheimer disease (AD) are complex and not completely understood. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Post-translational modification of proteins by the lipid palmitate is critical for protein localization and function. 4 key findings →
Evidence: low
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Genetic deficits and loss of function for the triggering receptor expressed in myeloid cells 2 (TREM2; encoded at chr6p21.1), a transmembrane spanning stimulatory receptor of the immunoglobulin/lectin-like gene superfamily, have been associated with deficiencies in phagocytosis and the innate immune system in Alzheimer's disease. 4 key findings →
Evidence: low
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As in Alzheimer-disease (AD) brain, vacuolated muscle fibers of inclusion-body myositis (IBM) contain abnormally accumulated beta-amyloid precursor protein (beta APP), including its beta-amyloid protein epitope, and increased beta APP-751 mRNA. 4 key findings →
Evidence: low
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A key pathological feature of Alzheimer's disease is the formation and accumulation of amyloid fibres. 4 key findings →
Evidence: low
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Amyloidogenic processing of the amyloid precursor protein (APP) results in the generation of beta-amyloid, the main constituent of Alzheimer plaques, and the APP intracellular domain (AICD). 4 key findings →
Evidence: low
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Activation of astrocytes surrounding amyloid plaques is a hallmark of Alzheimer disease (AD) with consequences yet poorly understood. 4 key findings →
Evidence: low
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Gamma-secretase cleavage of beta-amyloid precursor protein (APP) is crucial in the pathogenesis of Alzheimer disease, because it is the decisive step in the formation of the C terminus of beta-amyloid protein (Abeta). 4 key findings →
Evidence: low
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MicroRNA (miR) dysregulation is found in Alzheimer disease (AD). 4 key findings →
Evidence: low
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Caloric restriction (CR) mitigates neurological damage arising from aging and a variety of other sources, including neuropathology in young adult mice that express single and double transgenic (tg) mutations associated with Alzheimer disease (AD). 4 key findings →
Evidence: low
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Biological effects related to cell growth, as well as a role in the pathogenesis of Alzheimer disease, have been ascribed to the beta-amyloid precursor protein (beta-APP). 4 key findings →
Evidence: low
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A large number of mouse models have been engineered, characterized and used to advance biomedical research in Alzheimer disease (AD). 4 key findings →
Evidence: low
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Alzheimer Disease (AD) is the most common neurodegenerative disorder worldwide, and account for 60% to 70% of all cases of progressive cognitive impairment in elderly patients. 4 key findings →
Evidence: low
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The beta-amyloid precursor protein (APP) represents a type I transmembrane glycoprotein that is ubiquitously expressed. 4 key findings →
Evidence: low
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Growing evidence indicates that the activation of c-Jun N-terminal kinase (JNK) is implicated in the multiple major pathological features of Alzheimer disease (AD). 4 key findings →
Evidence: low
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Until recently, the only established function of acetylcholinesterase (AChE) was the termination of cholinergic neurotransmission. 4 key findings →
Evidence: low
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β-Site amyloid precursor protein cleaving enzyme1 (BACE1) is one of the key enzymes involved in the processing of the amyloid precursor protein (APP) and formation of amyloid β peptide (Aβ) species. 4 key findings →
Design: clinical trial Evidence: low
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γ-Secretase generates amyloid β-protein (Aβ), a pathogenic molecule in Alzheimer disease, through the intramembrane cleavage of the β-carboxyl-terminal fragment (βCTF) of β-amyloid precursor protein. 4 key findings →
Evidence: low
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BACE1 is a membrane-bound aspartic protease that cleaves the amyloid precursor protein (APP) at the beta-secretase site, a critical step in the Alzheimer disease pathogenesis. 4 key findings →
Evidence: low
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Alterations in the Wnt signaling pathway have been implicated in Alzheimer's disease; however, its role in the processing of the amyloid precursor protein remains unknown. 4 key findings →
Evidence: low
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Alzheimer's disease (AD) involves several possible molecular mechanisms, including impaired brain insulin signaling and glucose metabolism. 4 key findings →
Evidence: low
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β-Site amyloid precursor protein (APP) cleaving enzyme 1 (BACE1) is the transmembrane aspartyl protease that catalyzes the first cleavage step in the proteolysis of the APP to the amyloid β-protein (Aβ), a process involved in the pathogenesis of Alzheimer disease. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Studies of processing of the Alzheimer beta-amyloid precursor protein (betaAPP) have been performed to date mostly in continuous cell lines and indicate the existence of two principal metabolic pathways: the "beta-secretase" pathway, which generates beta-amyloid (A beta(1-40/42); approximately 4 kDa), and the "alpha-secretase" pathway, which generates a smaller fragment, the "p3" peptide (A beta(17-40/42); approximately 3 kDa). 4 key findings →
Evidence: low
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Phospholipase A2 (PLA2) is a key-enzyme in the metabolism of membrane phospholipids. 4 key findings →
Participants: 23 Evidence: low
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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 →