A candidate gene for the chromosome 1 Alzheimer's disease (AD) locus was identified (STM2).
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27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
A candidate gene for the chromosome 1 Alzheimer's disease (AD) locus was identified (STM2).
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Alzheimer's disease (AD) is the most common cause of progressive intellectual failure in aged humans. 4 key findings →
Evidence: low
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The study reported the cloning of a novel gene (E5-1) encoded on chromosome 1 with sequence similarity to the S182 gene on chromosome 14q24.3. 5 key findings →
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Transgenic FVB/N mice overexpressing human (Hu) or mouse (Mo) Alzheimer amyloid precursor protein (APP695) die early and develop a CNS disorder that includes neophobia and impaired spatial alternation, with diminished glucose utilization and astrogliosis mainly in the cerebrum. 4 key findings →
Evidence: low
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In Alzheimer disease, a combination of genetic predisposition and environmental factors may contribute to changes in beta-amyloid precursor protein (APP) expression, beta-amyloid peptide deposition, and neuronal loss. 4 key findings →
Evidence: low
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The Alzheimer amyloid precursor protein (APP) undergoes complex processing resulting in the production of a 4-kDa amyloid peptide (A beta) which has been implicated in the pathogenesis of Alzheimer's disease. 4 key findings →
Evidence: low
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Phorbol esters, activators of protein kinase C (PKC), regulate the relative utilization of alternative processing pathways for the Alzheimer beta-amyloid precursor protein (beta-APP) in intact cells, increasing the production of nonamyloidogenic soluble beta-APP (s beta-APP) and decreasing that of neurotoxic beta-amyloid (A beta) peptide. 3 key findings →
Evidence: low
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Stimulation of muscarinic m1 or m3 receptors can, by generating diacylglycerol and activating protein kinase C, accelerate the breakdown of the amyloid precursor protein (APP) to form soluble, nonamyloidogenic derivatives (APPs), as previously shown. 4 key findings →
Evidence: low
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The beta-amyloid precursor protein (beta-APP), from which the beta-A4 peptide is derived, is considered to be central to the pathogenesis of Alzheimer disease (AD). 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
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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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Neurodegenerative processes in Alzheimer disease (AD) are thought to be driven in part by the deposition of amyloid beta (A beta), a 39- to 43-amino acid peptide product resulting from an alternative cleavage of amyloid precursor protein. 4 key findings →
Evidence: low
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The Volga German kindreds are a group of seven related families with autosomal dominant early-onset Alzheimer's disease (AD). 1 key finding →
Evidence: low
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Alzheimer disease (AD) is accompanied by a marked loss of acetylcholinesterase (AChE) activity associated with cortical cholinergic axons and cholinoceptive neurons. 4 key findings →
Evidence: low
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In several pedigrees of early onset familial Alzheimer's disease (FAD), point mutations in the beta-amyloid precursor protein (APP) gene are genetically linked to the disease. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
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 →