Tau pathology spreads cell to cell, but the mechanisms of intercellular tau transmission remain unclear. 1 key finding →
Evidence: early
Full summary, score breakdown and related studies → Original source Free full text
27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Tau pathology spreads cell to cell, but the mechanisms of intercellular tau transmission remain unclear. 1 key finding →
Evidence: early
Full summary, score breakdown and related studies → Original source Free full text
To analyze the relationship between the deposition of amyloid beta peptides (Abeta) and neuronal loss in transgenic models of Alzheimer's disease (AD), we examined the frontal neocortex (Fc) and CA1 portion of hippocampus (CA1) in PSAPP mice doubly expressing AD-associated mutant presenilin 1 (PS1) and Swedish-type mutant beta amyloid precursor protein (APPsw) by morphometry of Abeta burden and neuronal counts. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Classical immunohistochemical studies in the Alzheimer disease (AD) brain reveal prominent glial reactions, but whether this pathological feature is due primarily to cell proliferation or to a phenotypic change of existing resting cells remains controversial. 1 key finding →
Evidence: low
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Amyloid (senile) plaques, one of the two pathologic hallmarks of Alzheimer disease (AD), are associated with dystrophic neurites and glial responses, both astrocytic and microglial. 5 key findings →
Evidence: low
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Myeloperoxidase, a heme protein expressed by professional phagocytic cells, generates an array of oxidants which are proposed to contribute to tissue damage during inflammation. 4 key findings →
Evidence: low
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CSF T-tau and P-tau as well as the APOE epsilon4/epsilon4 genotype are robust predictors of AD and are also associated with a more rapid progression from MCI to AD. 4 key findings →
Participants: 58 Evidence: low
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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
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There is a consistent pattern of vulnerability to LB formation across subcortical, paralimbic, and neocortical structures that is similar for DLB cases with or without concomitant AD. 4 key findings →
Participants: 25 Evidence: low
Full summary, score breakdown and related studies → Original source
The discovery that the epsilon 4 allele of the apolipoprotein E (apoE) gene is a putative risk factor for Alzheimer disease (AD) in the general population has highlighted the role of genetic influences in this extremely common and disabling illness. 3 key findings →
Evidence: low
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Neuropathological findings in three aged chimpanzees were compared with those in rhesus monkeys and individuals with Alzheimer disease. 3 key findings →
Evidence: low
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Alzheimer's disease (AD) is the most common cause of dementia in the elderly, and the fourth leading cause of death in the United States. 4 key findings →
Evidence: low
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Plasma Abeta measures increase with age, but, in contrast to reports on familial AD, plasma Abeta measures were neither sensitive nor specific for the clinical diagnosis of mild cognitive impairment or sporadic AD. 2 key findings →
Participants: 146 Evidence: low
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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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Low density lipoprotein-related protein (LRP) is a transmembrane receptor, localized mainly in hepatocytes, fibroblasts, and neurons. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Deposition of beta-amyloid (A beta), a metabolite of approximately 4 kd of the amyloid precursor protein, is a critical pathological feature in Alzheimer disease. 5 key findings →
Evidence: low
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Impairment in instrumental activities of daily living (IADL) heralds the transition from mild cognitive impairment (MCI) to dementia and is a major source of burden for both the patient and caregiver. 4 key findings →
Evidence: low
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Previous data from familial AD due to mutations in presenilin 1 and presenilin 2 genes and the amyloid precursor protein suggest that the long form of Abeta peptide, Abeta42, is selectively increased in these circumstances. 3 key findings →
Design: clinical trial Evidence: low
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The very low density lipoprotein receptor (VLDL-r) is a cell-surface molecule specialized for the internalization of multiple diverse ligands, including apolipoprotein E (apoE)-containing lipoprotein particles, via clathrin-coated pits. 1 key finding →
Evidence: low
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Apolipoprotein E (apoE) and apoE-derived proteolytic fragments are present in amyloid deposits in Alzheimer disease (AD) and cerebral amyloid angiopathy (CAA). 5 key findings →
Evidence: low
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In Alzheimer disease (AD), deposition of neurofibrillary tangles and loss of synapses in the neocortex and limbic system each correlate strongly with cognitive impairment. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Neurofibrillary tangles form in a specific spatial and temporal pattern in Alzheimer's disease. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Neurofibrillary tangles are a feature of Alzheimer disease and other tauopathies, and although they are generally believed to be markers of neuronal pathology, there is little evidence evaluating whether tangles directly impact neuronal function. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Neurofibrillary tangles (NFTs) are associated with neuronal loss and correlate with cognitive impairment in Alzheimer disease, but how NFTs relate to neuronal death is not clear. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
In both trisomy 21 and rare cases of triplication of amyloid precursor protein (APP) Alzheimer's disease (AD) pathological changes are believed to be secondary to increased expression of APP. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The collapse of neural networks important for memory and cognition, including death of neurons and degeneration of synapses, causes the debilitating dementia associated with Alzheimer's disease (AD). 3 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 →