However, LB pathology in LRRK2-related PD may be a marker for a broader parkinsonian symptom complex including cognitive impairment. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
28,980 Alzheimer's and dementia studies in plain English, each scored out of 100.
However, LB pathology in LRRK2-related PD may be a marker for a broader parkinsonian symptom complex including cognitive impairment. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
An intronic expansion of GGGGCC repeats within the C9ORF72 gene is the most common genetic cause of amyotrophic lateral sclerosis and frontotemporal dementia (ALS-FTD). 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Autosomal-recessive early-onset parkinsonism is clinically and genetically heterogeneous. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Research increasingly suggests that subjective cognitive decline (SCD) in older adults, in the absence of objective cognitive dysfunction or depression, may be a harbinger of non-normative cognitive decline and eventual progression to dementia. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
TREM2 mutations were first identified in Nasu-Hakola disease, a rare autosomal recessive disease characterized by recurrent fractures because of bone cysts and presenile dementia. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Parkinson's disease (PD) is a common motor disorder of mysterious etiology. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
PICALM, a clathrin adaptor protein, plays important roles in clathrin-mediated endocytosis in all cell types. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Cerebrovascular disease (CVD) and amyloid-β (Aβ) often coexist, but their influence on neurodegeneration and cognition in predementia stages remains unclear. 4 key findings →
Participants: 99 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The cause of Parkinson's disease (PD) remains unknown in most patients. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
ANOVA revealed significant group differences in lateral ventricular SUVR across the Alzheimer, mild cognitive impairment, and healthy control groups ( P = 0.004). 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Mutations in the TAR DNA Binding Protein gene (TARDBP), encoding the protein TDP-43, were identified in amyotrophic lateral sclerosis (ALS) patients. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
The spatial relationship of apolipoprotein E (apoE)-like immunoreactivity (IR) to amyloid beta-peptide (A beta), astrocytes and microglial cells in the brain of Alzheimer's disease was studied by double immunolabelling. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Various experimental models are used to study brain development and degeneration. 1 key finding →
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
Full summary, score breakdown and related studies → Original source Free full text
The amyloid precursor protein (APP) is cleaved by β- and γ-secretases to generate the β-amyloid (Aβ) peptides, which are present in large amounts in the amyloid plaques of Alzheimer disease (AD) patient brains. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We describe the largest series of patients with TARDBP mutations presenting with frontotemporal dementia (FTD) and review the cases in the literature to precisely characterize FTD diseases associated with this genotype. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Positron emission tomography (PET) imaging of brain amyloid beta is now clinically available in several countries including the United States and the United Kingdom, but not Canada. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The hippocampus, derived from medial regions of the telencephalon, constitutes a remarkable brain structure. 1 key finding →
Evidence: low
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We found 5 distinct clusters of subjects (N=38, N=16, N=24, N=14, N=21) with a composition statistically independent from that obtained using available clinical diagnostic criteria (each cluster included all phenotypical groups). 3 key findings →
Participants: 20 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Caspase cleaved amyloid precursor protein (APPcc) and SET are increased and mislocalized in the neuronal cytoplasm in Alzheimer Disease (AD) brains. 1 key finding →
Evidence: low
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SET is a multifunctional protein, but when present in the cytoplasm, acts as a powerful inhibitor of phosphatase 2A. We previously observed that in CA1 of Down syndrome (DS) patients, the level of SET is increased, and SET is translocated to the cytoplasm and associated with the hyperphosphorylation of tau at ser202/thr205. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
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 28,980 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 28,980 records, built mostly from automated pulls of Europe PMC (62.8% of the library) and OpenAlex (17.6%), 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.
1,038 records (3.6% of the library) are not peer-reviewed — 966 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 →