Neurotropic herpesviruses may be implicated in the development of dementia 1-5 . 1 key finding →
Design: cohort Evidence: moderate
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.
Neurotropic herpesviruses may be implicated in the development of dementia 1-5 . 1 key finding →
Design: cohort Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease is the leading cause of dementia worldwide, but the cellular pathways that underlie its pathological progression across brain regions remain poorly understood 1-3 . 4 key findings →
Participants: 48 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
This study investigated a subtype of reactive astrocytes called A1 and discovered that they are induced by classically activated neuroinflammatory microglia. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Senile plaques accumulate over the course of decades in the brains of patients with Alzheimer's disease. 4 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
APOE4 is the strongest genetic risk factor for late-onset Alzheimer disease. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The incidence of Alzheimer's disease (AD), the leading cause of dementia, increases rapidly with age, but why age constitutes the main risk factor is still poorly understood. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Parkinson's disease (PD) is the most common movement disorder, with resting tremor, rigidity, bradykinesia and postural instability being major symptoms 1 . 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
A hallmark pathological feature of the neurodegenerative diseases amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) is the depletion of RNA-binding protein TDP-43 from the nucleus of neurons in the brain and spinal cord 1 . 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Variants of UNC13A, a critical gene for synapse function, increase the risk of amyotrophic lateral sclerosis and frontotemporal dementia 1-3 , two related neurodegenerative diseases defined by mislocalization of the RNA-binding protein TDP-43 4,5 . 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Liver cirrhosis is a major cause of death worldwide and is characterized by extensive fibrosis. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
This study analyzed 80,660 single-nucleus transcriptomes from the prefrontal cortex of 48 individuals with varying degrees of Alzheimer's disease pathology to examine molecular and cellular changes across six major brain cell types. 4 key findings →
Full summary, score breakdown and related studies → Original source Free full text
The ordered assembly of tau protein into filaments characterizes several neurodegenerative diseases, which are called tauopathies. 2 key findings →
Evidence: low
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The spread of protein aggregates during disease progression is a common theme underlying many neurodegenerative diseases. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The UK Biobank project is a prospective cohort study with deep genetic and phenotypic data collected on approximately 500,000 individuals from across the United Kingdom, aged between 40 and 69 at recruitment.
Full summary, score breakdown and related studies → Original source Free full text
This study investigated the effect of NLRP3 inflammasome function on tau pathology and Alzheimer's disease progression. 5 key findings →
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Alzheimer's disease is the world's most common dementing illness. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Amyotrophic lateral sclerosis (ALS) is a paralytic and usually fatal disorder caused by motor-neuron degeneration in the brain and spinal cord. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Gonadal development is a complex process that involves sex determination followed by divergent maturation into either testes or ovaries 1 . 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Synucleinopathies are neurodegenerative diseases that are associated with the misfolding and aggregation of α-synuclein, including Parkinson's disease, dementia with Lewy bodies and multiple system atrophy 1 . 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Human apolipoprotein E has three isoforms: APOE2, APOE3 and APOE4. 2 key findings →
Evidence: low
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The ordered assembly of tau protein into abnormal filamentous inclusions underlies many human neurodegenerative diseases 1 . 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Human neurons are functional over an entire lifetime, yet the mechanisms that preserve function and protect against neurodegeneration during ageing are unknown. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Amyotrophic lateral sclerosis (ALS) is a rapidly progressing neurodegenerative disease that is characterized by motor neuron loss and that leads to paralysis and death 2-5 years after disease onset. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease (AD) is the most prevalent cause of dementia 1 . 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Our findings suggest a higher prevalence of Alzheimer’s disease dementia in older individuals and a lower prevalence of preclinical Alzheimer’s disease in younger groups than previously estimated 2 . 1 key finding →
Evidence: moderate
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.
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 →