Alzheimer's disease (AD) is a devastating neurodegenerative disorder that causes progressive cognitive decline. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Research
27,780 Alzheimer's and dementia studies in plain English, each scored out of 100.
Alzheimer's disease (AD) is characterized neuropathologically by the deposition of different forms of amyloid beta-protein (A beta) including variable amounts of soluble species that correlate with severity of dementia. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Recent findings indicate that neurovascular dysfunction is an integral part of Alzheimer's disease (AD). 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Aberrant mitosis occurs in many tauopathy-related neurodegenerative diseases and is believed to precede the formation of neurofibrillary tangles. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
36/100
Disruption of intracellular calcium homeostasis via abnormal and excessive activation of ryanodine receptors plays an important role in the neuropathology of Alzheimer's disease. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Traumatic brain injury (TBI) is a serious problem that affects millions of people in the United States alone. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Brain cells are highly energy dependent for maintaining ion homeostasis during high metabolic activity. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The receptor for advanced glycation end products (RAGE) is known to be causally involved in a variety of pathophysiological processes, e.g. immune/inflammatory disorders, Alzheimer disease, tumors, and abnormalities associated with diabetes as arteriosclerosis or disordered wound healing. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Neurodegeneration, synaptic alterations, and gliosis are prominent features of human immunodeficiency virus (HIV) encephalitis, but HIV encephalitis is distinct from other viral encephalitides because neurodegeneration occurs in uninfected neurons at anatomical sites that are often distant from the site of viral replication. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Mounting evidence suggests that amyloid beta-induced impairments in synaptic plasticity that is accompanied by cognitive decline and dementia represent key pathogenic steps of Alzheimer's disease. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Although the pathogenesis of sporadic Alzheimer disease (AD) is not clearly understood, it is likely dependent on several age-related factors. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Synaptic dysfunction is one of the earliest events in the pathogenesis of Alzheimer disease (AD). 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The incidence of Alzheimer disease (AD) and diabetes mellitus (DM) is increasing at an alarming rate and has become a major public health concern worldwide. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Frontotemporal lobar degenerations are a group of disorders characterized by circumscribed degeneration of the frontal and temporal lobes and diverse histopathologic features. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Huntington's disease (HD) is an autosomal dominant, late onset, neurodegenerative disease characterized by motor deficits and dementia that is caused by expansion of a CAG repeat in the HD gene. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The receptor for advanced glycation end products (RAGE) is a pattern-recognition receptor that binds to diverse ligands and initiates a downstream proinflammatory signaling cascade. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Frontotemporal dementia with parkinsonism (FTDP) is a major neurodegenerative syndrome, particularly for those with symptoms beginning before age 65 years. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
36/100
Argyrophilic grain disease (AgD) is a late-onset dementia morphologically characterized by the presence of abundant spindle-shaped argyrophilic grains (ArG) in neuronal processes and coiled bodies in oligodendrocytes. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Tauopathies, characterized by neurofibrillary tangles (NFTs) of phosphorylated tau proteins, are a group of neurodegenerative diseases, including frontotemporal dementia and both sporadic and familial Alzheimer's disease. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The most important new development during recent years in the field of degenerative dementia concerns synaptic pathology. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
We report a Japanese family with early onset hereditary frontotemporal dementia and a novel missense mutation (Ser305Asn) in the tau gene. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Tau protein in a hyperphosphorylated state makes up the intracellular inclusions of several neurodegenerative diseases, including Alzheimer's disease and cases of frontotemporal dementia. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Exonic and intronic mutations in Tau cause neurodegenerative syndromes characterized by frontotemporal dementia and filamentous tau protein deposits. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
36/100
Alzheimer's disease (AD) is the most common neurodegenerative cause of dementia and is responsible for significant individual morbidity and mortality, and economic impact on the health care system. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Filamentous tau inclusions in neurons and glia are neuropathological hallmarks of tauopathies. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source
Where “Free full text” comes from
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
How the 0–100 score works — and why some entries are capped
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.
- Journal tier up to 10 pts
- Journal's citation record up to 4 pts
- Study design up to 12 pts
- Strength of evidence up to 5 pts
- Peer-review validation up to 10 pts
- How recent up to 5 pts
- Sample size up to 4 pts
- Effect reported up to 3 pts
- Studied in people up to 3 pts
- Randomised / blinded up to 2 pts
- Times cited up to 7 pts
- Citations per year up to 5 pts
- Impact for its field and year up to 6 pts
- Cited by studies here up to 6 pts
- Still being cited up to 4 pts
- Senior author's track record up to 4 pts
- Institution's track record up to 3 pts
- Multi-centre collaboration up to 3 pts
- Indexed in PubMed up to 2 pts
- Free to read up to 2 pts
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 27,780 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.
What this library is — and isn't
This is a large sample of the Alzheimer's literature, not an exhaustive index of it. It holds 27,780 records, built mostly from automated pulls of Europe PMC (61.1% of the library) and OpenAlex (18.3%), 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.
1,034 records (3.7% 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 →