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Research
28,180 Alzheimer's and dementia studies in plain English, each scored out of 100.
This olive oil-cognition association needs to be confirmed by further studies. 3 key findings →
Participants: 6,947 Evidence: low
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Disruptive behavior is very common in AD and predicts cognitive decline, functional decline, and institutionalization but not mortality. 3 key findings →
Participants: 3,438 Evidence: moderate
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Cognitive impairment is common in the first weeks after stroke, with executive and perceptual disorders being the most frequent. 3 key findings →
Participants: 190 Evidence: low
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Among patients with ischemic stroke, factors identifiable within hours of hospital presentation predicted mortality risk at 30 days and 1 year. 1 key finding →
Participants: 12 Evidence: moderate
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Patients in medical and surgical ICUs are at high risk for long-term cognitive impairment. 4 key findings →
Participants: 821 Evidence: low
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A rise in the incidence of bullous pemphigoid (BP) was documented recently in Europe, and the main risk factors for BP remain unknown. 2 key findings →
Design: case-control study Evidence: moderate
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Neurofilament light chain (NfL) is a potential diagnostic and prognostic plasma biomarker for numerous neurological diseases including Alzheimer's disease (AD). 1 key finding →
Participants: 350 Evidence: low
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Patients with all biomarkers positive for AD (N = 145) had the highest hazard for progression to dementia due to AD, whilst patients with no positive biomarkers (N = 111) had the lowest. 3 key findings →
Participants: 145 Evidence: moderate
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Patients were diagnosed with AD (n = 148, 73.2%), mixed dementia (n = 38, 18.8%), CJD, vascular dementia (n = 4, 2.0% for each), Lewy body dementia, and frontotemporal dementia (n = 3, 1.5% for each). 5 key findings →
Participants: 202 Evidence: low
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In 78 participants, discomfort levels were monitored during palliative sedation. 5 key findings →
Participants: 78 Evidence: low
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NDs share a CSF profile characterized by increased levels of CSF CHIT1, YKL-40, and GFAP, which likely reflects a common neuroinflammatory response to protein misfolding and aggregation. 3 key findings →
Participants: 101 Evidence: low
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Providing a dementia diagnosis is challenging, especially in primary care and considering diverse patient backgrounds. 5 key findings →
Design: systematic-review Evidence: early
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Alzheimer disease (AD) risk differs across ancestral populations, yet most genetic studies have focused on non-Hispanic White (NHW) cohorts. 1 key finding →
Design: cross-sectional Participants: 751 Evidence: early
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Conventional cost estimates, which do not consider unpaid caregiver burden and patient productivity loss, significantly underestimate the total burden of AD. 3 key findings →
Design: modelling Evidence: early
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HRU and payments were overall similar between A4 and LEARN Medicare. 5 key findings →
Design: cohort Participants: 367 Evidence: early
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Neuroinflammation drives Alzheimer's disease (AD) pathogenesis. 2 key findings →
Evidence: early
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Among the more than 90 identified genetic risk loci for late-onset Alzheimer's disease (AD) and related dementias, the apolipoprotein E (APOE) gene ɛ2/ɛ3/ɛ4 polymorphisms remain the longstanding benchmark for genetic disease risk with a consistently large effect across studies 1-10 . 5 key findings →
Design: case-control Evidence: high
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We found that pharmacological activation of PPARA by the PPARA agonists gemfibrozil and Wy14643 induces autophagy in human microglia (HM) cells and U251 human glioma cells stably expressing the human APP (amyloid beta precursor protein) mutant (APP-p.M671L) and this effect is PPARA-dependent. 2 key findings →
Evidence: low
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Astrocytes are a population of cells with distinctive morphological and functional characteristics that differ within specific areas of the brain. 1 key finding →
Evidence: low
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Plasma neurofilament light (NFL) has been proposed as a blood-based biomarker for neurodegeneration in Alzheimer's disease (AD) and parkinsonian disorders. 2 key findings →
Evidence: low
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Higher gLFC connectivity is a functional substrate of CR that helps to maintain episodic memory relatively well in the face of emerging FDG-PET hypometabolism in early-stage AD. 3 key findings →
Evidence: low
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Lewy body (LB) disorders, including Parkinson disease (PD), Parkinson disease dementia (PDD), and dementia with Lewy bodies (DLB), are the second most common type of neurodegenerative dementia. 2 key findings →
Design: longitudinal study Evidence: moderate
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Molecular subtypes of sporadic CJD show different levels of plasma tau. 2 key findings →
Participants: 132 Evidence: low
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Alzheimer's disease (AD), the most common form of dementia, remains challenging to understand and treat despite decades of research and clinical investigation. 3 key findings →
Evidence: low
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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 28,180 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 28,180 records, built mostly from automated pulls of Europe PMC (61.7% of the library) and OpenAlex (18.1%), 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 →