We demonstrate that a supernumerary chromosome 21 causes Inhibition of Neuroectodermal DIfferentiation (INDI) of pluripotent ES cells. 3 key findings →
Evidence: low
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.
We demonstrate that a supernumerary chromosome 21 causes Inhibition of Neuroectodermal DIfferentiation (INDI) of pluripotent ES cells. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease (AD) exhibits distinct biochemical and histopathological attributes, encompassing cellular, neuronal, and oxidative impairment. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Based on efficacy and safety data, several drugs have been approved for symptomatic improvement of dementia of the Alzheimer type and one for the symptomatic improvement of dementia associated with Parkinson's disease. 4 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
The intervention in the Digital, Cognitive, Multi-domain Alzheimer Risk Velocity is uniquely designed to reduce the risk of AD through a web-based health coaching experience that addresses the modifiable lifestyle-based risk factors. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Treatment outcomes in the DIADS-2 trial were not significantly influenced by genetic variation at the loci that were assessed. 3 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Patients at late stage Parkinson's disease (PD) develop several motor and nonmotor complications, which dramatically impair their quality of life. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The value and durability of this potential contribution, however, demands an improved discipline-wide knowledge base about the unique features associated with different dementia variants. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Down syndrome (DS) is the most common non-lethal genetic condition that affects approximately 1 in 700 births in the United States of America. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The vascular and parenchymal amyloid deposits in Alzheimer disease (AD), normal aging and Down syndrome are mainly composed of a 4 kDa polypeptide (A4), which derives from a larger precursor protein (APP). 2 key findings →
Evidence: low
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Our results demonstrate that gene expression in trisomy 21 affected placentas significantly differs from that of chromosomally normal placentas, and this difference is only partially explained by over-expression of genes from chromosome 21. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Basal forebrain cholinergic neurons play an important role in cognitive functions such as learning and memory, and they are affected in several neurodegenerative diseases, including Alzheimer disease and Down syndrome. 1 key finding →
Evidence: low
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In humans, GART [phosphoribosylglycinamide formyltransferase (EC 2.1.2.2) / phosphoribosylglycinamide synthetase (EC 6.3.4.13) / phosphoribosylaminoimidazole synthetase (EC 6.3.3.1)] is a trifunctional protein which catalyzes the second, third, and fifth reactions of the ten step de novo purine synthesis (DNPS) pathway. 3 key findings →
Evidence: low
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The majority of the participants met criteria for obesity. 2 key findings →
Evidence: low
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Frailty in DS is associated with both ID severity and acquired cognitive decline. 5 key findings →
Design: cross-sectional Evidence: low
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Microglia are resident mononuclear phagocytes that play a principal role in the maintenance of normal tissue homeostasis in the central nervous system (CNS). 4 key findings →
Evidence: low
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Traumatic brain injury (TBI) alters stress responses, which may influence neuroinflammation and behavioral outcome. 4 key findings →
Evidence: low
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We previously reported that, in the brains of older patients with vascular dementia (VaD), there is a distinctive accumulation of detergent-extractable soluble amyloid-β, with a predominance of Aβ42 species. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Synaptic loss is the best surrogate for cognitive decline in Alzheimer disease (AD) and is more closely associated with cognitive function than amyloid or tau pathologies. 4 key findings →
Design: cross-sectional Participants: 20 Evidence: low
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OF IMPACT: The results contribute new evidence towards an emerging ecological model of cognitive health. 5 key findings →
Participants: 16,404 Evidence: low
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Retail workers contribute to the daily wellbeing of customers, including those living with disabilities or diseases. 2 key findings →
Participants: 145 Evidence: low
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We estimate that up to three million more Americans will be made food insecure by the taxes alone, which amounts to almost a 10% increase in overall food insecurity rates. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The annual number of deaths at hospital was consistently increased over time from 1996 to 2016 (age-adjusted OR: 6.01; 95% CI 5.81 to 6.21 versus home deaths). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
fewer functional limitations in the MA population, perhaps explaining why those patients had fewer health care visits. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
A significantly higher percentage of DRP patients had ≥1 diagnosis for behavioral health conditions in the pre-index period compared with dementia-only patients (depression: 32.4% vs. 22.8%; anxiety: 19.1% vs. 11.5%; and insomnia: 9.0% vs. 6.3%; P < 0.001 for all comparisons). 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Among SNF admissions from 2013 to 2018, the share of ACO-attributed beneficiaries increased from 7.6% to 20.2%, MA enrollees increased from 25.2% to 32.8%, and non-ACO-attributed TM enrollees decreased from 67.2% to 47.3%. 4 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.
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 →