28,580 Alzheimer's and dementia studies in plain English, each scored out of 100.
Age-related increases in dementia risk can be attributed to accumulation of multiple pathologies, each of which contributes to dementia risk. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
In contrast to observations in individuals not treated with CART, we found no relationship between CSF markers and neurological status in this CART-using cohort with advanced HIV/AIDS. 2 key findings →
Design: cohort study Participants: 106 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Older patients on hemodialysis are at substantial risk of diagnosis with dementia and Alzheimer's disease, and carrying these diagnoses is associated with a twofold higher mortality. 4 key findings →
Participants: 356,668 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Trisomy 21, the presence of a supernumerary chromosome 21, results in a collection of clinical features commonly known as Down syndrome (DS). 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Loss-of-function mutations in the GBA gene are associated with more severe cognitive impairment in PD, but the nature of these deficits is not well understood and whether common GBA polymorphisms influence cognitive performance in PD is not yet known. 4 key findings →
Participants: 60 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Plasma sphingolipids have been shown to predict cognitive impairment and hippocampal volume loss, but there is little research in patients with Alzheimer's disease (AD). 4 key findings →
Design: cross-sectional Participants: 120 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
An (18)F-labeled PET amyloid-beta (Abeta) imaging agent could facilitate the clinical evaluation of late-life cognitive impairment by providing an objective measure for Alzheimer disease (AD) pathology. 4 key findings →
Design: open-label trial Participants: 16 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Nuclear depletion and cytoplasmic aggregation of the RNA-binding protein TDP-43 are cellular hallmarks of amyotrophic lateral sclerosis (ALS). 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Additional study of mechanisms of action and methods for titrating stimulation parameters will be needed to determine if DBS has potential as an AD treatment. 2 key findings →
Design: post-hoc analysis Participants: 42 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
AF is associated with greater cognitive decline and increased risk of dementia, independent of ischemic stroke. 5 key findings →
Participants: 515 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Seizure incidence is increased in people starting with mild-to-moderate AD. 2 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Mitochondrial DNA instability disorders are responsible for a large clinical spectrum, among which amyotrophic lateral sclerosis-like symptoms and frontotemporal dementia are extremely rare. 2 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Digital biomarker prognostic models can be a useful tool to assist large-scale population screening for the early detection of cognitive impairment and patient monitoring over time. 1 key finding →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Parkin is an E3 ubiquitin ligase involved in the ubiquitination of proteins that are important in the survival of dopamine neurons in Parkinson's disease (PD). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Parkinson disease is a common neurodegenerative disorder characterized by the loss of dopaminergic neurons and the presence of intracytoplasmic-ubiquitinated inclusions (Lewy bodies). 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Defects in nucleocytoplasmic transport have been identified as a key pathogenic event in amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) mediated by a GGGGCC hexanucleotide repeat expansion in C9ORF72, the most common genetic cause of ALS/FTD. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Triggering receptor expressed on myeloid cell 2 (TREM2) is linked to risk of neurodegenerative disease. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
In this analytic cohort of 4130 participants, 486 (11.8%) experienced at least one hospitalization with delirium. 5 key findings →
Design: prospective cohort Participants: 4,130 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Early detection of Alzheimer's disease (AD) is critical yet challenging, particularly in younger individuals. 1 key finding →
Design: longitudinal study Participants: 120 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
In this multi-cohort study of older adults without cognitive impairment, we show that WMH and lacunes independently predict increased risk of MCR, after adjusting for key confounders. 5 key findings →
Design: cohort study Participants: 1,772 Evidence: moderate
Full summary, score breakdown and related studies → Original source Full text may need a subscription
White matter findings were significantly associated with age, silent stroke, hypertension, FEV1, and income.
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Observational studies and pilot trials suggest that metformin may help prevent cognitive decline in neurodegenerative disorders. 3 key findings →
Participants: 326 Evidence: high
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Arterial stiffness is a growing epidemic associated with increased risk of cardiovascular events, dementia, and death. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Vascular disease in the brain is prevalent among incident dementia cases. 1 key finding →
Participants: 3,375 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Neuropsychiatric symptoms (NPSs) are hallmarks of Alzheimer's disease (AD), causing substantial distress for both people with dementia and their caregivers, and contributing to early institutionalization. 5 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 28,580 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 28,580 records, built mostly from automated pulls of Europe PMC (62.2% of the library) and OpenAlex (17.8%), 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 (3.6% 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 →