30,980 Alzheimer's and dementia studies in plain English, each scored out of 100.
Elevated blood pressure during midlife, persistence of elevated blood pressure into late life, and, among nonhypertensives, a steep decline in blood pressure during mid- to late life were associated with an increased dementia risk in a community-based cohort. 5 key findings →
Participants: 1,440 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Frontotemporal lobar degeneration (FTLD) is the second most common cause of presenile dementia. 1 key finding →
Participants: 515 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Among non-Latino Whites, ADI was associated with dementia incidence (most vs. least disadvantaged ADI quintile HR = 1.09, 95% confidence interval [CI] = 1.02-1.15). 4 key findings →
Participants: 18,103 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Incentives are a cornerstone of attracting and retaining participants in clinical research studies.1 They serve as compensation for the time and effort individuals dedicate to the research process.1 However, previous randomized clinical trials found incentivizing was not associated with increased rates of clinical trial recruitment.2, 3 Furthermore, the rate participants redeem these incentives can vary considerably.1, 4 Although numerous methods have been used to increase trial recruitment, no studies have been conducted to explore factors associated with incentive redemption, regardless of clinical area. 5 key findings →
Design: cohort study Participants: 586 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Cognitive dysfunction, including mild cognitive impairment and dementia, is increasingly recognised as an important comorbidity and complication of diabetes that affects an individual's well-being and diabetes management, and is associated with diabetes treatment-related complications. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Type 2 diabetes mellitus (T2DM) is associated with poorer cognitive performance and increased dementia risk. 2 key findings →
Participants: 9,943 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
A significant ADI × dementia interaction was observed for global atrophy (p = .005) and several other outcomes. 5 key findings →
Design: longitudinal study Participants: 14 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Studies examining associations between greenspace and Alzheimer’s disease and related dementia (ADRD) outcomes are rapidly on the rise, yet no known literature reviews have summarized the racialized/ethnic group and geographic variation of those published studies. 1 key finding →
Participants: 12 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Metabolic disorders and aging promote accumulation of amylin amyloid in the cerebrovascular system and gray matter, altering microvasculature and tissue structure. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Among 5757 participants (21.7% Black, 20.3% Latinx, 58.1% AORE), we found lower odds of amyloid positivity in Black (odds ratio [OR]: 0.72, 95% confidence interval [CI]: 0.62-0.83) and Latinx (OR: 0.78, 95% CI: 0.67-0.91) compared to AORE. 4 key findings →
Participants: 5,757 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
We found that ∼25% of donors lived in high deprivation contexts, 52% had at least one incidence of CVD, and the cohort identified as .05). 3 key findings →
Participants: 7,187 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Higher teacher‐student ratio was associated with greater gray matter volume (β = 6.25, 95% CI: 1.57, 10.92) but was not associated hippocampal volume (β = ‐0.01, 95% CI: ‐0.14, 0.11), ventricular volume (β = ‐0.04, 95% CI: ‐0.13, 0.04), or white matter hyperintensity (β = ‐0.02, 95% CI: ‐0.31, 0.26) (Table 2). 5 key findings →
Participants: 450 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
We used multilevel logistic regression with a random site intercept to test whether the probability of change in management associated with social determinants, race/ADI interactions with amyloid‐positivity, comorbidities, and clinical setting, adjusting for demographics. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Recruitment strategies are tailored in collaboration with community organizations to align with each language group's preferences, including adjusting the blood draw and interview sequence and hosting group blood draws where participants completed the procedure together, fostering a sense of community and reducing anxiety. 5 key findings →
Participants: 252 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We highlight a general overview and methodology of TNS. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Residence in the most disadvantaged neighborhoods may be associated with lower amyloid pathology in cognitively impaired individuals. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Preliminary analysis indicates significant differences in location, ethnoracial background, ADI, and TRAP exposure amongst UCD ADRC participants. 5 key findings →
Participants: 985 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The analyses of the community‐based U.S. POINTER indicate that AA/B individuals present differences in AD and related dementia biomarker values. nHW had higher fully adjusted cognitive scores. 5 key findings →
Participants: 644 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We used multilevel logistic regression with a random site intercept to test whether the probability of change in management associated with social determinants, race/ADI interactions with amyloid‐positivity, comorbidities, and clinical setting, adjusting for demographics. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We observed a relationship between residence in a more disadvantaged neighborhood (higher ADI) and lower rates of amyloid positivity. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We observed a relationship between residence in a more disadvantaged neighborhood (higher ADI) and lower rates of amyloid positivity. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The exposome factors, such as diet, lifestyle, microbiome, chemical exposures and social exposome, shapes human health beyond genetic influences, but the mechanisms remain only partially understood. 1 key finding →
Participants: 449 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 30,980 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 30,980 records, built mostly from automated pulls of Europe PMC (65.2% of the library) and OpenAlex (16.4%), 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.
1,042 records (3.4% of the library) are not peer-reviewed — 967 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 →
Newest studies, as a dated timeline → Atom feed Where this research is being discussed: events