27,780 Alzheimer's and dementia studies in plain English, each scored out of 100.
Late-onset unexplained epilepsy (LOUE) represents a substantial proportion of epilepsies with onset after 50 years and often manifests as temporal lobe epilepsy (LO-TLE). 4 key findings →
Design: cohort study Participants: 18 Evidence: moderate
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Three-year longitudinal cohort study. 4 key findings →
Design: cohort study Evidence: moderate
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Data were used from the first wave of The Irish Longitudinal Study on Ageing (TILDA), a prospective cohort study that includes a comprehensive health assessment. 4 key findings →
Design: cohort study Evidence: moderate
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Low levels of cerebrospinal fluid (CSF) beta-amyloid 1-42 (Abeta42) and high total tau (T-tau) are diagnostic for manifest Alzheimer's disease. 4 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Quality of life (QoL) is becoming an increasingly used outcome measure in both clinical practice and research but little is known about QoL in dementia and how it may change over time. 4 key findings →
Design: longitudinal study Participants: 60 Evidence: moderate
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Cross sectional analysis comparing prospectively collected research data with MDS data reported from nursing homes on identical subjects. 4 key findings →
Design: longitudinal study Participants: 140 Evidence: moderate
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Vascular factors and stroke are associated with cognitive function and dementia. 4 key findings →
Design: cohort study Evidence: moderate
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In humans, aging, triggers increased plasma concentrations of triglycerides, cholesterol, low-density lipoproteins and lower capacity of high-density lipoproteins to remove cellular cholesterol. 4 key findings →
Design: cohort study Evidence: moderate
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Hippocampal volumetry derived from structural MRI is increasingly used to delineate regions of interest for functional measurements, assess efficacy in therapeutic trials of Alzheimer's disease (AD) and has been endorsed by the new AD diagnostic guidelines as a radiological marker of disease progression. 4 key findings →
Design: longitudinal study Evidence: moderate
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Current models of progression in neurodegenerative diseases use neuroimaging measures that are averaged across pre-defined regions of interest (ROIs). 4 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Serotonin (5-HT) neuron and neurotransmitter loss in normal aging and neuropsychiatric diseases of late life may contribute to behavioral changes commonly observed in the elderly population. 4 key findings →
Design: longitudinal study Evidence: moderate
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The neuroprotective effects of estrogen have been demonstrated consistently in cellular and animal studies but the evidence in women remains conflicted. 4 key findings →
Design: cohort study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Age and the apolipoprotein E ε4 allele are well-known risk factors for Alzheimer disease, but whether female sex is also a risk factor remains controversial. 4 key findings →
Design: longitudinal study Evidence: moderate
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Thirteen percent of care recipients had at least 1 ACSH. 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
We examined factors associated with self-reported medication nonadherence in well-characterized community-based cohort of older adults. 5 key findings →
Design: cohort study Participants: 5,164 Evidence: moderate
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Overall, 430 093 participants were included. 5 key findings →
Design: cohort study Participants: 93 Evidence: moderate
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Significant interactions between amyloid status and modifiable risk factors were observed for diabetes (adjusted β = -0.206, p = 0.032), high cholesterol (adjusted β = -0.155, p < 0.001), and physical inactivity (adjusted β = -0.161, p = 0.046), indicating combined effects rather than additive effects on cognitive decline among Aβ+ individuals. 5 key findings →
Design: cohort study Participants: 1,707 Evidence: moderate
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Time is an under-recognised social determinant of brain health, and is potentially as important as education or income for dementia risk. 5 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Lifestyle behavioral change is a critical component for secondary prevention of stroke. 1 key finding →
Design: longitudinal study Evidence: high
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Due to rapid population aging, the number of Chileans with dementia is estimated to triple by 2050. 1 key finding →
Design: longitudinal study Participants: 1,778 Evidence: moderate
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TabCAT tests showed good convergent validity with traditional pen-and-paper tests. 5 key findings →
Design: longitudinal study Participants: 146 Evidence: moderate
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Dementia risk was significantly higher in patients with epilepsy compared with that of controls (IRR: 3.65; 95% CI: 3.14-4.24), especially within the first 2 years post-diagnosis (aHR: 5.42; 95% CI: 4.30-6.83), peaking between 8 and 10 years (aHR: 8.25; 95% CI: 3.15-21.5). 5 key findings →
Design: cohort study Participants: 2,740 Evidence: moderate
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Pathophysiologic-constrained ADL provided interpretable, personalized pathologic maps and an AI-derived ADAD score that more closely linked PET pathologic abnormalities with multimodal clinical measures. © RSNA, 2026 3 key findings →
Design: longitudinal study Participants: 7,457 Evidence: moderate
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Midlife individuals who experienced HDP had lower regional CBF and reduced white matter microstructural integrity, compared with those with no adverse pregnancy outcomes. 5 key findings →
Design: prospective cohort Participants: 81 Evidence: moderate
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Among 331,731 participants (mean ± SD age, 56.53 ± 8.1 years; 156,762 [47.26 %] male), 4413 (1.33 %) developed dementia during a mean follow-up of 12.8 years. 5 key findings →
Design: cohort study Participants: 331,731 Evidence: moderate
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 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.
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 →