A four month, parallel group, placebo controlled trial undertaken in three centres in Tehran, Iran. 2 key findings →
Participants: 42 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.
A four month, parallel group, placebo controlled trial undertaken in three centres in Tehran, Iran. 2 key findings →
Participants: 42 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease is characterized by a slow, progressive decline in cognitive function and behaviour. 4 key findings →
Participants: 42 Evidence: low
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Total numbers of global DALYs grew 6·1% (95% UI 4·0-8·1), from 2·64 billion (2·46-2·86) in 2010 to 2·80 billion (2·57-3·08) in 2023, but age-standardised DALY rates, which account for population growth and ageing, decreased by 12·6% (11·0-14·1), revealing large long-term health improvements. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
What is known Herbal medicines have been used in the treatment of behavioural and psychological symptoms of dementia but with variable response. 4 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Our results support the positive cognitive effects of boswellic acids by reducing the systemic inflammation. 5 key findings →
Design: randomized controlled trial Evidence: high
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These pathological changes lead to widespread neuronal damage, significantly impacting daily functioning and quality of life. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
White matter hyperintensity (WMH), indicative of cerebral small vessel disease, has emerged as a potential biomarker for cognitive decline in Alzheimer's disease (AD). 2 key findings →
Design: cross-sectional Participants: 158 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Since the world population is ageing, dementia is going to be a growing concern. 2 key findings →
Design: meta-analysis Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
-values compared to gait features. Linear regression analysis indicated that turn dynamics had stronger correlations with executive function and working memory, suggesting a more pronounced relationship between cognitive performance and turn features than gait variables. 3 key findings →
Participants: 75 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Neurofilament light chain (NFL) has been recently introduced as a biomarker of early dementia. 18-Fluorodeoxyglucose positron emission tomography (18F-FDG-PET) is a proxy for regional hypometabolism in Alzheimer disease (AD). 1 key finding →
Participants: 149 Evidence: moderate
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Our findings revealed significantly elevated CSF GAP-43 levels in individuals with AD compared to CN and MCI groups. 4 key findings →
Participants: 1,639 Evidence: moderate
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There is strong evidence that diabetes mellitus increases the risk of cognitive impairment and dementia. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer’s disease (AD) is a slow-growing neurological disorder that destroys human thought and consciousness. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Donepezil and silymarin improved lipid profile associated with increased NAA/Cr, and decreased mI/Cr, in AD patients. 4 key findings →
Participants: 12 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The results of the data analysis revealed two main categories: emotional schemas in mild cognitive impairment and understanding the meaning of the diagnosis. 5 key findings →
Participants: 16 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Tyrosine hydroxylase (TH), a rate-limiting step in catecholamine synthesis in which its activity influences Alzheimer disease, Parkinson disease, and IQ of schizophrenia patients, has been studied for a long time. 3 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
The MoCA shows superior sensitivity for MCI detection compared to the Mini-Mental State Examination (MMSE), with strengths in brevity, multidomain coverage, and accessibility. 5 key findings →
Design: narrative review 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 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 →