Plasma biomarkers of neuronal injury and astrogliosis are associated with reduced axonal density and region-specific myelin content. 5 key findings →
Participants: 119 Evidence: low
Full summary, score breakdown and related studies → Original source
28,180 Alzheimer's and dementia studies in plain English, each scored out of 100.
Plasma biomarkers of neuronal injury and astrogliosis are associated with reduced axonal density and region-specific myelin content. 5 key findings →
Participants: 119 Evidence: low
Full summary, score breakdown and related studies → Original source
Presence of Alzheimer's pathology in patients with RHI/TES is associated with altered cognitive and biomarker profiles. 5 key findings →
Participants: 154 Evidence: low
Full summary, score breakdown and related studies → Original source
Only increased serum NfL concentrations and decreased hippocampal volume was observed in cognitively unimpaired APOEε4 homozygotes compared to non-carriers. 5 key findings →
Participants: 19 Evidence: low
Full summary, score breakdown and related studies → Original source
Olfactory dysfunction can indicate early cognitive decline and is associated with dementia symptoms. 4 key findings →
Participants: 30 Evidence: low
Full summary, score breakdown and related studies → Original source
Among 455,306 UK Biobank participants, 37 carried one copy of the APOE Christchurch variant (allele frequency 0.004%). 4 key findings →
Design: cohort Participants: 455,306 Evidence: early
Full summary, score breakdown and related studies → Original source Free full text
Healthcare costs are already elevated in early subjective and objective cognitive impairment, driven by formal and informal care. 5 key findings →
Design: cross-sectional Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Recently, ~16% of participants in an anti-Aβ passive immunotherapy trial for mild-to-moderate Alzheimer disease (AD) had a negative baseline amyloid positron emission tomography (PET) scan. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Amyloid imaging is currently introduced to the market for clinical use. 5 key findings →
Design: cross-sectional Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Infections have been associated with the incidence of Alzheimer disease and related dementias, but the mechanisms responsible for these associations remain unclear. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We established AD diagnostic models using plasma biomarkers for Chinese participants. 2 key findings →
Participants: 159 Evidence: low
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After disclosure, 27 patients with amyloid-positive SCD+ (median [IQR] age, 70 [66-74] years; gender: 14 men [52%]; median [IQR] education: 15 [13 to 17] years, median [IQR] Mini-Mental State Examination [MMSE] score, 29 [28 to 30]) had higher median (IQR) IES-R total score (10 [2 to 14] vs 0 [0 to 2]; P Conclusions and relevance The disclosure of a positive amyloid-PET result to patients with SCD+ was associated with a bigger psychological change, yet such change did not reach the threshold for clinical concern. 5 key findings →
Participants: 27 Evidence: low
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Participants with higher total-tau and NfL at baseline had a higher risk of stroke and several stroke subtypes. 5 key findings →
Participants: 379 Evidence: moderate
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Our results support the utility of CSF VEC as a marker of endothelial injury in AD and highlight the importance of endothelial injury as an early pathology that contributes to cognitive impairment in even the earliest preclinical stages. 3 key findings →
Participants: 700 Evidence: moderate
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Twenty-seven individuals (14%) had an abnormal amyloid PET, and 14 twin-pairs (15%) showed discordant amyloid PET scans. 2 key findings →
Participants: 126 Evidence: low
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Comparing clinical stages, CSF PDGFRβ levels were increased at the MCI stage (Cohen's d = 0.55 [CI 95% 0.066, 1.0], P = 0.025) compared with NC. 3 key findings →
Participants: 23 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Our findings suggest that microglial and astrocyte reactivity, measured through fluid biomarkers, occur early and impact the amyloid cascade on the preclinical Alzheimer´s continuum. 4 key findings →
Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
We found that ML-PRS approaches improved upon standard PRS for prediction of AD endophenotypes, partly related to improved accounting for nonlinear effects of genetic susceptibility alleles. 3 key findings →
Participants: 1,791 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Magnetic resonance spectroscopy detects Alzheimer's disease related inflammation and neurodegeneration, and could be a good noninvasive disease-stage biomarker in Down syndrome. 3 key findings →
Participants: 118 Evidence: moderate
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There is growing evidence that cognitive decline can be affected by both nutritional aspects and inflammation. 3 key findings →
Design: cross-sectional Participants: 116 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Across 3 study samples, combining the functional connectome and molecular properties substantially enhanced the explanatory power compared to single modalities, providing a valuable tool to explain regional susceptibility to tau deposition in AD. 3 key findings →
Participants: 1,000 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Determining blood biomarkers represents less invasive and less costly diagnostics for Alzheimer´s disease. 1 key finding →
Design: meta-analysis Evidence: high
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Apolipoprotein E (APOE) genotype is the major genetic risk factor for Alzheimer disease (AD); the ε4 allele increases risk and the ε2 allele is protective. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Family history is the second strongest risk factor for Alzheimer disease (AD) following advanced age. 1 key finding →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The early endosome is the first vacuolar compartment along the endocytic pathway. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Apolipoprotein E (apoE) is critical in the modulation of cholesterol and phospholipid transport between cells of different types. 3 key findings →
Participants: 40 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 28,180 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 28,180 records, built mostly from automated pulls of Europe PMC (61.7% of the library) and OpenAlex (18.1%), 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 →