27,780 Alzheimer's and dementia studies in plain English, each scored out of 100.
This cross-sectional study evaluates the performance of the US Food and Drug Administration–cleared phosphorylated tau 217 (p-tau217) to β-amyloid 42 ratio cut points used to detect amyloid pathology associated with Alzheimer disease. 1 key finding →
Design: cross-sectional Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Plasma p‐tau 217 offers a cost‐effective AD‐specific alternative to tau‐PET and could potentially be implemented for monitoring cognitive changes in AD trials, while amyloid‐PET lacks utility. 1 key finding →
Design: longitudinal study Participants: 141 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
A total of 322 participants with p-tau217, GFAP, and NfL analyses were stratified into the EOAD or FTD group based on their diagnosis. 5 key findings →
Design: cohort study Participants: 245 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
The relationship between sleep quality, neurofilament light chain (NFL), and cognitive impairment, including the potential effect of plasma NFL in this association, remains unclear. 3 key findings →
Design: longitudinal study Participants: 640 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Neuropsychiatric symptoms (NPS), commonly concomitant with Alzheimer's disease (AD), substantially impair the quality of life and accelerate disease progression, yet reliable biomarkers for early identification of individuals at high NPS risk remain elusive. 4 key findings →
Design: longitudinal study Participants: 509 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Population-based evidence directly linking liver diseases to brain disorders is limited, and its genetic and biochemical associations remain unclear. 2 key findings →
Design: cohort study Participants: 59 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Amyloid burden impacts cognitive decline in the pre-dementia stages of Alzheimer's disease (AD), but there remains significant variability in cognitive trajectories that may be explainable by markers of synaptic function and neurodegeneration. 2 key findings →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Plasma pTau181 may have utility as a biomarker of AD pathophysiology and as a noninvasive screener for elevated brain Aβ.
Full summary, score breakdown and related studies → Original source Free full text
With the increasing life expectancy in developed countries, the incidence of Alzheimer's disease (AD) and thus its socioeconomic impact are growing.
Full summary, score breakdown and related studies → Original source Free full text
Our data support the hypothesis that the pathogenesis of CAA-ri may be mediated by a selective autoimmune reaction against cerebrovascular Aβ, directly related to autoantibody concentration and soluble Aβ. 1 key finding →
Design: case-control study Evidence: moderate
Full summary, score breakdown and related studies → Original source
Sixty-nine HC, 13 preclinical AD, 38 AD-MCI, 44 AD-D, and 79 non-AD CI participants were included. 5 key findings →
Design: cross-sectional Evidence: moderate
Full summary, score breakdown and related studies → Original source
CSF p-tau217 was superior to p-tau181 for the diagnosis of Alzheimer's disease (AD) pathology. 4 key findings →
Participants: 753 Evidence: low
Full summary, score breakdown and related studies → Original source
Plasma was collected from 103 patients: 48 well-controlled (C, 31.3 % female) and 55 drug-resistant (DR, 50.9 % female). 5 key findings →
Participants: 103 Evidence: low
Full summary, score breakdown and related studies → Original source
Plasma biomarkers were compared with densities of post-mortem-assessed amyloid plaques and neurofibrillary changes. 5 key findings →
Participants: 72 Evidence: moderate
Full summary, score breakdown and related studies → Original source
High CSF p-tau235 levels were strongly associated with CSF amyloidosis regardless of the clinical diagnosis, being significantly increased in MCI Aβ+ and dementia Aβ+ when compared with all other Aβ- groups (Paris cohort: P ˂0.0001 for all; BIODEGMAR cohort: P ˂0.05 for all). 5 key findings →
Participants: 212 Evidence: moderate
Full summary, score breakdown and related studies → Original source
N-terminal p-tau was increased in CJD versus SCD (p < 0.0001) and correlated with total tau (t-tau) in the presence of AD and PART co-pathology (rho = 0.758-0.952, p ≤ 001). 5 key findings →
Participants: 29 Evidence: low
Full summary, score breakdown and related studies → Original source
Blood phosphorylated tau (p-tau) biomarkers, including p-tau217, show high associations with Alzheimer's disease (AD) neuropathologic change and clinical stage. 1 key finding →
Participants: 388 Evidence: low
Full summary, score breakdown and related studies → Original source
All assessed BBM levels varied by over 10% by collection tube type. 5 key findings →
Participants: 15 Evidence: low
Full summary, score breakdown and related studies → Original source
p-tau181, NfL, t-tau, and UCHL1 were increased 2- to 4-fold in cirrhosis, whereas GFAP was not increased. 3 key findings →
Participants: 135 Evidence: low
Full summary, score breakdown and related studies → Original source
CSF exhibited increased levels of all SIMOA biomarkers in AD compared to Controls (AUCs: 0.71, 0.86, 0.92, and 0.94, respectively). 4 key findings →
Participants: 43 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Large differences were seen between bvFTD (mean NfL 34.9 pg/mL) and all PPDs and controls (all < 11 pg/mL). 5 key findings →
Participants: 42 Evidence: moderate
Full summary, score breakdown and related studies → Original source
NfL had a stronger association than t-tau with clinical scales; t-tau did not hold additional information to that given by NfL (P > 0.05 at all time points). 5 key findings →
Design: cross-sectional Evidence: moderate
Full summary, score breakdown and related studies → Original source
CSF NPTX2 and serum GFAP levels varied most between diagnostic groups. 5 key findings →
Participants: 37 Evidence: low
Full summary, score breakdown and related studies → Original source
With advances in antiretroviral treatment, the population of older people living with HIV (PLWH) is increasing rapidly, leading to a rise in cognitive impairment related to both HIV and aging. 1 key finding →
Design: cross-sectional Evidence: moderate
Full summary, score breakdown and related studies → Original source
Higher baseline WMH volume and higher GFAP were associated with a greater likelihood of diagnostic progression. 5 key findings →
Participants: 24 Evidence: low
Full summary, score breakdown and related studies → Original source
10 of the 3,069 studies in this tag, picked by a fixed rule (a hash of each study's address), not by score or date; each page of this list shows a different 10. The same 10 appear here every time.
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 →