HIV-associated neurologic disorders (HAND) continue to develop in many patients with HIV. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
28,580 Alzheimer's and dementia studies in plain English, each scored out of 100.
HIV-associated neurologic disorders (HAND) continue to develop in many patients with HIV. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
There is concern that AIDS dementia complex (ADC) may be complicated by Alzheimer disease (AD). 2 key findings →
Evidence: low
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Many neurodegenerative proteinopathies share a common pathogenic mechanism: the abnormal accumulation of disease-related proteins. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Research progress has provided detailed understanding of the molecular pathogenesis of Alzheimer disease (AD). 4 key findings →
Evidence: low
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After 2 years, 34 subjects (16%) were lost for follow-up. 4 key findings →
Participants: 34 Evidence: low
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There is a need for an accessible biomarker that can complement current cerebrospinal fluid and imaging biomarkers in an accurate and early diagnosis of Alzheimer disease (AD). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Levels of amyloid-β (Aβ) and tau peptides in brain have been associated with Alzheimer disease (AD). 4 key findings →
Participants: 22 Evidence: low
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Alzheimer disease (AD) is a devastating disease and a global health problem, and current treatments are only symptomatic. 4 key findings →
Participants: 242 Evidence: low
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Study objectives To evaluate the role of orexin-A with respect to cerebrospinal fluid (CSF) Alzheimer disease (AD) biomarkers, and explore its relationship to cognition and sleep characteristics in a group of cognitively normal elderly individuals. 4 key findings →
Evidence: low
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Previous research has shown that elevated blood C-reactive protein (CRP) is associated with increased Alzheimer disease (AD) risk only in APOE ε4 allele carriers; the objective of this study was to examine the interactive effects of plasma CRP and APOE genotype on cognition and AD biomarkers. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease (AD) remains a clinical diagnosis but biomarkers from cerebrospinal fluid (CSF) and more lately amyloid imaging with positron emission tomography (PET), are important to support a diagnosis of AD. 4 key findings →
Participants: 64 Evidence: low
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BackgroundAs the prevalence of Alzheimer disease (AD) rises, early identification of at-risk individuals is essential for effective intervention. 4 key findings →
Evidence: low
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This study was undertaken to compare the performance of plasma p-tau181 with that of [ 18 F]fluorodeoxyglucose (FDG) positron emission tomography (PET) in the identification of early biological Alzheimer disease (AD). 4 key findings →
Participants: 533 Evidence: low
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There were 534 patients who underwent AD CSF biomarkers (Roche Elecsys Aβ42, p-Tau181, total-Tau) from April 1, 2020, through April 23, 2021. 4 key findings →
Participants: 534 Evidence: low
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This study aims to assess the evolution of cognitive performances over a 5-year follow-up period in community-dwelling older people with negative plasma p-tau181 levels and to determine whether frailty could discriminate between those who experience cognitive decline and those who do not, in the p-tau negative groups. 4 key findings →
Design: longitudinal study Evidence: moderate
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Mechanisms underlying the protective effect of apolipoprotein E ( APOE ) ε2 against Alzheimer’s disease (AD) are not well understood. 4 key findings →
Participants: 982 Evidence: low
Full summary, score breakdown and related studies → Original source
BackgroundAmyloid-negative tau-related neurodegeneration represents a non-Alzheimer biomarker-defined profile; however, its clinical heterogeneity and prognostic relevance remain unclear within Alzheimer's disease-related frameworks. 4 key findings →
Design: cohort study Participants: 1,280 Evidence: moderate
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Nearly a dozen monoclonal antibodies (mAbs) directed against beta-amyloid (Aβ) have been developed for the treatment of Alzheimer disease (AD), and most of these mAbs are undergoing clinical trials. 4 key findings →
Design: clinical trial Evidence: low
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Parkinson's disease (PD) is a complex syndrome for which there is no disease-modifying treatment on the market. 4 key findings →
Evidence: low
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We developed a set of informant-based items describing performance of activities of daily living (ADL) by patients with Alzheimer's disease (AD) to identify which ADL are useful for assessment of patients in clinical trials. 4 key findings →
Participants: 45 Evidence: low
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Neurofibrillary degeneration in the nucleus basalis and a loss of its cortical cholinergic projections are prominent components of the neuropathology in Alzheimer's disease (AD). 4 key findings →
Evidence: low
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[(11)C](R)PK11195-PET measures upregulation of translocator protein, which is associated with microglial activation, [(11)C]PIB-PET is a marker of amyloid, while [(18)F]FDG-PET measures cerebral glucose metabolism (rCMRGlc). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
We studied executive function and autobiographical memory in a cohort of 33 DAT patients [divided into minimal (MMSE 24-30) and mild (MMSE 17-23) groups] and in 30 normal controls. 4 key findings →
Evidence: moderate
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The Mini-Mental State Examination (MMSE), a brief test of cognitive function, has been widely used to screen for dementia. 4 key findings →
Evidence: low
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25 older individuals with MCI performed a visual scene encoding task during fMRI scanning, and were followed clinically for at least 4 years after scanning. 4 key findings →
Evidence: low
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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 28,580 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 28,580 records, built mostly from automated pulls of Europe PMC (62.2% of the library) and OpenAlex (17.8%), 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 (3.6% 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 →