There are 9.9 million new cases of dementia in the world every year. 4 key findings →
Design: randomized controlled trial Participants: 52 Evidence: high
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.
There are 9.9 million new cases of dementia in the world every year. 4 key findings →
Design: randomized controlled trial Participants: 52 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Soluble triggering receptor expressed on myeloid cells 2 (sTREM2) is a potential and novel biomarker of neuroinflammation implicated in the onset and progression of Alzheimer's disease (AD). 4 key findings →
Design: meta-analysis Participants: 82 Evidence: high
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Mutations in triggering receptor expressed on myeloid cells 2 (TREM2) have been linked to increased Alzheimer's disease (AD) risk. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Few studies have examined the disease burden of AD in commercial managed care settings. 3 key findings →
Participants: 4,450 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Patients with AD have significantly more co-morbid medical conditions and higher healthcare costs and utilization than demographically-matched Medicare beneficiaries. 5 key findings →
Participants: 25,109 Evidence: moderate
Full summary, score breakdown and related studies → Original source
Alzheimer's disease (AD) is the most common neurodegenerative disorder seen in age-dependent dementia. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Variants of TREM2 are associated with Alzheimer's disease (AD). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Increasing oily fish intake has been proposed as a strategy for Alzheimer's disease (AD) prevention, but evidence for long-term benefit remains limited. 2 key findings →
Design: cohort Participants: 2,012 Evidence: null result
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Triggering receptor expressed on myeloid cells 2 (TREM2) plays crucial roles in Alzheimer's disease (AD) by regulating microglia migration toward, and phagocytosis of oligomeric amyloid-β (oAβ) and amyloid plaques. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Alzheimer's disease (AD) accounts for 60%-70% of all dementia cases, and clinical diagnosis at its early stage is extremely difficult. 2 key findings →
Participants: 40 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Microglial-mediated neuroinflammation plays an important role in vascular dementia, and modulating neuroinflammation has emerged as a promising treatment target. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The aggregation of Aβ42-peptides and the formation of drusen in age-related macular degeneration (AMD) are due in part to the inability of homeostatic phagocytic mechanisms to clear self-aggregating Aβ42-peptides from the extracellular space. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
This study compared the ADRs of Lecanemab and Aducanumab, revealing that ARIA was the most common AE for both drugs. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
The Rey-Osterrieth Complex Figure (ROCF) test is a commonly used neuropsychological assessment tool. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Machine learning has become ubiquitous and a key technology on mining electronic health records (EHRs) for facilitating clinical research and practice. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Variants in the gene encoding the triggering receptor expressed on myeloid cells 2 (TREM2) are known to increase the risk of developing Alzheimer disease and Parkinson's disease (PD). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
The gram-negative facultative anaerobe Bacteroides fragilis (B. fragilis) constitutes an appreciable proportion of the human gastrointestinal (GI)-tract microbiome. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Chronic cerebral hypoperfusion (CCH) is regarded as a high-risk factor for cognitive decline in vascular dementia (VaD). 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Extensive studies indicate that β-amyloid (Aβ) aggregation is pivotal for Alzheimer's disease (AD) progression; however, cumulative evidence suggests that Aβ itself is not sufficient to trigger AD-associated degeneration, and whether other additional pathological factors drive AD pathogenesis remains unclear. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Genetic deficits and loss of function for the triggering receptor expressed in myeloid cells 2 (TREM2; encoded at chr6p21.1), a transmembrane spanning stimulatory receptor of the immunoglobulin/lectin-like gene superfamily, have been associated with deficiencies in phagocytosis and the innate immune system in Alzheimer's disease. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
According to the ' amyloid cascade hypothesis of Alzheimer's disease ' first proposed about 16 years ago, the accumulation of Aβ peptides in the human central nervous system (CNS) is the primary influence driving Alzheimer's disease (AD) pathogenesis, and Aβ peptide accretion is the result of an imbalance between Aβ peptide production and clearance. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
Alzheimer's disease (AD) is the most prevalent type of dementia, characterized by the presence of amyloid-β (Aβ) plaques. 4 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Alzheimer's disease (AD) is a multifactorial, age-related neurological disease characterized by complex pathophysiological dynamics taking place at multiple biological levels, including molecular, genetic, epigenetic, cellular and large-scale brain networks. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
Although the potential contribution of the human gastrointestinal (GI) tract microbiome to human health, aging, and disease is becoming increasingly acknowledged, the molecular mechanics and signaling pathways of just how this is accomplished is not well-understood. 5 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
These findings indicate that metformin pro-aggregation effects mitigate the potential benefits arising from its dephosphorylating action, possibly leading to an overall increase of the risk of tauopathy in elderly diabetic patients. 2 key findings →
Evidence: low
Full summary, score breakdown and related studies → Original source
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 →