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Research

27,780 Alzheimer's and dementia studies in plain English, each scored out of 100.

Find studies

Showing 1–25 of 27 studies by Zhang J · free to read (page 1 of 2) · 27,780 in the whole library · How the 0–100 score works

Download bibliography of these 27 studies, in this order: BibTeX (.bib) · RIS (.ris)

Browse by subject, author or institution

Each number is how many studies that link shows, with your other filters kept.

Subjects

Other authors

Names as each record prints them; the same person can appear under two spellings.

Institutions

From OpenAlex; 13,259 studies have no institution on record and are not counted here.

A note on reading research. One study is rarely the final word.

We try to note the size of a study, whether it was in humans or animals, and how early-stage the finding is. If a summary here doesn't make that clear, treat it with extra caution and check the original source.

The efficacy and safety of transcutaneous auricular vagus nerve stimulation in patients with mild cognitive impairment: A double blinded randomized clinical trial

✓ Peer-reviewed alzhub usefulness score 65 out of 100. Brain stimulation 2022-09-21

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

Large-scale plasma proteomic analysis identifies proteins and pathways associated with dementia risk

✓ Peer-reviewed alzhub usefulness score 63 out of 100. Nature aging 2021-05-14

The plasma proteomic changes that precede the onset of dementia could yield insights into disease biology and highlight new biomarkers and avenues for intervention. 4 key findings →

Participants: 4,110 Evidence: moderate

Full summary, score breakdown and related studies → Original source Free full text

Sleep disorders and the risk of cognitive decline or dementia: an updated systematic review and meta-analysis of longitudinal studies

✓ Peer-reviewed alzhub usefulness score 62 out of 100. Journal of Neurology 2025-10-13

This meta-analysis highlights sleep management as a pivotal modifiable factor in reducing the risk of all-cause cognitive decline. 5 key findings →

Design: meta-analysis Evidence: moderate

Full summary, score breakdown and related studies → Original source Free full text

Cerebrospinal fluid Aβ42, t-tau, and p-tau levels in the differential diagnosis of idiopathic normal-pressure hydrocephalus: a systematic review and meta-analysis

✓ Peer-reviewed alzhub usefulness score 62 out of 100. Fluids and barriers of the CNS 2017-05-10

The purpose of this systematic review and meta-analysis was to evaluate the performance of cerebrospinal fluid (CSF) beta amyloid 42 (Aβ42), total tau (t-tau), and phosphorylated tau (p-tau) as potential diagnostic biomarkers for idiopathic normal-pressure hydrocephalus (iNPH) and to assess their utility indistinguishing patients with iNPH from those with Alzheimer disease (AD) and healthy normal controls. 4 key findings →

Design: systematic review Participants: 413 Evidence: high

Full summary, score breakdown and related studies → Original source Free full text

CSF α-synuclein improves diagnostic and prognostic performance of CSF tau and Aβ in Alzheimer's disease

✓ Peer-reviewed alzhub usefulness score 61 out of 100. Acta neuropathologica 2013-06-29

Alzheimer's disease (AD) and Lewy body diseases (LBD), e.g., Parkinson's disease (PD) dementia and dementia with Lewy bodies (DLB), are common causes of geriatric cognitive impairments. 4 key findings →

Design: longitudinal study Participants: 389 Evidence: moderate

Full summary, score breakdown and related studies → Original source Free full text

Plasma Biomarkers of Alzheimer Disease in Women With and Without HIV

✓ Peer-reviewed alzhub usefulness score 60 out of 100. JAMA network open 2023-11-01

These findings suggest that increases in certain plasma AD biomarkers are associated with NP in WLWH and WLWOH and may be associated with later onset of AD, and measuring these biomarkers could be a pivotal advancement in monitoring aging brain health and development of AD among women with and without HIV. 5 key findings →

Design: cohort study Participants: 307 Evidence: moderate

Full summary, score breakdown and related studies → Original source Free full text

Sodium oligomannate therapeutically remodels gut microbiota and suppresses gut bacterial amino acids-shaped neuroinflammation to inhibit Alzheimer's disease progression

✓ Peer-reviewed alzhub usefulness score 59 out of 100. Cell research 2019-09-06

Recently, increasing evidence has suggested the association between gut dysbiosis and Alzheimer's disease (AD) progression, yet the role of gut microbiota in AD pathogenesis remains obscure. 3 key findings →

Design: clinical trial Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Replacement of leisure-time sedentary behavior with various physical activities and the risk of dementia incidence and mortality: A prospective cohort study

✓ Peer-reviewed alzhub usefulness score 57 out of 100. Journal of sport and health science 2022-11-13

Whether or not there is targeted pharmacotherapy for dementia, an active and healthy lifestyle that includes physical activity (PA) may be a better option than medication for preventing dementia. 4 key findings →

Participants: 484,169 Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

NAD+ improves cognitive function and reduces neuroinflammation by ameliorating mitochondrial damage and decreasing ROS production in chronic cerebral hypoperfusion models through Sirt1/PGC-1α pathway

✓ Peer-reviewed alzhub usefulness score 51 out of 100. Journal of neuroinflammation 2021-09-16

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

Effect of 1 Year of Qigong Exercise on Cognitive Function Among Older Chinese Adults at Risk of Cognitive Decline: A Cluster Randomized Controlled Trial

✓ Peer-reviewed alzhub usefulness score 49 out of 100. Frontiers in psychology 2020-10-30

Twenty-five of 33 (75.8%) participants in the qigong group and 26 of 33 (78.8%) participants in the control group completed the 1-year exercise programs. 4 key findings →

Participants: 33 Evidence: high

Full summary, score breakdown and related studies → Original source Free full text

Interaction between amyloid precursor protein and presenilins in mammalian cells: implications for the pathogenesis of Alzheimer disease

✓ Peer-reviewed alzhub usefulness score 48 out of 100. Proceedings of the National Academy of Sciences of the United States of America 1997-07-01

Mutations in the presenilin 1 (PS1) and presenilin 2 (PS2) genes increase the production of the highly amyloidogenic 42-residue form of amyloid beta-protein (Abeta42) in a variety of cell lines and transgenic mice. 4 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Trem2 Y38C mutation and loss of Trem2 impairs neuronal synapses in adult mice

✓ Peer-reviewed alzhub usefulness score 45 out of 100. Molecular neurodegeneration 2020-10-28

The Trem2 variant R47H, confers substantially elevated risk of developing late onset Alzheimer's disease, while NHD-linked Trem2 variants like Y38C, are associated with development of early onset dementia with white matter pathology. 4 key findings →

Evidence: low

Full summary, score breakdown and related studies → Original source Free full text

Curcumin protects against cognitive impairments in a rat model of chronic cerebral hypoperfusion combined with diabetes mellitus by suppressing neuroinflammation, apoptosis, and pyroptosis

✓ Peer-reviewed alzhub usefulness score 43 out of 100. International immunopharmacology 2021-02-03

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

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Where “Free full text” comes from

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.

How the 0–100 score works — and why some entries are capped

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.

  • Journal tier up to 10 pts
  • Journal's citation record up to 4 pts
  • Study design up to 12 pts
  • Strength of evidence up to 5 pts
  • Peer-review validation up to 10 pts
  • How recent up to 5 pts
  • Sample size up to 4 pts
  • Effect reported up to 3 pts
  • Studied in people up to 3 pts
  • Randomised / blinded up to 2 pts
  • Times cited up to 7 pts
  • Citations per year up to 5 pts
  • Impact for its field and year up to 6 pts
  • Cited by studies here up to 6 pts
  • Still being cited up to 4 pts
  • Senior author's track record up to 4 pts
  • Institution's track record up to 3 pts
  • Multi-centre collaboration up to 3 pts
  • Indexed in PubMed up to 2 pts
  • Free to read up to 2 pts

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.

What this library is — and isn't

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 →

Newest studies, as a dated timeline →    Atom feed