27,380 Alzheimer's and dementia studies in plain English, each scored out of 100.
Inflammation has been implicated as a pathogenetic factor in Alzheimer disease, possibly via effects on beta-amyloid (Abeta). 1 key finding →
Evidence: high
Full summary, score breakdown and related studies → Original source Full text may need a subscription
CSF Abeta1-14, Abeta1-15, and Abeta1-16 increase during gamma-secretase inhibitor treatment in AD, even at doses that do not affect Abeta1-42 or Abeta1-40, probably because of increased substrate availability of the C99 APP stub (APP beta-CTF) induced by gamma-secretase inhibition. 2 key findings →
Participants: 35 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
The use of new technologies (i.e., mobile ecological momentary assessments [EMAs], activity tracker) in the PENSA study allows the collection of continuous data on lifestyle behaviors (diet and physical activity) and mood, enabling a personalized design as well as an intensive follow-up of participants. 2 key findings →
Participants: 200 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Overall time and the times for ADL care and supervision can be considered valid estimates. 2 key findings →
Design: randomized controlled trial Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
The cognitive functions of the patients in the CMG and WMG were improved after treatment. 2 key findings →
Participants: 131 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
The two groups' baseline characteristics, including age, sex, mean length of education, and disease duration, were comparable, as were their baseline Mini-Mental State Examination scores. 1 key finding →
Participants: 42 Evidence: high
Full summary, score breakdown and related studies → Original source Full text may need a subscription
These results are approximately 10 times those usually observed with both nonpharmacological and pharmacological treatments and indicate substantial benefits with the management program for advanced AD persons. 3 key findings →
Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Nicotine is a cholinergic agonist that acts, not only post-synaptically, but also releases pre-synaptic acetylcholine, and in animal models has been shown to reverse spatial memory decline in rats with lesion in the medial septal nucleus and to show recovery on memory in aged monkeys. 2 key findings →
Design: systematic review Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Measurement of HL plasma levels may have potential usefulness as an adjunct in monitoring treatment response to oral HL in AD patients with psychosis or disruptive behavior. 5 key findings →
Participants: 40 Evidence: high
Full summary, score breakdown and related studies → Original source Full text may need a subscription
This is the first study to investigate urine biomarker through exercise intervention. 3 key findings →
Participants: 12 Evidence: low
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Thirty medical specialists (geriatricians, n = 23; psychiatrists, n = 4; neurologists, n = 3) from 30 different clinics participated (public, 76.7%; private, 23.3%), including from metropolitan (73.3%), regional (20.0%) and rural (6.7%) areas. 5 key findings →
Design: cross-sectional Participants: 23 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
A total of 282 participants were followed for an average of 2.9 years (standard deviation [SD] 1.3 years). 5 key findings →
Participants: 282 Evidence: low
Full summary, score breakdown and related studies → Original source Free full text
This special issue of Alzheimer's & Dementia celebrates the accomplishments of the Alzheimer's Disease Neuroimaging Initiative (ADNI) project as it approaches its 20th anniversary in 2024, supported by funding from the National Institute on Aging. 1 key finding →
Design: longitudinal study Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Cerebral amyloid angiopathy (CAA) is a cerebrovascular disorder characterized by the deposition of amyloid-β (Aβ) in the walls of leptomeningeal and cortical blood vessels that increases risk of intracerebral hemorrhages and progressive cognitive decline. 2 key findings →
Participants: 251 Evidence: moderate
Full summary, score breakdown and related studies → Original source Free full text
Lecanemab (Leqembi®) is approved in the United States for the treatment of Alzheimer's disease (AD) to be initiated in early AD (mild cognitive impairment [MCI] due to AD or mild AD dementia) with confirmed brain amyloid pathology.
Full summary, score breakdown and related studies → Original source Free full text
Patients wore CPAP for 4.8 hours per night. 2 key findings →
Participants: 30 Evidence: high
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Several studies have shown that cognitive intervention may be beneficial for people with Alzheimer disease (AD), but literature reviews conducted so far, have yielded mixed and inconclusive results. 3 key findings →
Design: randomized controlled trial Evidence: high
Full summary, score breakdown and related studies → Original source Full text may need a subscription
Tensions exist between abstract ethical principles regarding decision-making "standards" and their translation into research decisions. 3 key findings →
Participants: 40 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
This paper is based on a presentation made during the Indiana Alzheimer Disease Center's Symposium on Mild Cognitive Impairment on April 19, 2008. 3 key findings →
Participants: 3,000 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Physostigmine demonstrated a statistically significant benefit compared with placebo on a clinical global rating of change and an objective test of cognitive function. 3 key findings →
Participants: 850 Evidence: high
Full summary, score breakdown and related studies → Original source Full text may need a subscription
One of the five patients with AD treated with LDRT experienced a temporary improvement in SNSB-II. 1 key finding →
Design: randomized controlled trial Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
The greatest advantage of the RSD proposed in this article is its ability to critically address the question on a DM effect. 1 key finding →
Design: longitudinal study Participants: 1,000 Evidence: high
Full summary, score breakdown and related studies → Original source Full text may need a subscription
The neuroprotective glial cell modulator propentofylline has been used in clinical trials involving more than 800 patients with vascular dementia (VaD). 3 key findings →
Participants: 800 Evidence: high
Full summary, score breakdown and related studies → Original source Full text may need a subscription
SiD represents a new resource for promoting safety among people with dementia, and high acceptability was achieved in a pilot trial. 2 key findings →
Design: clinical trial Participants: 203 Evidence: high
Full summary, score breakdown and related studies → Original source Free full text
Studies suggest that reminiscence strategies combined with an intergenerational approach may yield significant social and mental health benefits for participants. 4 key findings →
Design: randomized controlled trial Evidence: high
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 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 →