Observational epidemiological studies have shown a positive association between hypertension and risk of incident dementia; however, the effects of antihypertensive therapy on cognitive function in controlled trials have been conflicting, and meta-analyses of the trials have not provided clear evidence of whether antihypertensive treatment reduces dementia incidence. 5 key findings →
Design: meta-analysis
Participants: 1,687
Evidence: high
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The neuropathological confirmation of amyloid-β (Aβ) plaques and tau neurofibrillary tangles (NFT) remains the gold standard for a definitive diagnosis of Alzheimer's disease (AD). 4 key findings →
Design: longitudinal study
Participants: 115
Evidence: moderate
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Whilst cerebrospinal fluid (CSF) and positron emission tomography (PET) biomarkers for amyloid-β (Aβ) and tau pathologies are accurate for the diagnosis of Alzheimer's disease (AD), their broad implementation in clinical and trial settings are restricted by high cost and limited accessibility. 3 key findings →
Design: longitudinal study
Participants: 1,000
Evidence: moderate
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76/100
✓ Peer-reviewed
alzhub usefulness score 76 out of 100.
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JAMA neurology
·
2025-03-03
Mounting evidence in adults without AD indicates that females exhibit higher tau deposition than age-matched males, particularly in the setting of elevated β-amyloid (Aβ), but the evidence for sex differences in tau accumulation rates is inconclusive. 5 key findings →
Design: meta-analysis
Participants: 1,376
Evidence: high
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Occupational therapy improved patients' daily functioning and reduced the burden on the care giver, despite the patients' limited learning ability. 2 key findings →
Design: randomized controlled trial
Participants: 135
Evidence: high
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An estimated 8.8 million Indians older than 60 years have dementia. 2 key findings →
Design: longitudinal study
Participants: 2,528
Evidence: moderate
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As a result, physicians struggle to interpret these models, and feel it is hard to trust them. 1 key finding →
Participants: 1,048
Evidence: low
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76/100
✓ Peer-reviewed
alzhub usefulness score 76 out of 100.
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JAMA neurology
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2020-11-01
Of 1583 articles, data subjected from the 24 studies (including 3562 patients who experienced delirium and 6987 controls who did not) were included in a random-effects meta-analysis for pooled effect estimates and random-effects meta-regressions to identify sources of study variance. 3 key findings →
Design: systematic review
Participants: 3,562
Evidence: high
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76/100
✓ Peer-reviewed
alzhub usefulness score 76 out of 100.
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Nature medicine
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2022-11-10
A major unanswered question in the dementia field is whether cognitively unimpaired individuals who harbor both Alzheimer's disease neuropathological hallmarks (that is, amyloid-β plaques and tau neurofibrillary tangles) can preserve their cognition over time or are destined to decline. 3 key findings →
Participants: 1,325
Evidence: low
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76/100
✓ Peer-reviewed
alzhub usefulness score 76 out of 100.
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JAMA network open
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2025-03-03
Age, sex, and apolipoprotein E (APOE) are the strongest risk factors for late-onset Alzheimer disease (AD). 4 key findings →
Design: meta-analysis
Participants: 4,592
Evidence: high
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Masitinib is an orally administered tyrosine kinase inhibitor that targets activated cells of the neuroimmune system (mast cells and microglia). 4 key findings →
Participants: 182
Evidence: high
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133 systematic reviews (2,724 RCTs and 258 279 participants) were included. 5 key findings →
Design: meta-analysis
Participants: 279
Evidence: high
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76/100
✓ Peer-reviewed
alzhub usefulness score 76 out of 100.
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JAMA
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2025-06-16
Among the 6514 participants (mean age, 69.5 years; 50.5% female), median follow-up time ranged from 1.5 to 4.0 years. 5 key findings →
Design: longitudinal study
Participants: 6,514
Evidence: moderate
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75/100
✓ Peer-reviewed
alzhub usefulness score 75 out of 100.
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JAMA neurology
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2017-05-01
Among 193 cognitively healthy controls, 197 patients with mild cognitive impairment, and 180 patients with AD with dementia, plasma NFL correlated with CSF NFL (Spearman ρ = 0.59, P Conclusions and relevance Plasma NFL is associated with AD diagnosis and with cognitive, biochemical, and imaging hallmarks of the disease. 3 key findings →
Design: case-control study
Participants: 197
Evidence: moderate
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75/100
✓ Peer-reviewed
alzhub usefulness score 75 out of 100.
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JAMA neurology
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2021-12-01
This study suggests that plasma GFAP is a sensitive biomarker for detecting and tracking reactive astrogliosis and Aβ pathology even among individuals in the early stages of AD. 5 key findings →
Design: cross-sectional
Participants: 300
Evidence: moderate
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75/100
✓ Peer-reviewed
alzhub usefulness score 75 out of 100.
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JAMA neurology
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2021-02-01
Of 490 participants, 251 were women (51.2%) and the mean (SD) age was 65.9 (13.1) years. 4 key findings →
Design: cohort study
Participants: 225
Evidence: moderate
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75/100
✓ Peer-reviewed
alzhub usefulness score 75 out of 100.
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JAMA neurology
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2021-04-01
Exclusion criteria included any significant neurologic disorder other than suspected AD; presence of infection, infarction, or multiple lacunes as detected by magnetic resonance imaging; and any significant systemic condition that could lead to difficulty complying with the protocol. 3 key findings →
Design: cohort study
Participants: 1,113
Evidence: moderate
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75/100
✓ Peer-reviewed
alzhub usefulness score 75 out of 100.
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JAMA
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2017-04-01
An increasing number of midlife vascular risk factors was significantly associated with elevated amyloid SUVR; this association was not significant for late-life risk factors. 5 key findings →
Design: cohort study
Participants: 20
Evidence: moderate
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75/100
✓ Peer-reviewed
alzhub usefulness score 75 out of 100.
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Neurology
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2014-06-13
Significant proportions of the observed variance in age at symptom onset in ADAD can be explained by family history and mutation type, providing empirical support for use of these data to estimate onset in clinical research. 2 key findings →
Participants: 3,275
Evidence: low
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Median follow-up increased from 2.0 years in the double-blind trial to 3.9 years overall. 2 key findings →
Participants: 1,485
Evidence: high
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75/100
✓ Peer-reviewed
alzhub usefulness score 75 out of 100.
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JAMA
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2003-10-01
Exercise training for patients with Alzheimer disease combined with teaching caregivers how to manage behavioral problems may help decrease the frailty and behavioral impairment that are often prevalent in patients with Alzheimer disease. 1 key finding →
Design: randomized controlled trial
Evidence: high
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Original source
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75/100
✓ Peer-reviewed
alzhub usefulness score 75 out of 100.
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Neurology
·
2011-07-27
Simvastatin had no benefit on the progression of symptoms in individuals with mild to moderate AD despite significant lowering of cholesterol. 4 key findings →
Participants: 406
Evidence: high
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There is moderate-to-strong support that PA benefits cognitive functioning during early and late periods of the life span and in certain populations characterized by cognitive deficits. 3 key findings →
Design: meta-analysis
Evidence: high
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The overall weighted PAF for potentially modifiable risk factors for dementia was 39·5% (95% CI 37·5-41·6) in China (n=2162 participants), 41·2% (39·1-43·4) in India (n=2004), and 55·8% (54·9-56·7) in our Latin American sample (n=12 865). 2 key findings →
Design: meta-analysis
Participants: 2,162
Evidence: high
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Main results Seventeen trials with 1067 participants met the inclusion criteria. 5 key findings →
Design: meta-analysis
Participants: 1,067
Evidence: high
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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 29,780 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.