74/100
✓ Peer-reviewed
alzhub usefulness score 74 out of 100.
·
JAMA neurology
·
2020-12-01
Compared with participants who learned that they had a not elevated amyloid result, individuals who learned of an elevated amyloid result were no more likely to experience short-term increases in depression (mean [SD] change in the Geriatric Depression Scale score, 0.02 [1.3] vs 0.04 [1.3]; P = .90), anxiety (mean [SD] change in State-Trait Anxiety Inventory score, -0.02 [3.2] vs -0.15 [3.0]; P = .65), or suicidality (mean [SD] change in the Columbia Suicide Severity Rating Scale score, 0.0 [0.4] vs -0.01 [0.5]; P = .67). 5 key findings →
Design: cohort study
Participants: 1,167
Evidence: high
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The Alzheimer's Disease Neuroimaging Initiative (ADNI) is a longitudinal multisite observational study of healthy elders, mild cognitive impairment (MCI), and Alzheimer's disease. 5 key findings →
Design: longitudinal study
Evidence: moderate
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71/100
✓ Peer-reviewed
alzhub usefulness score 71 out of 100.
·
JAMA
·
2001-11-01
Progressive dementia was detected by PET with a sensitivity of 93% (191/206) and a specificity of 76% (59/78). 4 key findings →
Design: longitudinal study
Participants: 146
Evidence: moderate
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Alzheimer's disease (AD) is a progressive neurodegenerative condition marked by a decline in cognitive functions with no validated disease modifying treatment. 1 key finding →
Design: cross-sectional
Evidence: moderate
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We set out to determine factors that influence the rate of brain atrophy in 1-year longitudinal magnetic resonance imaging (MRI) data. 1 key finding →
Design: longitudinal study
Participants: 363
Evidence: moderate
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63/100
✓ Peer-reviewed
alzhub usefulness score 63 out of 100.
·
NeuroImage
·
2009-04-01
Tensor-based morphometry can recover three-dimensional longitudinal brain changes over time by nonlinearly registering baseline to follow-up MRI scans of the same subject. 2 key findings →
Design: longitudinal study
Participants: 20
Evidence: moderate
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The neuropsychologic test battery from the Uniform Data Set (UDS) of the Alzheimer's Disease Centers (ADC) program of the National Institute on Aging consists of brief measures of attention, processing speed, executive function, episodic memory, and language. 2 key findings →
Design: longitudinal study
Evidence: moderate
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We report the first detailed population-based maps of cortical gray matter loss in Alzheimer's disease (AD), revealing prominent features of early structural change. 4 key findings →
Design: longitudinal study
Participants: 46
Evidence: moderate
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61/100
✓ Peer-reviewed
alzhub usefulness score 61 out of 100.
·
NeuroImage
·
2004-08-01
We developed an anatomical mapping technique to detect hippocampal and ventricular changes in Alzheimer disease (AD). 5 key findings →
Design: longitudinal study
Evidence: moderate
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60/100
✓ Peer-reviewed
alzhub usefulness score 60 out of 100.
·
JAMA neurology
·
2014-09-01
Resting-state functional connectivity magnetic resonance imaging changes with progressing AD severity are similar between ADAD and LOAD. 2 key findings →
Design: cross-sectional
Participants: 79
Evidence: moderate
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Smaller hippocampi and specifically CA1 and subicular involvement are associated with increased risk for conversion from MCI to AD. 5 key findings →
Design: cohort study
Evidence: moderate
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59/100
✓ Peer-reviewed
alzhub usefulness score 59 out of 100.
·
Neurology
·
2013-09-18
Atrophy in FAD is observed early, both in areas commonly associated with sporadic Alzheimer disease and also in the putamen and thalamus, 2 regions associated with early amyloid deposition in FAD mutation carriers. 4 key findings →
Design: cross-sectional
Participants: 192
Evidence: low
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Measures are needed that identify persons that will develop Alzheimer's disease in order to target them for preventative interventions. 4 key findings →
Design: cross-sectional
Participants: 20
Evidence: low
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57/100
✓ Peer-reviewed
alzhub usefulness score 57 out of 100.
·
NeuroImage
·
2008-07-22
In one of the largest brain MRI studies to date, we used tensor-based morphometry (TBM) to create 3D maps of structural atrophy in 676 subjects with Alzheimer's disease (AD), mild cognitive impairment (MCI), and healthy elderly controls, scanned as part of the Alzheimer's Disease Neuroimaging Initiative (ADNI). 4 key findings →
Participants: 676
Evidence: low
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57/100
✓ Peer-reviewed
alzhub usefulness score 57 out of 100.
·
NeuroImage
·
2008-11-08
As one of the earliest structures to degenerate in Alzheimer's disease (AD), the hippocampus is the target of many studies of factors that influence rates of brain degeneration in the elderly. 4 key findings →
Participants: 490
Evidence: low
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57/100
✓ Peer-reviewed
alzhub usefulness score 57 out of 100.
·
NeuroImage
·
2009-07-14
Tensor-based morphometry (TBM) is a powerful method to map the 3D profile of brain degeneration in Alzheimer's disease (AD) and mild cognitive impairment (MCI). 4 key findings →
Design: longitudinal study
Evidence: moderate
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Imaging and postmortem studies suggest that frontal lobe white matter (FLWM) volume expands until about the age of 44.6 years and then declines. 4 key findings →
Design: cross-sectional
Participants: 34
Evidence: low
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Magnetic resonance (MR) imaging is used widely for assessment of patients with cognitive impairment, but the pathological correlates are unclear, especially when multiple pathologies are present. 4 key findings →
Participants: 93
Evidence: moderate
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55/100
✓ Peer-reviewed
alzhub usefulness score 55 out of 100.
·
JAMA neurology
·
2014-01-01
Infant ε4 carriers had lower MWF and GMV measurements than noncarriers in precuneus, posterior/middle cingulate, lateral temporal, and medial occipitotemporal regions, areas preferentially affected by AD, and greater MWF and GMV measurements in extensive frontal regions and measurements were also significant in the subset of 2- to 6-month-old infants (MWF differences, P Conclusions and relevance While our findings should be considered preliminary, this study demonstrates some of the earliest brain changes associated with the genetic predisposition to AD. 1 key finding →
Design: cross-sectional
Evidence: low
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Alzheimer disease (AD) is the most common form of dementia worldwide. 4 key findings →
Design: cross-sectional
Participants: 24
Evidence: moderate
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We used a new method we developed for automated hippocampal segmentation, called the auto context model, to analyze brain MRI scans of 400 subjects from the Alzheimer's disease neuroimaging initiative. 4 key findings →
Participants: 400
Evidence: low
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This prospective, observational study enrolled patients with early AD undergoing Alzheimer's biomarker analysis and matched controls. 4 key findings →
Design: longitudinal study
Participants: 15
Evidence: moderate
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50/100
✓ Peer-reviewed
alzhub usefulness score 50 out of 100.
·
Neurology
·
2013-12-18
Concordance between scan results and baseline diagnosis was high (PiB 84%, FDG 82%). 4 key findings →
Participants: 24
Evidence: low
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50/100
✓ Peer-reviewed
alzhub usefulness score 50 out of 100.
·
NeuroImage
·
2008-02-21
Tensor-based morphometry (TBM) creates three-dimensional maps of disease-related differences in brain structure, based on nonlinearly registering brain MRI scans to a common image template. 4 key findings →
Participants: 120
Evidence: low
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MRI research examining structural brain atrophy in Alzheimer's disease (AD) generally focuses on medial temporal and cortical structures, but amyloid and tau deposits also accumulate in the caudate. 4 key findings →
Evidence: low
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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 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.