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Research

31,780 Alzheimer's and dementia studies in plain English, each scored out of 100.

Find studies

Showing 1–25 of 25 studies by Blennow K of type cohort or longitudinal study · free to read · 31,780 in the whole library · How the 0–100 score works

Download bibliography of these 25 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; 17,251 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.

Association Between Longitudinal Plasma Neurofilament Light and Neurodegeneration in Patients With Alzheimer Disease

✓ Peer-reviewed alzhub usefulness score 76 out of 100. JAMA neurology 2019-07-01

The NfL level was increased at baseline in patients with mild cognitive impairment and AD dementia (mean levels: cognitive unimpairment, 32.1 ng/L; mild cognitive impairment, 37.9 ng/L; and AD dementia, 45.9 ng/L; P Conclusions and relevance The findings suggest that plasma NfL can be used as a noninvasive biomarker associated with neurodegeneration in patients with AD and may be useful to monitor effects in trials of disease-modifying drugs. 3 key findings →

Design: cohort study Participants: 1,583 Evidence: moderate

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

Longitudinal Associations of Blood Phosphorylated Tau181 and Neurofilament Light Chain With Neurodegeneration in Alzheimer Disease

✓ Peer-reviewed alzhub usefulness score 75 out of 100. JAMA neurology 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

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

CSF biomarkers of neuroinflammation and cerebrovascular dysfunction in early Alzheimer disease

✓ Peer-reviewed alzhub usefulness score 73 out of 100. Neurology 2018-07-27

Neuroinflammation and cerebrovascular dysfunction are early events occurring already at presymptomatic stages of AD and contribute to disease progression. 5 key findings →

Design: longitudinal study Participants: 508 Evidence: moderate

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

Detailed comparison of amyloid PET and CSF biomarkers for identifying early Alzheimer disease

✓ Peer-reviewed alzhub usefulness score 72 out of 100. Neurology 2015-09-09

The best CSF measures for identifying MCI-AD were Aβ42/total tau (t-tau) and Aβ42/hyperphosphorylated tau (p-tau) (area under the curve [AUC] 0.93-0.94). 3 key findings →

Design: longitudinal study Participants: 122 Evidence: moderate

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

Predicting clinical decline and conversion to Alzheimer's disease or dementia using novel Elecsys Aβ(1-42), pTau and tTau CSF immunoassays

✓ Peer-reviewed alzhub usefulness score 71 out of 100. Scientific reports 2019-12-13

We evaluated the performance of CSF biomarkers for predicting risk of clinical decline and conversion to dementia in non-demented patients with cognitive symptoms. 4 key findings →

Design: longitudinal study Participants: 619 Evidence: moderate

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

Plasma glial fibrillary acidic protein detects Alzheimer pathology and predicts future conversion to Alzheimer dementia in patients with mild cognitive impairment

✓ Peer-reviewed alzhub usefulness score 68 out of 100. Alzheimer's research & therapy 2021-03-27

Baseline plasma GFAP could detect abnormal CSF Aβ42/40 and CSF Aβ42/T-tau with an AUC of 0.79 (95% CI 0.72-0.86) and 0.80 (95% CI 0.72-0.86), respectively. 3 key findings →

Design: longitudinal study Evidence: moderate

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

Association of Chronic Kidney Disease With Plasma NfL and Other Biomarkers of Neurodegeneration: The H70 Birth Cohort Study in Gothenburg

✓ Peer-reviewed alzhub usefulness score 68 out of 100. Neurology 2023-05-24

In a community-based cohort of 70-year olds, P-NfL was associated with both prevalent and incident CKD, while CSF and/or imaging measures did not differ by CKD status. 3 key findings →

Design: cohort study Participants: 744 Evidence: moderate

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

Biomarker pattern of ARIA-E participants in phase 3 randomized clinical trials with bapineuzumab

✓ Peer-reviewed alzhub usefulness score 68 out of 100. Neurology 2018-02-02

Baseline biomarkers largely do not predict risk for developing ARIA-E. ARIA-E was associated with significant longitudinal changes in several biomarkers, with larger reductions in amyloid PET and CSF p-tau and t-tau concentrations, and paradoxically greater hippocampal volume reduction and ventricular enlargement, suggesting that ARIA-E in bapineuzumab-treated cases may be related to increased Aβ efflux from the brain and affecting downstream pathogenic processes. 4 key findings →

Design: longitudinal study Participants: 1,512 Evidence: moderate

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

Association of Cerebrospinal Fluid Neurofilament Light Concentration With Alzheimer Disease Progression

✓ Peer-reviewed alzhub usefulness score 67 out of 100. JAMA neurology 2016-01-01

Cerebrospinal fluid NFL concentration (median [interquartile range]) was higher in the AD dementia group (1479 [1134-1842] pg/mL), stable MCI group (no progression to AD during follow-up; 1182 [923-1687] pg/mL), and progressive MCI group (MCI with progression to AD dementia during follow-up; 1336 [1061-1693] pg/mL) compared with control participants (1047 [809-1265] pg/mL) (P Conclusions and relevance Cerebrospinal fluid NFL concentration is increased by the early clinical stage of AD and is associated with cognitive deterioration and structural brain changes over time. 2 key findings →

Design: longitudinal study Participants: 95 Evidence: moderate

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

Increased CSF neurogranin concentration is specific to Alzheimer disease

✓ Peer-reviewed alzhub usefulness score 66 out of 100. Neurology 2016-01-29

An optimized immunoassay was used to analyze CSF Ng in a retrospective cohort of 331 participants with different neurodegenerative diseases, including healthy controls (n = 19), biomarker-proven Alzheimer disease (AD) (n = 100), genetic AD (n = 2), behavioral variant frontotemporal dementia (n = 20), speech variant frontotemporal dementia (n = 21), Lewy body dementia (n = 13), Parkinson disease (n = 31), progressive supranuclear palsy (n = 46), multiple system atrophy (n = 29), as well as a heterogeneous group with non-neurodegenerative cognitive impairment (n = 50). 1 key finding →

Design: retrospective cohort Participants: 19 Evidence: moderate

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

Age and the association between apolipoprotein E genotype and Alzheimer disease: A cerebrospinal fluid biomarker-based case-control study

✓ Peer-reviewed alzhub usefulness score 66 out of 100. PLoS medicine 2020-08-20

The ε4 allele of apolipoprotein E (APOE) gene and increasing age are two of the most important known risk factors for developing Alzheimer disease (AD). 4 key findings →

Design: cohort study Participants: 1,593 Evidence: moderate

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

Blood-Based Biomarkers and Risk of Onset of Mild Cognitive Impairment Over the Short and Long Term

✓ Peer-reviewed alzhub usefulness score 65 out of 100. Neurology 2024-12-26

This study examined whether levels of blood biomarkers of amyloid (Aβ 42 /Aβ 40 ratio), tau (p-tau 181 ), neurodegeneration (NfL), and glial activation and neuroinflammation (glial fibrillary acidic protein [GFAP], YKL40, soluble triggering receptor expressed on myeloid cells 2 [sTREM2]) collected when participants were cognitively normal are associated with the time to onset of MCI. 5 key findings →

Design: longitudinal study Participants: 271 Evidence: moderate

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

Association of Choroid Plexus Volume With Serum Biomarkers, Clinical Features, and Disease Severity in Patients With Frontotemporal Lobar Degeneration Spectrum

✓ Peer-reviewed alzhub usefulness score 65 out of 100. Neurology 2023-07-27

Choroid plexus (ChP) is emerging as a key brain structure in the pathophysiology of neurodegenerative disorders. 4 key findings →

Design: longitudinal study Participants: 135 Evidence: moderate

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

Cerebral Amyloid Angiopathy and Downstream Alzheimer Disease Plasma Biomarkers

✓ Peer-reviewed alzhub usefulness score 62 out of 100. JAMA network open 2025-05-01

Lobar CMB counts and the presence of CAA were associated with downstream AD plasma biomarkers, including p-tau217 (β = 0.12 [95% CI, 0.05-0.18] and 0.29 [95% CI, 0.12-0.47], respectively), GFAP (β = 0.07 [95% CI, 0.03-0.12] and 0.20 [95% CI, 0.09-0.31], respectively), and NfL (β = 0.07 [95% CI, 0.03-0.11] and 0.16 [95% CI, 0.06-0.25], respectively) with and without the mediation of Aβ uptake on PET (indirect effect: lobar CMBs-p-tau217, 59.8% [β = 0.07 (95% CI, 0.03-0.11)]; lobar CMBs-GFAP, 49.3% [β = 0.04 (95% CI, 0.01-0.06)]; lobar CMBs-NfL, 20.9% [β = 0.01 (95% CI, 0.01-0.03)]; CAA-p-tau217, 50.9% [β = 0.15 (95% CI, 0.06-0.24)]; CAA-GFAP, 39.2% [β = 0.08 (95% CI, 0.03-0.13)]; CAA-NfL, 19.2% [β = 0.03 (95% CI, 0.01-0.05)]). 4 key findings →

Design: cohort study Participants: 1,708 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

Microglial activation protects against accumulation of tau aggregates in nondemented individuals with underlying Alzheimer's disease pathology

✓ Peer-reviewed alzhub usefulness score 60 out of 100. Nature aging 2022-11-28

The role of microglia in tau accumulation is currently unclear but could provide an important insight into the mechanisms underlying Alzheimer's disease (AD) 1 . 4 key findings →

Design: longitudinal study Evidence: moderate

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

Age-accelerated cognitive decline in asymptomatic adults with CSF β-amyloid

✓ Peer-reviewed alzhub usefulness score 60 out of 100. Neurology 2018-03-09

Compare cognitive and hippocampal volume trajectories in asymptomatic middle-aged and older adults with positive CSF markers of β-amyloid (Aβ) or tau to adults without an Alzheimer disease (AD)-associated biomarker profile. 4 key findings →

Design: cohort study Participants: 78 Evidence: moderate

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

Plasma phosphorylated tau (p-tau231) and total tau (t-tau) as prognostic markers of neurological outcome after cardiac arrest - a multicentre study

✓ Peer-reviewed alzhub usefulness score 53 out of 100. Resuscitation 2024-12-03

We studied the promising Alzheimer biomarker plasma tau phosphorylated at threonine 231 (p-tau231) in a cohort of cardiac arrest patients who survived to intensive care to predict long-term neurological outcomes. 4 key findings →

Design: cohort study Participants: 425 Evidence: moderate

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

Cerebrospinal fluid beta-amyloid 1-42 concentration may predict cognitive decline in older women

✓ Peer-reviewed alzhub usefulness score 53 out of 100. Journal of neurology, neurosurgery, and psychiatry 2006-11-10

Low levels of cerebrospinal fluid (CSF) beta-amyloid 1-42 (Abeta42) and high total tau (T-tau) are diagnostic for manifest Alzheimer's disease. 4 key findings →

Design: longitudinal study Evidence: moderate

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

Interactions between apolipoprotein E, sex, and amyloid-beta on cerebrospinal fluid p-tau levels in the European prevention of Alzheimer's dementia longitudinal cohort study (EPAD LCS)

✓ Peer-reviewed alzhub usefulness score 51 out of 100. EBioMedicine 2022-08-27

The apolipoprotein E (APOE)ε4 allele is the strongest genetic risk factor for late-onset AD and is associated with aberrant cerebrospinal fluid levels (CSF) of total tau (t-tau), phosphorylated tau (p-tau), and amyloid-β (Aβ). 4 key findings →

Design: cohort study Evidence: moderate

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

Prognostic Value of A/T/N Biomarkers: Comparing Plasma and Imaging Modalities in Alzheimer Disease

✓ Peer-reviewed alzhub usefulness score 45 out of 100. Clinical nuclear medicine 2025-09-01

Alzheimer disease (AD) is characterized by amyloid-β plaques (A), tau tangles (T), and neurodegeneration (N), collectively defining the ATN framework. 4 key findings →

Design: longitudinal study Evidence: moderate

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
  • Randomized / 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
  • Multicenter 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 31,780 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 31,780 records, built mostly from automated pulls of Europe PMC (66% of the library) and OpenAlex (16%), 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.

1,052 records (3.3% of the library) are not peer-reviewed — 973 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    Where this research is being discussed: events