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This page is alzhub.org's plain-English summary of a published study, not the paper itself. It is generated from the record we hold for this study, sourced and linked below — check the original for the full text and methods.

✓ Peer-reviewed alzhub usefulness score 71 out of 100. Biomarkers

Topic: Amyloid, tau and blood-test diagnosis

These two conclusions support a dynamic biomarker model in which Alzheimer's disease is characterized first by the appearance of amyloidosis and later by tauopathy, with tauopathy being the proteinopathy associated with clinical symptoms.

Key findings

Why it matters

This work supports a model in which amyloid appears first and tauopathy later, with tauopathy linked to clinical symptoms. It describes the sequence of brain changes in Alzheimer's disease and does not offer a treatment, cure, or prevention.

Study details

How this study scored 71/100
How this study's score is builtJournal tier 9 of 10; Journal's citation record 4 of 4; Study design 7 of 12; Strength of evidence 3 of 5; Peer-review validation 10 of 10; How recent 2 of 5; Sample size 3 of 4; Effect reported 0 of 3; Studied in people 3 of 3; Randomised / blinded 0 of 2; Times cited 5 of 7; Citations per year 4 of 5; Impact for its field and year 4 of 6; Cited by studies here 3 of 6; Still being cited 3 of 4; Senior author's track record 4 of 4; Institution's track record 2 of 3; Multi-centre collaboration 1 of 3; Indexed in PubMed 2 of 2; Free to read 2 of 2. Total 71 of 100.71 of 100 points earned29 not earned

Published in a leading specialty journal, and it is a longitudinal study following the same people over time. Scored zero for effect reported and randomised / blinded because the record does not state it.

ComponentPointsWhy
Journal tier 9 / 10 Tier 2 — leading specialty journal (Brain : a journal of neurology)
Journal's citation record 4 / 4 Brain: journal h-index 503 (OpenAlex, 2026-10-29)
Study design 7 / 12 A longitudinal study following the same people over time
Strength of evidence 3 / 5 Rated “moderate” in our summary
Peer-review validation 10 / 10 Peer-reviewed. Published as an article in a named peer-reviewed journal.
How recent 2 / 5 2019 — within 10 year(s) of the newest study here
Sample size 3 / 4 1,343 participants
Effect reported 0 / 3 No effect size reported — scores zero (not stated in the record — scored 0)
Studied in people 3 / 3 Studied in people (participant count stated)
Randomised / blinded 0 / 2 No randomisation or blinding stated — scores zero (not stated in the record — scored 0)
Times cited 5 / 7 Cited 199 times (OpenAlex, 2026-10-10)
Citations per year 4 / 5 22.1 citations a year over 9 year(s) since 2019
Impact for its field and year 4 / 6 Cited 17.0× the average for papers of its field and year (OpenAlex FWCI)
Cited by studies here 3 / 6 Cited by 17 other studies in this library
Still being cited 3 / 4 Cited 67 times in 2024–2026 (2026 still in progress; OpenAlex)
Senior author's track record 4 / 4 Last-listed author Ronald Carl Petersen: h-index 209 (OpenAlex, whole career)
Institution's track record 2 / 3 Mayo Clinic: institution h-index 1,606 (OpenAlex)
Multi-centre collaboration 1 / 3 OpenAlex lists 2 institution(s) in 1 country
Indexed in PubMed 2 / 2 Indexed in PubMed (PMID 31501889)
Free to read 2 / 2 Free to read
Total 71 / 100 —

What each of these 20 components measures, and what this score is not →

Read the original

Full text: free to read — PubMed Central lists this copy as free to read: the link above (checked 10 Oct 2026).

Cite this study APA, Vancouver, BibTeX · download .bib or .ris

Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. The record's author list ends in “et al.”, so not every author is named. Check the citation against the original before you use it.

APA 7th

Jack, C. R., Wiste, H. J., Botha, H., Weigand, S. D., Therneau, T. M., Knopman, D. S., et al. (2019). The bivariate distribution of amyloid-β and tau: relationship with established neurocognitive clinical syndromes. Brain : a journal of neurology. https://doi.org/10.1093/brain/awz268

Vancouver

Jack CR, Wiste HJ, Botha H, Weigand SD, Therneau TM, Knopman DS, et al. The bivariate distribution of amyloid-β and tau: relationship with established neurocognitive clinical syndromes. Brain : a journal of neurology. 2019. doi:10.1093/brain/awz268. PMID: 31501889.

BibTeX

@article{jack2019-31501889,
  author  = {Jack, C. R. and Wiste, H. J. and Botha, H. and Weigand, S. D. and Therneau, T. M. and Knopman, D. S. and Graff-Radford, J. and Jones, D. T. and others},
  title   = {{The bivariate distribution of amyloid-β and tau: relationship with established neurocognitive clinical syndromes}},
  journal = {Brain : a journal of neurology},
  year    = {2019},
  doi     = {10.1093/brain/awz268},
  pmid    = {31501889},
  url     = {https://doi.org/10.1093/brain/awz268}
}

Studies this one cites

Referenced by this study and also in the alzhub library, so you can read them here. Showing 12 of 59.

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