Get help now — free helplines

You can call any of these for free. You do not need a diagnosis, an appointment, or a crisis to call — questions and plain exhaustion are reasons enough.

  • Alzheimer's Association 24/7 Helpline 800-272-3900 24 hours a day, 365 days a year Free, confidential support and information for people with dementia, caregivers, families and the public. Master's-level clinicians. Also Spanish.
  • 988 Suicide & Crisis Lifeline 988 24/7 Call or text 988, or chat at 988lifeline.org. For anyone in emotional distress or a mental-health crisis, including caregivers.
  • Alzheimer's Foundation of America (AFA) Helpline 866-232-8484 9:00 am - 9:00 pm ET, seven days a week Licensed social workers providing support, info and referrals. Also text message and web chat. Text: 646-586-5283

In a medical emergency, call 911. More numbers, and what each line does, on the help page.

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 58 out of 100. Biomarkers

Topic: Amyloid, tau and blood-test diagnosis

Results In total, 2,257 participants were included in the analysis (median age 71.7, 61.8% women, 55.2% with high educational levels). Discussion This comprehensive analysis demonstrated that the variance in AD blood biomarker concentrations was mainly explained by age, with minor contributions from cognition, brain atrophy, and genetics, conversely to CSF measures. These results challenge the use of blood biomarkers as isolated stand-alone biomarkers for AD.

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

APA 7th

Bouteloup, V., Pellegrin, I., Dubois, B., Chene, G., Planche, V., Dufouil, C., et al. (2024). Explaining the Variability of Alzheimer Disease Fluid Biomarker Concentrations in Memory Clinic Patients Without Dementia. Neurology. https://doi.org/10.1212/wnl.0000000000209219

Vancouver

Bouteloup V, Pellegrin I, Dubois B, Chene G, Planche V, Dufouil C, et al. Explaining the Variability of Alzheimer Disease Fluid Biomarker Concentrations in Memory Clinic Patients Without Dementia. Neurology. 2024. doi:10.1212/wnl.0000000000209219. PMID: 38527237.

BibTeX

@article{bouteloup2024-38527237,
  author  = {Bouteloup, V. and Pellegrin, I. and Dubois, B. and Chene, G. and Planche, V. and Dufouil, C. and {MEMENTO Study Group}},
  title   = {{Explaining the Variability of Alzheimer Disease Fluid Biomarker Concentrations in Memory Clinic Patients Without Dementia}},
  journal = {Neurology},
  year    = {2024},
  doi     = {10.1212/wnl.0000000000209219},
  pmid    = {38527237},
  url     = {https://doi.org/10.1212/wnl.0000000000209219}
}

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 names 7 authors; APA and Vancouver show the first six, BibTeX and the downloads carry all of them. Check the citation against the original before you use it.

Key findings

Why it matters

This analysis found that age explained most of the variation in Alzheimer's blood biomarker levels, with only minor contributions from cognition, brain atrophy, and genetics. The authors conclude that blood biomarkers should not be used as stand-alone tests, and the study does not address treatment, cure, or prevention.

Study details

How this study scored 58/100
How this study's score is builtJournal tier 9 of 10; Journal's citation record 4 of 4; Study design 0 of 12; Strength of evidence 1 of 5; Peer-review validation 10 of 10; How recent 4 of 5; Sample size 3 of 4; Effect reported 2 of 3; Studied in people 3 of 3; Randomised / blinded 0 of 2; Times cited 3 of 7; Citations per year 2 of 5; Impact for its field and year 3 of 6; Cited by studies here 2 of 6; Still being cited 2 of 4; Senior author's track record left out, no data; Institution's track record 2 of 3; Multi-centre collaboration 2 of 3; Indexed in PubMed 2 of 2; Free to read 2 of 2. 56 of the 96 points it could be judged on, which is 58 of 100. Total 58 of 100.56 of the 96 points we could judge = 58 of 100

Published in a leading specialty journal. Scored zero for study design and randomised / blinded because the record does not state it. We have no data on senior author's track record, so that was left out: it earned 56 of the 96 points we could judge it on, which is 58 out of 100.

ComponentPointsWhy
Journal tier 9 / 10 Tier 2 — leading specialty journal (Neurology)
Journal's citation record 4 / 4 Neurology: journal h-index 525 (OpenAlex, 2026-10-29)
Study design 0 / 12 No study design recorded — scores zero, not guessed (not stated in the record — scored 0)
Strength of evidence 1 / 5 Rated “low” in our summary
Peer-review validation 10 / 10 Peer-reviewed. Published as an article in a named peer-reviewed journal.
How recent 4 / 5 2024 — within 3 year(s) of the newest study here
Sample size 3 / 4 2,323 participants
Effect reported 2 / 3 Effect reported as a number, without an interval or test
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 3 / 7 Cited 19 times (OpenAlex, 2026-10-10)
Citations per year 2 / 5 4.8 citations a year over 4 year(s) since 2024
Impact for its field and year 3 / 6 Cited 5.2× the average for papers of its field and year (OpenAlex FWCI)
Cited by studies here 2 / 6 Cited by 4 other studies in this library
Still being cited 2 / 4 Cited 19 times in 2024–2026 (2026 still in progress; OpenAlex)
Senior author's track record — / 4 Senior author's record not available — left out of this score
Institution's track record 2 / 3 Inserm: institution h-index 1,988 (OpenAlex)
Multi-centre collaboration 2 / 3 OpenAlex lists 6 institution(s) in 1 country
Indexed in PubMed 2 / 2 Indexed in PubMed (PMID 38527237)
Free to read 2 / 2 Free to read
Points 56 / 96 Scored on 19 of 20 parts. We have no data for the rest, so they are left out: 56 of the 96 points we could judge it on is 58 out of 100.
Total 58 / 100 —

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

Read the original

Full text: free to read — OpenAlex lists this copy as free to read: the link above (checked 6 Feb 1020).

Studies this one cites

Referenced by this study and also in the alzhub library, so you can read them here. Showing 12 of 14.

Later studies that cite this one

4 studies in the alzhub library list this one in their references.

Related studies in Biomarkers

Also tagged “cerebrospinal”

821 studies in the library carry the topic tag “cerebrospinal”; these are this study's neighbours in a fixed, alphabetical-by-hash tour of them, not the closest in content. All 821 tagged studies.

Similar studies

More on Biomarkers

See all studies in Biomarkers →