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Potential association between frailty and pTau in community-dwelling older adults
Zhou L, Shi H, Cheng R, Ge M, Hu F, Hou L, Xia X, Liu X et al.. BMC geriatrics, 2022-09-26
Topic: Risk, prevention and care in population studies
Results Among the 12 biomarkers, only pTau was higher in frail individuals than in their not-frail peers (471.3 ± 58.1 pg/mL vs. 451.9 ± 61.1 pg/mL, p = 0.022). No other biomarkers had any significant association with frailty, including total-Tau (tTau), neurofilament light (NFL), amyloid-β 40 (Aβ40), amyloid-β 40 (Aβ42), S100 calcium binding protein B (S100B), visinin-like protein 1 (VLP-1), Alzheimer-associated neuronal thread protein (AD7cNTP), β-amyloid precursor protein (βAPP), chitinase-3-like-1 (CHI3L1), soluble complement receptor 1 (sCR1) and heart-type fatty acid binding protein (hFABP). Significantly higher levels of pTau were observed in those who were positive for the criteria of low grip strength (451.2 ± 61.4 pg/mL vs. 469.1 ± 57.6 pg/mL, p = 0.019), exhaustion (451.2 ± 61.6 pg/mL vs. 466.4 ± 58.4 pg/mL, p = 0.035) and low physical activity (451.1 ± 60.7 pg/mL vs. 465.7 ± 60.7 pg/mL, p = 0.034) when compared to those who were negative for each corresponding criterion. Finally, in the multivariable-adjusted analysis, the association between pTau and frailty was statistically significantly associated (OR: 1.40, 95% CI: 1.04-1.89), even after adjusting.
Key findings
- Results Among the 12 biomarkers, only pTau was higher in frail individuals than in their not-frail peers (471.3 ± 58.1 pg/mL vs. 451.9 ± 61.1 pg/mL, p = 0.022).
- No other biomarkers had any significant association with frailty, including total-Tau (tTau), neurofilament light (NFL), amyloid-β 40 (Aβ40), amyloid-β 40 (Aβ42), S100 calcium binding protein B (S100B), visinin-like protein 1 (VLP-1), Alzheimer-associated neuronal thread protein (AD7cNTP), β-amyloid precursor protein (βAPP), chitinase-3-like-1 (CHI3L1), soluble complement receptor 1 (sCR1) and heart-type fatty acid binding protein (hFABP).
- Significantly higher levels of pTau were observed in those who were positive for the criteria of low grip strength (451.2 ± 61.4 pg/mL vs. 469.1 ± 57.6 pg/mL, p = 0.019), exhaustion (451.2 ± 61.6 pg/mL vs. 466.4 ± 58.4 pg/mL, p = 0.035) and low physical activity (451.1 ± 60.7 pg/mL vs. 465.7 ± 60.7 pg/mL, p = 0.034) when compared to those who were negative for each corresponding criterion.
- Finally, in the multivariable-adjusted analysis, the association between pTau and frailty was statistically significantly associated (OR: 1.40, 95% CI: 1.04-1.89), even after adjusting.
Why it matters
Among 12 blood markers, only pTau was higher in frail older adults than in those not frail, and it was linked to low grip strength, exhaustion, and low physical activity. The study only describes an association with frailty and does not test any treatment, cure, or prevention.
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Study details
- Study designlongitudinal study
- Participants313
- Effect sizeOR: 1.40
- Evidence strengthModerate
How this study scored 59/100
Published in a peer-reviewed journal, and it is a longitudinal study following the same people over time. Scored zero for randomised / blinded because the record does not state it.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (BMC geriatrics) |
| Journal's citation record | 2 / 4 | BMC Geriatrics: journal h-index 153 (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 | 3 / 5 | 2022 — within 6 year(s) of the newest study here |
| Sample size | 2 / 4 | 313 participants |
| Effect reported | 3 / 3 | Effect reported with a statistic (interval, p-value, ratio or similar) |
| 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 20 times (OpenAlex, 2026-10-10) |
| Citations per year | 2 / 5 | 3.3 citations a year over 6 year(s) since 2022 |
| Impact for its field and year | 2 / 6 | Cited 1.6× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 1 / 6 | Cited by 2 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 | 3 / 4 | Last-listed author Birong Dong: h-index 52 (OpenAlex, whole career) |
| Institution's track record | 1 / 3 | University of Pittsburgh: institution h-index 1,470 (OpenAlex) |
| Multi-centre collaboration | 1 / 3 | OpenAlex lists 3 institution(s) in 2 countries |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 36162981) |
| Free to read | 2 / 2 | Free to read |
| Total | 59 / 100 | — |
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Read the original
Full text: free to read — OpenAlex lists this copy as free to read: the link above (checked 6 Feb 1020).
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
Zhou, L., Shi, H., Cheng, R., Ge, M., Hu, F., Hou, L., et al. (2022). Potential association between frailty and pTau in community-dwelling older adults. BMC geriatrics. https://doi.org/10.1186/s12877-022-03454-0
Vancouver
Zhou L, Shi H, Cheng R, Ge M, Hu F, Hou L, et al. Potential association between frailty and pTau in community-dwelling older adults. BMC geriatrics. 2022. doi:10.1186/s12877-022-03454-0. PMID: 36162981.
BibTeX
@article{zhou2022-36162981,
author = {Zhou, L. and Shi, H. and Cheng, R. and Ge, M. and Hu, F. and Hou, L. and Xia, X. and Liu, X. and others},
title = {{Potential association between frailty and pTau in community-dwelling older adults}},
journal = {BMC geriatrics},
year = {2022},
doi = {10.1186/s12877-022-03454-0},
pmid = {36162981},
url = {https://doi.org/10.1186/s12877-022-03454-0}
}
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