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Cerebrospinal Fluid p-Tau181/Amyloid Beta 42 Ratio Identifies Lymphatic-Venous Anastomosis Patients Who Respond to and Benefit from the Surgery for Relief of Cognitive Impairment with a Diagnostic Accuracy of 0.744
Guangqi Xu, Qinghua Zhang, Yinan Li, Anqi Du, Xiaona Xu, Ruyu Bai, Chao Bi, Yanxia Li et al.. ACS Omega, 2025-07-16
Topic: Brain proteins, microglia and lab models
High Resolution Image Download MS PowerPoint Slide Responders (R) and Non-Responders (NR) to lymphatic-venous anastomosis (LVA) surgery for relief of cognitive impairment show significant difference in their p-tau181/Aβ42 ratios via enzyme-linked immunosorbent assay (ELISA) of their cerebrospinal fluid (CSF). LVA involves the conjugation of a lymph vessel to a small vein in the neck to facilitate lymph flow. The R and NR groups were classified using five standard cognitive assessment tools: Mini-Mental State Examination (MMSE), Montreal Cognitive Assessment (MoCA), Alzheimer’s Disease Assessment Scale – Cognitive subscale (ADAS-Cog), Activities of Daily Living (ADL) and Clinical Dementia Rating (CDR), and augmented by clinical assessments. ELISA results for 43 patients were available. Welch’s t test and Mann–Whitney U-test revealed significant difference between R and NR’s p-tau181 value and p-tau181/Aβ42 ratio. Using a p-tau181/Aβ42 cutpoint of 0.0923 allows patient selection for LVA with a specificity of 0.800, sensitivity of 0.667, positive predictive value (PPV) of 0.706, and negative predictive value (NPV) of 0.769. The diagnostic accuracy is 0.744. The receiver operating characteristic (ROC) curve gives an area under the curve (AUC) of 0.793, which compares well with those of biomarker tests currently in use: prostate specific antigen (PSA), Straticyte and Oncotype DX. The p-tau181/Aβ42 ratio could serve to predict LVA’s effectiveness in alleviating AD patients’ symptoms and to rule-in patients for LVA, once validation from a larger patient cohort is available.
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APA 7th
Xu, G., Zhang, Q., Li, Y., Du, A., Xu, X., Bai, R., et al. (2025). Cerebrospinal Fluid p-Tau181/Amyloid Beta 42 Ratio Identifies Lymphatic-Venous Anastomosis Patients Who Respond to and Benefit from the Surgery for Relief of Cognitive Impairment with a Diagnostic Accuracy of 0.744. ACS Omega. https://doi.org/10.1021/acsomega.5c03650
Vancouver
Xu G, Zhang Q, Li Y, Du A, Xu X, Bai R, et al. Cerebrospinal Fluid p-Tau181/Amyloid Beta 42 Ratio Identifies Lymphatic-Venous Anastomosis Patients Who Respond to and Benefit from the Surgery for Relief of Cognitive Impairment with a Diagnostic Accuracy of 0.744. ACS Omega. 2025. doi:10.1021/acsomega.5c03650. PMID: 40757274.
BibTeX
@article{xu2025-40757274,
author = {Xu, Guangqi and Zhang, Qinghua and Li, Yinan and Du, Anqi and Xu, Xiaona and Bai, Ruyu and Bi, Chao and Li, Yanxia and others},
title = {{Cerebrospinal Fluid p-Tau181/Amyloid Beta 42 Ratio Identifies Lymphatic-Venous Anastomosis Patients Who Respond to and Benefit from the Surgery for Relief of Cognitive Impairment with a Diagnostic Accuracy of 0.744}},
journal = {ACS Omega},
year = {2025},
doi = {10.1021/acsomega.5c03650},
pmid = {40757274},
url = {https://doi.org/10.1021/acsomega.5c03650}
}
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.
Key findings
- High Resolution Image Download MS PowerPoint Slide Responders (R) and Non-Responders (NR) to lymphatic-venous anastomosis (LVA) surgery for relief of cognitive impairment show significant difference in their p-tau181/Aβ42 ratios via enzyme-linked immunosorbent assay (ELISA) of their cerebrospinal fluid (CSF).
- ELISA results for 43 patients were available.
- Welch’s t test and Mann–Whitney U-test revealed significant difference between R and NR’s p-tau181 value and p-tau181/Aβ42 ratio.
Why it matters
Among 43 patients, the CSF p-tau181/Aβ42 ratio differed between responders and non-responders to lymphatic-venous anastomosis surgery for cognitive impairment, with a diagnostic accuracy of 0.744. This small study is about selecting patients for a specific surgery and does not establish that the surgery treats or cures Alzheimer's disease.
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Study details
- Participants43
- Evidence strengthModerate
How this study scored 43/100
Published in a peer-reviewed journal. Scored zero for study design, effect reported and randomised / blinded because the record does not state it.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (ACS Omega) |
| Journal's citation record | 2 / 4 | ACS Omega: journal h-index 178 (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 | 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 | 4 / 5 | 2025 — within 3 year(s) of the newest study here |
| Sample size | 1 / 4 | 43 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 | 1 / 7 | Cited 3 times (OpenAlex, 2026-10-10) |
| Citations per year | 1 / 5 | 1.0 citations a year over 3 year(s) since 2025 |
| Impact for its field and year | 2 / 6 | Cited 1.1× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 0 / 6 | No other study in this library cites it |
| Still being cited | 1 / 4 | Cited 3 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | 1 / 4 | Last-listed author Zhaoyan Yu: h-index 12 (OpenAlex, whole career) |
| Institution's track record | 1 / 3 | University of Hong Kong: institution h-index 1,069 (OpenAlex) |
| Multi-centre collaboration | 2 / 3 | OpenAlex lists 4 institution(s) in 3 countries |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 40757274) |
| Free to read | 2 / 2 | Free to read |
| Total | 43 / 100 | — |
What each of these 20 components measures, and what this score is not →
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