Evidence map›Paper›PMID 35015198›Full record

ArticleMetabolic brain disease2022

Plasma phosphorylated-tau181 levels reflect white matter microstructural changes across Alzheimer's disease progression.

Fardin Nabizadeh, Mahsa Pourhamzeh, Saghar Khani, Ayda Rezaei, Fatemeh Ranjbaran, Niloofar Deravi, ADNI

Abstract read
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In one paragraph

Article in Metabolic brain disease, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Tau in Alzheimer's disease: Shaping the future patient journey.The journal of prevention of Alzheimer's disease · 2026
    Review
  5. Article
  6. Article
  7. Locus coeruleus-entorhinal cortex tract integrity is linked to plasma tau and glial fibrillary acidic protein.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Fardin NabizadehSchool of Medicine, Iran University of Medical Sciences, Tehran, Iran. fardinnabizade1378@gmail.com.ORCID 0000-0002-4633-3340
Mahsa PourhamzehDivision of Neuroscience, Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran. Poorhamze.m@iums.ac.ir.
Saghar KhaniSchool of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Ayda RezaeiNeuroscience Research Group (NRG), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
Fatemeh RanjbaranSchool of Health Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran.
Niloofar DeraviStudent Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
ADNI
Iran University of Medical Sciences · IRShahid Beheshti University of Medical Sciences · IRUniversal Scientific Education and Research Network · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Alzheimer's Disease (AD) is characterized by cognitive impairments that hinder daily activities and lead to personal and behavioral problems. Plasma hyperphosphorylated tau protein at threonine 181 (p-tau181) has recently emerged as a new sensitive tool for the diagnosis of AD patients. We herein investigated the association of plasma P-tau181 and white matter (WM) microstructural changes in AD. We obtained data from a large prospective cohort of elderly individuals participating in the Alzheimer's Disease Neuroimaging Initiative (ADNI), which included baseline measurements of plasma P-tau181 and imaging findings. A subset of 41 patients with AD, 119 patients with mild cognitive impairments (MCI), and 43 healthy controls (HC) was included in the study, all of whom had baseline blood P-tau181 levels and had also undergone Diffusion Tensor Imaging. The analysis revealed that the plasma level of P-tau181 has a positive correlation with changes in Mean Diffusivity (MD), Radial Diffusivity (RD), and Axial Diffusivity (AxD), but a negative with Fractional Anisotropy (FA) parameters in WM regions of all participants. There is also a significant association between WM microstructural changes in different regions and P-tau181 plasma measurements within each MCI, HC, and AD group. In conclusion, our findings clarified that plasma P-tau181 levels are associated with changes in WM integrity in AD. P-tau181 could improve the accuracy of diagnostic procedures and support the application of blood-based biomarkers to diagnose WM neurodegeneration. Longitudinal clinical studies are also needed to demonstrate the efficacy of the P-tau181 biomarker and predict its role in structural changes.

Indexed as

Alzheimer DiseaseCognitive DysfunctionWhite MatterAgedBiomarkersDiffusion Tensor ImagingDisease ProgressionHumansProspective StudiesBiomarkersAlzheimer’s Diseasebiomarker, neurodegenerationP-tau181white matter

Identifiers

PMID35015198
OpenAlexW4205417237

What Socratic holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.