Evidence map›Paper›PMID 40205301›Full record

ArticleCurrent medical science2025

A Simple Modification Results in a Significant Improvement in Measuring the Size of Extracellular Vesicles.

Xiao-Jun Liu, Zhen-Sheng Ma, Yan Li, Tai-Bing Fan, Zhen-Wei Ge, Zhi-Jun Ou, Jing-Song Ou

Abstract read
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Article in Current medical science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Circulating Extracellular Vesicles Predict Complications after Cardiac Surgery.Journal of cardiovascular translational research · 2025
    Review
  2. Review
  3. Extracellular vesicles: key mediators inFrontiers in veterinary science · 2025
    Review
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.

Xiao-Jun Liu *Division of Cardiac Surgery, Cardiovascular Diseases Institute, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
Zhen-Sheng Ma *Division of Cardiac Surgery, Cardiovascular Diseases Institute, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
Yan LiDivision of Cardiac Surgery, Cardiovascular Diseases Institute, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
Tai-Bing FanDepartment of Children Heart Center, Fuwai Central China Cardiovascular Hospital, Central China Fuwai Hospital of Zhengzhou University, Zhengzhou, 450000, China.
Zhen-Wei GeDepartment of Adult Heart Center, Fuwai Central China Cardiovascular Hospital, Central China Fuwai Hospital of Zhengzhou University, Zhengzhou, 450000, China.
Zhi-Jun OuNational-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, NHC Key Laboratory of Assisted Circulation (Sun Yat-sen University), Key Laboratory of Assisted Circulation and Vascular Diseases, Chinese Academy of Medical Sciences, Guangdong Provincial Engineering and Technology Center for Diagnosis and Treatment of Vascular Diseases, Guangzhou, 510080, China. zhijunou@163.com.
Jing-Song OuDivision of Cardiac Surgery, Cardiovascular Diseases Institute, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China. oujs@mail.sysu.edu.cn.ORCID http://orcid.org/0000-0001-5517-3142

Funding

Clinical Research 5010 Program 2014002Guangdong Basic and Applied Basic Research Foundation, China 2024A1515030041National Key R&D Program of China 2021YFA0805100National Natural Science Foundation of China 82270485National Natural Science Foundation of China 82495171National Natural Science Foundation of China 92268202Non-profit Central Research Institute Fund of Chinese Academy of Medical Sciences 2023-PT320-03Sun Yat-sen University Basic Research Funds 24qnpy354The Science and Technology Planning Project of Guangdong Province 2023B1212060018
6 · The paper itself

Abstract

objectiveSize distribution is an important biophysical property of extracellular vesicles (EVs). EVs include small EVs (s-EVs) and large EVs (l-EVs) by size. Differential ultracentrifugation (dUC) is widely used to separate EVs from biofluids, but it can precipitate large impurity particles. Dynamic light scattering (DLS) is a simple and fast method for analyzing the size distribution of EVs. However, this approach is nonideal for heterogeneous and polydisperse samples since a small quantity of large impurity particles can markedly disturb the DLS results. Here, we developed a simple method to improve the reliability of DLS measurements.

methodsPlasma was obtained from 13 volunteers. The plasma was first processed by dUC to obtain crude l-EVs. The crude l-EVs were filtered with syringe filters (pore size of 1 μm and membrane material of hydrophilic polyvinylidene fluoride (PVDF)) to remove large impurity particles from l-EVs. The size distributions of the crude l-EVs and filtered l-EVs were measured via DLS.

resultsAfter the samples were filtered, the coefficients of variation of the hydrodynamic radius and Peak 1 intensity of the filtered l-EVs decreased from 20.39% (12.76-28.96%) and 20.44% (14.58-28.32%) to 3.05% (1.79-4.72%) and 3.43% (1.76-5.88%), respectively, compared with those of the crude l-EVs.

conclusionThese findings suggest that filtration can effectively separate circulating l-EVs in plasma to remove large impurity particles and make samples suitable for characterization by DLS. Our findings provide a simple method to improve precision via DLS to measure the size distribution of EVs.

Indexed as

Extracellular VesiclesAdultDynamic Light ScatteringFemaleHumansMaleParticle SizeUltracentrifugationDynamic light scatteringExtracellular vesiclesFiltrationPlasmaUltracentrifugation

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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 OpenQuestion graph.