Evidence map›Paper›PMID 34135428›Full record

ArticleScientific reports2021

Circulating small extracellular vesicles increase after an acute bout of moderate-intensity exercise in pregnant compared to non-pregnant women.

Shuhiba Mohammad, Kelly Ann Hutchinson, Danilo Fernandes da Silva, Jayonta Bhattacharjee, Kurt McInnis, Dylan Burger, Kristi B Adamo

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.1field-weighted citation impact, top 24% 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, 17 citations in OpenAlex.

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  6. Extracellular vesicles in preeclampsia: drivers of vascular dysfunction and inflammation.American journal of physiology. Heart and circulatory physiology · 2025
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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 1 institution in 1 country.

Shuhiba MohammadFaculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada.
Kelly Ann HutchinsonFaculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada.
Danilo Fernandes da SilvaFaculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada.
Jayonta BhattacharjeeFaculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada.
Kurt McInnisFaculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada.
Dylan BurgerKidney Research Centre, Department of Cellular and Molecular Medicine, The Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada.
Kristi B AdamoFaculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada. kadamo@uottawa.ca.
University of Ottawa · CA

Funding

CIHR MOP 142298
6 · The paper itself

Abstract

The physiological and molecular mechanisms linking prenatal physical activity and improvements in maternal-fetal health are unknown. It is hypothesized that small extracellular vesicles (EVs, ~ 10-120 nm) are involved in tissue cross-talk during exercise. We aimed to characterize the circulating small EV profile of pregnant versus non-pregnant women after an acute bout of moderate-intensity exercise. Pregnant (N = 10) and non-pregnant control (N = 9) women performed a single session of moderate-intensity treadmill walking for 30 min. Plasma was collected immediately pre- and post-exercise, and small EVs were isolated by differential ultracentrifugation. EV presence was confirmed by western blotting for the small EV proteins TSG-101 and flottilin-1. Small EVs were quantified by size and concentration using nanoparticle tracking analysis and transmission electron microscopy. All EV fractions were positive for TSG-101 and flotillin-1, and negative for calnexin. Mean vesicle size at baseline and percent change in size post-exercise were not different between groups. At baseline, pregnant women had higher levels of small EVs compared to controls (1.83E+10 ± 1.25E+10 particles/mL vs. 8.11E+09 ± 4.04E+09 particles/mL, respectively; p = 0.032). Post-exercise, small EVs increased significantly in the circulation of pregnant compared to non-pregnant women after correcting for baseline values (64.7 ± 24.6% vs. - 23.3 ± 26.1%, respectively; F = 5.305, p = 0.035). Further research is needed to assess the functional roles of exercise-induced small EVs in pregnancy.

Indexed as

AdultCalnexinCase-Control StudiesDNA-Binding ProteinsEndosomal Sorting Complexes Required for TransportExercise TestExtracellular VesiclesFemaleGene Expression RegulationHumansMembrane ProteinsMicroscopy, Electron, TransmissionParticle SizePlasmaPregnancyPregnant PeopleCalnexinCANX protein, humanDNA-Binding ProteinsEndosomal Sorting Complexes Required for TransportflotillinsMembrane ProteinsTranscription FactorsTsg101 Protein

Identifiers

PMID34135428
PMCPMC8209031
OpenAlexW3166390299

What OpenQuestion holds

Textmetadata
LicenceCC BY
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 OpenQuestion graph.