Evidence map›Paper›PMID 32451384›Full record

ArticleScientific reports2020

Follicular extracellular vesicles enhance meiotic resumption of domestic cat vitrified oocytes.

Marcia de Almeida Monteiro Melo Ferraz, Mayako Fujihara, Jennifer Beth Nagashima, Michael James Noonan, Miho Inoue-Murayama, Nucharin Songsasen

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

33 citing papers in PubMed, 53 citations in OpenAlex.

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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

6 authors at 3 institutions in 2 countries.

Marcia de Almeida Monteiro Melo Ferraz *Smithsonian National Zoo and Conservation Biology Institute, 1500 Remount Road, Front Royal, Virginia, 22630, USA. ferrazm@si.edu.ORCID http://orcid.org/0000-0002-9896-3459
Mayako Fujihara *Wildlife Research Center, Kyoto University, 2-24 Tanaka-Sekiden-cho, Sakyo, Kyoto, 606-8203, Japan.ORCID http://orcid.org/0000-0001-5477-2653
Jennifer Beth NagashimaSmithsonian National Zoo and Conservation Biology Institute, 1500 Remount Road, Front Royal, Virginia, 22630, USA.
Michael James NoonanSmithsonian National Zoo and Conservation Biology Institute, 1500 Remount Road, Front Royal, Virginia, 22630, USA.
Miho Inoue-MurayamaWildlife Research Center, Kyoto University, 2-24 Tanaka-Sekiden-cho, Sakyo, Kyoto, 606-8203, Japan.
Nucharin SongsasenSmithsonian National Zoo and Conservation Biology Institute, 1500 Remount Road, Front Royal, Virginia, 22630, USA.
Smithsonian Conservation Biology Institute · USKyoto University · JPNational Institute for Environmental Studies · JP

Funding

An ovary-on-a-chip for understanding early folliculogenesis and reproductive toxicology in a large mammalian modelF32HD090854 · NICHD · SMITHSONIAN INSTITUTION · PI NAGASHIMA, JENNIFER · 2017 to 2020
$231k
NICHD NIH HHS F32 HD090854
6 · The paper itself

Abstract

Extracellular vesicles (EVs) contain multiple factors that regulate cell and tissue function. However, understanding of their influence on gametes, including communication with the oocyte, remains limited. In the present study, we characterized the proteome of domestic cat (Felis catus) follicular fluid EVs (ffEV). To determine the influence of follicular fluid EVs on gamete cryosurvival and the ability to undergo in vitro maturation, cat oocytes were vitrified using the Cryotop method in the presence or absence of ffEV. Vitrified oocytes were thawed with or without ffEVs, assessed for survival, in vitro cultured for 26 hours and then evaluated for viability and meiotic status. Cat ffEVs had an average size of 129.3 ± 61.7 nm (mean ± SD) and characteristic doughnut shaped circular vesicles in transmission electron microscopy. Proteomic analyses of the ffEVs identified a total of 674 protein groups out of 1,974 proteins, which were classified as being involved in regulation of oxidative phosphorylation, extracellular matrix formation, oocyte meiosis, cholesterol metabolism, glycolysis/gluconeogenesis, and MAPK, PI3K-AKT, HIPPO and calcium signaling pathways. Furthermore, several chaperone proteins associated with the responses to osmotic and thermal stresses were also identified. There were no differences in the oocyte survival among fresh and vitrified oocyte; however, the addition of ffEVs to vitrification and/or thawing media enhanced the ability of frozen-thawed oocytes to resume meiosis. In summary, this study is the first to characterize protein content of cat ffEVs and their potential roles in sustaining meiotic competence of cryopreserved oocytes.

Indexed as

MeiosisAnimalsCatsCluster AnalysisCryopreservationExtracellular VesiclesFemaleFollicular FluidGlycolysisMicroscopy, Electron, TransmissionOocytesOxidative PhosphorylationProteomeProteomicsSignal TransductionProteome

Identifiers

PMID32451384
PMCPMC7248092
OpenAlexW3026903187

What OpenQuestion holds

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Registered trials

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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.