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- W2989774416 abstract "High polyspermy is one of the major limitations of porcine invitro fertilisation (IVF). The addition of oviductal fluid (OF) during IVF reduces polyspermy without decreasing the fertilisation rate. Because extracellular vesicles (EVs) have been described as important OF components, the aim of this study was to evaluate the effect of porcine oviductal EVs (poEVs) on IVF efficiency compared with porcine OF (fresh and lyophilised). OF was collected from abattoir oviducts by phosphate-buffered saline flush, and poEVs were isolated by serial ultracentrifugation. Four IVF treatments were conducted: poEVs (0.2mgmL–1), OF (10%), lyophilized and reconstituted pure OF (LOF; 1%) and IVF without supplementation (control). Penetration, monospermy and IVF efficiency were evaluated. Transmission electron microscopy showed an EVs population primarily composed of exosomes (83%; 30–150nm). Supplementation with poEVs during IVF increased monospermy compared with control (44% vs 17%) while maintaining an acceptable penetration rate (61% vs 78% respectively) in a similar way to OF and LOF. Western blotting revealed poEVs proteins involved in early reproductive events, including zona pellucida hardening. In conclusion, our finding show that poEVs are key components of porcine OF and may play roles in porcine fertilisation and polyspermy regulation, suggesting that supplementation with poEVs is a reliable strategy to decrease porcine polyspermy and improve invitro embryo production outcomes." @default.
- W2989774416 created "2019-12-05" @default.
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- W2989774416 date "2020-01-01" @default.
- W2989774416 modified "2023-10-18" @default.
- W2989774416 title "Oviduct fluid extracellular vesicles regulate polyspermy during porcine in vitro fertilisation" @default.
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- W2989774416 doi "https://doi.org/10.1071/rd19058" @default.
- W2989774416 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31775998" @default.
- W2989774416 hasPublicationYear "2020" @default.
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