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dc.contributor.authorOLIVEIRA, C. S.
dc.contributor.authorFEUCHARD, V. L. da S.
dc.contributor.authorQUINTAO, C. C. R.
dc.contributor.authorOLIVEIRA, L. Z.
dc.contributor.authorSARAIVA, N. Z.
dc.date.accessioned2024-11-07T18:53:42Z-
dc.date.available2024-11-07T18:53:42Z-
dc.date.created2024-11-07
dc.date.issued2024
dc.identifier.citationCryobiology, v. 117, 104981, 2024.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1168953-
dc.descriptionGiven the significant variation in lipid levels among bovine embryos, our study was designed to associate lipid content to oxidative stress in individual embryos undergoing vitrification, and to assess how this and other morphological parameters impacts cryosurvival. Linear and logistic regression were performed to understand the influence of the variables in the cryosurvival. T-test or Kruskal Wallis were employed to compare means. Vitrified embryos revealed a positive correlation between lipid content and oxidative stress post-warming both 2 h (p = 0.025, n = 64) and 48 h (p < 0.001, n = 122) after warming. Lipid levels explained (p < 0.001) up to 51 % (multiple R-squared) of oxidative stress variability. Compared to fresh embryos, a negative influence (p = 0.01) of vitrification-warming procedures was detected in lipid levels. Vitrified embryos exhibited lower (p < 0.001, n = 90) mean lipid content compared to fresh counterparts 48 h post-warming, and similar (p = 0.24) oxidative stress levels. No impact of lipid content or oxidative stress levels was detected on hatchability or embryo quality 48 h post-warming (n = 99). Expansion just after (0 h) and 2 h after warming resulted in a higher chance of hatching (p = 0.015 and p = 0.008, OR 1.30 and 1.58), and a positive association was observed between expansion at 0 h (p = 0.002) and embryo area (p = 0.047) with cell number. In conclusion, a decrease in lipid levels was found following vitrification-warming procedure and an individual association between lipids and oxidative stress is present in vitrified embryos. Lipids or oxidative stress levels was not linked to survivability of vitrified embryos 48 h following warming. Expansion at 0 h indicates a better chance for hatching and higher cell numbers in vitrified embryos.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectVitrificação
dc.subjectTeor lipídico
dc.subjectEstresse oxidativo
dc.subjectCriotolerância
dc.subjectCryotolerance
dc.titleImpact of lipid content on oxygen reactive species and viability predictors in vitrified bovine embryos.
dc.typeArtigo de periódico
dc.subject.thesagroEmbrião Animal
dc.subject.nalthesaurusVitrification
dc.subject.nalthesaurusLipid content
dc.subject.nalthesaurusOxidative stress
dc.subject.nalthesaurusEmbryo (animal)
riaa.ainfo.id1168953
riaa.ainfo.lastupdate2024-11-07
dc.identifier.doihttps://doi.org/10.1016/j.cryobiol.2024.104981
dc.contributor.institutionCLARA SLADE OLIVEIRA, CNPGL; VIVIANE LUZIA DA SILVA FEUCHARD, UNIVERSIDADE FEDERAL DE MINAS GERAIS; CAROLINA CAPOBIANGO ROMANO QUINTAO, CNPGL; LETICIA ZOCCOLARO OLIVEIRA, UNIVERSIDADE FEDERAL DE MINAS GERAIS; NAIARA ZOCCAL SARAIVA, CNPGL.
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