1994
DOI: 10.1016/s0093-691x(05)80252-3
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Developmental competence and ultrastructure damage of cryopreserved GV-stage bovine oocytes

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Cited by 6 publications
(5 citation statements)
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“…Moreover, the sight of numerous cytoplasmic vacuoles in most of the surrounding cumulus cells, disorganization of actin filaments within the transzonal process of the cumulus cells through which they establish physical contact with the oocyte and interruption of the cumulus cellsṕ rojections is also common after vitrification of COCs (Younis et al, 1996). Additionally, Yang et al (1994) have suggested that the developmental capacity of cryopreserved immature bovine oocytes is impaired because of severe ultrastructural damage.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Moreover, the sight of numerous cytoplasmic vacuoles in most of the surrounding cumulus cells, disorganization of actin filaments within the transzonal process of the cumulus cells through which they establish physical contact with the oocyte and interruption of the cumulus cellsṕ rojections is also common after vitrification of COCs (Younis et al, 1996). Additionally, Yang et al (1994) have suggested that the developmental capacity of cryopreserved immature bovine oocytes is impaired because of severe ultrastructural damage.…”
Section: Discussionmentioning
confidence: 99%
“…Additionally, Yang et al . (1994) have suggested that the developmental capacity of cryopreserved immature bovine oocytes is impaired because of severe ultrastructural damage.…”
Section: Discussionmentioning
confidence: 99%
“…Entre os crioprotetores, os mais utilizados têm sido o glicerol, propanediol (PROH) e o dimetil sulfóxido (DMSO). A utilização desses crioprotetores tem produzido resultados inconsistentes quando utilizados na FIV (Fuku et ai., 1992 ;Schellander et ai., 1994 ;Yang et ai., 1994). Quando compararam diversos crioprotetores, Suzuki e Nishikata (1992) citaram que o PROH pode ser um crioprotetor mais apropriado para a congelação de oócitos imaturos de bovinos.…”
Section: Introductionunclassified
“…This may explain the findings that cleavage rates of frozen-thawed immature bovine oocytes decreased after IVM-IVF and that even fewer developed to blastocysts. Moreover, the reduction of developmental ability of cryopreserved oocytes may have resulted from extensive disorganization of the ooplasm, rupture of zona pellucida and plasma membrane or disconnection between oocyte and cumulus during freezing and thawing, resulting in low fertilization rates [15][16][17].…”
Section: Discussionmentioning
confidence: 99%