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Oocyte Retrieval and Quality Evaluation
2014After more than 30 years of harvesting oocytes for in vitro fertilization, collection techniques are well established. Presented here are dependable methods for maintaining environmental stability during such procedures and general descriptions of the materials collected.
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2012
After oocyte collection for assisted reproductive technologies, the oocytes display various aspects of maturation, integrity and viability. As there is still a lack of reliable and rapid biochemical, or molecular marker of their status, the best modality for evaluation of oocyte quality still remains to be direct microscopic observation of morphology ...
Basak Balaban +2 more
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After oocyte collection for assisted reproductive technologies, the oocytes display various aspects of maturation, integrity and viability. As there is still a lack of reliable and rapid biochemical, or molecular marker of their status, the best modality for evaluation of oocyte quality still remains to be direct microscopic observation of morphology ...
Basak Balaban +2 more
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Oocyte Quality in Women with Endometriosis
Gynecologic and Obstetric InvestigationBackground: Endometriosis is a chronic gynecological condition that affects approximately 10% of women of reproductive age globally. It is associated with significant morbidity due to symptoms such as pelvic pain and infertility. Current knowledge suggests that endometriosis impacts oocyte quality, a critical factor for successful fertilization and ...
Rafael, Trinchant +1 more
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2017
The concept of oocyte quality represents the oocyte developmental competence, meaning the intrinsic ability of oocytes to undergo meiotic maturation, fertilization, proper embryonic development and successful pregnancy. As follicular growth disturbances have been widely shown in PCOS, especially during controlled ovarian hyperstimulation, the ...
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The concept of oocyte quality represents the oocyte developmental competence, meaning the intrinsic ability of oocytes to undergo meiotic maturation, fertilization, proper embryonic development and successful pregnancy. As follicular growth disturbances have been widely shown in PCOS, especially during controlled ovarian hyperstimulation, the ...
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Can Stimulation Protocols Improve Oocyte Quality?
2002Ovarian follicle development in humans is a lengthy process that takes several months. Initial follicle recruitment from the resting pool is regulated by intraovarian factors and independent of circulating gonadotropin concentrations. Once follicles have initiated growth, they progress through a slow preantral growth phase (approximately 4 months ...
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Contribution of the oocyte to embryo quality
Theriogenology, 2006The ability of a bovine embryo to develop to the blastocyst stage, to implant and to generate a healthy offspring is not a simple process. To clarify the importance of the contribution of the oocyte to the embryo quality, it is important to define more precisely the different types of competence expressed by oocytes.
Marc-André, Sirard +3 more
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Endometriosis, Infertility, and Oocyte Quality
2019Endometriosis is a gynecological disease characterized by the presence of endometrial glandular and stromal cells existing in the extra-uterine environment. Estimates show that endometriosis affects 10–15% of all women of reproductive age. Approximately, 25–50% of infertile women may be affected by endometriosis and 30–50% patients with endometriosis ...
Andrea Tinelli +7 more
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Follicular factors regulating oocyte maturation and quality
Human Fertility, 1998Maturation of the oocyte can be divided into two different aspects: nuclear maturation and cytoplasmic maturation. The spontaneous nature of nuclear maturation in oocytes removed from the follicle and cultured in vitro was observed in mammals as early as 1935.
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Oocyte maturation and ovum quality in pigs
Reviews of Reproduction, 2000Oocyte quality in pigs is defined as the potential of that oocyte to develop into a viable offspring. There is increasing evidence that the programming of the oocyte must be completed before leaving the ovarian follicle, including both nuclear and cytoplasmic maturation.
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