منابع مشابه
Metabolomics: approaches to assessing oocyte and embryo quality.
Morphological evaluation remains the primary method of embryo assessment during IVF cycles, but its modest predictive power and inherent inter- and intra-observer variability limits its value. Low-molecular weight metabolites represent the end products of cell regulatory processes and therefore reveal the response of biological systems to a variety of genetic, nutrient or environmental influenc...
متن کاملHuman Oocyte And Embryo Cryopreservation
The technology so far applied clinically has been based directly on traditional human embryo cryopreservation protocols, and has produced relatively few offspring. Fortunately to date, no abnormalities have been reported from these pregnancies, regardless of the persistent concerns that freezing and thawing of mature oocytes may disrupt the meiotic spindle and thus increase the potential for an...
متن کاملThe Effects of Progesterone on Oocyte Maturation and Embryo Development
Oocyte maturation and embryo development are controlled by intra-ovarian factors such as steroid hormones. Progesterone (P4) exists in the follicular fluid that contributes to normal mammalian ovarian function and has several critical functions during embryo development and implantation, including endometrial receptivity, embryonic survival during gestation and transformation of the endometrial...
متن کاملO-24: Increased Homocysteinein PCOS Affects Oocyte and Embryo Quality
Background: The biochemical characteristics of the follicular fluid (FF) play essential role in oocyte quality, the subsequent fertilization potential and embryo development. The oocyte quality and metabolism largely depends on follicular microenvironment. Present study aimed to investigate the relationship between oocyte quality and FF homocysteine (Hcy) level in women undergoing to IVF treatm...
متن کاملThe oocyte-to-embryo transition.
The oocyte-to-embryo transition refers to the process whereby a fully grown, relatively quiescent oocyte undergoes maturation, fertilization, and is converted into a developmentally active, mitotically dividing embryo, arguably one of the most dramatic transitions in biology. This transition occurs very rapidly in Caenorhabditis elegans, with fertilization of a new oocyte occurring every 23 min...
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ژورنال
عنوان ژورنال: Bioscientifica Proceedings
سال: 2019
ISSN: 2515-0227
DOI: 10.1530/biosciprocs.19.0001