منابع مشابه
Ultrastructural changes in oocytes during folliculogenesis in domestic mammals
The ultrastructural analysis of oocytes and ovarian follicles has been used to evaluate the effects of assisted reproductive techniques, such as cryopreservation or in vitro oocyte maturation. It also benefits the understanding of such complex mechanisms that occur during folliculogenesis. From the beginning of primordial follicles growth until oocyte maturation in preovulatory follicles oocyte...
متن کاملA pilot study on transcriptome data analysis of folliculogenesis in pigs.
Three different stages of pig antral follicles have been studied in a granulosa-cell transcriptome analysis on nylon microarrays (1152 clones). The data have been generated from seven RNA follicle pools and several technical replicates were made. The objective of this paper was to state the feasibility of a transcriptomic protocol for the study of folliculogenesis in the pig. A statistical anal...
متن کاملP4 down-regulates Jagged2 and Notch1 expression during primordial folliculogenesis.
Nest breakdown and primordial folliculogenesis of the mouse ovary can be inhibited by progesterone (P4) and Notch signaling inhibitors. However, the relationship between these two signals during this process remains unknown. In the present study, transcript levels of Jagged2, Notch1, and their target, Hey2, increased markedly in ovaries during the beginning stage of folliculogenesis (17.5 days ...
متن کاملOCT4 and the acquisition of oocyte developmental competence during folliculogenesis.
The role that the transcription factor OCT4 plays during oocyte growth is yet unknown. In this review, we summarise the data on its potential role in the acquisition of oocyte developmental competence in the mouse. These studies describe the presence in MII oocytes and 2-cell embryos of an OCT4 transcriptional network that might be part of the molecular signature of maternal origin on which the...
متن کاملDetection of zona pellucida proteins during human folliculogenesis.
BACKGROUND The stage of folliculogenesis at which the human zona pellucida (ZP) is initiated and the cells responsible for the origin of the ZP continue to be controversial. This study characterizes the development of the ZP during human folliculogenesis using ovarian samples donated from patients requesting ovarian storage. METHODS Follicles (from n = 18 patients, 14-40 years old) within fre...
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ژورنال
عنوان ژورنال: Bioscientifica Proceedings
سال: 2020
ISSN: 2515-0227
DOI: 10.1530/biosciprocs.16.0002