Organelle reorganization in bovine oocytes during dominant follicle growth and regression
نویسندگان
چکیده
منابع مشابه
Organelle reorganization in bovine oocytes during dominant follicle growth and regression.
BACKGROUND We tested the hypothesis that organelles in bovine oocytes undergo changes in number and spatial distribution in a manner specific for phase of follicle development. METHODS Cumulus-oocyte-complexes were collected from Hereford heifers by ultrasound-guided follicle aspiration from dominant follicles in the growing phase (n = 5; Day 0 = ovulation), static phase (n = 5), regressing p...
متن کاملThe bovine dominant ovarian follicle.
Central roles in reproductive biology (i.e., growth and development of the oocyte, steroidogenesis, and ovulation) are played by the ovarian dominant follicle (DF). The DF is different from other follicles because it can escape atresia (the fate of all other follicles), and if exposed to the LH surge, its cells will differentiate into the corpus luteum. The DF was originally studied by looking ...
متن کاملRegulation and Regulatory Role of WNT Signaling in Potentiating FSH Action during Bovine Dominant Follicle Selection
Follicular development occurs in wave like patterns in monotocous species such as cattle and humans and is regulated by a complex interaction of gonadotropins with local intrafollicular regulatory molecules. To further elucidate potential mechanisms controlling dominant follicle selection, granulosa cell RNA harvested from F1 (largest) and F2 (second largest) follicles isolated at predeviation ...
متن کاملin vitro developmental competence of bovine oocytes: effect of corpus luteum and follicle size
background: previous studies reported many discrepancies about the effects of corpus luteum (cl) and ovarian follicle size on the developmental competence of oocytes. objective: the aim of this study was to investigate the effects of cl and different size of follicle on the developmental potential of bovine oocytes. materials and methods: after ovarian classification based on presence or absenc...
متن کاملIn vitro developmental competence of bovine oocytes: Effect of corpus luteum and follicle size.
BACKGROUND Previous studies reported many discrepancies about the effects of corpus luteum (CL) and ovarian follicle size on the developmental competence of oocytes. OBJECTIVE The aim of this study was to investigate the effects of CL and different size of follicle on the developmental potential of bovine oocytes. MATERIALS AND METHODS After ovarian classification based on presence or absen...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Reproductive Biology and Endocrinology
سال: 2015
ISSN: 1477-7827
DOI: 10.1186/s12958-015-0122-0