Results 11 to 20 of about 4,915 (175)
Background To develop new breeding technology to improve the breeding ability of bovine, it is the development trend to find the main reason for the occurrence of atresia in these organisms.
Khairy Mohamed Zoheir +3 more
doaj +1 more source
Effect of different culture systems and 3, 5, 3'-triiodothyronine/follicle-stimulating hormone on preantral follicle development in mice. [PDF]
The mechanical method to isolate preantral follicle has been reported for many years. However, the culture systems in vitro are still unstable. The aim of this study was to analyze the effect of the culture system of mice preantral follicles on the ...
Cheng Zhang +5 more
doaj +1 more source
The pituitary gonadotropin FSH is a glycoprotein critical for the development of ovarian follicles. Upon binding to its G protein-coupled membrane receptor located on the granulosa cells of ovarian follicles, FSH elicits a cascade of downstream ...
Amanda J. Morton +4 more
doaj +1 more source
Background In-vitro-grow (IVG) of preantral follicles is essential for female fertility preservation, while practical approach for improvement is far from being explored.
Yingchun Guo +8 more
doaj +1 more source
Ultrastructure and viability of isolated bovine preantral follicles [PDF]
Techniques for the isolation of ovarian follicles and maturation of oocytes in vitro have enormous reproductive potential. Preservation of normal tissue function is vital. This study emphasizes the ultrastructure and viability of mechanically isolated bovine small (diameter 40-100 microm) preantral and large (140-450 microm) preantral/early antral ...
R, van den Hurk +5 more
openaire +2 more sources
Simulated Microgravity Using a Rotary Culture System Compromises the In Vitro Development of Mouse Preantral Follicles. [PDF]
Growing cells in simulated weightlessness condition might be a highly promising new technique to maintain or generate tissue constructs in a scaffold-free manner.
Shen Zhang +7 more
doaj +1 more source
In vitro development of pig preantral follicles [PDF]
A limiting factor to realizing the full potential of many of the new reproductive techniques is the lack of abundant numbers of fertilizable oocytes. This problem could be addressed by using the large source of oocytes available from preantral and primordial follicles by developing systems for in vitro growth.
openaire +2 more sources
The objective of this study was to establish an in vitro culture system for ovarian preantral follicles of B6D2F1. First, we optimized the in vitro preantral-follicle culture by culture duration, follicle stimulating hormone (FSH) type, and activin A ...
Jung Kyu Choi
doaj +1 more source
The structure of follicular tissue affects the ability to maintain the structural integrity of follicles against cryoinjury post-vitrification. Histological analysis was conducted on the structural integrity of each stage of preantral follicles post ...
Nova Anita +4 more
doaj +1 more source
Oocyte-granulosa-theca cell interactions during preantral follicular development
The preantral-early antral follicle transition is the penultimate stage of follicular development in terms of gonadotropin dependence and follicle destiny (growth versus atresia).
Orisaka Makoto +3 more
doaj +1 more source

