Results 191 to 200 of about 8,605 (217)

The early stages of follicular development: activation of primordial follicles and growth of preantral follicles

Animal Reproduction Science, 2003
Although enormous progress has been made in understanding the events and regulation of the later stages of ovarian follicular development, the early stages of development, to a large extent and particularly in large mammals, remain a mystery. Mechanisms that regulate the initiation of follicular growth (follicle activation) and the ensuing growth and ...
openaire   +2 more sources

Isolation of preantral follicles from buffalo ovaries

Veterinary Record, 2001
P S, Gupta, S, Nandi, B M, Ravindranatha, P V, Sarma   +3 more
openaire   +2 more sources

In vitro growth of preantral follicles in cats

EXP. 1 The objective was to determine effects of thyroxin (T4)and activinA on in vitro growth and morphology of preantral feline ovarian follicles. Preantral follicles (86.3± 18.7 µm) were isolated from fresh ovaries of domestic cats. Healthy follicles were cultured individually for 14 d in 20-µL microdrops of basic culture medium supplemented with ...
openaire   +1 more source

[Development of human fetal preantral follicles in vitro].

Zhonghua fu chan ke za zhi, 2000
To study oocyte maturation of human fetal preantral follicles in vitro, the effects of different factors on oocyte maturation.Preantral follicles were obtained from fetal ovaries from termination of 20-28 weeks gestation. Factors involved in the development, maturation of fetal preantral follicles were studied in tissue and cell culture by means of ...
J, Wu, L, Zhang, P, Liu
openaire   +1 more source

Control of Recruitment of Preantral Follicles in Mammalian Ovaries

1990
Mature oocytes in Graafian follicles are at the end of a developmental continuum which began when they entered meiotic prophase months or even years earlier. The greater part of the lifespan of those in adult ovaries is represented by the population of primordial follicles.
openaire   +1 more source

Nucleolus ultrastucture in bovine preantral follicles

Theriogenology, 1996
T Fair, SCJ Hulshof, M Boland, P Hyttel
openaire   +1 more source

Monitoring preantral follicle survival and growth in bovine ovarian biopsies by repeated use of neutral red and cultured in vitro under low and high oxygen tension

Theriogenology, 2014
Erik Fransen, Jo L M R Leroy
exaly  

Cystic endometrial hyperplasia-pyometra syndrome impairs the preantral follicle reserve in domestic bitches (Canis familiaris)

Reproductive Biology, 2023
exaly  

In vitro production of a caprine embryo from a preantral follicle cultured in media supplemented with growth hormone

Theriogenology, 2011
Cláudio Lopes
exaly  

Effect of growth factors on in vitro development of caprine preantral follicle oocytes

Animal Reproduction Science, 2005
Huanmin Zhou
exaly