Results 141 to 150 of about 5,089 (171)

In vitro Growth of Sheep Preantral Follicles: Which Perspectives?

Veterinary Research Communications, 2003
G. Capacchietti1, S. Cecconi2, E. Colantoni2, V. Russo1, P. Berardinelli1, B. Barboni1 and M. Mattioli1 1Dip. Scienze Biomediche Comparate, Universita degli Studi di T eramo; 2Dip. Scienze e T ecnologie Biomediche,Universita degli Studi di L ’Aquila *Correspondence: Dip. Scienze Biomediche Comparate, sezione Fisiologia, Facolta di Medicina Veterinaria,
Cecconi S, Colantoni E, RUSSO, Valentina, BERARDINELLI, Paolo, BARBONI, Barbara, MATTIOLI, Mauro, CAPACCHIETTI, Giulia   +6 more
openaire   +4 more sources

Morphogenetic reaggregation and luteinization of mouse preantral follicle cells

American Journal of Anatomy, 1979
AbstractSmall (60‐90 μm) and large (100‐130 μm) preantral follicles were isolated from adult mouse ovaries by a collagenase‐dissection technique. These follicles were composed of resting oocytes surrounded either by granulosa cells, only, or by granulosa and undifferentiated theca cells.
S V, Nicosia, R, Tojo
openaire   +2 more sources

Population estimate of the preantral follicles and frequency of multioocyte follicles in prepubertal and adult bitches

Theriogenology, 2015
Oocytes from preantral follicles could be an alternative for in vitro maturation because most follicles are at the preantral stage. There are few studies that have sought to estimate the number of preantral follicles in bitches. Therefore, the aims of this study were to estimate the population of preantral follicles in the ovaries of small- and medium ...
N T, Lunardon, K C, Silva-Santos, R C, Justino, G T, Dessunti, M M, Seneda, M I M, Martins   +5 more
openaire   +2 more sources

Establishment of a basic method for manipulating preantral follicles: effects of retrieval method on in vitro growth of preantral follicles and intrafollicular oocytes

Zygote, 2007
SummaryThe aim of this study was to establish a basic manipulation protocol of preantral follicles for deriving developmentally competent oocytes. Primary, early and late secondary follicles retrieved from the ovaries of 14-day-old F1 (C57BL/6 × DBA2) female mice mechanically or enzymatically were cultured singly and in vitro growth of the follicles ...
S T, Lee, M H, Choi, S P, Gong, J Y, Han, J M, Lim   +4 more
openaire   +2 more sources

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

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

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

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

Reproductive Biology, 2023
Gustavo D A Gastal
exaly  

Cryoprotective Effects of Longan Honey on Preantral Follicle Integrity of Rat Ovary Post Vitrification

Cryo-Letters, 2023
Ahmad Aulia Jusuf, Anom Bowolaksono
exaly  

Nucleolus ultrastucture in bovine preantral follicles

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