Results 281 to 290 of about 55,590 (315)

Extracellular Matrix of the Developing Ovarian Follicle

Seminars in Reproductive Medicine, 2006
There are many different types of extracellular matrices in the different follicle compartments. These have different roles in follicle development and atresia, and they change in composition during these processes. This review focuses on basal lamina matrix in particular, and considers follicular fluid, the newly identified focimatrix, and thecal ...
Irving-Rodgers, Helen, Rodgers, Raymond
openaire   +4 more sources

Control of ovarian follicles activity in the ewe

Domestic Animal Endocrinology, 1999
During the ovine estrous cycles, three waves of follicular growth, closely associated with the FSH secretion pattern, were observed. The parameters of these follicular waves and the ability of follicles to produce steroids in vitro were studied in various conditions.
J. L. Bister, S.N.M. Mandiki, R. Paquay, Bernard Noël, J. Mbayahaga, B Perrad   +5 more
openaire   +4 more sources

Ovarian follicle vascularization in fasted pig

Theriogenology, 2004
The authors have investigated in the different classes of ovarian follicles the vascular area, the blood vessel distribution, the vascular endothelial growth factor (VEGF) mRNA expression and the VEGF secretion during equine chorionic gonadotropin (eCG) induced follicle growth in prepubertal gilts fed ad libitum or fasted. Immunohistochemistry staining
Barbara, Barboni, Barboni, Barbara, Alessandra, Martelli, Martelli, Alessandra, Paolo, Berardinelli, Berardinelli, Paolo, Valentina, Russo, Russo, Valentina, Maura, Turriani, Turriani, Maura, Nicola, Bernabò, Bernabò, Nicola, Pia, Lucidi, Lucidi, Pia, Mauro, Mattioli, Mattioli, Mauro   +15 more
openaire   +4 more sources

Impact of endometriosis on the ovarian follicles

Best Practice & Research Clinical Obstetrics & Gynaecology
A significant body of evidence has supported a negative impact of endometriosis on ovarian follicles; however, the origin and relevance of this ovarian impairment in endometriosis is still a matter of debate. The ovarian damage can be caused by endometriosis itself or by surgeries aiming to remove endometriotic lesions.
Maíra Casalechi, Giorgia Di Stefano, Gianfranco Fornelli, Edgardo Somigliana, Paola Viganò   +4 more
openaire   +2 more sources

The Reproductive Lifespan of Ovarian Follicle

Reproductive Sciences
The functional unit within mammalian ovaries is the ovarian follicle. The development of the ovarian follicle is a lengthy process beginning from the time of embryogenesis, passing through multiple different stages of maturation. The purpose of this review is to describe the most basic events in the journey of ovarian follicle development, discussing ...
Kallirhoe Kalinderi, Michail Kalinderis, Vasileios Papaliagkas, Liana Fidani   +3 more
openaire   +2 more sources

Morphology of the Membrana Granulosa of the Ovarian Follicle

Endocrinology, 1968
Each of the cells of the membrana granulosa in mature ovarian follicles of rabbits project from the basement membrane, and are not layered as is generally believed. The arrangement of the cells is that seen in a pseudostratified epithelium. The cells may secrete or excrete materials through their basal end and may be the source of the enzymes ...
Nicholas L. Cross, Harry Lipner
openaire   +3 more sources

The dominant ovarian follicle

Fertility and Sterility, 1982
Edward E. Wallach, Gary D. Hodgen
openaire   +3 more sources

Cistic ovarian follicles

2011
Reproduction is one of the key targets in dairy production. Reproductive disorders including cystic ovarian follicles (COF) present a great problem in dairy cow's management. COF in cows and heifers traditionally have been define as an anovulatory fluid-filled hollow structures having diameter ≥ 2.5 cm that persist for 10 or more days in the absence or
openaire   +1 more source

Origin of ovarian follicle cells in birds

Experientia, 1976
In the embryonic Japanese quail ovary, transplanted on chicken chorioallantoic membrane (CAM), follicle cells are derived from somatic cells of the ovarian surface epithelium. No evidence was found for a contribution of other cell groups of the quail ovary in the formation of follicle cells.
openaire   +3 more sources

Ultrastructure of Human Ovarian Follicles

1980
Various criteria have been applied in classifying ovarian follicles (Table 1; Schroder 1930; Block 1951; Watzka 1957; Hertig and Barton 1973; Balboni 1976). The terminology based on both essential morphological and functional changes in the differentiating follicle is used in this chapter (Franchi and Baker 1973).
M. Dvořák, J. Tesařík
openaire   +2 more sources