Study of preantral follicle population in situ and after mechanical isolation from caprine ovaries at different reproductive stages [PDF]
, 1999 The purposes of this study were to estimate the population of caprine preantral follicles, and to evaluate quantitatively and qualitatively the efficiency of a specific mechanical method for the isolation of preantral follicles from mixed breed goats at ...
Amorim, Christiani Andrade +6 more
core +1 more source
Ovarian preantral follicles are responsive to FSH as early as the primary stage of development.
Journal of Endocrinology, 2020 Follicle-stimulating hormone (FSH) is required for ovarian antral folliculogenesis and steroidogenesis, and there is increasing evidence that it may play critical roles in preantral follicle development.
J. Candelaria +2 more
semanticscholar +1 more source
The spatiotemporal expression pattern of the bone morphogenetic protein family in rat ovary cell types during the estrous cycle. [PDF]
, 2003 In the mammalian ovary, great interest in the expression and function of the bone morphogenetic protein (BMP) family has been recently generated from evidence of their critical role in determining folliculogenesis and female fertility.
Erickson, Gregory F, Shimasaki, Shunichi
core +3 more sources
Neonatal exposure to xenoestrogens impairs the ovarian response to gonadotropin treatment in lambs [PDF]
, 2015 Bisphenol A (BPA) and diethylstilbestrol (DES) are xenoestrogens which have been associated with altered effects on reproduction. We hypothesized that neonatal xenoestrogen exposure affects the ovarian functionality in lambs.
Belmonte, Norberto Miguel +8 more
core +2 more sources
Expression of the neural cell adhesion NCAM in endocrine cells of the ovary [PDF]
, 1991 In the adult mammalian ovary morphogenesis and differentiation processes are under hormonal control and, thus, occur in a highly regulated way during the sexual cycle.
Gratzl, Manfred +2 more
core +1 more source
In Vitro Growth of Preantral Follicle and Maturation of Intrafollicular Oocyte from Aged Mice
Journal of Animal Reproduction and Biotechnology, 2019 This study aimed to recover the ovarian function through in vitro culture of preantral follicles from aged mice. First, we isolated the preantral follicles from ovaries of sixty-seven-week old B6D2F1 mice with decreased fecundity to know how many ...
Jung-Ah Yoon, Jung-Kyu Choi
doaj +1 more source
Preservation of bovine preantral follicle viability and ultra-structure after cooling and freezing of ovarian tissue [PDF]
, 2008 Bovine preantral follicles within ovarian fragments were exposed and cryopreserved in absence or presence of 1.5 M glycerol (GLY), ethylene glycol (EG), propanediol (PROH) or dimethyl sulfoxide (DMSO), undergoing a previous cooling at 20 °C for 1 h ...
Báo, Sônia Nair +9 more
core +1 more source
Journal of Animal Reproduction and Biotechnology, 2019 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
Pioglitazone suppresses excessive follicular development in murine preantral follicles. [PDF]
J Ovarian Res, 2019 Polycystic ovary syndrome (PCOS) is an endocrine disease that is common in women in their reproductive period. Patients with this disease suffer from anovulation and hyperandrogenism. Ovulation induction with exogenous gonadotropin often causes ovarian hyperstimulation syndrome because many small antral follicles pause in their growth.
Nagao S +10 more
europepmc +5 more sources
Stepped vitrification technique for human ovarian tissue cryopreservation [PDF]
, 2019 The advantage of stepped vitrification (SV) is avoiding ice crystal nucleation, while decreasing the toxic effects of high cryoprotectant concentrations. We aimed to test this method for human ovarian tissue cryopreservation.
Amorin, C.A. +9 more
core +1 more source