Results 61 to 70 of about 561,797 (422)
Primordial follicular assembly in humans : revisited [PDF]
, 2009 Peer ...
A. Maheshwari +8 more
core +1 more source
Jurnal Sain Veteriner, 2015 The study aimed to determine the accuracy of ovarian follicle and corpus luteum measurements in vivo using ultrasonography diagnostic and in vitro after slicing of the ovaries.
Prabowo Purwono Putro
doaj +1 more source
Value of the Ultrasound in the Study of Ovarian Reserve for Prediction of Oocyte Recovery [PDF]
Revista Brasileira de Ginecologia e Obstetrícia, 2016 Purpose To identify which methods used in the assessment of the ovarian reserve are exclusive or complementary to identify the best response to follicle development.
Meire Spressão +2 more
doaj +2 more sources
Optimal control of cell mass and maturity in a model of follicular ovulation [PDF]
SIAM Journal on Control and Optimization 51, 2 (2013) 824-847, 2012 In this paper, we study optimal control problems associated with a scalar hyperbolic conservation law modeling the development of ovarian follicles. Changes in the age and maturity of follicular cells are described by a 2D conservation law, where the control terms act on the velocities.
arxiv +1 more source
Calcification of the Ovarian Follicle in Rats.
Experimental Biology and Medicine, 1964 SummaryThe induction of calcification in rat ovarian follicles by administration of parathyroid extract is reported. Calcium deposition is limited to the membrane granulosa and thecae interna of follicles in the early stages of antrum formation. It is suggested that the “calcifiability” of these tissues may be due in part to an action of endogenous ...
Howard S. Grob +2 more
openaire +3 more sources
Ovarian follicle burnout: A universal phenomenon? [PDF]
Cell Cycle, 2013 The ovarian follicle reserve is maintained in a delicate state of homeostasis aimed at preserving the majority of follicles in a dormant state. Key regulatory factors in follicle activation and quiescence include the PI3K/PTEN/Akt signaling pathway in the oocyte, as well as external paracrine inhibitory factors such as anti-Mullerian hormone (AMH) (Fig.
Zohar Gavish +3 more
openaire +3 more sources
In vitro differentiation of human embryonic stem cells into ovarian follicle-like cells
Nature Communications, 2017 Understanding the unique mechanisms of human oogenesis necessitates the development of an in vitro system of stem cell differentiation into oocytes. Specialized cell types and organoids have been derived from human pluripotent stem cells in vitro, but ...
Dajung Jung +12 more
semanticscholar +1 more source
Journal of Advanced Research, 2021 Introduction: As an effective inhibitor of premature ovulation, progestin was introduced to a novel ovarian stimulation regimen for infertility treatment.
Hui Long +10 more
doaj
Bio-Protocol, 2020 Ascidians are the closest living relatives of vertebrates (Delsuc et al., 2006; Satoh et al., 2014) and are important for the evolutionary study of the ovarian follicle development including oocyte maturation and ovulation.
Shin Matsubara +4 more
doaj +1 more source
Peptide Regulators in the Ovarian Follicle [PDF]
Australian Journal of Biological Sciences, 1981 Data generated within the last several years have shown that follicular fluid contains substances, presumably peptide in nature, which exert potentially important effects on granulosa cells and the oocyte. This review briefly summarizes the current evidence concerning the nature and importance of these putative regulators including the luteinization ...
openaire +3 more sources