Results 61 to 70 of about 8,556 (220)

Morphological and ultrastructural analysis of sheep primordial follicles preserved in 0.9% saline solution and TCM 199 [PDF]

, 2004
The objective was to determine the morphological and ultrastructural features of sheep primordial follicles preserved in either 0.9% saline solution or TCM 199 at different temperatures.
Andrade, Evelyn Rabelo, Báo, Sônia Nair, Celestino, Juliana Jales de Hollanda, Costa, Sonia Helena Furtado, Ferreira, Marcos Antônio Leal, Figueiredo, José Ricardo de, Lucci, Carolina Madeira, Matos, Maria Helena Tavares de, Santos, R.R., Silva, José Roberto Viana   +9 more
core   +1 more source

Anti-Müllerian hormone overexpression restricts preantral ovarian follicle survival [PDF]

Journal of Endocrinology, 2018
Anti-Müllerian hormone (AMH) is an ovarian regulator that affects folliculogenesis. AMH inhibits the developmental activation of the dormant primordial follicles and the oocyte within. In more mature follicles, AMH reduces granulosa cell sensitivity to follicle-stimulating hormone (FSH).
Michael W, Pankhurst, Rebecca L, Kelley, Rachel L, Sanders, Savana R, Woodcock, Dorothy E, Oorschot, Nicola J, Batchelor   +5 more
openaire   +2 more sources

Real‐Time and High‐Resolution NIR‐II‐L Imaging of Netrin‐1‐Mediated Neurovascular Coupling Driven by Dose‐Dependent Electroacupuncture

Advanced Science, EarlyView.
Disrupted neurovascular coupling contributes to ovarian dysfunction in polycystic ovary syndrome. Using near‑infrared II long‑wavelength imaging, this study visualizes how electroacupuncture dynamically regulates ovarian blood vessels in vivo. Immediate and cumulative stimulation elicit distinct vascular responses via a Netrin‐1 dependent mechanism ...
Yicong Wang, Zi‐Han Chen, Jiajia Li, Wei Hu, Ying Cao, Yu Wang, Xiaoyu Tong, Wenhan Lu, Yuze Yang, Yuehao Wang, Yan Xiao, Wenhao Gao, Yuning Chen, Yuyan Hou, Fan Zhang, Yi Feng   +15 more
wiley   +1 more source

Control of the growth and development of murine preantral follicles in a biomimetic ovary using a decellularized porcine scaffold

Materials Today Bio, 2023
This study aimed to derive mature oocytes from murine preantral follicles cultured in a biomimetic ovary with a porcine scaffold using decellularization technology.
Eun young Park, Jin hee Park, Nhu Thi Quynh Mai, Byoung-San Moon, Jung Kyu Choi   +4 more
doaj   +1 more source

Unraveling ovarian histology: The key morphological aspects that spur the development of the Fossa ovarii in equine

The Anatomical Record, EarlyView.
Abstract The equine ovary exhibits unique structural and developmental features that distinguish it from those of other domestic species, including the presence of an ovulation fossa and an inversion of cortical and medullary layers. This study aimed to investigate the morphostructural development of the equine fetal ovary, with particular emphasis on ...
Laura Ver Goltz, Silvio Pires Gomes, Bruno Cesar Schimming, Fabio Cesar Magioli Abdala, Maria Angélica Miglino, Tais Harumi de Castro Sasahara   +5 more
wiley   +1 more source

Cytohistological Changes of the Apoptosis Ovarian Follicles in the Puberty Mouse Ovary

Scientific Papers Animal Science and Biotechnologies, 2023
Apoptosis, as a normal physiological process is active in the ovary of all species of mammals, representing the essential factor in maintaining the homeostasis of this organ.
Liliana Petculescu-Ciochina, Nicolae Păcală, Gabi Dumitrescu   +2 more
doaj  

RFRP3 influences basal lamina degradation, cellular death, and progesterone secretion in cultured preantral ovarian follicles from the domestic cat. [PDF]

, 2019
The hypothalamic neuropeptide RFRP3 can suppress hypothalamic GnRH neuron activation and inhibit gonadotropin release from the anterior pituitary. RFRP3 is also produced locally in the ovary and can inhibit steroidogenesis and follicle development in ...
Bentley, George, Comizzoli, Pierre, Wilsterman, Kathryn   +2 more
core   +1 more source

Luteinizing hormone receptor knockout mouse: What has it taught us?

Andrology, EarlyView.
Abstract Luteinizing hormone (LH), along with its agonist choriongonadotropin (hCG) in humans, is the key hormone responsible for the tropic regulation of the gonadal function. LH and hCG act through their cognate receptor, the luteinizing hormone/choriongonadotropin receptor (LHCGR; more appropriately LHR in rodents lacking CG), located in the testis ...
Ilpo T. Huhtaniemi
wiley   +1 more source

Individual 17-Hydroxyprogesterone Responses to hCG Are Not Correlated With Follicle Size in Polycystic Ovary Syndrome. [PDF]

, 2019
Context:In women with polycystic ovary syndrome (PCOS), 17-hydroxyprogesterone (17-OHP) responses to gonadotropin stimulation vary from increased to indistinguishable compared with normal controls.
Chang, R Jeffrey, Duleba, Antoni J, Garzo, Gabriel, Homer, Michael V, Lawson, Mark A, Toloubeydokhti, Tannaz   +5 more
core   +1 more source

Altered expression of Bcl-2 and Bax in follicles within dehydroepiandrosterone-induced polycystic ovaries in rats [PDF]

, 2011
PCOS (polycystic ovary syndrome) is a heterogeneous disease characterized by hyperandrogenaemia, hirsutism, oligo- or amenorrhea, insulin resistance and anovulation.
Abramovich, Dalhia Nurit, Bas, Diana Ester, Hernandez, Silvia Fátima, Tesone, Marta   +3 more
core   +1 more source