Results 41 to 50 of about 8,556 (220)

Regulation of ovarian function: the role of anti-Mullerian hormone [PDF]

, 2002
Anti-Mullerian hormone (AMH), also known as Mullerian inhibiting substance, is a member of the transforming growth factor beta superfamily of growth and differentiation factors.
Durlinger, A.L.L. (Alexandra), Themmen, A.P.N. (Axel), Visser, J.A. (Jenny)   +2 more
core   +2 more sources

Comparative Biometrical and Follicular Study in Pig Ovary

Scientific Papers Animal Science and Biotechnologies, 2023
Porcine ovaries are a biological material frequently used in studies that analyze follicular development processes, oocyte maturation in close connection with the stages of the estrus cycle. Ovarian follicles and their degree of development represent the
Ion Valeriu Caraba
doaj  

Androgen Action in the Ovary

Frontiers in Endocrinology, 2018
Androgen production by the ovary is an essential requirement for normal cyclical secretion of estradiol but its physiological role extends to important actions on both preantral and antral follicle development, including promotion of granulosa cell ...
Stephen Franks, Kate Hardy
doaj   +1 more source

New hyaluronan-based biomatrix for 3-D follicle culture yields functionally competent oocytes

Reproductive Biology and Endocrinology, 2022
Background Encapsulation of follicles within a biomatrix is one approach to maintaining 3-D follicle architecture during culture. Hyaluronan is one component of the natural extracellular matrix (ECM) that provides support to cells in vivo.
Nina Desai, Maribeth Spangler, Vaani Nanavaty, Arsela Gishto, Alyssa Brown   +4 more
doaj   +1 more source

Short-term preservation of canine preantral follicles : effects of temperature, medium and time [PDF]

, 2009
The use of the large pool of preantral follicles is a promising alternative to provide high numbers of fertilizable oocytes to reproductive biotechnology.
Báo, Sônia Nair, Campello, Claudio Cabral, Celestino, Juliana Jales de Hollanda, Chaves, Roberta Nogueira, Figueiredo, José Ricardo de, Jewgenow, Katarina, Lopes, Cláudio Afonso Pinho, Melo, Mônica Aline Parente, Santo, Regiane Rodrigues dos, Silva, José Roberto Viana   +9 more
core   +1 more source

Development of antral follicles after xenografting of isolated small human preantral follicles

Reproductive BioMedicine Online, 2008
Small human pre-antral follicles can be enzymatically isolated from the surrounding stroma, and are able to survive after 7 days of xenografting. The aim of the present study was to assess the developmental capacity of enzymatically isolated human follicles after long-term xenografting to severe combined immunodeficient (SCID) mice.
Marie-Madeleine, Dolmans, Wu Yuan, Yuan, Alessandra, Camboni, Antoine, Torre, Anne, Van Langendonckt, Belen, Martinez-Madrid, Jacques, Donnez   +6 more
openaire   +2 more sources

Granulosa cell-derived miR-379-5p regulates macrophage polarization in polycystic ovarian syndrome

Frontiers in Immunology, 2023
Polycystic ovarian syndrome (PCOS) is associated with hyperandrogenemia and ovarian antral follicle growth arrest. We have previously demonstrated that androgen-induced exosomal release of miR-379-5p (miR379) from preantral follicle granulosa cells ...
Reza Salehi, Reza Salehi, Reza Salehi, Reza Salehi, Meshach Asare-Werehene, Meshach Asare-Werehene, Meshach Asare-Werehene, Brandon A. Wyse, Atefeh Abedini, Bo Pan, Alex Gutsol, Sahar Jahangiri, Peter Szaraz, Kevin D. Burns, Barbara Vanderhyden, Barbara Vanderhyden, Barbara Vanderhyden, Julang Li, Dylan Burger, Dylan Burger, Dylan Burger, Clifford L. Librach, Clifford L. Librach, Clifford L. Librach, Clifford L. Librach, Benjamin K. Tsang, Benjamin K. Tsang, Benjamin K. Tsang   +27 more
doaj   +1 more source

Ultrastructural features of agouti (Dasyprocta aguti) preantral follicles cryopreserved using dimethyl sulfoxide, ethylene glycol and propanediol [PDF]

, 2012
The objective was to develop an efficient protocol for cryopreservation of agouti (Dasyprocta aguti) ovarian tissue. Agouti ovarian fragments were placed, for 10 min, in a solution containing MEM and fetal bovine serum plus 1.5 M dimethyl sulfoxide (DMSO)
Báo, Sônia Nair, Campello, Claudio Cabral, Faustino, Luciana Rocha, Figueiredo, José Ricardo de, Lima, Isadora Machado Teixeira, Lopes, Cláudio Afonso Pinho, Luza, Hiédely Kenia Machado, Rodrigues, Ana Paula Ribeiro, Silva, Alexandre Rodrigues, Wanderleya, Livia Schell   +9 more
core   +1 more source

Canine preantral follicles cultured with various concentrations of follicle-stimulating hormone (FSH)

Theriogenology, 2010
The objective was to evaluate the effects of various concentrations of exogenous FSH during in vitro culture of isolated canine preantral follicles. Preantral secondary follicles (>200 microm) were isolated by microdissection and cultured for 18 d in supplemented alpha-Minimum Essential Medium (alpha-MEM).
Michelle Karen Brasil, Serafim, Valdevane Rocha, Araújo, Gerlane Modesto, Silva, Ana Beatriz Graça, Duarte, Anderson Pinto, Almeida, Roberta Nogueira, Chaves, Cláudio Cabral, Campello, Cláudio Afonso Pinho, Lopes, José Ricardo, de Figueiredo, Lúcia Daniel Machado, da Silva   +9 more
openaire   +2 more sources

Pioglitazone suppresses excessive follicular development in murine preantral follicles [PDF]

Journal of Ovarian Research, 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.
Sachiko Nagao, Tsuyoshi Baba, Yuya Fujibe, Sayaka Adachi, Keiko Ikeda, Miyuki Morishita, Yoshika Kuno, Hiroyuki Honnma, Toshiaki Endo, Tamotsu Kiya, Tsuyoshi Saito   +10 more
openaire   +3 more sources