Results 81 to 90 of about 147,586 (226)

Efeito da proteína morfogenética óssea 7 (BMP-7) para a sobrevivência in vitro de folículos préantrais caprino [PDF]

, 2010
O presente trabalho foi conduzido de modo a se verificar o efeito de diferentes concentrações da BMP-7 no desenvolvimento in vitro de folículos pré-antrais caprinos.
Araújo, Valdevane Rocha, Báo, Sônia Nair, Figueiredo, José Ricardo de, Magalhães, Deborah M., Rodrigues, Ana Paula Ribeiro, Silva, Cleidson Manoel Gomes da, Silva, Gerlane Modesto da, Silva, José Roberto Viana   +7 more
core   +1 more source

Letrozole increases preantral follicle growth and decreases estradiol production without impairing follicle survival

Journal of Ovarian Research, 2022
Abstract Background Letrozole has been reported to be effective in treating anovulation, preventing ovarian hyperstimulation syndrome (OHSS), and retrieving oocytes in breast cancer patients. However, the role and mechanism of letrozole in follicular development remain unclear. Results
Fukiko Kasuga-Yamashita, Tsuyoshi Baba, Sachiko Nagao, Yuya Fujibe, Miyuki Morishita, Yoshika Kuno, Tasuku Mariya, Hiroyuki Honnma, Toshiaki Endo, Tamotsu Kiya, Tsuyoshi Saito   +10 more
openaire   +3 more sources

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

SET protein up-regulated testosterone production in the cultured preantral follicles

Reproductive Biology and Endocrinology, 2013
Background We found previously that the expression of SET gene was up-regulated in polycystic ovaries. Evidences suggested that SET protein was essential for regulating both the promoter activity of CYP17A1 and the biological activity of P450c17. In this
Xu Boqun, Gao Lingling, Cui Yugui, Gao Li, Dai Xue, Li Mei, Zhang Yuan, Ma Xiang, Diao Feiyang, Liu Jiayin   +9 more
doaj   +1 more source

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

Zinc Deficiency Disrupts Germ Cell Nest Breakdown During In Vitro Ovary Culture

Molecular Reproduction and Development, Volume 93, Issue 2, February 2026.
ABSTRACT In mammals, the size of the non‐renewable primordial follicle pool is established before or soon after birth. Primordial follicles, each composed of a single oocyte surrounded by somatic cells, are the only source of gametes during the entire reproductive lifespan of the female.
James M. Hester, Suzanne M. Getman, Melissa E. Pepling, Francisco J. Diaz   +3 more
wiley   +1 more source

Morphological Study of Isolated Ovarian Preantral Follicles Using Fibrin Gel Plus Platelet Lysate after Subcutaneous Transplantation [PDF]

Cell Journal, 2015
Objective: Ovarian and follicle transplantation may preserve fertility in young cancer survivors. In this study, we have transplanted preantral follicles using fibrin gel as a carrier and fibrin gel supplemented with platelet lysate (PL) as a rich ...
Ali Reza Rajabzadeh, Hossein Eimani, Homa Mohseni Koochesfahani, Abdol-Hossein Shahvardi, Rouhollah Fathi   +4 more
doaj  

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

Bioengineering Supports Preantral Follicle In Vitro Growth

Animal Research and Veterinary Science, 2022
ecent advances using bioengineering methods (e.g. biomaterials, 3D-printing, microfluidics tec.) has opened the possibility to study female reproductive system and reproductive diseases in a totally new way and with unpredictable ...
openaire   +1 more source

The Role of Anethole in Reproductive Physiology and In Vitro Biotechnologies—A Review

Reproduction in Domestic Animals, Volume 61, Issue 1, January 2026.
ABSTRACT In vitro reproductive biotechnologies show promise for fertility preservation but still face challenges, including oxidative stress from high oxygen tension, which impairs cell viability and development. Antioxidants have been widely explored to attenuate oxidative stress during culture.
André Luiz da Conceição‐Santos, José Ricardo de Figueiredo   +1 more
wiley   +1 more source