Results 41 to 50 of about 2,750 (119)

Comparative Analysis Among Different Species Reveals That the Androgen Receptor Regulates Chicken Follicle Selection Through Species-Specific Genes Related to Follicle Development

Frontiers in Genetics, 2022
The differences in reproductive processes at the molecular level between viviparous and oviparous animals are evident, and the site in the ovary that synthesizes sex hormones (androgens and oestrogens) and the trends for enriching sex hormones during ...
Ying Huang, Wei Luo, Wei Luo, Xuliang Luo, Xiaohui Wu, Jinqiu Li, Jinqiu Li, Yan Sun, Shuixin Tang, Jianhua Cao, Yanzhang Gong   +10 more
doaj   +1 more source

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

Rescue of follicle development after oocyte-induced ovary dysfunction and infertility in a model of POI

Frontiers in Cell and Developmental Biology, 2023
The mechanisms and aetiology underlying the development of premature ovarian insufficiency (POI) are poorly understood. However, the oocyte clearly has a role as demonstrated by the Double Mutant (DM) mouse model where ovarian dysfunction (6 weeks) is ...
Sairah Sheikh, Belinda K. M. Lo, Heidy Kaune, Jassimran Bansal, Anna Deleva, Suzannah A. Williams   +5 more
doaj   +1 more source

Developmental potential of oocytes fertilized by conventional in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) after cryopreservation and mesometrial autotransplantation of rabbit ovarian tissue

Animal, 2008
Objective: To evaluate mesometrial transplantation of frozen-thawed ovarian tissue in rabbit and to choose the optimized fertilization method for oocytes retrieved from grafts by investigating the capability of oocyte fertilization and further ...
C. Lan, D. Xiaohui, F. Qingzhao, X. Anran, H. Chun-yan, Y. Hongling, Y. Xuan   +6 more
doaj   +1 more source

Analysis of the concentrations of steroid hormones and the expressions of related genes in follicles at 6 h prior to ovulation in White King pigeon

Italian Journal of Animal Science
In poultry, ovulation is governed by steroid hormones: follicular granulosa cells (GCs) secrete progesterone (P4), while theca cells (TCs) produce oestradiol (E2) and testosterone (T), which interact and transform, with characteristic surges pre ...
Wanqing Li, Haodong Zhang, Zhenyu Guo, Ying Wang, Haiming Yang, Zhiyue Wang   +5 more
doaj   +1 more source

In Ovo Injection of CHIR-99021 Promotes Feather Follicle Development via Modulating the Wnt Signaling Pathway and Transcriptome in Goose Embryos (Anser cygnoides)

Frontiers in Physiology, 2022
Feather performs important physiological functions in birds, and it is also one of the economic productions in goose farming. Understanding and modulating feather follicle development during embryogenesis are essential for bird biology and the poultry ...
Ziqiang Feng, Haizhou Gong, Jinhong Fu, Xiaohui Xu, Yupu Song, Xiaomin Yan, Ichraf Mabrouk, Yuxuan Zhou, Yudong Wang, Xianou Fu, Yujian Sui, Tuoya Liu, Chuanghang Li, Zebei Liu, Xu Tian, Le Sun, Keying Guo, Yongfeng Sun, Yongfeng Sun, Jingtao Hu   +19 more
doaj   +1 more source

Extracellular matrix of the developing ovarian follicle [PDF]

Reproduction, 2003
Ovaries can be considered tissues in which endocrine organs--follicles and corpora lutea--continually grow and regress. Follicles have both epithelial and stromal layers in which cell migration or movement, cell division, specialization and differentiation, and death occur. A fluid-filled antrum develops and at ovulation the epithelial cells undergo an
Rodgers, R., Irving-Rodgers, H., Russell, D.   +2 more
openaire   +3 more sources

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

Pulsed Low-Intensity Focused Ultrasound (LIFU) Activation of Ovarian Follicles

IEEE Open Journal of Engineering in Medicine and Biology
Objective: A biological system's internal morphological structure or function can be changed as a result of the mechanical effect of focused ultrasound.
Yan Xiao, Lixia Yang, Yicong Wang, Yu Wang, Yuning Chen, Wenhan Lu, Zhenle Pei, Ruonan Zhang, Yao Ye, Xiaowei Ji, Suying Liu, Xi Dong, Yonghua Xu, Yi Feng   +13 more
doaj   +1 more source

Computational modelling of bovine ovarian follicle development [PDF]

BMC Systems Biology, 2013
Background The development of ovarian follicles hinges on the timely exposure to the appropriate combination of hormones. Follicle stimulating hormone (FSH) and luteinizing hormone (LH) are both produced in the pituitary gland and are transported via the blood circulation to the thecal layer surrounding the follicle.
Iber, Dagmar, de Geyter, Christian
openaire   +3 more sources