Results 21 to 30 of about 2,475,670 (267)

Regulation of ovarian function in domestic animals: translational insights into human ovarian dynamics and dysfunction [PDF]

Frontiers in Endocrinology
Ovarian follicular development is a tightly regulated, dynamic process coordinated by endocrine, paracrine, neuroendocrine, and vascular mechanisms that together determine follicle recruitment, selection, dominance, and ovulation. In monovulatory mammals,
Dinesh Dadarwal, Rodrigo A. Carrasco
doaj   +2 more sources

The role of pituitary gonadotropins and intraovarian regulators in follicle development: A mini‐review

Reproductive Medicine and Biology, 2021
Background The process of follicle development is tightly regulated by pituitary gonadotropins (follicle‐stimulating hormone [FSH] and luteinizing hormone [LH]) and intraovarian regulators (eg, steroids, growth factors, and cytokines).
Makoto Orisaka, Yumiko Miyazaki, Aya Shirafuji, Chiyo Tamamura, Hideaki Tsuyoshi, Benjamin K. Tsang, Yoshio Yoshida   +6 more
doaj   +2 more sources

Ovarian follicle size or growth rate can both be determinants of ovulatory follicle selection in mice†. [PDF]

Biol Reprod
The endocrinology regulating ovulation of the desired number of oocytes in the ovarian cycle is well described, particularly in mono-ovulatory species. Less is known about the characteristics that make one follicle suitable for ovulation while most other
Richard S, Zhou Y, Jasoni CL, Pankhurst MW.   +3 more
europepmc   +2 more sources

Morphological Characteristics and Transcriptome Landscapes of Chicken Follicles during Selective Development

Animals, 2022
Ovarian follicle selection largely depends on the transition of granulosa cells from an undifferentiated to a fully differentiated state, which is accompanied by morphological and functional changes in follicles.
Ruixue Nie, Xiaotong Zheng, Wenhui Zhang, Bo Zhang, Yao Ling, Hao Zhang, Changxin Wu   +6 more
doaj   +1 more source

Follicle selection in domestic ruminants [PDF]

Bioscientifica Proceedings, 2019
Ultrasound imaging has shown that cattle exhibit 2 or 3 waves of follicular development during an oestrous cycle. The waves consist of the contemporaneous appearance, about every 7 days, of a group of follicles > or = 5 mm in diameter. One follicle gradually becomes larger than the rest (i.e. dominant).
J E, Fortune, J, Sirois, A M, Turzillo, M, Lavoir   +3 more
openaire   +2 more sources

Effects of quercetin on granulosa cells from prehierarchical follicles by modulating MAPK signaling pathway in chicken

Poultry Science, 2023
: Quercetin (Que), widely found in a huge variety of plants, plays important roles in ovarian function. However, to data, there have been no reports about Que regulating granulosa cells (GCs) in prehierarchical follicles in chicken.
Manman Shen, Tao Li, Yuan Feng, Ping Wu, Boris Ramos Serrano, Adileidys Ruiz Barcenas, Liang Qu, Weiguo Zhao   +7 more
doaj   +1 more source

Follicle Selection in Monovular Species [PDF]

Biology of Reproduction, 2001
Follicle deviation is proposed to be the eminent event in follicle selection in monovular species. At deviation, the largest follicle establishes dominance apparently before the second-largest follicle can reach a similar diameter. In cattle, based on diameters of the two follicles at the beginning of deviation, the mechanism becomes established in
O J, Ginther, M A, Beg, D R, Bergfelt, F X, Donadeu, K, Kot   +4 more
openaire   +2 more sources

Genome-Wide Gene Expression Profiles Reveal Distinct Molecular Characteristics of the Goose Granulosa Cells

Frontiers in Genetics, 2021
Granulosa cells (GCs) are decisive players in follicular development. In this study, the follicle tissues and GCs were isolated from the goose during the peak-laying period to perform hematoxylin-eosin staining and RNA-seq, respectively.
Guangliang Gao, Guangliang Gao, Guangliang Gao, Silu Hu, Keshan Zhang, Keshan Zhang, Haiwei Wang, Haiwei Wang, Youhui Xie, Youhui Xie, Changlian Zhang, Changlian Zhang, Rui Wu, Xianzhi Zhao, Xianzhi Zhao, Hongmei Zhang, Hongmei Zhang, Qigui Wang, Qigui Wang   +18 more
doaj   +1 more source

Long-read sequencing reveals the effect of follicle-stimulating hormone on the mRNA profile of chicken granulosa cells from prehierarchical follicles

Poultry Science, 2023
: Follicle selection is an important step in the laying process of chicken, which is closely related to the laying performance and fecundity of hens. Follicle selection mainly depends on the regulation of follicle-stimulating hormone (FSH) secreted by ...
Conghao Zhong, Zhansheng Liu, Dandan Li, Li Kang, Yunliang Jiang   +4 more
doaj   +1 more source

Novel insights into the regulation of LATS2 kinase in prehierarchical follicle development via the Hippo pathway in hen ovary

Poultry Science, 2021
: The large tumor suppressor homolog 2 (LATS2), one of the central regulators of the Hippo/MST signaling pathway, plays an inhibitory role in ovarian function and different organ development and growth in mammals.
Xue Sun, Xiaotian Niu, Ning Qin, Xuesong Shan, Jinghua Zhao, Chang Ma, Rifu Xu, Birendra Mishra   +7 more
doaj   +1 more source