Results 41 to 50 of about 74,702 (344)

The Value of Comparative Animal Research : Krogh’s Principle Facilitates Scientific Discoveries [PDF]

, 2017
There are no conflicts of interest to declare. This paper developed from the 2016 Early Career Impact Award from the Federation of Associations in Behavioral & Brain Sciences to TJS. TJS has received funding from The Leverhulme Trust.
Alward, Beau A., Ebling, Francis J. P., Fernald, Russell D., Kelly, Aubrey, Ophir, Alexander G., Stevenson, Tyler J   +5 more
core   +2 more sources

The Critical Role of Enhanced OXPHOS and Mitochondrial Hyperpolarization in Simulated Microgravity‐Induced Oocyte Maturation Arrest

Advanced Science, EarlyView.
Simulated microgravity induces distinct mitochondrial hyperactivation patterns‐elevated OXPHOS and MMP‐which accelerate meiosis without SAC failure but delays MTOC coalescence, leading to spindle defects and meiotic arrest. Prolonging M‐phase restores MTOC assembly and oocyte maturation.
Lei Ge, Yuqing Gao, Feifei Du, Chiyuan Ma, Tianxia Xiao, Yali Yang, Xiaohua Lei, Jian V. Zhang   +7 more
wiley   +1 more source

Evaluation of Predictors of Response to Ovulation Induction Using Letrozole in Women with Polycystic Ovary Syndrome: A Prospective Cohort Study

Journal of Human Reproductive Sciences
Background: Ovulation induction (OI) in patients with polycystic ovary syndrome (PCOS) remains challenging, and several biomarkers have been evaluated for their ability to predict ovulation.
Shanti Tholiya, Archana Kumari, Reeta Mahey, Mani Kalaivani, Hem Chandra Sati, Mona Sharma, Aarthi K. Jayraj, Neena Malhotra   +7 more
doaj   +1 more source

Association Between the Ratio of Ovarian Stimulation Duration to Original Follicular Phase Length and In Vitro Fertilization Outcomes: A Novel Index to Optimise Clinical Trigger Time

Frontiers in Endocrinology, 2022
The duration of ovarian stimulation which is largely dependent on the ovarian response to hormonal stimulation may influence in vitro fertilization (IVF) outcomes.
Xinyang Zhao, Xinyang Zhao, Xu Zhang, Xu Zhang, Shanshan Wu, Shanshan Wu, Jichun Tan, Jichun Tan   +7 more
doaj   +1 more source

Oocyte maturation in the toad Rhinella arenarum (Amphibia, Anura): Evidence of cAMP involvement in steroid production and action [PDF]

, 2018
In this work, we describe the participation of the adenylate cyclase/3′-5′-cyclic adenonsine monophosphate (cAMP) pathway in the seasonal follicular secretion of progesterone (P 4 ) and testosterone (T), and its relationship with the maturation of ...
Arias Torres, Arias Torres, Canosa, Cerdá, Das, Deng, Eyers, Ferrell, Fortune, Gohin, Gohin, Hammes, Higashijima, Jalabert, Kamangar, Khan, Kwon, Kwon, Levin, Lin, Lin, Lubzens, Marteil, Medina, Miedlich, Nader, Nagahama, Norris, O'Brien, Pang, Pickford, Rasar, Romo, Sadler, Schuetz, Sen, Sen, Smith, Sánchez Toranzo, Sánchez Toranzo, Thomas, Voronina, Vu, White, Yamamoto, Yang, Zelarayán, Zelarayán, Zelarayán   +48 more
core   +1 more source

Nociceptive Nerve‐Derived CGRP Exacerbates Uterine Fibrogenesis in Adenomyosis by Promoting CD140b+ CD146+ Fibroblast Differentiation

Advanced Science, EarlyView.
This study investigates adenomyosis fibrosis in relation to nociceptive nerves. Nociceptive nerve‐secreted CGRP promotes RAMP1hi CD140b+ CD146+ fibroblast differentiation into myofibroblasts through ERK activation, causing severe fibrosis. Rimegepant‐induced CGRP/RAMP1 signaling blockade alleviates fibrosis and restores fertility in a mouse model. This
Zi Ye, Anning Zhao, Xia Li, Yanqing Hao, Dong Huang, Jianmin Chen, Tiantian Li, Yangyang Dai, Wenchao Sun, Lie Ma, Songying Zhang, Liaobing Xin   +11 more
wiley   +1 more source

Functional Divergence of Glycoprotein Hormone Receptors [PDF]

, 2010
Two lamprey glycroprotein hormone receptors (lGpH-R I and II) highly similar with gnathostome GpH-Rs were cloned from sea lamprey testes and thyroid, respectively.
Freamat, Mihael, Sower, Stacia A.
core   +3 more sources

BHLHE40 Cooperates with GATA2/3 to Control Human Syncytiotrophoblast Lineage Differentiation

Advanced Science, EarlyView.
BHLHE40 interacts directly with GATA2 and GATA3 and co‐occupies genomic loci critical for STB differentiation and function. BHLHE40 also affects GATA2/3 binding at enhancer and promoter regions. Moreover, BHLHE40 is potentially involved in genome‐wide remodeling of H3K4me3 and H3K27ac chromatin landscapes through GATA2/3 recruitment, activating ...
Lijin Peng, Weijie Zhao, Chunfang Xu, Yue Li, Jiani Guo, Taotao Zhou, Philip Chiu, Huimei Wu, Qingyu Wu, Yanxing Wei, Shaorong Gao, Meirong Du   +11 more
wiley   +1 more source

Hepatic KLF9 Deficiency Inhibits Dehydroepiandrosterone (DHEA)‐Induced Polycystic Ovary Syndrome via Liver‐Ovary Axis

Advanced Science, EarlyView.
The study shows that liver is a previously unrecognized extraovarian organ that plays a key role about androgen homeostasis in the development of DHEA‐induced PCOS. DHEA is the most common precursor of active androgen, such as DHT, and KLF9 is required for the conversion of DHEA to DHT and hepatic KLF9 might be a potential therapeutic target for PCOS ...
Jianli Song, Zhaoqing Guan, Guiyi Ji, Jing Wang, Xiurui Yan, Yujie Zhang, Yinliang Zhang, Chunfang Ha, Rong Hu, Yongsheng Chang, Yaolin Zhang, Heng Fan   +11 more
wiley   +1 more source

OVARIAN STIMULATION FOR IVF-ET PROCEDURE

Zdravniški Vestnik, 2002
Background. It is well known that the efficiency of fertilization in vitro depends on the number of transferred embryos. To provide the conditions for the development of a higher number of ovarian follicles, from which a higher number of oocytes can be ...
Robert Medved, Sara Korošec, Irena Virant, Helena Meden-Vrtovec   +3 more
doaj