Results 51 to 60 of about 155,820 (386)

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

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

CCDC41 Drives Oocyte Meiotic Progression by Promoting Rab11a/Rab7‐Positive Vesicle Fusion with Target Membranes

Advanced Science, EarlyView.
CCDC41 is essential for meiotic maturation in mouse oocytes through regulating Rab7‐positive endosomes fusion with lysosomes and Rab11a‐positive vesicle fusion with the plasma membrane. Abstract Coiled‐coil domain‐containing protein 41 (CCDC41), a core component of centriolar distal appendages involved in centriole assembly and ciliary vesicle docking,
Ying Tian, Jiatong Li, Jingyi Kang, Xiangning Xu, Bicheng Wang, Shuo Lou, Jingyu Li, Yuying Yang, Yanbing Zhang, Yangzi Zheng, Jing Weng, Yuanjing Liang, Wei Ma   +12 more
wiley   +1 more source

Extragonadal LH/hCG action-Not yet time to rewrite textbooks [PDF]

, 2007
Gonadotropins are indispensable in both sexes in the regulation of gonadal sex steroid production and gametogenesis. In addition to their well-established classical actions, numerous recent publications have indicated the presence and function of ...
Ahtiainen, Petteri, Huhtaniemi, Ilpo, Pakarainen, Tomi, Poutanen, Matti, Rulli, Susana Beatriz, Zhang, Fu Ping   +5 more
core   +3 more sources

Hyperandrogenemia Induces Trophoblast Ferroptosis and Early Pregnancy Loss in Patients With PCOS via CMA‐Dependent FTH1 Degradation

Advanced Science, EarlyView.
In PCOS patients with hyperandrogenemia, decreased ferritin heavy chain 1 (FTH1) causes Fe2⁺ overload and ferroptosis in trophoblasts. Androgens induce FTH1 protein degradation via AR‐LAMP2A‐mediated chaperone‐mediated autophagy pathway, leading to placental development disruption and early pregnancy loss. Metformin mitigates androgen‐induced placental
Hanjing Zhou, Weijie Yang, Na Liu, Qing Liu, Jiamin Jin, Chenqiong Zhao, Xiaoying Jin, Miao Gui, Haiyan Zhu, Songying Zhang, Yinli Zhang   +10 more
wiley   +1 more source

Dysfunctional TRIM31 of POMC Neurons Provokes Hypothalamic Injury and Peripheral Metabolic Disorder under Long‐Term Fine Particulate Matter Exposure

Advanced Science, EarlyView.
Particulate matter ≤2.5 µm (PM2.5) elevates risks of neurological and chronic metabolic diseases, but the underlying mechanisms linking PM2.5‐induced central nervous system (CNS) injury to metabolic dysfunction remain unclear. Hypothalamic pro‐opiomelanocortin‐expressing (POMC+) neurons regulate systemic metabolic homeostasis, and tripartite motif ...
Chenxu Ge, Jiamao Lin, Changsheng Yang, Chuanwang Miao, Fengxiang Li, Shuqiang Zhao, Lei Zou, Xuedong Teng, Lina Liu, Tingguang Li, Yan Sun, Qiang Li, Deshuai Lou, Linfeng Hu, Xi Liu, Gang Kuang, Jing Luo, Minxuan Xu, Minghui Chang, Jun Tan, Yanrong Ren, Bochu Wang   +21 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  

Activity of 3β-hydroxysteroid dehydrogenase associated with progesterone production in bovine granulosa cells cultured under different concentrations of serum, insulin-like growth factor I, and gonadotropin [PDF]

, 2014
Three-β-hydroxysteroid dehydrogenase (3β-HSD) is the enzyme responsible for progesterone production. This study aimed to determine whether 3β-HSD activity can be shown to reflect progesterone production by granulosa cells cultured under different serum
Mihm Carmichael, Monika, Şimsek, Özkan
core   +1 more source

Regulation of gonadotropins by corticotropin-releasing factor and urocortin

Front. Endocrin., 2013
While stress activates the hypothalamic–pituitary–adrenal (HPA) axis, it suppresses the hypothalamic–pituitary–gonadal (HPG) axis. Corticotropin-releasing factor (CRF) is a major regulatory peptide in the HPA axis during stress.
K. Kageyama
semanticscholar   +1 more source