Results 111 to 120 of about 214,536 (370)

RFRP3 influences basal lamina degradation, cellular death, and progesterone secretion in cultured preantral ovarian follicles from the domestic cat. [PDF]

, 2019
The hypothalamic neuropeptide RFRP3 can suppress hypothalamic GnRH neuron activation and inhibit gonadotropin release from the anterior pituitary. RFRP3 is also produced locally in the ovary and can inhibit steroidogenesis and follicle development in ...
Bentley, George, Comizzoli, Pierre, Wilsterman, Kathryn   +2 more
core   +1 more source

Superovulation, in vivo Embryo Recovery and Cryopreservation for Aoudad (Ammotragus Lervia) Females Using Osmotic Pumps and Vitrification : A Preliminary Experience and its Implications for Conservation [PDF]

, 2013
We thank all of the administrative, veterinary and animal keeper staff of the Leon Zoological Park and the embryologists (especially to Claudia Gonzalez) of the Instituto de Ciencias en Reproducción Humana, also to J.I Castillo-Quan for critical reading ...
de Barroso-Padilla, José Jesús, Fierro, Reyna, Gutiérrez-Gutiérrez, Antonio Martin, López-Saucedo, Janet, Pina Aguilar, Raul Eduardo, Ramón-Ugalde, Julio Porfirio   +5 more
core   +1 more source

Efficacy of hormone pre‐treatment before ART to improve reproductive outcomes in infertile women with endometriosis: Network meta‐analysis of randomized controlled trials

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Background Hormone pre‐treatment is still used before assisted reproductive technique (ART) in endometriotic women, but evidence supporting this recommendation is conflicting. Objectives To evaluate whether hormone pre‐treatment with gonadotropin‐releasing hormone (GnRH) agonists or progestogens could improve fertility in women with ...
Gaetano Riemma, Luigi Cobellis, Antonio Simone Laganà, Andrea Etrusco, Luigi Della Corte, Marco Torella, Maria Giovanna Vastarella, Raffaela Maria Carotenuto, Pasquale De Franciscis   +8 more
wiley   +1 more source

The critical radiation intensity for direct collapse black hole formation: dependence on the radiation spectral shape [PDF]

, 2014
It has been proposed that supermassive black holes (SMBHs) are originated from direct-collapse black holes (DCBHs) that are formed at z gtrsim 10 in the primordial gas in the case that H2 cooling is suppressed by strong external radiation.
Inoue, Akio K., Omukai, Kazuyuki, Sugimura, Kazuyuki   +2 more
core   +1 more source

Impairing follicle-stimulating hormone (FSH) signaling in vivo: targeted disruption of the FSH receptor leads to aberrant gametogenesis and hormonal imbalance.

Proceedings of the National Academy of Sciences of the United States of America, 1998
Pituitary gonadotropins follicle-stimulating hormone (FSH) and luteinizing hormone stimulate the gonads by regulating germ cell proliferation and differentiation.
A. Dierich, M. Sairam, L. Monaco, G. Fimia, A. Gansmuller, M. Lemeur, P. Sassone-Corsi   +6 more
semanticscholar   +1 more source

Soyasaponin and vertical microbial transmission: Maternal effect on the intestinal development and health of early chicks

iMeta, EarlyView.
This study investigates the vertical transmission of maternal microbiota in chickens and how it is modulated by maternal soyasaponin supplementation. Using a model spanning the reproductive tract, egg components, and developing chicks, we show that maternal gut and reproductive microbiota, including Bifidobacterium adolescentis (B.
Mingkun Gao, Shu Chen, Hao Fan, Peng Li, Aiqiao Liu, Dongli Li, Xiaomin Li, Yongfei Hu, Guofeng Han, Yuming Guo, Zengpeng Lv   +10 more
wiley   +1 more source

Is Long-Term Heavy Metal Exposure Driving Carriage of Antibiotic Resistance in Environmental Opportunistic Pathogens: A Comprehensive Phenomic and Genomic Assessment Using Serratia sp. SRS-8-S-2018

Frontiers in Microbiology, 2020
The carriage of both, heavy metal and antibiotic resistance appears to be a common trait in bacterial communities native to long-term contaminated habitats, including the Savannah River Site (SRS).
Sherif Gendy, Ashvini Chauhan, Meenakshi Agarwal, Ashish Pathak, Rajesh Singh Rathore, Rajneesh Jaswal   +5 more
doaj   +1 more source

Mouse versus Rat: Profound Differences in Meiotic Regulation at the Level of the Isolated Oocyte [PDF]

, 2011
Cumulus cell-enclosed oocytes (CEO), denuded oocytes (DO), or dissected follicles were obtained 44–48 hr after priming immature mice (20–23 days old) with 5 IU or immature rats (25–27 days old) with 12.5 IU of equine chorionic gonadotropin, and exposed ...
Biggers, Brannstrom, Chen, Chen, Cho, Dekel, Dekel, Dekel, Dekel, Downs, Downs, Downs, Downs, Downs, Downs, Downs, Downs, Downs, Downs, Downs, Eppig, Fagbohun, Fagbohun, Han, Hubbard, LaRosa, LaRosa, Larsen, Magnusson, Makris, Masciarelli, Mouse Genome Sequencing Consortium, Mullins, Norris, Norris, Norris, Racowsky, Rat Genome Sequencing Project Consortium, Ratner, Ratner, Reizel, Richard, Romero, Schultz, Sela-Abramovich, Sela-Abramovich, Sela-Abramovich, Shitsukawa, Tornell, Tornell, Tornell, Tornell, Tornell, Tsafriri, Tsafriri, Vaccari, Vivarelli, Zeilmaker, Zhang, Zhang, Zhang, Zhao   +61 more
core   +2 more sources

IGF-I signaling is essential for FSH stimulation of AKT and steroidogenic genes in granulosa cells.

Molecular Endocrinology, 2013
FSH and IGF-I synergistically stimulate gonadal steroid production; conversely, silencing the FSH or the IGF-I genes leads to infertility and hypogonadism.
P. Zhou, Sarah C. Baumgarten, Yanguang Wu, Jill Bennett, N. Winston, J. Hirshfeld-Cytron, C. Stocco   +6 more
semanticscholar   +1 more source

Establishment of a Predictive Model for the Efficacy of High‐Intensity Focused Ultrasound in the Treatment of Uterine Fibroids

Journal of Ultrasound in Medicine, EarlyView.
Objectives High‐intensity focused ultrasound (HIFU) has demonstrated efficacy as a non‐invasive treatment for uterine fibroids, though individual variability exists. This study aims to develop a risk scoring model using clinical and biochemical features to predict HIFU treatment outcomes.
Huiqing Li, Yanlei Gao, Xiaoyan Zhang, Weili Hou, Yaru Ma, Rui Shi, Peng Ren   +6 more
wiley   +1 more source