Results 61 to 70 of about 256,819 (357)

Assembly of the Inner Perivitelline Layer, a Homo log of the Mammalian Zona Pellucida: An Immunohistochemical and Ultrastructural Study [PDF]

, 2012
The avian inner perivitelline layer (IPVL), a homologous structure to the mammalian zona pellucida, is deposited between the granulosa cells and the oocyte cell membrane during folliculogenesis. The glycoprotein meshwork of the IPVL forms a 3-dimensional
Bausek N., Bramwell R.K., Callebaut I., Daniela Rodler, Dunbar B.S., Epifano O., Fred Sinowatz, Goudet G., Jovine L., Jovine L., King A.S., Kinoshita M., Lefievre L., Litscher E.S., Menkhorst E., Mori M., Mugnier S., Pan J., Rahman M.A., Rahman M.A., Richardson K.C., Sasanami T., Sasanami T., Sasanami T., Sasanami T., Sato T., Sinowatz F., Smith J., Spargo S.C., Stewart S.G., Takeuchi Y., Tomohiro Sasanami, Waclawek M., Wassarman P.M., Wassarman P.M., Wassarman P.M., Wyburn G.M., Wyburn G.M.   +37 more
core   +1 more source

A Higher Estradiol Rise After Dual Trigger in Progestin-Primed Ovarian Stimulation Is Associated With a Lower Oocyte and Mature Oocyte Yield in Normal Responders

Frontiers in Endocrinology, 2019
Background: Prior studies have shown that patients with a >10% estradiol (E2) rise after trigger had more oocytes retrieved than plateauing or decreasing E2 responders.
Jialyu Huang, Xuefeng Lu, Jiaying Lin, Ningling Wang, Qifeng Lyu, Hongyuan Gao, Renfei Cai, Yanping Kuang   +7 more
doaj   +1 more source

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

Annual fecundity, batch fecundity, and oocyte atresia of Atka mackerel (Pleurogrammus monopterygius) in Alaskan waters [PDF]

, 2007
Annual potential fecundity, batch fecundity, and oocyte atresia were estimated for Atka mackerel (Pleurogrammus monopterygius) collected in Alaskan waters during 1993−94.
Gunderson, Donald R., Maslenikov, Katherine P., McDermott, Susanne F.   +2 more
core  

Oocyte In Vitro Maturation with Crude Sperm Extract Protein of Bull's Spermatozoa

Journal of Experimental Life Science, 2016
Oocyte In vitro maturation (IVM) is one of the important parts for in vitro fertilization (IVF). The success of oocyte maturation is influenced by the composit ion and the quality of IVM medium.
Bilqis Bilqis, Sri Rahayu, Gatot Ciptadi
doaj   +1 more source

USP9X as a Candidate Mediator of Prenatal Aspirin‐Induced Ovarian Reserve Reduction in Offspring Mice

Advanced Science, EarlyView.
This study suggests that prenatal aspirin exposure is associated with reduced ovarian reserve in offspring, associated with HDAC1‐linked epigenetic downregulation of Usp9x as a candidate mechanism. These preclinical findings provide new insights into fetal‐origin ovarian disorders and contribute to the evidence base concerning aspirin's gestational ...
Yating Li, Caiyun Ge, Wai Yen Yim, Hui Feng, Tiancheng Wu, Lu Chen, Qiaohua Xiong, Shumin Pan, Mei Wang, Huijun Chen, Yuanzhen Zhang, Hui Wang   +11 more
wiley   +1 more source

Mitochondria directly influence fertilisation outcome in the pig [PDF]

, 2006
The mitochondrion is explicitly involved in cytoplasmic regulation and is the cell's major generator of ATP. Our aim was to determine whether mitochondria alone could influence fertilisation outcome.
Abeydeera, Alves, Anderson, Barritt, Barritt, Barritt, Blok, Brenner, Cetica, Clayton, Cohen, Cohen, Cran, de Loos, Downs, Dumollard, Eisen, Emma C Spikings, Findlay, Fong, Hue, Jansen, Justin C St John, King, Koo, Krakauer, Larsson, Larsson, Li, Lin, Liu, Mach  ty, Marchington, Mariana Freitas, Marinos, McConnell, Michaels, Moyes, Park, Pik  , Poulton, Raghu, Reynier, Roca, Sathananthan, Shahinaz H El Shourbagy, Shea, Spelbrink, St John, St John, St John, St John, St. John, Stojkovic, Sun, Tessa, Tian, Trimarchi, Ursing, Van Blerkom, Van Blerkom, Van Blerkom, Wakayama, Wallace, Wilmut, Zamzami, Zernicka-Goetz   +66 more
core   +3 more sources

Precise Regulation of Membrane Proteins: From Physical Technology to Biomolecular Strategy

Advanced Science, EarlyView.
This review summarizes the emerging strategies for the precise regulation of membrane proteins using physical stimuli and biomolecule‐based tools. These methods provide new insights into cell regulation and offer promising directions for future disease treatment.
Xiu Zhao, Qingqing Zhou, Mengli Li, Wen Zou, Zhenzhong Zhang, Jinjin Shi, Junjie Liu   +6 more
wiley   +1 more source

Relationships among tissues, biofluids, and otolith selenium concentrations in wild female burbot (Lota lota)

Integrated Environmental Assessment and Management, EarlyView., 2023
Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves, Noëlie Molbert, David M. Janz, Lauren D. Hayhurst, Jessica E. Brandt, Lauren Timlick, Vince P. Palace   +6 more
wiley   +1 more source

A Biomarker‐Driven Ovary–Endometrium Organ‐on‐a‐Chip Mimicking 3D Multicellular Complexity and Menstrual Cyclicity for Predicting Reproductive Toxicity

Advanced Science, EarlyView.
We present a dual‐organ, biomarker‐integrated ovaryendometrium organ‐on‐a‐chip that recapitulates 3D tissue complexity, menstrual cycle dynamics, and hormonal crosstalk. This platform enables real‐time, cell‐typespecific fluorescent readouts of reproductive toxicity using ANGPTL4 and SERPINB2 as early‐response reporters.
Soo‐Rim Kim, Eun‐kyung Min, Choon‐Mi Lee, Chan Hum Park, Byung‐Chul Oh, YunJae Jung, In‐Sun Hong   +6 more
wiley   +1 more source