Results 91 to 100 of about 264,880 (269)

Equilibrium between anti‐oxidants and reactive oxygen species: a requisite for oocyte development and maturation

Reproductive Medicine and Biology, 2016
Reactive oxygen species (ROS) are required for cellular functioning and are controlled by anti‐oxidants. The ROS influence the follicles, oocytes, endometrium, and their environment.
Manika Kala, Muhammad Vaseem Shaikh, M. Nivsarkar   +2 more
semanticscholar   +1 more source

Predictors of pain during oocyte retrieval

Journal of Psychosomatic Obstetrics and Gynecology, 2017
Introduction: Pain during oocyte retrieval remains prevalent despite detailed and specific pain management protocols. Exploring the role of psychosocial risk factors of pain during the oocyte retrieval could identify possible targets for prevention.
Yoon Frederiksen, Mimi Y. Mehlsen, Signe M. S. Matthiesen, Robert Zachariae, Hans Jakob Ingerslev   +4 more
doaj   +1 more source

Role of Oocyte Morphological Abnormality Rates on the Embryo Development and Implantation

Gynecology Obstetrics & Reproductive Medicine, 2018
OBJECTIVE: The aim of this study was to assess the impact of some oocyte morphological abnormality rates on embryo development and implantation. STUDY DESIGN: Oocyte morphological abnormalities including oocyte size, elliptical shape, vacuole, plain ...
Bulent Emre Bilgic, Cigdem Yayla Abide, Enis Ozkaya, Tayfun Kutlu, Sule Ayla, Ilhan Sanverdi, Gulden Tunali, Erdal Yucel, Savas Kanbur   +8 more
doaj   +1 more source

Hydrodynamic mechanism for stable spindle positioning in meiosis II oocytes [PDF]

PRX Life 2, 043003 (2024)
Cytoplasmic streaming, the persistent flow of fluid inside a cell, induces intracellular transport, which plays a key role in fundamental biological processes. In meiosis II mouse oocytes (developing egg cells) awaiting fertilisation, the spindle, which is the protein structure responsible for dividing genetic material in a cell, must maintain its ...
arxiv   +1 more source

Oocyte mitochondrial function and reproduction

Current Opinion in Obstetrics and Gynecology, 2015
Purpose of review Mitochondria are cellular organelles that are required for energy production. Emerging evidence demonstrates their role in oocyte development and reproduction. In this review, we examine recent animal and clinical studies on the role of
E. Babayev, E. Seli
semanticscholar   +1 more source

Exocyst complex component 1 (Exoc1) loss in dormant oocyte disrupts c-KIT and growth differentiation factor (GDF9) subcellular localization and causes female infertility in mice

Cell Death Discovery
A limited number of female germ cells support reproduction in many mammals. The follicle, composed of oocytes and supporting granulosa cells, forms the basis of oogenesis.
Chi Lieu Kim Nguyen, Yumeno Kuba, Hoai Thu Le, Hossam Hassan Shawki, Natsuki Mikami, Madoka Aoki, Nanako Yasuhara, Hayate Suzuki, Saori Mizuno-Iijima, Shinya Ayabe, Yuki Osawa, Tomoyuki Fujiyama, Tra Thi Huong Dinh, Miyuki Ishida, Yoko Daitoku, Yoko Tanimoto, Kazuya Murata, Woojin Kang, Masatsugu Ema, Yuji Hirao, Atsuo Ogura, Satoru Takahashi, Fumihiro Sugiyama, Seiya Mizuno   +23 more
doaj   +1 more source

Extending prematuration with cAMP modulators enhances the cumulus contribution to oocyte antioxidant defence and oocyte quality via gap junctions.

Human Reproduction, 2016
STUDY QUESTION Can bovine oocyte antioxidant defence and oocyte quality be improved by extending the duration of pre-in vitro maturation (IVM) with cyclic adenosine mono-phosphate (cAMP) modulators?
H. J. Li, M. Sutton-Mcdowall, X. Wang, S. Sugimura, J. Thompson, R. Gilchrist, R. Gilchrist   +6 more
semanticscholar   +1 more source

Oocyte-granulosa cell interactions during mouse follicular development: regulation of kit ligand expression and its role in oocyte growth

Reproductive Biology and Endocrinology, 2006
Ovarian folliculogenesis is regulated by both endocrine and intraovarian mechanisms that coordinate the processes of oocyte growth and somatic cell proliferation and differentiation.
Vanderhyden Barbara C, Thomas Fiona H
doaj   +1 more source

Both diet and gene mutation induced obesity affect oocyte quality in mice

Scientific Reports, 2016
Obesity was shown to cause reproductive dysfunctions such as reduced conception, infertility and early pregnancy loss. However, the possible effects of obesity on oocyte quality are still not fully understood. In this study we investigated the effects of
Yan-jun Hou, Chengcheng Zhu, Xing Duan, Hong-lin Liu, Qiang Wang, Shao‐Chen Sun   +5 more
semanticscholar   +1 more source

The oocyte [PDF]

Human Reproduction, 2012
Laura, Rienzi, Basak, Balaban, Thomas, Ebner, Jacqueline, Mandelbaum   +3 more
openaire   +2 more sources