Results 81 to 90 of about 269,488 (343)

Oocyte-secreted factors enhance oocyte developmental competence

Developmental Biology, 2006
The capacity of fully grown oocytes to regulate their own microenvironment by paracrine factors secreted by the oocyte (oocyte-secreted factors, OSFs) may in turn contribute to oocyte developmental competence. Here, we investigated if OSFs have a direct influence on oocyte developmental competence during in vitro maturation (IVM). Bovine cumulus-oocyte
Hussein, T., Thompson, J., Gilchrist, R.
openaire   +4 more sources

A Novel Cultivation System for Germ Cell Proliferation and Sustaining Whole Testicular Niche

Advanced Science, EarlyView.
A hydrogel microneedle‐based system enables whole testicular cultivation, supporting spermatogonial proliferation and enhancing spermatogenesis in vitro. This ‘whole testicular spermatogonia pool’ (WTSP) significantly increases spermatid production and fertility potential in mice. This system also promotes spermatogonial expansion in human fetal testes,
Yu Xia, Xiaoxuan Zhang, Bohang Zhang, Minhui Lu, Qing Cheng, Li Liu, Lifang Shi, Yiqiang Cui, Dingdong Chen, Laihua Li, Xuejiang Guo, Jingtao Guo, Jiahao Sha, Yuanjin Zhao, Yan Yuan   +14 more
wiley   +1 more source

Effect of Heat Stress on Reproduction in Dairy Cows: Insights into the Cellular and Molecular Responses of the Oocyte.

Annual Review of Animal Biosciences, 2017
Among the components of the female reproductive tract, the ovarian pool of follicles and their enclosed oocytes are highly sensitive to hyperthermia. Heat-induced alterations in small antral follicles can be expressed later as compromised maturation and ...
Z. Roth
semanticscholar   +1 more source

Regenerative Hair Pigmentation via Skin Organoids: Adaptive Patterning Mediated by Collagen VI and Semaphorin 3C

Advanced Science, EarlyView.
The release of COL6A3 by fibroblasts is sensed by the CD44 receptor on melanocytes, activating glutathione (GSH) metabolism and increasing melanocyte survival during skin organoid culture. SEMA3C released by bulge cells binds to the NRP1 receptor on melanocytes, regulating microtubule stability and promoting melanocyte recruitment and function during ...
Tingting Li, Xinzhu Li, Xiao Xiang, Jundong Huang, Xinyu Shen, Mengyue Wang, Jingwei Jiang, Shiwen Shao, Zeming Li, Tian Xie, Deming Liu, Yiping Zhao, Rui Ma, Wenyu Wu, Wei Shi, Cheng‐Ming Chuong, Ji Li, Mingxing Lei   +17 more
wiley   +1 more source

Oocyte maturation and quality: role of cyclic nucleotides.

Reproduction, 2016
The cyclic nucleotides, cAMP and cGMP, are the key molecules controlling mammalian oocyte meiosis. Their roles in oocyte biology have been at the forefront of oocyte research for decades, and many of the long-standing controversies in relation to the ...
R. Gilchrist, A. M. Luciano, D. Richani, H. Zeng, X. Wang, M. Vos, S. Sugimura, J. Smitz, F. Richard, J. Thompson   +9 more
semanticscholar   +1 more source

Efficient Somatic Cell Nuclear Transfer by Overcoming Both Pre‐ and Post‐Implantation Epigenetic Barriers

Advanced Science, EarlyView.
Mammalian cloning via SCNT is limited by several epigenetic barriers. Kdm4d/Kdm5b overexpression plus TSA treatment overcomes epigenetic barriers during pre‐implantation development, while tetraploid complementation replaces defective extraembryonic lineages to bypass H3K27me3 imprinting loss to overcome epigenetic barriers in post‐implantation ...
Yamei Li, Shiyu Sun, Yuting Xu, Jixiang Zhang, Yi Du, Yaxin Cao, Zhaodi Liao, Yali Xie, Xinyan Bian, Jiantao Huang, Meijiao Wang, Zhen Liu, Qiang Sun, Falong Lu   +13 more
wiley   +1 more source

Recent advances of the egg\'s freezing: An overview

Journal of Mazandaran University of Medical Sciences, 2018
It is now more than three decades since the first live birth from oocyte cryopreservation. At present, oocyte cryopreservation has become a major component of Assisted Reproductive technologies (ART).
Faranak Aghaz, Mozafar Khazaei
doaj  

Predicting the likelihood of live birth for elective oocyte cryopreservation: a counseling tool for physicians and patients

Human Reproduction, 2016
Study question Can a counseling tool be developed for women desiring elective oocyte cryopreservation to predict the likelihood of live birth based on age and number of oocytes frozen? Summary answer Using data from ICSI cycles of a population of women
R. Goldman, C. Racowsky, L. Farland, S. Munné, L. Ribustello, J. Fox   +5 more
semanticscholar   +1 more source

Therapeutic Repair of Sperm Quality Decline Caused by Polytetrafluoroethylene

Advanced Science, EarlyView.
Exposure to PTFE (teflon), a commonly used microplastic in non‐stick cookware, significantly reduces sperm quality in both humans and mice. Specifically, PTFE induces the disruption of sperm cytoskeleton and F‐actin assembly through targeting SKAP2 in haploid spermatid.
Shiming Gan, Shumin Zhou, Jiaming Zhou, Guanghui Zhang, Jingshou Chen, Rui Liu, Kuan Sun, Sisi Li, Wenjing Xiong, Yujiao Wen, Jianzhong Sheng, Yu Zhang, Jingchao Ren, Youjiang Li, Hefeng Huang, Chen Zhang   +15 more
wiley   +1 more source

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