نتایج جستجو برای: human embryos

تعداد نتایج: 1677642  

Journal: :Human Reproduction 2023

Abstract Cellular metabolism provides fundamental components for chromatin dynamics and epigenetics. However, metabolic features, their impact on epigenetic remodeling during mammalian pre-implantation development, remain poorly understood. In this study, we established the landscape of mouse embryos from zygote to blastocyst, quantified absolute carbohydrate metabolites. We found that amino ac...

Journal: :Developmental dynamics : an official publication of the American Association of Anatomists 2006
Shigehito Yamada Chigako Uwabe Tomoko Nakatsu-Komatsu Yutaka Minekura Masaji Iwakura Tamaki Motoki Kazuhiko Nishimiya Masaaki Iiyama Koh Kakusho Michihiko Minoh Shinobu Mizuta Tetsuya Matsuda Yoshimasa Matsuda Tomoyuki Haishi Katsumi Kose Shingo Fujii Kohei Shiota

Morphogenesis in the developing embryo takes place in three dimensions, and in addition, the dimension of time is another important factor in development. Therefore, the presentation of sequential morphological changes occurring in the embryo (4D visualization) is essential for understanding the complex morphogenetic events and the underlying mechanisms. Until recently, 3D visualization of embr...

2014
Shawn L. Chavez Sohyun L. McElroy Nancy L. Bossert Christopher J. De Jonge Maria Vera Rodriguez Denise E. Leong Barry Behr Lynn M. Westphal Renee A. Reijo Pera

A map of human embryo development that combines imaging, molecular, genetic and epigenetic data for comparisons to other species and across pathologies would be greatly beneficial for basic science and clinical applications. Here, we compared mRNA and protein expression of key mediators of DNA methylation and histone modifications between mouse and human embryos, embryos from fertile/infertile ...

Journal: :Molecular human reproduction 2003
Andrea Jurisicova Monica Antenos Sue Varmuza Jonathan L Tilly Robert F Casper

In order to resolve the mechanisms and reasons of cellular fragmentation it is crucial to understand what genes may be responsible for regulation of this process. We report herein that human oocytes and preimplantation embryos possess abundant levels of transcripts encoding cell death suppressors, Mcl-1, Bcl-x and Bag-1, and the cell death inducer genes, Bax and Caspase-2. Lower but detectable ...

Journal: :Journal of Investigative Dermatology 1966

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