Abstract
Maternal age affects oocyte quality and early embryo development. Aberrant meiosis of oocytes and compromised early embryo development from older females could originate from defects in the nucleus, the cytoplasm, or both. Nuclear transfer has been used for decades as a tool to study nuclear-cytoplasmic interactions in early embryos, and has uncovered genomic imprinting, nuclear reprogramming, and produced animal clones. Here, we describe the technique for investigating nuclear-cyoplasmic interactions in oocytes and zygotes in female reproductive aging. Nuclear transfer can be performed efficiently and effects of the technique itself on meiosis and early embryo development are minimal as long as care is taken to minimize insult to oocytes or embryos. This protocol first focuses on use of nuclear transfer to study nucleus versus cytoplasmic origin in agingassociated meiosis defects in oocytes at the germinal vesicle (GV) stage. Then, nuclear transfer is used at the zygote stage to study nuclear and cytoplasmic abnormality and apoptosis in early development.
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© 2007 Humana Press Inc., Totowa, NJ
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Liu, L., Keefe, D.L. (2007). Nuclear Transfer Methods to Study Aging. In: Tollefsbol, T.O. (eds) Biological Aging. Methods in Molecular Biology™, vol 371. Humana Press. https://doi.org/10.1007/978-1-59745-361-5_15
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DOI: https://doi.org/10.1007/978-1-59745-361-5_15
Publisher Name: Humana Press
Print ISBN: 978-1-58829-658-0
Online ISBN: 978-1-59745-361-5
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