Aneuploidy in mammalian oocytes and the impact of maternal ageing

C Charalambous, A Webster, M Schuh - Nature Reviews Molecular Cell …, 2023 - nature.com
During fertilization, the egg and the sperm are supposed to contribute precisely one copy of
each chromosome to the embryo. However, human eggs frequently contain an incorrect …

Origins and mechanisms leading to aneuploidy in human eggs

L Wartosch, K Schindler, M Schuh, JR Gruhn… - Prenatal …, 2021 - Wiley Online Library
The gain or loss of a chromosome—or aneuploidy—acts as one of the major triggers for
infertility and pregnancy loss in humans. These chromosomal abnormalities affect more than …

Regulation of chromosome segregation in oocytes and the cellular basis for female meiotic errors

J Greaney, Z Wei, H Homer - Human Reproduction Update, 2018 - academic.oup.com
BACKGROUND Meiotic chromosome segregation in human oocytes is notoriously error-
prone, especially with ageing. Such errors markedly reduce the reproductive chances of …

Chromosome cohesion decreases in human eggs with advanced maternal age

FE Duncan, JE Hornick, MA Lampson, RM Schultz… - Aging cell, 2012 - Wiley Online Library
Aneuploidy in human eggs increases with maternal age and can result in infertility,
miscarriages, and birth defects. The molecular mechanisms leading to aneuploidy, however …

Human aneuploidy: mechanisms and new insights into an age-old problem

SI Nagaoka, TJ Hassold, PA Hunt - Nature Reviews Genetics, 2012 - nature.com
Trisomic and monosomic (aneuploid) embryos account for at least 10% of human
pregnancies and, for women nearing the end of their reproductive lifespan, the incidence …

Mechanisms of oocyte aneuploidy associated with advanced maternal age

M Mikwar, AJ MacFarlane, F Marchetti - Mutation Research/Reviews in …, 2020 - Elsevier
It is well established that maternal age is associated with a rapid decline in the production of
healthy and high-quality oocytes resulting in reduced fertility in women older than 35 years …

[HTML][HTML] Segregating chromosomes in the mammalian oocyte

AI Mihajlović, G FitzHarris - Current Biology, 2018 - cell.com
Chromosome segregation errors in human oocytes lead to aneuploid embryos that cause
infertility and birth defects. Here we provide an overview of the chromosome-segregation …

[HTML][HTML] Chromosome segregation in the oocyte: what goes wrong during aging

M Wasielak-Politowska, P Kordowitzki - International Journal of Molecular …, 2022 - mdpi.com
Human female fertility and reproductive lifespan decrease significantly with age, resulting in
an extended post-reproductive period. The central dogma in human female reproduction …

[HTML][HTML] Age-associated increase in aneuploidy and changes in gene expression in mouse eggs

H Pan, P Ma, W Zhu, RM Schultz - Developmental biology, 2008 - Elsevier
An increase in the incidence of aneuploidy is well documented with increasing maternal
age, in particular in human females. Remarkably, little is known regarding the underlying …

Effect of maternal age on the frequency of cytogenetic abnormalities in human oocytes

F Pellestor, T Anahory, S Hamamah - Cytogenetic and genome …, 2005 - karger.com
The cytogenetic investigation of human oocytes was initiated in the Sixties, and for the last
four decades, this field of research has never stopped progressing as new technologies …