Why is oocyte aneuploidy increased with maternal aging?

JY Ma, S Li, LN Chen, H Schatten, XH Ou… - Journal of genetics and …, 2020 - Elsevier
One of the main causes of pregnancy failure and fetus abortion is oocyte aneuploidy, which
is increased with maternal aging. Numerous possible causes of oocyte aneuploidy in aged …

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 …

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 …

Chromosome missegregation in single human oocytes is related to the age and gene expression profile

S Barone, P Sarogni, R Valli, MM Pallotta… - International Journal of …, 2020 - mdpi.com
The growing trend for women to postpone childbearing has resulted in a dramatic increase
in the incidence of aneuploid pregnancies. Despite the importance to human reproductive …

Aging and oocyte competence: A molecular cell perspective

AF Ferreira, M Soares… - WIREs Mechanisms …, 2023 - Wiley Online Library
Follicular microenvironment is paramount in the acquisition of oocyte competence, which is
dependent on two interconnected and interdependent processes: nuclear and cytoplasmic …

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 …

Oocyte ageing and its cellular basis.

U Eichenlaub-Ritter - International Journal of …, 2012 - search.ebscohost.com
Aneuploidy is extremely high in aged human oocytes. Its cellular origin has been elusive.
Trisomy data implicate predominantly meiosis I errors in the genesis of oocyte aneuploidy …

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 …

Why is chromosome segregation error in oocytes increased with maternal aging?

ZB Wang, H Schatten, QY Sun - Physiology, 2011 - journals.physiology.org
It is well documented that female fertility is decreased with advanced maternal age due to
chromosome abnormality in oocytes. Increased chromosome missegregation is mainly …

Epigenetic changes associated with oocyte aging

XW Liang, JY Ma, H Schatten, QY Sun - Science China Life Sciences, 2012 - Springer
It is well established that the decline in female reproductive outcomes is related to
postovulatory aging of oocytes and advanced maternal age. Poor oocyte quality is …