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Vertebrate reproductive science and technology
RESEARCH ARTICLE

The impact of obesity on oocytes: evidence for lipotoxicity mechanisms

Linda L.-Y. Wu A , Robert J. Norman A and Rebecca L. Robker A B
+ Author Affiliations
- Author Affiliations

A The Robinson Institute, School of Paediatrics and Reproductive Health, University of Adelaide, Adelaide, SA 5005, Australia.

B Corresponding author. Email: rebecca.robker@adelaide.edu.au

Reproduction, Fertility and Development 24(1) 29-34 https://doi.org/10.1071/RD11904
Published: 6 December 2011

Abstract

Obesity can have detrimental effects on pregnancy rates in natural conceptions and also in women undergoing IVF or intracytoplasmic sperm injection (ICSI). This review summarises the most recent clinical literature investigating whether obesity impacts oocyte quality and early embryo growth. In other tissues, obesity leads to lipotoxicity responses including endoplasmic reticulum stress, mitochondrial dysfunction and apoptosis. Recent reports indicate that lipotoxicity is a mechanism by which obesity may impact oocyte quality.

Additional keywords: endoplasmic reticulum stress, palmitate.


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