We've updated our Privacy Policy to make it clearer how we use your personal data.

We use cookies to provide you with a better experience. You can read our Cookie Policy here.

Advertisement
Reproductive Aging Process Reversed in Mice
News

Reproductive Aging Process Reversed in Mice

Reproductive Aging Process Reversed in Mice
News

Reproductive Aging Process Reversed in Mice

Credit: Pixabay
Read time:
 

Want a FREE PDF version of This News Story?

Complete the form below and we will email you a PDF version of "Reproductive Aging Process Reversed in Mice"

First Name*
Last Name*
Email Address*
Country*
Company Type*
Job Function*
Would you like to receive further email communication from Technology Networks?

Technology Networks Ltd. needs the contact information you provide to us to contact you about our products and services. You may unsubscribe from these communications at any time. For information on how to unsubscribe, as well as our privacy practices and commitment to protecting your privacy, check out our Privacy Policy

Researchers have lifted fertility rates in older female mice with small doses of a metabolic compound that reverses the ageing process in eggs, offering hope for some women struggling to conceive.

The University of Queensland study found a non-invasive treatment could maintain or restore the quality and number of eggs and alleviate the biggest barrier to pregnancy for older women.

A team led by UQ’s Professor Hayden Homer found the loss of egg quality through ageing was due to lower levels of a particular molecule in cells critical for generating energy.

“Quality eggs are essential for pregnancy success because they provide virtually all the building blocks required by an embryo,” Professor Homer said.

“We investigated whether the reproductive ageing process could be reversed by an oral dose of a ‘precursor’ compound – used by cells to create the molecule.”

The molecule in question is known as NAD (nicotinamide adenine dinucleotide) and the ‘precursor’ as NMN (nicotinamide mononucleotide).

Professor Homer said fertility in mice starts to decline from around one year of age due to defects in egg quality similar to changes observed in human eggs from older women.

“We treated the mice with low doses of NMN in their drinking water over four weeks, and we were able to dramatically restore egg quality and increase live births during a breeding trial,” Professor Homer said.

Professor Homer said poor egg quality had become the single biggest challenge facing human fertility in developed countries.

“This is an increasing issue as more women are embarking on pregnancy later in life, and one in four Australian women who undergo IVF treatment are aged 40 or older,” he said.

“IVF cannot improve egg quality, so the only alternative for older women at present is to use eggs donated by younger women.

“Our findings suggest there is an opportunity to restore egg quality and in turn female reproductive function using oral administration of NAD-boosting agents – which would be far less invasive than IVF. It is important to stress, however, that although promising, the potential benefits of these agents remains to be tested in clinical trials”.

Reference: Bertoldo, M. J., Listijono, D. R., Ho, W.-H. J., Riepsamen, A. H., Goss, D. M., Richani, D., … Wu, L. E. (2020). NAD+ Repletion Rescues Female Fertility during Reproductive Aging. Cell Reports, 30(6), 1670-1681.e7. https://doi.org/10.1016/j.celrep.2020.01.058

This article has been republished from the following materials. Note: material may have been edited for length and content. For further information, please contact the cited source.

Advertisement