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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". Source:
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