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If you re a gentleman looking to counteract the effects of ageing, a new study on sheep may have the answer – but you re going to have to say goodbye to your family jewels in return for a slowdown of your DNA s ageing process. Both farmers and scientists have known for some time that castrated male sheep live on average much longer than their intact counterparts, explained first author Victoria Sugrue, an anatomy PhD student at the University of Otago. However, this is the first time anyone has looked at DNA to see if it also ages slower.
Key to the study – more key than knife-wielding boffins lopping sheep s bollocks off hither and thither, anyway – was the concept of an epigenetic clock, a means of measuring the ageing of creatures DNA. In sheep, the researchers found, the clock ticks slower for castrated males than those left intact in the nether regions.
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