CRISPR doubles the lifespan of mice with progeria, a rapid-ageing disease.
CRISPR gene-editing in mice was used to correct a mutant that can cause rapid aging, improving dramatically the health and longevity of animals.
Source:
https://www.newscientist.com/article/2264168-crispr-doubles-lifespan-of-mice-with-rapid-ageing-disease-progeria/