Key points from article :
Senolytic drugs in elderly mice improved health and extended life.
Mayo Clinic study looked at dasatinib and quercetin.
Quercetin is an antioxidant found in apples and other foods.
Oral administration of senolytics improved physical function in old mice.
Remaining life span was extended by 36 percent at human equivalent of 80 years.
Conversely, transplanting senescent cells into young mice reduced survival.
Only small numbers of cells needed to have an effect.
The study was published in the Nature Medicine journal.