Resumen de Female breasts are 'older' than their owners
Steve Horvath at the University of California, Los Angeles, performed an analysis of methylation in 7844 samples from 51 different types of tissue. Tissues came from people ranging in age from a fetus to 101 years old. This allowed the team to weed out methylation patterns that varied between tissues, leaving just those that are common to almost all tissues as they age. They used this subset to create an algorithm that could identify the age of a tissue sample. In a group of women with an average age of 46, breast tissue seemed three years older than real age. Horvath thinks that breast tissue ages more quickly because of its constant exposure to hormones.
