Pubertal timing associated with diabetes, breast cancer

A large international study has uncovered genetic associations between the timing of puberty and its links to diseases such as diabetes and breast cancer.

The 180,000-woman study shows menarche is a heritable trait and determined by more than 100 different genetic signals.  

These signals are found within “imprinted” genes, a small subset of genes whose activity differs depending on which parent passes on that gene, write the researchers, who include Graham Giles and Melissa Southey from the University of

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