NBN and Bloom syndrome: We observed an increased in the expression of double strand break repairs genes: ATM serine/threonine kinase (ATM), Bloom syndrome, RecQ helicase like (BLM), Breast cancer 2, early onset (BRCA2), BRCA1 interacting protein C-terminal helicase 1(BRIP1), Nibrin (NBN), partner and localizer of BRCA2 (PALB2) (Table 1).