For 27-year-old Tessa Hopson, finding out medication may prevent breast cancer was "incredible".
The Te Awamatu woman has a faulty BRCA1 gene, meaning she has a 50 to 85 per cent lifetime risk of developing breast cancer.
New Zealand PhD researcher Emma Nolan and Australian colleagues yesterday published findings which say Denosumab, a Medsafe-approved drug already used to treat osteoporosis, could prove the "holy grail" in countering the dangerous gene mutation, which prompted Hollywood star Angelina Jolie to have her breasts and ovaries removed.
The study, featuring in the journal Nature Medicine, centres on the BRCA1 gene, which is found in all humans and normally expressed in breast cells and other tissue, where they help repair damaged DNA.