http://www.freerepublic.com/tag/nqo12/ en-us Sat, 31 May 2008 05:10:53 GMT Focus Forum 15 http://www.freerepublic.com/focus/f-news/2023885/posts Enlarge ImageImpervious. A mutation in the NQO1 enzyme makes breast cancer cells harder to treat and more likely to spread.Credit: NCI Breast cancer patients with a mutation in both copies of the NQO1 gene have a 20% lower survival rate 5 years after treatment than do patients without the mutation, according to a new study of more than 2000 Finnish women. Those with the mutation were also four times less likely to respond to a common type of chemotherapy. NQO1 encodes an enzyme that protects cells from oxidative stress, damage to the cell and its DNA caused by reactive... ScienceNOW Daily News http://www.freerepublic.com/focus/f-news/2023885/posts#comment Sat, 31 May 2008 05:10:53 GMT