Agent Orange linked with aggressive prostate cancer

http://vitals.nbcnews.com/_news/2013/05/13/18229954-agent-orange-linked-with-aggressive-prostate-cancer?lite

by Genevra Pittm, vitals.nbcnews.com
May 13, 2013

Men who were exposed to Agent Orange chemicals used during the Vietnam War are at higher risk for life-threatening prostate cancer than unexposed veterans, researchers have found.

What's more, those who served where the herbicide was used were diagnosed with cancer about five years earlier than other men, on average, in the new study.

"This is a very, very strong predictor of lethal cancer," said urologist Dr. Mark Garzotto, who worked on the study at the Portland Veterans Affairs Medical Center in Oregon.

-----

Agent Orange - named after the giant orange drums in which the chemicals were stored - was used by the U.S. military to destroy foliage, mainly in southern Vietnam. The herbicide was often contaminated with a type of dioxin, a potently carcinogenic chemical.

The Vietnam Red Cross Society has estimated that up to one million Vietnamese suffered disabilities or health problems as a result of Agent Orange, including children born with birth defects years after their parents were exposed.

Past research has also suggested that U.S. veterans who served where Agent Orange was used are at an increased risk of lymphoma and certain other cancers, including prostate cancer.

-----

Separating out different types of tumors showed the herbicide was not linked to an increased risk of slower-growing, low-grade cancer. But it was tied to a 75 percent higher risk of being diagnosed with aggressive prostate cancer, the study team reported Monday in the journal Cancer.

"The increase in the rate of cancers was almost exclusively driven by the potentially lethal cancers," said Garzotto, who’s also associated with Oregon Health & Science University.

-----