so today's vets don't have to worry about genetic damage from defoliants, just genetic damage from breathing in depleted uranium dust from expended US munitions.
Northern Arizona University biochemist Diane Stearns and her Navajo students are not only gaining knowledge, they are adding to that knowledge with new discoveries about uranium.
The fact that uranium, as a radioactive metal, can damage DNA is well documented. But what Stearns and her collaborators recently have found is that uranium can also damage DNA as a heavy metal, independent of its radioactive properties.
A cell with damaged DNA takes on the appearance of a comet with a "tail" of fragmented DNA. (photo available upon request)
Stearns and her team are the first to show that when cells are exposed to uranium, the uranium binds to DNA and the cells acquire mutations. When uranium attaches to DNA, the genetic code in the cells of living organisms, it can change that code. As a result, the DNA can make the wrong protein or wrong amounts of protein, which affects how the cells grow. Some of these cells can grow to become cancer.
"Essentially, if you get a heavy metal stuck on DNA, you can get a mutation," Stearns explained. Other heavy metals are known to bind to DNA, but Stearns and her colleagues are the first to identify this trait with uranium. Their results were published recently in the journals Mutagenesis and Molecular Carcinogenesis.
http://vocuspr.vocus.com/VocusPR30/DotNet/Newsroom/Query.aspx?SiteName=nau&Entity=PRAsset&SF_PRAsset_PRAssetID_EQ=107192&XSL=PressRelease U.S. Colonel Admits 500 Tons of D.U. Were Used in Iraq
By Jay Shaft
Coalition For Free Thought In Media
5 May 2003
In three separate interviews a U.S. Special Operations Command Colonel admitted that the U.S. and Great Britain fired 500 tons of D.U. munitions into Iraq.
He has also informed me that the G.B.U.-28 BLU 113 Penetrator Bunker Buster 5000 pound bomb contains D.U. in the warhead. Until now, as far as I know, the materials used to make the warhead of the G.B.U-28 have remained shrouded in mystery.
He also admitted that privately the Pentagon has acknowledged the health hazards of D.U. for years.
SNIP
U.S.C.: Well����� (long pause, followed by heavy profanity)�. Okay, I�ll give you some dirt if that�s what you�re looking for. The Pentagon knows there are huge health risks associated with D.U. They know from years of monitoring our own test ranges and manufacturing facilities.
http://www.scoop.co.nz/stories/HL0305/S00050.htm