[ RadSafe ] DU Proven Deadly To Human Bronchial Cells

[Brennan, Mike (DOH)]

I was wondering about their procedure and its validity, but I knew that
using natural uranium invalidated the experiment as far as concluding
anything about depleted uranium.  It doesn't surprise me that there are
questions about other aspects of this "experiment", too.

I've encountered this with work by "activist scientists" before: They
sample an new medium, or sample and process in a different way, or
interpret the results in a way at odds with the rest of the community
(including the lab that did the work), they don't collect background
samples, and in general do work that is not comparable to any previous
work, and is not likely to be reproduced by anyone else, then trumpet
that they found something.  Usually, even when the errors in their
experiment are glaring no one calls them on it. 

-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On
Behalf Of Otto G. Raabe
Sent: Thursday, May 10, 2007 1:47 PM
To: Roger Helbig; radsafelist
Subject: Re: [ RadSafe ] DU Proven Deadly To Human Bronchial Cells

At 09:29 AM 5/10/2007, Otto G. Raabe wrote:
>At 02:37 AM 5/10/2007, Roger Helbig wrote:
>
>>Subject:  DU Proven Deadly To Human Bronchial Cells Particulate 
>>Depleted Uranium Is Cytotoxic and Clastogenic to Human Lung Cells 
>>Sandra S. Wise, W. Douglas Thompson, AbouEl-Makarim Aboueissa, Michael

>>D. Mason, and John Pierce Wise, Sr.*
>*********************************

>May 10, 2007


The official Pub Med abstract reads

"We assessed the clastogenicity of these compounds and found that at
concentrations of 0, 0.5, 1, and 5 mug/cm2 UO3, 5, 6, 10, and 15% of
metaphase cells exhibit some form of chromosome damage. " Obviously,
5 micrograms per square centimeter is not a "concentration".  The rest
of their stuff is in molar concentrations. It is not really possible to
figure out what this means or what was the actual form of the uranyl
oxide "particles" suspended in acetone after being heated to body
temperature and subjected to degradation processes.

>Otto

**********************************************
Prof. Otto G. Raabe, Ph.D., CHP
Center for Health & the Environment
University of California
One Shields Avenue
Davis, CA 95616
E-Mail: ograabe at ucdavis.edu
Phone: (530) 752-7754   FAX: (530) 758-6140
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