[ RadSafe ] Uranium and genotoxicity

Steven Dapra sjd at swcp.com
Sat Jun 7 19:54:10 CDT 2008

June 7

         Perhaps you are the presumptuous one, James.  How do you know that 
what *you* are saying is true?  Do you have the academic credentials to 
evaluate Maynard and Hodges, or Leach, or anyone else?  If so, what are they?

Steven Dapra

At 04:24 PM 6/7/08 -0700, Otto G. Raabe wrote:
>At 02:31 PM 6/7/2008, you wrote:
>>Dear Dr. Raabe: Leach and his associates did not measure genotoxicity, 
>>even though karyotyping was readily available to them.  They also did not 
>>measure reproductive toxicity. Why did Leach and his associates ignore 
>>the 1949 work of Maynard and Hodge? Maynard, EA.; Hodge, HC.. Your 
>>statements are quite presumptuous. How do you know that they are true?
>>  Studies of the toxicity of various uranium compounds when fed to 
>> experimental animals. In: Voegtlin C, Hodge HC. , editors. Pharmacology 
>> and Toxicology of Uranium Compounds. New York: McGraw-Hill Book Company, 
>> Inc.; 1949. pp. 309­3376. There are reported biological effects in 
>> animal studies utilizing really immense doses of the most toxic uranyl 
>> ion (UO2--) chemical form of uranium in the U(VI) oxidation state>. 
>> Uranium metal and uranium oxide are relatively inert.
>Health Physics. 94(2):170-179, February 2008.
>Kathren, Ronald L. *; Burklin, Richard K. +
>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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