Re: Radiation as a teratogen

["Gibbs, S Julian" <s.julian.gibbs@vanderbilt.edu>]

Generation of growth and mental retardation in offspring 
does not fit the strict definition of the term 
teratogenesis.  However, common usage includes all 
abnormalities in offspring resulting from an event during 
embryonic/fetal development.  In any case, animal evidence 
of teratogenic effects (like genetic effects) of radiation 
is so overwhelming as to place the burden of proof on one 
who attempts to show no connection.
I agree that we must be careful to separate the effects of 
preconception radiation from those of postconception 
exposure.

***********************************************************
S. Julian Gibbs, DDS, PhD               Voice: 615-322-3190
Professor of Radiology                    FAX: 615-322-3764 
Dept. of Radiology & Radiological Sciences
Vanderbilt University Medical Center
Nashville TN 37232-2670 Email:s.julian.gibbs@vanderbilt.edu
***********************************************************
If it's free, it's advice;
If you pay for it, it's counseling;
If you can use either one, it's a miracle!

************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html