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Re: Hormetic Effects of Radiation should not be limited to cancer
Dr. Cohen,
Thanks for the information. I would like to point out
that it is interesting, and unfortuante, no ranges of
values for either unexposed or exposed mice are given.
--- Bernard Cohen <blc+@PITT.EDU> wrote:
>
> goldinem@SONGS.SCE.COM wrote:
>
> In the discussion of hormetic effects, some folks
> say that "a low level of
> radiological stress may stimulate the immune
> system." Is there
> anylaboratory evidence to support such a claim?
>
> ---How about the following:
>
> Effects of radiation on immune response. Different
> columns are percent
> of response to various tests in unexposed mice to
> response in mice
> exposed as indicated [15]. PFC = plaque forming
> cell; MLC = mixed
> lymphocyte culture, used as test of T-cell
> function; Con A =
> concanavalin-A, lectin that stimulates
> T-lymphocytes; NK = natural
> killer cells which recognize and kill tumor cells;
> ADCC = anti-body
> dependent cell mediated cytotoxicity, which assists
> NK activity.
>
> Test 2.5
> cGy 5 cGy
>
> 7.5cGy
>
> PFC Reaction 110
>
> 143 174
>
> MLC Reaction 109
>
> 133 122
>
> Reaction to Con A 191
>
> 155 530
>
> NK activity 112
>
> 109 119
>
> ADCC Activity 109
>
> 128 132
>
> Ref. 15: Liu SJ. Multilevel mechanisms of
> stimulatory effect of low
> dose radiation on immunity. In: Sugahara T, Sagan
> LA, Aoyama T, ed. Low
> Dose Irradiation and Biological Defense Mechanisms.
> Amsterdam, Elsevier
> Science, 1992:225-232
>
> >
> >
>
=====
+++++++++++++++++++
"Everyone is ignorant, only on different subjects."
Will Rogers
-- John
John Jacobus, MS
Certified Health Physicist
e-mail: crispy_bird@yahoo.com
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