RE: Hormetic Effects of Radiation should not be limited to cancer

[John Jacobus <crispy_bird@YAHOO.COM>]

There are several studies that show radiation does

lead to increases in various immune system markers. 

To me, however, is the relevance of the effect. For

example, "The immunobiology of low-dose total-body

irradiation: more questions than answers." Safwat A in

Radiat Res. 2000 May;153(5 Pt 1):599-604.   



One problem in cancer treatment is that the body does

not recognize the tumor as a "foreign" body to attack.

 An increased immune response may not lead to any

beneficial effects.  



I am sure that there are those on those on this list

who disagree, and they will hopefully provide some

documentation of positive studies.  



--- 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 any

> laboratory evidence to support such a claim?  In

> other words, any measure

> of changes to hormones, immunoglobulin levels,

> lymphocyte counts, tumor

> suppressor increases,... anything that would

> contribute to a beneficial

> effect (that exceeds the downside)?  The flip side

> of the argument, that

> low levels of radiological stress have a deleterious

> effect, does have

> support in molecular radiation biology and tissue

> culture studies down to

> pretty low levels.

> 

> Have a good, long holiday weekend.

> Eric M. Goldin

> <goldinem@songs.sce.com>

> 

>

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=====

+++++++++++++++++++

"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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