home *** CD-ROM | disk | FTP | other *** search
- $Unique_ID{BRK02394}
- $Pretitle{}
- $Title{Can Intake of Some Metals Prevent Cancer?}
- $Subject{poisons poisonous metals prevent cancer iron hemoglobin plumbism
- toxic prevention trace elements chromium copper zinc iodine manganese
- molybdenum selenium polyps precancerous lesion colon cancers neoplasm
- neoplasms poisoning nutrition diet diets metal metallic ca}
- $Volume{B-26,O-26}
- $Log{
- Colonoscopic View of Colon Conditions*0002803.scf}
-
- Copyright (c) 1992,1993 Tribune Media Services, Inc.
-
-
- Can Intake of Some Metals Prevent Cancer?
-
-
- ------------------------------------------------------------------------------
-
- QUESTION: I always thought that metals were poisons to human beings. Now I
- am told that metals can prevent cancer, and can't understand how this might be
- true. Do you know of anything that could help solve this riddle and would you
- please provide me with that information? I am sure many of your readers are
- quite confused by these recent stories.
-
- ------------------------------------------------------------------------------
-
- ANSWER: Your original perception is clearly wrong when you consider that
- irons is certainly a "metal" and forms a vital part of the hemoglobin
- molecule, found in all the red cells in your body. Your thoughts about poison
- metals do hold up, however, when considering the action of excessive amounts
- of lead in the body, a condition known as "plumbism" and certainly a type of
- toxic or poison action. It is your statement about cancer prevention,
- however, that leads us to the real focus of your question, for here we find
- some new reports on the actions of trace elements in our physiology, that
- reveal some interesting evidence. These elements include, chromium, copper,
- zinc, iodine, manganese, molybdenum, and selenium. It is a recent study of
- selenium that attracted the attention of the press, for the interpretation of
- selenium levels in the blood compared to the incidence of colon cancer lead to
- a theory that selenium might be responsible for reducing the occurrence of
- this cancer. Actually the research showed that patients with low levels of
- selenium had three times the chance of developing polyps of the colon than
- people with higher levels. Polyps are known to be a precancerous lesion
- (remember President Reagan's medical history?), and so represent a real risk
- for the development of a colon cancer. Both red meat and shellfish represent
- a good natural source of selenium, which is need in microscopic amounts,
- measured in micrograms, to provide this apparent protection. Scientists are
- still not sure how selenium works, or if this statistical evaluation will hold
- up in future evaluations, but is seems to indicate that more study is needed,
- particularly about the actions of these trace elements.
-
- ----------------
-
- The material contained here is "FOR INFORMATION ONLY" and should not replace
- the counsel and advice of your personal physician. Promptly consulting your
- doctor is the best path to a quick and successful resolution of any medical
- problem.
-
-