News tagged with protective effect

Scientists lack complete answers on radiation risk

(AP) -- Thyroid cancer for sure. Leukemia, probably. Too much radiation can raise the risk of developing cancer years down the road, scientists agree, and the young are most vulnerable. But just how much or ...

Mar 21, 2011
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US says too much fluoride in water

(AP) -- Fluoride in drinking water - credited with dramatically cutting cavities and tooth decay - may now be too much of a good thing. It's causing spots on some kids' teeth.

Jan 07, 2011
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Arsenic biomethylation required for oxidative DNA damage

Biomethylation of arsenic compounds appears to cause oxidative DNA damage and to increase their carcinogenicity, according to a new study published online November 23 in the Journal of the National Cancer Institute.

Nov 23, 2009
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