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Oral selenium inhibits skin reactions to UV light in hairless mice
Abstract:
In different experimental systems oral selenium has a pronounced anti-carcinogenic effect. This includes both spontaneous and chemically-induced cancers (1, 2, 3, 6, 7, 8). Our primary objective was to study the effect of selenium on the carcinogenic potential of UV light in hairless mice. Fairly early in these experiments, however, it became obvious that the selenium-supplemented mice were considerably more resistant to the acute and sub-acute effects of UV light than were the unsupplemented animals. This was found for the inflammatory reaction as well as for the development of pigmentation. As far as we know, this effect of selenium has not previously been described.
Insights
Oral selenium supplementation demonstrated a protective effect against UV-induced skin damage in hairless mice. Selenium-treated mice showed increased resistance to UV light
Area of Science:
- Dermatology
- Oncology
- Nutritional Science
Background:
- Oral selenium exhibits anti-carcinogenic properties in various experimental models.
- Previous research indicates selenium's role in preventing spontaneous and chemically induced cancers.
Purpose of the Study:
- To investigate the impact of selenium on UV radiation-induced carcinogenesis in hairless mice.
- To assess selenium's influence on the skin's response to UV exposure.
Main Methods:
- Hairless mice were used as an experimental model.
- Mice received oral selenium supplementation.
- Exposure to ultraviolet (UV) light was administered to assess carcinogenic potential and skin reactions.
Main Results:
- Selenium-supplemented mice displayed significant resistance to acute and sub-acute effects of UV light.
- This resistance was observed in both inflammatory responses and the development of UV-induced pigmentation.
- The protective effect of selenium against UV radiation was not previously documented.
Conclusions:
- Oral selenium supplementation confers resistance to UV-induced skin damage in hairless mice.
- Selenium may play a role in mitigating the harmful effects of UV radiation on the skin.
- Further research is warranted to explore selenium's photoprotective mechanisms.