Selenium Geochemistry and Health

@inproceedings{Fordyce2007SeleniumGA,
  title={Selenium Geochemistry and Health},
  author={Fiona M. Fordyce},
  booktitle={Ambio},
  year={2007}
}
  • F. Fordyce
  • Published in Ambio 1 February 2007
  • Environmental Science
Selenium (Se) is a naturally occurring metalloid element, which is essential to human and other animal health in trace amounts but is harmful in excess. Of all the elements, Se has one of the narrowest ranges between dietary deficiency ( 400 µg day-1) (1) making it necessary to carefully control intakes by humans and other animals hence the importance of understanding the relationships between environmental exposure and health. Geology exerts a fundamental control on the concentrations of Se in… 
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Selenium (Se) is an essential micronutrient for humans and other animals. Its deficiency in food can cause cancer, cardiovascular and other diseases in humans. In high concentrations, Se is toxic for
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References

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TLDR
China possesses one of the best epidemiological databases in the world on Se-related diseases which has been used in conjunction with geochemical data to demonstrate a significant geochemical control on human Se exposure and the precise geographical areas at risk and the geochemical controls on selenium availability have yet to be established.
Selenium in plant and animal nutrition
TLDR
It is imperative that scientists and policy makers recognize the deficiency, adequacy, and toxicity effects of Se on animal health, and information is presented about these aspects of Se in the plant and animal system.
Selenium in agriculture and the environment
Symposium 2 Newer aspects of micronutrients in at risk groups
TLDR
The purpose of the present short review is to describe some of these newly identified selenoproteins and how they may function in conferring the nutritional essentiality of Se.
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The relation between the trace element selenium and the etiology of cancer in humans remains elusive and intriguing, despite the number of epidemiologic studies published on the topic. We address
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TLDR
600 and 400 micrograms/d were suggested as the individual daily maximum safe selenium intake and the safe dietary selenum intake, respectively, in the prevention of Se-related endemic KD and Kashin-Beck disease.
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TLDR
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TLDR
An endemic disease was discovered in 1961 in parts of the population of Enshi County, Hubei Province of the People's Republic of China and the morbidity was almost 50% in the 248 inhabitants of the five most heavily affected villages; its cause was determined to be selenium intoxication.
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