Selenium toxicity can occur as a result of excessive selenium supplementation or consumption of plants naturally high in selenium. Selenium Poisoning in Livestock By L.F. James, H.F. Maviand, and K.E. In 1954, the first hints of specific biological functions of selenium were discovered in microorganisms by biochemist, Jane Pinsent. occurring amino acids, methionine and cysteine respectively. 13410-01-0 and 10102-18-8) Administered in Drinking Water . Prooxidant mechanisms of selenium toxicity – a review Miklós Mézes*, Krisztián Balogh ABS Selenium is an essential trace element in living organisms as integral part of TRACT seleno-enzymes. Selenium Poisoning in Livestock By L.F. James, H.F. Maviand, and K.E. to F344/N Rats and B6C3F. Seieniter- ous torage can be found in semiarid areas on soils t ypically derived from Cretaceous geologic material in the Western United States and Canada. References. MacFarquhar, J., Broussard, D., & Maelstrom, P. (2010).
Sodium Selenate and Sodium Selenite (CAS Nos. Seieniter-ous torage can be found in semiarid areas on soils t ypically … NIH Publication 94 …

However, excess amount of selenium is toxic for so-called non-accumulator plants, animals and humans. National Toxicology Program Toxicity Report Series Number 38 NTP Technical Report on Toxicity Studies of . Human selenium blood/plasma levels associated with no selenium intake, and selenium intake in non-fatal and in fatal cases. Plasma and serum levels are both reported under “plasma.” ** indicates a p-value of <0.01 vs. the background group according to the Kruskal-Wallis test with Dunn's multiple comparisons test (data in the fatal cases group were not normally distributed). Acute selenium toxicity has resulted from the ingestion of misformulated over-the-counter products containing very large amounts of selenium [2,5]. General Selenium Information Selenium is an essential nutrient for animals Deficiencies cause: Immune system dysfunction White Muscle Disease Reproductive dysfunction Narrow window between deficiency and toxicity < 0.1 ppm in forages may cause deficiency > 5ppm in forages may cause toxicity Selenium in Plants ADVS 5860/RLR 5860 March 27, 2008 T. Zane Davis. 54 Selenium: Toxicology and radioprotection Biomed Res J 2016;3(1):52–72. General Selenium Information Selenium is an essential nutrient for animals Deficiencies cause: Immune system dysfunction White Muscle Disease Reproductive dysfunction Narrow window between deficiency and toxicity < 0.1 ppm in forages may cause deficiency > 5ppm in forages may cause toxicity. Acute Selenium Toxicity Associated With a Dietary Supplement. Antioxidant properties, deficiency and toxicity - Volume 58 Issue 3 - P.F. Panter ABSTRACT Selenium in certain soils may be taken up by plants in amounts sufficient to make forage toxic to animals. Panter ABSTRACT Selenium in certain soils may be taken up by plants in amounts sufficient to make forage toxic to animals. Selenite and selenomthionine are added to nutritional supplements to increase selenium levels in the body (Fairweather-Tait et al., 2011; Whanger, 2002).

Selenium toxicity causes the hair to become brittle, hair loss, deformed and brittle nails, sloughing off of the nails, discoloration of the teeth, tooth decay and discolored skin. 1. The maximum tolerable concentration of selenium has been estimated to be 5.0 mg selenium kg −1 diet. Kamal M. Abdo, Ph.D., Study Scientist National Toxicology Program Post Office Box 12233 Research Triangle Park, NC 27709. Clinical signs of toxicity include lameness, sloughing of hooves, loss of hair, and emaciation.
Surai A Toxicological Profile for selenium, Draft for Public Comment was released in September, 2001.

Feel free to share more information about selenium toxicity in the comments. The foods rich in selenium are garlic, cabbage, Brazil nuts, broccoli, etc.

Neurological signs comprise of – irritability, exhaustion, lethargy, decreased mental agility, hand tremors, tingling or loss of sensation in the arms or legs, decreased blood pressure, unconsciousness and death. Selenium was also recognized as an important veterinary toxin, which is seen in animals that have eaten high-selenium plants. Selenium overdose is very dangerous and everyone should be aware of the supplements that they take. As of now, selenium toxicity is diagnosed based upon the presence of features of selenosis in humans, since there are no accurate biochemical or preclinical parameters. Selenium Distribution … Selenium came to medical notice later because of its toxicity to industrial workers. In 2008, for example, 201 people experienced severe adverse reactions from taking a liquid dietary supplement containing 200 … Mice .