scholarly journals Selenium Deficiency in COVID-19—A Possible Long-Lasting Toxic Relationship

Nutrients ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 283
Author(s):  
Lutz Schomburg
Keyword(s):  
Trace Element ◽  
Human Health ◽  
Selenium Deficiency ◽  
Multiple Roles ◽  
Number Of Publications

In the last two years, there has been a surge in the number of publications on the trace element selenium (Se) and selenocysteine-containing selenoproteins in human health, largely due to the pandemic and the multiple roles that this micronutrient and Se-dependent selenoproteins play in various aspects of the disease [...]

scholarly journals Selenium: Its Role in Livestock Health and Productivity

2010 ◽  
Vol 11 ◽  
pp. 101-106 ◽  
Author(s):  
Dol Raj Khanal ◽  
Anthony P. Knight
Keyword(s):  
Trace Element ◽  
Selenium Deficiency ◽  
Toxic Effects ◽  
Agriculture And Environment ◽  
Margin Of Safety ◽  
Livestock Health ◽  
Livestock Productivity ◽  
Harmful Effects

Selenium (Se) is an essential metalloid trace element that has a very narrow margin of safety between the toxic and deficient doses in animals and humans. This paper highlights about the beneficial and harmful effects of Se in livestock productivity and health besides presenting some information on its relation to Khari disease of buffaloes in Baitadi and Darchula districts and ways to mitigate toxic effects of Se in buffaloes.Key words: Selenium; Deficiency; Toxicity; Khari diseaseThe Journal of AGRICULTURE AND ENVIRONMENT Vol. 11, 2010Page: 101-106Uploaded date: 16 September, 2010

scholarly journals Trace elements geochemistry in high-incidence areas of liver-related diseases, northwestern Ethiopia

2019 ◽  
Vol 42 (5) ◽  
pp. 1235-1254
Author(s):  
Jemal Ahmed
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Selenium Deficiency ◽  
Stream Sediments ◽  
Low Grade ◽  
Geochemical Background ◽  
Water Stream ◽  
Icp Ms ◽  
History Of ◽  
Trace Element Contents

Abstract This paper reports the results of trace elements geochemistry from Tigray national state, northwestern Ethiopia. The area is part of the Arabian-Nubian Shield, where the dominant exposure is low-grade metamorphic rocks and has a long history of liver-related diseases. The increase in the number of liver-related disease patients of the area has been an environmental health issue of national concern. The aim of the study is to determine the level of trace element concentrations and distributions in water and stream sediments of the area and identify the possible sources in relation to human health. Water, stream sediment and rocks samples (20 water, 20 stream sediments, and 6 rock samples) were collected in March 2011 and analyzed for major and trace element contents using ICP-MS, ICP-OES, ion Chromatography, and XRF methods. Bromine, aluminum, fluorine, arsenic, and nitrate values exceed the WHO maximum acceptable concentration (MAC) for drinking purpose. Bromine ranges from 0.11 to 1.48 mg/l show higher values in all samples, and fluorine ranges from 0.21 to 16.49 mg/l show higher values in 20% of the samples. Other trace elements are aluminum—30%, arsenic—10%, and nitrate (NO3)—10%, and they are examples of elements which have above MAC for drinking water. Selenium deficiency may be the other problematic element in the area for which its deficiency is associated with liver damage and heart muscle disorder. The concentration of cobalt and chromium exceeded world geochemical background value in average shale at most sample stations indicated that these stations were in potential risk.

scholarly journals Selenoproteins and Their Impact on Human Health Through Diverse Physiological Pathways

Physiology ◽  
2006 ◽  
Vol 21 (5) ◽  
pp. 307-315 ◽  
Author(s):  
Behzad Moghadaszadeh ◽  
Alan H. Beggs
Keyword(s):  
Trace Element ◽  
Human Health ◽  
Functional Characterization ◽  
Physiological Effects ◽  
Recent Advances ◽  
The Subject ◽  
Physiological Pathways ◽  
Complex Regulation

In the last few decades, the importance of selenium in human health has been the subject of numerous studies. It is believed that the physiological effects of selenium occur mainly through the function of selenoproteins, which incorporate selenium in the form of one or more selenocysteine residues. Recent advances in understanding the complex regulation of selenoprotein synthesis and functional characterization of several members of the selenoprotein family have contributed to an improved comprehension of the role(s) of selenium in human health and the great diversity of physiological pathways influenced by this trace element.

The development of a soluble glass bolus to deliver selenium and cobalt to sheep

1996 ◽  
Vol 1996 ◽  
pp. 245-245
Author(s):  
N.R. Kendall ◽  
A.M. Mackenzie ◽  
S.B. Telfer
Keyword(s):  
Trace Element ◽  
White Muscle ◽  
Selenium Deficiency ◽  
Muscle Disease ◽  
Single Element ◽  
White Muscle Disease ◽  
Soluble Glass ◽  
Copper Supplementation ◽  
Ruminant Animals ◽  
The Uk

Trace element deficiencies have been reported throughout the UK and are known to decrease the productivity and welfare of animals. Selenium deficiency is characterised by muscular myopathy, white muscle disease or stiff lamb disease. Subclinical deficiencies can also cause reduced growth rate and impaired immune function. In ruminant animals, cobalt is required for the synthesis of vitamin B12 and deficiency leads to Pine, characterised by emaciation, anaemia and listlessness. Trace element deficiencies can be due to either a single element or multiple elements. Situations occur particularly in sheep where cobalt and/or selenium are deficient but where copper supplementation can be toxic. To correct these deficiencies, a single long-lasting and effective treatment in the form of a soluble glass bolus has been designed to release cobalt and selenium. This new bolus is similar to the commercial Cosecure® bolus, which is a Co/Se/Cu soluble glass, in which zinc replaces the copper.

scholarly journals Effect of cobalt supplementation on lamb growth rates in the face of cobalt deficiency

2020 ◽  
Vol 8 (2) ◽  
pp. e001099
Author(s):  
Kim Hamer ◽  
Hannah Mylin ◽  
Donald Barrie ◽  
Valentina Busin ◽  
Katharine Denholm
Keyword(s):  
Trace Elements ◽  
Trace Element ◽  
Blood Sample ◽  
Growth Rates ◽  
Selenium Deficiency ◽  
Blood Samples ◽  
The Face ◽  
Cobalt Deficiency ◽  
Lamb Growth

A hill farm in eastern Scotland had noted poor lamb growth rates since 2014. Cobalt, selenium and copper deficiencies were reported from historical blood sample results, and trace element supplementation had been administered to the ewes, but not the lambs. A supplementation trial was undertaken in 2018 to compare the daily liveweight gain (DLWG) between lambs supplemented with trace elements and unsupplemented lambs. The trace element supplements used were intraruminal boluses containing 51-mg cobalt, 10-mg selenium and 60-mg iodine (Downland Essential Lamb bolus, Downland). Blood samples taken two months postsupplementation showed that unsupplemented lambs had cobalt-deficient status, but not selenium deficiency. Lambs supplemented with the trace element boluses had an increase in DLWG of 49 g/day compared with unsupplemented lambs. This case confirms that cobalt supplementation on deficient farms can be associated with a significant improvement in growth rates of growing lambs on Scottish hill farms.

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