concentration selenium optimal

concentration selenium optimal

(PDF) Optimal serum selenium concentrations are associated ...

Optimal serum selenium concentrations are associated with lower depressive symptoms and negative mood among young adults ... Negative mood was also lowest around a selenium concentration of 85 mg/L. Selenium concentration was less reliably related to positive mood.The finding that higher concentrations of selenium-particularly $110 mg/L-were ...

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Optimal Serum Selenium Concentrations Are Associated

The Journal of Nutrition Nutrition and Disease Optimal Serum Selenium Concentrations Are Associated with Lower Depressive Symptoms and Negative Mood among Young Adults1–3 Tamlin S Conner, 4* Aimee C Richardson, and Jody C Miller5 Departments of 4Psychology and 5Human Nutrition, University of Otago, Dunedin, New Zealand Abstract

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Food intake and serum selenium concentration in elderly ...

Selenium was determined in serum and analyzed by graphite-furnace atomic absorption spectrometry. Results: Selenium intake and serum concentration were both within the normal range. The major contributors to selenium intake were cereals and bakery, fish

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Establishing optimal selenium status: results of a ...

Feb 24, 2010  INTRODUCTION. Intakes of selenium in the United Kingdom fell from a mean of 60 μg/d in 1991 to a minimum of 30 to 40 μg/d in 1995–2000; currently, the mean intake is 48–58 μg/d (1– 3).This has resulted in a reduction in the mean plasma selenium concentration ().Low serum or plasma selenium concentrations, as found in some populations in the United Kingdom and in other countries

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concentration selenium optimal - hyundaicoupe.waw

Selenium, depending on Se concentration, can cause cancer or prevent against cancer. The effect of selenium depends on selenoprotein genotypes and concentration of selenium in the body/diet. Generally the optimal concentration of selenium for BRCA1 mutation carriers and unselected breast cancer is in range 100 – 120µg/l of serum. More +

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Normal Serum Selenium Levels - Seleniumfacts

Oct 01, 2019  Selenium is an important trace element that is needed for the proper functioning of our cells. It is needed in very small amounts, but it might be a good idea to have a blood test done to check the serum selenium level. The Mayo Clinic Laboratories state that the normal concentration in adult human blood serum is 70 to 150 micrograms per liter ...

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Optimal Serum Selenium Concentrations Are Associated with ...

Nov 05, 2014  In young adults, an optimal range of serum selenium between ∼82 and 85 μg/L was associated with reduced risk of depressive symptomatology. This range approximates the values at which glutathione peroxidase is maximal, suggesting that future research should investigate antioxidant pathways linking selenium to mood.

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Food intake and serum selenium concentration in elderly ...

Selenium was determined in serum and analyzed by graphite-furnace atomic absorption spectrometry. RESULTS: Selenium intake and serum concentration were both within the normal range. The major contributors to selenium intake were cereals and bakery, fish

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Selenium Blood Level - an overview ScienceDirect Topics

Based on the NPC reports, a case–cohort study nested within SELECT investigated the effects of selenium and vitamin E supplementation in 1739 cases (489 high-grade cases) by baseline selenium status, which was determined by toenail selenium concentrations [45]. The optimal range of toenail selenium levels for prostate cancer risk reduction in ...

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Selenium (Se) - DCNutrition

The blood selenium concentration of all subjects declined slowly after cessation of supplementation. Selenium uptake from the supplements was not affected by the joint administration of zinc supplements at 15 mg zinc/day. Glutathione peroxidase blood levels did not correlate with blood Se concentrations.

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Trace Elements: Selenium

Selenium Selenium is a trace mineral essential to good health. The major dietary source of selenium is plant foods. Selenium concentrations in plants generally relect the concentration of selenium in soils, but some meats and seafood can also contribute dietary selenium; in the United States, meats and bread are common sources.

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Plasma Selenium Predictive of Thyroid Dysfunction in ...

Jul 06, 2021  Plasma selenium concentration can be a significant predictor of postpartum thyroid dysfunction in women with iodine deficiency but adequate iron status, according to research results published in Clinical Endocrinology.. Because iron levels are “rarely clinically determined” in postpartum women in New Zealand who did not experience significant blood loss during childbirth, researchers ...

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Selenium - Wikipedia

In fish and other wildlife, selenium is necessary for life, but toxic in high doses. For salmon, the optimal concentration of selenium is about 1 microgram selenium per gram of whole body weight. Much below that level, young salmon die from deficiency; much above, they die from toxic excess.

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Calculation of an Adequate Intake (AI) Value and Safe ...

Jul 16, 2018  The required selenium intake for optimal health in Chinese residents was published in 2014. However, the adequate intake (AI) value for Chinese infants 0–3 months old is not established. This study assessed the current selenium nutritional status of 264 lactating Chinese women from three geographical locations with different Se levels (Liangshan in Sichuan province, Enshi in Hubei

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SES - Clinical: Selenium, Serum

Selenium accumulates in biological tissue. The normal concentration in adult human blood serum is 70 to 150 ng/mL (0.15 parts per million) with a population mean value of 98 ng/mL. Optimal selenium concentration is age dependent (see Reference Values); children require less circulating selenium

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Normal Serum Selenium Levels - Seleniumfacts

Oct 01, 2019  Selenium is an important trace element that is needed for the proper functioning of our cells. It is needed in very small amounts, but it might be a good idea to have a blood test done to check the serum selenium level. The Mayo Clinic Laboratories state that the normal concentration in adult human blood serum is 70 to 150 micrograms per liter ...

More

concentration selenium optimal - hyundaicoupe.waw

Selenium, depending on Se concentration, can cause cancer or prevent against cancer. The effect of selenium depends on selenoprotein genotypes and concentration of selenium in the body/diet. Generally the optimal concentration of selenium for BRCA1 mutation carriers and unselected breast cancer is in range 100 – 120µg/l of serum. More +

More

Selenium and Thyroid Disease: From Pathophysiology to ...

Jan 31, 2017  Selenium levels correlate with mortality from all causes: there is an optimal range of concentration of this micronutrient, below and above which there appears to be increased mortality [1, 2]. In fact, a nonlinear association was noted between selenium status and all-cause and cancer mortality in a study with 13,887 participants with a follow ...

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Optimal selenium status linked to better mood for young ...

Nov 10, 2014  “Optimal Serum Selenium Concentrations Are Associated with Lower Depressive Symptoms and Negative Mood among Young Adults” Authors: T.S. Conner, A.C. Richardson, J.C. Miller

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Selenium Blood Level - an overview ScienceDirect Topics

Based on the NPC reports, a case–cohort study nested within SELECT investigated the effects of selenium and vitamin E supplementation in 1739 cases (489 high-grade cases) by baseline selenium status, which was determined by toenail selenium concentrations [45]. The optimal range of toenail selenium levels for prostate cancer risk reduction in ...

More

Selenium - Wikipedia

In fish and other wildlife, selenium is necessary for life, but toxic in high doses. For salmon, the optimal concentration of selenium is about 1 microgram selenium per gram of whole body weight. Much below that level, young salmon die from deficiency; much above, they die from toxic excess.

More

The importance of selenium and zinc deficiency in ...

Feb 01, 2021  The optimal concentration of selenium and selenoproteins is responsible for maintaining the oxidoreductive balance and proper functioning of endothelial cells (Ahsan et al., 2014; Roman et al., 2014). Many scientific studies indicate a relationship between selenium deficiency and an increased risk of developing atherosclerotic plaque within the ...

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10 Selenium Benefits + Sources, Dosage Toxicity - SelfHacked

Jul 30, 2020  The margin between selenium deficiency, optimal and above-optimal levels and toxicity is very narrow. Knowing your selenium status can be helpful in identifying potential health problems. The most common way to measure selenium status is using blood biomarkers that reflect selenium intake, which can include the following [ 1 ]:

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Serum selenium concentration and glutathione peroxidase ...

Serum selenium concentration and glutathione peroxidase activity and selenium content in testes of Polish Konik horses from selenium--deficient area in North-Western Poland. Pilarczyk B, Tomza-Marciniak A, Stankiewicz T, Błaszczyk B, Gaczarzewicz D, Smugała M, Udała J,

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Semen selenium and human fertility

Selenium (Se) was measured in the semen of 125 men from couples consulting for infertility. A 1fI.ean concentration of 71.3 ± 29.7 nglml of semen was found, with a range of 7 to 230 nglml. More than 85% of the Se is in the seminal plasma. There was a significant positive correlation between sperm count and semen Se. Sperm motility

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Uptake, Metabolism and Toxicity of Selenium in Tropical ...

Mar 25, 2020  Selenium toxicity or Selenosis can occur when the optimal concentration of selenium is exceeded. Two major mechanism of selenium toxicity exists; either by induction of oxidative stress or malformation of selenoproteins. Selenium uptake, metabolism and toxicity in tropical plants are hereby discussed in this chapter.

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Erythrocyte selenium concentration predicts intensive care ...

May 07, 2014  The references for plasma selenium concentration were values between 1.07 to 1.27 μmol/L (84 to 100 μg/L), and those for erythrocyte selenium concentration were values between 0.76 to 1.52 μmol/L (60 to 120 μg/L) [24,25].

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Hashimoto's Thyroiditis and Selenium Supplementation - Dr ...

Apr 27, 2018  What is considered optimal selenium intake from food? The current recommended dietary intake of selenium from food is 55-75mcg/day. What foods contain selenium? ... The content of selenium in foods is dependent on the soil concentration of selenium which is very low in some areas.

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Four nutrients to help your hormone imbalance

1. Selenium. The highest concentration of selenium in our bodies is found in the thyroid gland, which needs the nutrient for optimal function. Patients who have an over-active thyroid should have their selenium levels tested, as too much selenium can have adverse effects.

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Selenium Blood Level - an overview ScienceDirect Topics

The selenium serum concentration in 235 prostate cancer cases and 456 matched controls were analyzed from the past Carotene and Retinol Efficacy Trial (CARET) randomized trial. 113 Serum samples were collected a mean of 4.7 years before diagnosis. Significant predictors of low serum selenium concentration in the controls were current smoking status and East Coast US locations.

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Effects of High-Dose Selenium Supplementation on Oxidative ...

Jun 10, 2020  Considering that the lowest concentration for adequate selenium function (i.e., sufficient expression of selenoproteins) in all the age groups has been reported to be 50 ng/ml in previous studies, only 21% (N = 14) of our patients had an optimal selenium concentration at the beginning of the study . At the end of the placebo infusion/selenium ...

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SELENIUM IN SOIL

Selenium concentration in soil is determined by selenium content in soil native substrate, climate, relief and age (Mayland etal., 1989). These fac-tors may contribute either to selenium accumulation during soil forming or its removal during or after soil forming. The soils formed on sedimentary rocks

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Selenium benefits and how it affects healthy aging - Slow ...

Mar 13, 2017  Sufficient selenium levels prevent vitamin E deficiency and its complications. In the body, the greatest concentration of selenium is in the liver, kidney, heart, nails, spleen and tooth enamel. Although cells require only small amounts of selenium, if they receive an inadequate supply it can deteriorate the joints and heart.

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10 Selenium Benefits + Sources, Dosage Toxicity - SelfHacked

Jul 30, 2020  The margin between selenium deficiency, optimal and above-optimal levels and toxicity is very narrow. Knowing your selenium status can be helpful in identifying potential health problems. The most common way to measure selenium status is using blood biomarkers that reflect selenium intake, which can include the following [ 1 ]:

More

Selenium Toxicity - News-Medical

Apr 21, 2021  For example, Astragalus racemosus was reported to have a concentration of almost 15,000 ppm of selenium. These plants are able to grow only on

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Selenium: Benefits, Uses, Side Effects, Dosage, and More

Mar 26, 2021  Selenium is a mineral found in the soil. Selenium naturally appears in water and some foods. While people only need a very small amount, selenium

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Microbiological selenate to selenite conversion for ...

May 01, 2013  Selenium was neither detected in the ethylglycol wash bottle nor in the base wash bottle. The selenium recovery was calculated with the selenium that was added with feed, lost during sampling, measured from the granules and the measured total selenium concentration as soluble and insoluble selenium (C Se (aq + s) end) at the end of each experiment.

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Semen selenium and human fertility

Selenium (Se) was measured in the semen of 125 men from couples consulting for infertility. A 1fI.ean concentration of 71.3 ± 29.7 nglml of semen was found, with a range of 7 to 230 nglml. More than 85% of the Se is in the seminal plasma. There was a significant positive correlation between sperm count and semen Se. Sperm motility

More

Hashimoto's Thyroiditis and Selenium Supplementation - Dr ...

Apr 27, 2018  What is considered optimal selenium intake from food? The current recommended dietary intake of selenium from food is 55-75mcg/day. What foods contain selenium? ... The content of selenium in foods is dependent on the soil concentration of selenium which is very low in some areas.

More

A New Spectrophotometric Method for Determination of ...

A simple, rapid, and sensitive spectrophotometric method for the determination of trace amounts of selenium (IV) was described. In this method, all selenium spices reduced to selenium (IV) using 6 M HCl. Cloud point extraction was applied as a preconcentration method for spectrophotometric determination of selenium (IV) in aqueous solution.

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The risk of selenium deficiency in Malawi is large and ...

Apr 25, 2019  Probability that measured plasma selenium (Se) concentration of women of reproductive age (WRA) would fall below the threshold for the optimal activity of (a) iodothyronine deiodinase (IDI), (b ...

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