The Mayo Clinic Laboratories state that the normal concentration in adult human blood serum is 70 to 150 micrograms per liter (the same as 70 to 150 nanograms per milliliter). According to the Mayo Clinic, the US population mean value is 98 micrograms per liter [Mayo …
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So far, selenium levels in the Elk River do not exceed Canadian Drinking Water Quality Guidelines of 50 µg/L. Therefore, consuming small amounts of river water is unlikely to cause problems. Selenium concentrations notwithstanding, drinking untreated water from the river is highly discouraged. Is Elk Valley tap water safe to drink?
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Table 1shows that selenium concentration in serum or plasma depends greatly on the region where people live. Considerable regional differences even exist with-in the individual countries [22]. As arule, children show lower selenium levels than adults [13]. Selenium can be detected both in plasma and in the erythrocytes.
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The primary dietary sources of selenium include nuts, cereals, meat, fish, and eggs, with its bioavailability influenced by soil composition and dietary factors. Serum selenium levels are reflective of both short-term and long-term selenium status, offering a reliable biomarker for nutritional assessment.
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Selenium is a trace mineral that exists in minimal concentrations in the body but can play an essential role in human health. Food sources high in selenium include Brazil nuts, …
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Thirty-nine gilts, 82 days old, divided into 3 groups, were fed the main diet supplemented by 0; 0.3 and 0.6 mg Se/kg in the form of Seenriched yeast during 99 days. Selenium levels of 0.3 and 0.6 mg/kg diet led to no significant bodyweight gain nor increase in body mass in any of the studied periods. However, gilts fed a diet supplemented with selenium (0.3 and 0.6 mg/kg) during the …
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Blood selenium concentrations ranged from 0.050-0.266 ppm. Thirty-eight of 202 horses (18.8%) had a selenium level less than or equal to 0.099 ppm. Twenty-one of 74 farms (28.4%) had at least 1 horse with a selenium level less than or equal to 0.099 ppm. Animal husbandry practices had a significant influence on selenium status.
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The aim of the study was to compare the levels of bioavailable Se between different organs in beef cattle with regard to selenium status. The animals were divided into two groups based on serum selenium concentration, viz. normal and deficient Se status. Bioavailable selenium was extracted from the organs by simulated in vitro digestion, and its concentration …
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Selenium concentration values for human urine samples are presented, and the literature on the chemical species of the element in urine is critically reviewed. Daily excretion levels in healthy persons and in pathological or experimental conditions are compiled. Medical implications and the signific …
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Serum selenium levels: Evaluating serum selenium concentration is a standard method to assess selenium deficiency. National and international guidelines often provide …
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The selenium level in our samples was similar to the Finland urban men aged 55-69 y (mean toenail selenium concentration, 0.47 mg/kg) and the Netherland subcohort populations which randomly drawn from the Netherland total Cohort study on diet and cancer (mean toenail selenium concentration, 0.553 mg/kg) .
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Selenium (Se) is an essential micronutrient for living organisms and plays a vital role in several major metabolic pathways, such as thyroid hormone metabolism, antioxidant defense systems, and immune functions (Brown and Arthur, 2001; Zimmerman et al., 2015).Se concentration in the Earth's crust is approximately 0.05–0.5 mg/kg (Lemly, 2004), and the …
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According to some authors, serum selenium levels are strongly associated with the severity of liver diseases, including liver cirrhosis. The aim of this study was to determine the relationship between the concentration of selenium and pro-inflammatory and profibrotic cytokines—interleukin-6 (IL-6) and growth differentiation factor 15 (GDF-15) in patients with …
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Despite its critical importance to human health, the range between selenium's nutritional and toxic doses is very narrow. Insufficient daily selenium intake can lead to selenium deficiency, while …
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Results. The median concentration of plasma selenium was 213 μg/L (interquartile range: 181.6–247.4 μg/L) in this study. As shown in Table 1, participants with higher plasma selenium concentrations were more likely to be current smokers (P < 0.01) and higher waist circumference (P < 0.01), systolic blood pressure (P < 0.01). ). Furthermore, participants with …
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selenium concentration levels are the foundational basis of the federal EPA guideline (EPA, 2016). From the egg/ovary tissue the other fish tissue (muscle and whole body) standards and water column standard were derived (EPA, 2016). The most influential step in selenium bioaccumulation in the food web is the
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The most commonly used measures of selenium status are plasma and serum selenium concentrations [2,4]. Plasma or serum selenium concentrations of 8 micrograms ... Bleys J, Navas-Acien A, Guallar E. Serum selenium levels and all-cause, cancer, and cardiovascular mortality among US adults. Arch Intern Med 2008;168:404-10.
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Background: The associations among dietary selenium intake, serum selenium concentration, plasma glucose and glycosylated hemoglobin levels, and diabetes risk remain controversial. This study aimed to evaluate these associations in adults from the United States. Methods: We conducted a cross-sectional study of participants aged 18 years and older who participated in …
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According to some authors, serum selenium levels are strongly associated with the severity of liver diseases, including liver cirrhosis. The aim of this study was to determine the relationship between the concentration of selenium and pro-inflammatory and profibrotic cytokines-interleukin-6 (IL-6) and growth differentiation factor 15 (GDF-15) in patients with …
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Selenium (Se) is an essential trace element for humans and its low or high concentration in vivo is associated with the high risk of many diseases. It is important to identify influential factors of …
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where available selenium levels in the soil are low. Selenium concentrations in legumes and grasses vary when these plants are grown on selenium-normal soils; however, Ocilla usually contains the highest level, and this may be two to ten times as much as is in the gross forage." In areas where soil selenium levels are normal, wheat (Triticum ...
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Optimal Result: 63 - 160 mcg/dL. Interpret Your Laboratory Results Now. Try for $5.99 and cancel anytime! Selenium, a trace element essential for human health, plays a critical role in various …
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However, interaction tests revealed that the association between selenium blood concentrations and ALT levels was significantly influenced by age, gender, and BMI stratifications. Higher selenium concentrations were associated with a significant increase in ALT levels across all age and gender stratifications, with a more pronounced effect in ...
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45 rowsFor the purpose of this review, we report blood plasma or serum levels of selenium as a measure of absorption and bioavailability.
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Results: The mean concentration of selenium was lower in patients with endometrial cancer than in healthy controls (60.63 µg/L (0.77 µmol/L) vs. 78.74 µg/L (0.99 µmol/L), respectively). ... The selenium levels for each quarter and risk factors of endometrial cancer are shown in Table 2. The average level of selenium for all participants of ...
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The amount of selenium in food sources is largely determined by the quality of the soil used to grow them. Rainfall, evaporation, and pH levels all affect selenium concentration in soil. This ...
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Neve J. Human selenium supplementation as assessed by changes in blood selenium concentration and glutathione peroxidase activity. J. Trace Elem. Med. Biol. 1995;9:65–73. doi: 10.1016/S0946-672X(11)80013-1. ... López-Jurado M., Aranda P., Llopis J. Plasma levels of copper, manganese and selenium in an adult population in southern Spain ...
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Background: Selenium plays an important role in defence against acute illness. We investigated, in intensive care unit (ICU) patients, the time course of plasma selenium concentrations and their relationship to systemic inflammatory response syndrome (SIRS), organ dysfunction/failure, infection, and ICU outcome.
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Further, this study is undertaken with the hypothesis that the selenium concentration suppresses the Hg toxicity, and examines the correlation of selenium and mercury concentration with the length-weight, trophic level, and habitat of the fish. ... The levels of selenium in marine fish varied between 0.203 and 0.470 mg/kg, ...
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Low total selenium concentrations in the tertiary volcanic rocks of Arizona and New Mexico are suspected to be the cause of the low selenium levels in crops in this part of the United States. The soil-forming materials of the northeastern United States are derived primarily from sedimentary rocks that predate the major Cretaceous period of ...
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Selenium levels are inversely associated with an increased risk of all-cause mortality and CVD mortality. Similar results were observed in subgroup and sensitivity analyses. Conclusion. Higher serum selenium concentration was independently associated with a decreased risk of all-cause and CVD mortality in patients with CKD.
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Primary standards and treatment techniques protect public health by limiting the levels of contaminants in drinking water. Microorganisms; ... it is an analytic method used to measure the variety of bacteria that are common in water. The lower the concentration of bacteria in drinking water, the better maintained the water system is ...
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Fig. 2 Selenium levels in human tissues in health and in disease. i 1.8 2.0 cancer patients having the lowest selenium levels, disseminated tumor, recurrences of ... a wide range in the selenium concentration of the sera, the mean value was not sig nificantly greater than that for the normal
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The normal concentration in adult human blood serum is 110 to 165 mcg/L. Optimal selenium concentration is age dependent (see Reference Values); children require less circulating …
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Selenium (Se) is an essential element for humans and animals, and Se deficiency-related diseases are a significant global health concern. Tea may help ameliorate Se deficiencies. However, the mechanisms of natural Se enrichment in tea remain poorly understood, particularly in high-Se soils, such as those in Jiangxi Province. This study conducted a comprehensive …
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3.2. Comparison of Se Intake and Se Level between Different Groups of Factors. Table 2 shows the Se intake and Se level between different groups of factors. Males had higher Se intake and blood Se than females. The participants aged 40–59 years had higher Se intake, but no difference in blood concentration was found among the three age groups.
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Selenium level of 5 μg/L was imposed by the United States Environmental Protection Agency (USEPA) as a chronic aquatic life criterion [59,60]. It is the highest selenium concentration in surface water to which an aquatic community can be exposed indefinitely without resulting in an unacceptable effect .
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moisture, time, and the concentration of water soluble selenium (HSDB). In plants, selenium is an essential element for growth. In the environment, uptake and accumulation by plants is influenced by the concentration and form of selenium present in soils (Neal, 1990). The most bio-available forms of selenium are considered to be those fractions
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Indications. Selenium is a trace mineral that exists in minimal concentrations in the body but can play an essential role in human health. Food sources high in selenium include Brazil nuts, seeds, mushrooms, fish, seafood, beef, and poultry. Selenium presents in an organic form as selenomethionine in plant food and an inorganic form as selenate and selenite in …
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The most commonly used measures of selenium status are plasma and serum selenium concentrations [2,4]. Plasma or serum selenium concentrations of 8 micrograms ... lung, and other cancers. Cisplatin can reduce selenium levels in hair and serum but whether these reductions have a clinically significant impact is not known [118,119].
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