Distribution of selenium in erythrocytes, plasma, and urine of Chinese men of different selenium status

Xia, Yiming; Zhao, Xin‐Quan; Zhu, L.; Whanger, P. D.

doi:10.1016/0955-2863(92)90042-h

Cited by 28 publications

(8 citation statements)

References 24 publications

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“…The present results on selenium levels and GPX in plasma and erythrocytes from women (Table I) are consistent with those obtained for men living in these three areas Values with different superscripts within a column are significantly different; c-e P < 0.01; f,g P < 0.05. of China [3]. The similar activity of GPX in plasma and erythrocytes from those subjects living in Enshi versus Beijing is consistent with other data showing that GPX activity reaches a plateau even though the blood selenium levels continue to rise [23].…”

Section: Discussionsupporting

confidence: 90%

“…The women with excess selenium were from Southcentral China in rural areas around the city of Enshi in Hubei Province, and their dietary intakes of selenium averaged 759 g per day [3]. The women with excess selenium were from Southcentral China in rural areas around the city of Enshi in Hubei Province, and their dietary intakes of selenium averaged 759 g per day [3].…”

Section: Methodsmentioning

confidence: 99%

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Distribution of selenium between fractions in erythrocytes, plasma, hair, and fingernails of Chinese women living in selenium-deficient, -adequate, and -excessive areas of China

Xia¹,

Ha²,

Hill

et al. 2000

J. Trace Elem. Exp. Med.

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Section: Discussionsupporting

confidence: 90%

Section: Methodsmentioning

confidence: 99%

Distribution of selenium between fractions in erythrocytes, plasma, hair, and fingernails of Chinese women living in selenium-deficient, -adequate, and -excessive areas of China

Xia¹,

Ha²,

Hill

et al. 2000

J. Trace Elem. Exp. Med.

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“…In places where Se levels are very high, animals and plants may accumulate excessive amounts, thus posing a danger of toxicity to humans (van Vleet & Ferrans, 1992;Xia et al, 1992). Conversely, Se deficiency is also a well-established problem for farm animals and human populations in certain parts of the world, and is associated with pathological lesions and with undesirably low biochemical status values (Oldfield, 1999).…”

Section: Introductionmentioning

confidence: 99%

Selenium status and associated factors in a British National Diet and Nutrition Survey: young people aged 4–18 y

et al. 2002

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Objective: Assessment of selenium status to provide normative reference values, and investigation of associated sociodemographic factors, in a national sample of British young people aged 4 -18 y. Setting: National Diet and Nutrition Survey -a nationwide cross-sectional sample of young people aged 4 -18 y living in mainland Britain in 1997. Methods: Selenium status was measured, mainly in fasting blood samples, by plasma selenium concentration in 1127 participants, by red blood cell (RBC) selenium concentration in 1112, and by whole-blood glutathione peroxidase (GPx) activity in 658. Results: No evidence of severe selenium deficiency or toxicity was observed. Plasma selenium concentration was directly correlated with RBC selenium concentration, and both were associated directly, although less strongly, with GPx activity. Plasma and RBC selenium concentrations increased significantly with age, with RBC concentrations significantly higher in older girls than boys. Region of domicile exhibited a significant relationship. Associations also occurred with parental occupational social class, selenium concentrations being higher in more socially advantaged children. Black and Indian children had considerably higher concentrations than Caucasian children. Concentrations, especially of plasma selenium, were significantly lower in children either (or both) of whose parents were smokers, although, unexpectedly, there was no evidence that children who themselves smoked had lower levels. Conclusions: The observed associations between selenium status indices and age, gender, social class, parental smoking and ethnic group indicate a complex network of biological factors which determine selenium concentrations in blood components, and which thus need to be controlled for when using these indices to assess selenium status in young people.

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“…Hemoglobin and GPX are the two major selenium-containing proteins in erythrocytes [20]. Supplementation of the deficient Chinese with organic selenium resulted in nearly all of the selenium with hemoglobin, but supplementation with inorganic selenium resulted in most of the selenium with GPX [21]. In addition to GPX, selenoprotein P and albumin are the other major selenium-containing proteins in plasma [20].…”

mentioning

confidence: 99%

Commentary: Selenium

Whanger

2001

J Trace Elements Exper Med

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Distribution of selenium in erythrocytes, plasma, and urine of Chinese men of different selenium status

Cited by 28 publications

References 24 publications

Distribution of selenium between fractions in erythrocytes, plasma, hair, and fingernails of Chinese women living in selenium-deficient, -adequate, and -excessive areas of China

Distribution of selenium between fractions in erythrocytes, plasma, hair, and fingernails of Chinese women living in selenium-deficient, -adequate, and -excessive areas of China

Selenium status and associated factors in a British National Diet and Nutrition Survey: young people aged 4–18 y

Commentary: Selenium

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