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Selenium content and glutathione peroxidase activity of milk from vegetarian and nonvegetarian women.
J Nutr. 1989 Feb; 119(2):215-20.JN

Abstract

The concentration of selenium (Se) in milk samples obtained from 26 lacto-ovo-vegetarian (vegetarian) women was significantly greater (22.2 +/- 0.8 ng/ml) than from 12 nonvegetarian women (16.8 +/- 1.3). Mean GSH-Px activity (EC 1.11.1.9) in milk from vegetarians was 146% of that in milk from nonvegetarians. A significant correlation between GSH-Px activity and Se concentration was observed (r = 0.76). Likewise a significant correlation was observed between milk linoleic acid content and GSH-Px activity (r = 0.68). In undialyzed samples from vegetarian women, most of the increased content of Se was found in fractions containing proteins of 100 kdaltons (kD) or more. The high glutathione peroxidase activity in milk from vegetarians was associated with selenoproteins in the 90 to 100 kD range. A distinct 40 kD Se peak was also detected in milk from vegetarians. There was no difference in Se intake between the two groups of women. Therefore, although data from the present study show that both the quantity and distribution of Se in human milk can be modified by the maternal diet, the increased Se content and GSH-Px activity in milk from vegetarians cannot be explained by an increased Se intake.

Authors+Show Affiliations

Department of Food Science, University of Illinois, Urbana 61801.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

2918394

Citation

Debski, B, et al. "Selenium Content and Glutathione Peroxidase Activity of Milk From Vegetarian and Nonvegetarian Women." The Journal of Nutrition, vol. 119, no. 2, 1989, pp. 215-20.
Debski B, Finley DA, Picciano MF, et al. Selenium content and glutathione peroxidase activity of milk from vegetarian and nonvegetarian women. J Nutr. 1989;119(2):215-20.
Debski, B., Finley, D. A., Picciano, M. F., Lönnerdal, B., & Milner, J. (1989). Selenium content and glutathione peroxidase activity of milk from vegetarian and nonvegetarian women. The Journal of Nutrition, 119(2), 215-20.
Debski B, et al. Selenium Content and Glutathione Peroxidase Activity of Milk From Vegetarian and Nonvegetarian Women. J Nutr. 1989;119(2):215-20. PubMed PMID: 2918394.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Selenium content and glutathione peroxidase activity of milk from vegetarian and nonvegetarian women. AU - Debski,B, AU - Finley,D A, AU - Picciano,M F, AU - Lönnerdal,B, AU - Milner,J, PY - 1989/2/1/pubmed PY - 1989/2/1/medline PY - 1989/2/1/entrez SP - 215 EP - 20 JF - The Journal of nutrition JO - J Nutr VL - 119 IS - 2 N2 - The concentration of selenium (Se) in milk samples obtained from 26 lacto-ovo-vegetarian (vegetarian) women was significantly greater (22.2 +/- 0.8 ng/ml) than from 12 nonvegetarian women (16.8 +/- 1.3). Mean GSH-Px activity (EC 1.11.1.9) in milk from vegetarians was 146% of that in milk from nonvegetarians. A significant correlation between GSH-Px activity and Se concentration was observed (r = 0.76). Likewise a significant correlation was observed between milk linoleic acid content and GSH-Px activity (r = 0.68). In undialyzed samples from vegetarian women, most of the increased content of Se was found in fractions containing proteins of 100 kdaltons (kD) or more. The high glutathione peroxidase activity in milk from vegetarians was associated with selenoproteins in the 90 to 100 kD range. A distinct 40 kD Se peak was also detected in milk from vegetarians. There was no difference in Se intake between the two groups of women. Therefore, although data from the present study show that both the quantity and distribution of Se in human milk can be modified by the maternal diet, the increased Se content and GSH-Px activity in milk from vegetarians cannot be explained by an increased Se intake. SN - 0022-3166 UR - https://www.unboundmedicine.com/medline/citation/2918394/Selenium_content_and_glutathione_peroxidase_activity_of_milk_from_vegetarian_and_nonvegetarian_women_ L2 - https://academic.oup.com/jn/article-lookup/doi/10.1093/jn/119.2.215 DB - PRIME DP - Unbound Medicine ER -