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Selenium, zinc, and copper concentrations in the blood and milk of lactating women.
Biol Trace Elem Res. 2001 Mar; 79(3):221-33.BT

Abstract

The aim of the study was to determine Se, Zn, and Cu concentrations in blood plasma and milk of lactating women from central Poland who were in different stages of lactation and to investigate the relationship between the content of trace elements in mothers' blood and concentrations of microelements in their milk. Se and Zn concentrations in blood plasma of mothers were the lowest and Cu was the highest on the first 4 d of lactation (colostrum, n = 43) and were found to be 34.9 +/- 11.8 microg/L, 0.51 +/- 0.13 mg/L, and 1.70 +/- 0.55 mg/L, respectively. The highest plasma level of Se and Zn and the lowest content of Cu could be observed between d 10 and 30 of lactation (mature milk, n = 41), and were found to be 54.3 +/- 14.6 microg/L for Se (p < 0.001), 0.76 +/- 0.20 mg/L for Zn (p < 0.001), and 1.03 +/- 0.30 mg/L (p < 0.001) for Cu. The results of Se, Zn, and Cu determination in breast milk samples demonstrate a pattern of decline in their concentration with advancing stages of lactation. We found out that Se, Zn, and Cu concentrations were the highest in colostrum (n = 43) and amounted to 24.8 +/- 10.1 microg/L, 8.2 +/- 2.8 mg/L, and 0.45 +/- 0.11 mg/L, respectively. The content of all determined microelements declined significantly during the time of lactation. Statistically significant linear correlation was found between concentrations of Zn in blood plasma and milk in the first stage of lactation. Weak but statistically significant linear correlations were also found between plasma Se content in plasma and in transitional and mature milk of breast-feeding women.

Authors+Show Affiliations

Department of Toxicology and Carcinogenesis, Nofer Institute of Occupational Medicine, Lodz, Poland.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

11354347

Citation

Wasowicz, W, et al. "Selenium, Zinc, and Copper Concentrations in the Blood and Milk of Lactating Women." Biological Trace Element Research, vol. 79, no. 3, 2001, pp. 221-33.
Wasowicz W, Gromadzinska J, Szram K, et al. Selenium, zinc, and copper concentrations in the blood and milk of lactating women. Biol Trace Elem Res. 2001;79(3):221-33.
Wasowicz, W., Gromadzinska, J., Szram, K., Rydzynski, K., Cieslak, J., & Pietrzak, Z. (2001). Selenium, zinc, and copper concentrations in the blood and milk of lactating women. Biological Trace Element Research, 79(3), 221-33.
Wasowicz W, et al. Selenium, Zinc, and Copper Concentrations in the Blood and Milk of Lactating Women. Biol Trace Elem Res. 2001;79(3):221-33. PubMed PMID: 11354347.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Selenium, zinc, and copper concentrations in the blood and milk of lactating women. AU - Wasowicz,W, AU - Gromadzinska,J, AU - Szram,K, AU - Rydzynski,K, AU - Cieslak,J, AU - Pietrzak,Z, PY - 2001/5/17/pubmed PY - 2001/9/14/medline PY - 2001/5/17/entrez SP - 221 EP - 33 JF - Biological trace element research JO - Biol Trace Elem Res VL - 79 IS - 3 N2 - The aim of the study was to determine Se, Zn, and Cu concentrations in blood plasma and milk of lactating women from central Poland who were in different stages of lactation and to investigate the relationship between the content of trace elements in mothers' blood and concentrations of microelements in their milk. Se and Zn concentrations in blood plasma of mothers were the lowest and Cu was the highest on the first 4 d of lactation (colostrum, n = 43) and were found to be 34.9 +/- 11.8 microg/L, 0.51 +/- 0.13 mg/L, and 1.70 +/- 0.55 mg/L, respectively. The highest plasma level of Se and Zn and the lowest content of Cu could be observed between d 10 and 30 of lactation (mature milk, n = 41), and were found to be 54.3 +/- 14.6 microg/L for Se (p < 0.001), 0.76 +/- 0.20 mg/L for Zn (p < 0.001), and 1.03 +/- 0.30 mg/L (p < 0.001) for Cu. The results of Se, Zn, and Cu determination in breast milk samples demonstrate a pattern of decline in their concentration with advancing stages of lactation. We found out that Se, Zn, and Cu concentrations were the highest in colostrum (n = 43) and amounted to 24.8 +/- 10.1 microg/L, 8.2 +/- 2.8 mg/L, and 0.45 +/- 0.11 mg/L, respectively. The content of all determined microelements declined significantly during the time of lactation. Statistically significant linear correlation was found between concentrations of Zn in blood plasma and milk in the first stage of lactation. Weak but statistically significant linear correlations were also found between plasma Se content in plasma and in transitional and mature milk of breast-feeding women. SN - 0163-4984 UR - https://www.unboundmedicine.com/medline/citation/11354347/Selenium_zinc_and_copper_concentrations_in_the_blood_and_milk_of_lactating_women_ L2 - https://dx.doi.org/10.1385/BTER:79:3:221 DB - PRIME DP - Unbound Medicine ER -