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Breast milk iodine content

Since it has been suggested that the fetus and infant might be more susceptible to the adverse effects of perchlorate on neonatal thyroid function, the perchlorate content of breast milk and infant formulae was assessed. We found that perchlorate was detected in all 49 breast milk samples (median, 9.1pg/l) and in 17 infant formulae (median, 1.5pg/l). There was no correlation between breast milk perchlorate and breast milk iodine content, even in those 27 samples with perchlorate concentrations greater than lOpg/1 (Pearce et al., 2007 b). This is in contrast to the data reported by Kirk et al. (2005) in 6 breast milk samples in which there was a negative correlation between perchlorate and iodine content. Perchlorate has also been detected in cows milk in the US (5.9 1.8 o,g/l) (Kirk et al., 2005) and in Japan (9.4 2.7 J,g/l) (Dyke et al., 2007). [Pg.284]

Figure 28.6 Maternal smoking and neonatal iodine nutrition. Breast-milk iodine and infant s urinary iodine content expressed as fraction of the mother s urinary iodine concentration. Both are measures of iodine transfer from mother to child during breastfeeding. The infant s urinary iodine content is expressed as a fraction of miik iodine content and is an inverse measure of iodine retention in the infant. Reproduced from Laurberg et al., (2004) with permission. Figure 28.6 Maternal smoking and neonatal iodine nutrition. Breast-milk iodine and infant s urinary iodine content expressed as fraction of the mother s urinary iodine concentration. Both are measures of iodine transfer from mother to child during breastfeeding. The infant s urinary iodine content is expressed as a fraction of miik iodine content and is an inverse measure of iodine retention in the infant. Reproduced from Laurberg et al., (2004) with permission.
One study showed that, in full-term infants, manganese is absorbed from breast milk and cow s milk formulas that were either unsupplemented or supplemented with iron, copper, zinc, and iodine (Domer et al. 1989). Manganese intake was greater in the formula-fed infants than in the breast-fed infants due to the higher manganese content of the formula. However, breast-fed infants retained more of their daily intake of... [Pg.203]

Tab. 9.4-8 Iodine content (p,g L ) of breast milk (10th to 20th day of lactation) in Germany at the beginning... Tab. 9.4-8 Iodine content (p,g L ) of breast milk (10th to 20th day of lactation) in Germany at the beginning...
No studies of humans have demonstrated inhibition of iodide transport into breast milk of mothers from thiocyanate in diet. In many countries the most important determinant of thiocyanate levels in blood is tobacco smoking, as discussed above, and smoking is associated with similar increases in thiocyanate in blood as may be found from diets with high cyanide content. We therefore investigated the effect of maternal smoking on iodine transfer to the breast-fed neonate. [Pg.278]

Figure 28.5 shows the iodine concentrations in urine and milk from nonsmoking and smoking mothers, and in urine from their neonates. Whereas urinary iodine concentrations were not different between groups of mothers, the iodine content of breast milk and of neonatal urine was reduced to around 50% if the mother was a smoker. This effect of smoking varied with the cotinine concentrations in mothers, and with the levels of thiocyanate in serum from the mothers and in cord serum (Laurberg et al., 2004). [Pg.278]

The mean iodine content of expressed breast milk produced by the mothers of the cohort was used to calculate individual iodine intakes for their infant. The mean value was lO.lmcg/dl, with a wide range of individual iodine contents from 4 to 28 mcg/dl. It is possible that expressed breast milk with low iodide content came from mothers who themselves were iodine deficient. Pilot observations... [Pg.373]

Iodine deficiency during the perinatal period and exposure to an iodine excess is quite conspicuos. The iodine intake of newborns is entirely dependent on the iodine content of breast milk and formula preparations used to feed them. The minimum recommended dietary allowance (RDA) for different age groups is summarized in Table 50.1. To meet such requirements, the iodine content of formulas for premature newborns should contain 20 j,g/dl, and that of first and follow-up preparations 10 j,g/dl. We refer here to these new... [Pg.477]

Iodine concentration was determined using a modification of the chloric acid digestion method described by Benotti and Benotti for serum. The iodine content of mothers nulk is shown in Table 50.3. Seventy-six percent of the samples had an iodine concentration between 10 and 30p,g/100ml. No statistically significant differences were found between samples of women with premature and term delivery, or between different times during the lactation period. Mean values for the iodine content of breast milk are quite variable. Breast milk is the best source of iodine for the newborn baby. [Pg.479]

Peditrace parenteral solution contains 1.3p.g/ml potassium iodide, equivalent to 1 pgiodide/kg/day. The iodine intake of newborn babies is entirely dependent on the iodine content of breast milk or formula preparations. Breast milk contained more iodine than most of the formulas, especially those for premature babies. It is... [Pg.479]

The volume of food ingested by the infant is small, iodine content in formula preparations is insufficient, and parenteral nutrition does not supply enough iodine. This problem is not exclusive to Spanish premature babies, as the iodine content of many formulas in other countries is also inadequate. Therefore, supplements should be added if iodine intake is found to be inadequate. Breast milk appears to be the best source of iodine for the premature infant. [Pg.480]

Approximately 80% of iodine in human milk is present as L, while, mainly, another six high molecular weight iodine containing molecules (Braetter et al., 1998) account for the remaining 20%. European breast milk samples have been determined to contain 95 + 60 pg/l total iodine. The total iodine content varied depending on the lactation state, and iodine was associated with fat at approximately 30% and 70% of the low molecular weight fraction (Michalke, 2006). A study of iodine species in milk samples obtained from humans from several different European countries and in infant formulas from different manufacturers was carried out by Femandez-Sanchez and Szpunar (Fernandez-Sanchez Szpunar, 1999). The authors also developed a method to determine iodine in human milk and infant formulas using ICP-MS. In the human milk the values found were between 144 + 93.2 pg/ kg, whereas in the infant formulas the values were 53.3 + 19.5 (Fernandez-Sanchez et al., 2007). [Pg.376]

Nearly 50 % of Hungarian population is supplied by drinking water with less than 10 /ug/L and 30 % with 11-25 /jg/L iodine, however it varies widely in the country, and in the same county. Iodine content of breast-milk was found in average of 4,2 ug/dl in 173 samples from 60 mothers on the postpartum... [Pg.379]

Consequently, the workshop recommends specific monitoring of iodine intake of mothers and infants in Europe by periodic analysis of urinary iodine levels, and to the extent feasible, of serum TSH and thyroid hormone measures. The daily intake of iodine should be at least 200 pg in pregnant and lactating women and 90-120 pg in young infants. To reach these objectives, the mothers diet should be systematically supplemented with iodine whenever necessary, by vitamins/minerals tablets as prescribed by physicians. Breast milk is the best source of iodine for the infant, and exclusive breast feeding for 4-6 months should be encouraged. However, when circumstances require that infants receive formula, the iodine content of formula milk should be increased fiom the traditional recommendation of S pg/dl milk to 10 pg/dl for full term and 20 pg/dl for premature babies. [Pg.478]


See other pages where Breast milk iodine content is mentioned: [Pg.1467]    [Pg.279]    [Pg.373]    [Pg.374]    [Pg.386]    [Pg.395]    [Pg.395]    [Pg.396]    [Pg.397]    [Pg.397]    [Pg.398]    [Pg.477]    [Pg.478]    [Pg.479]    [Pg.484]    [Pg.811]    [Pg.15]    [Pg.222]    [Pg.361]   
See also in sourсe #XX -- [ Pg.80 , Pg.479 ]




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