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  • Title: Estimation of 24-hour polyamine intake from mature human milk.
    Author: Dorhout B, van Beusekom CM, Huisman M, Kingma AW, de Hoog E, Boersma ER, Muskiet FA.
    Journal: J Pediatr Gastroenterol Nutr; 1996 Oct; 23(3):298-302. PubMed ID: 8890081.
    Abstract:
    It has been suggested that milk polyamines stimulate GI tract proliferation and maturation in newborns. We determined human milk polyamine concentrations and estimated 24-h outputs on days 16 +/- 4 (n = 98), 44 +/- 3 (n = 97) and 91 +/- 6 (n = 25) after delivery. Median concentrations in micromolars were, respectively, putrescine 0.77, 0.63, and 0.63; spermidine 4.54, 3.07, and 2.73; spermine 3.76, 2.90, and 2.22; and total polyamines 9.82, 6.83, and 5.71. Concentrations of spermidine, spermine, and total polyamines decreased during the observation period. Putrescine, spermidine, and spermine milk/maternal plasma ratios were estimated to be 16-19, 14-24, and 44-75, respectively. It would appear that milk polyamines are derived from the high polyamine contents in the mammary gland and that they may be important in infant nutrition.
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