Amino acid composition of preterm and term breast milk during early lactation
作者： James A. Lemons , Debra Reyman , Lemuel Moye
DOI: 10.1016/0378-3782(83)90015-4
关键词: Protein nitrogen 、 Endocrinology 、 Amino acid composition 、 Internal medicine 、 Amino acid 、 Chemical composition 、 Chemistry 、 Nitrogen 、 Taurine 、 Lactation 、 Breast milk 、 Animal science
摘要: Abstract The amino acid composition of the protein nitrogen (PN) and non-protein (NPN) fractions human milk obtained from mothers delivering maturely at term was studied weekly until 44 weeks postconceptual age. Preterm contained significantly more total (TN) PN than milk; NPN component similar between two groups. amount decreased in both preterm during first lactation (from ≈ 300 mg/100 ml day 7 to 220 8 weeks), while level remained constant (≈ 33 ml). concentrations almost all acids fraction also early lactation, those portion relatively constant. Glutamate (1630 μM) taurine (398 were most plentiful found fraction. No differences detectable group. Amino measured this study accounted for 67% TN present. Whether remaining 33% can be attributed nitrogen-containing substances other and/or methodologic error is not known.
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sci-hub.se 参考文章(16)
C.H.W. Hirs, William H. Stein, Stanford Moore, The amino acid composition of ribonuclease. Journal of Biological Chemistry. ,vol. 211, pp. 941- 950 ,(1954) , 10.1016/S0021-9258(18)71181-2
Vearl Robert Smith, Bruce L. Larson, Lactation : a comprehensive treatise Academic Press. ,(1974)
W. Horwitz, H. Reynolds, P. Chichilo, Official methods of analysis of the Association of Official Analytical Chemists. Official methods of analysis of the Association of Official Analytical Chemists, Washington, DC, USA. pp. 11530003075- ,(1970)
S A Atkinson, G H Anderson, M H Bryan, Human milk: comparison of the nitrogen composition in milk from mothers of premature and full-term infants. The American Journal of Clinical Nutrition. ,vol. 33, pp. 811- 815 ,(1980) , 10.1093/AJCN/33.4.811
A A Jackson, J C L Shaw, A Barber, M H N Golden, Nitrogen Metabolism in Preterm Infants Fed Human Donor Breast Milk: the Possible Essentiality of Glycine Pediatric Research. ,vol. 15, pp. 1454- 1461 ,(1981) , 10.1203/00006450-198111000-00014
Steven J. Gross, Richard J. David, Linda Bauman, R.M. Tomarelli, Nutritional composition of milk produced by mothers delivering preterm The Journal of Pediatrics. ,vol. 96, pp. 641- 644 ,(1980) , 10.1016/S0022-3476(80)80729-3
Richard J. Schanler, William O.H., Composition of breast milk obtained from mothers of premature infants as compared to breast milk obtained from donors The Journal of Pediatrics. ,vol. 96, pp. 679- 681 ,(1980) , 10.1016/S0022-3476(80)80738-4
S.A. Atkinson, M.H. Bryan, G.H. Anderson, Human milk: difference in nitrogen concentration in milk from mothers of term and premature infants. The Journal of Pediatrics. ,vol. 93, pp. 67- 69 ,(1978) , 10.1016/S0022-3476(78)80602-7
John A. Sturman, David K. Rassin, Gerald E. Gaull, Taurine in development Life Sciences. ,vol. 21, pp. 1- 21 ,(1977) , 10.1016/0024-3205(77)90420-9
Gerald R. Reeck, Lloyd Fisher, A STATISTICAL ANALYSIS OF THE AMINO ACID COMPOSITIONS OF PROTEINS International Journal of Peptide and Protein Research. ,vol. 5, pp. 109- 117 ,(2009) , 10.1111/J.1399-3011.1973.TB02325.X