Amino acid composition of breast milk from urban Chinese mothers
Journal article
Garcia-Rodenas, Clara L., Affolter, Michael, Vinyes-Parès, Gerard, De Castro, Carlos A., Karagounis, Leonidas G., Zhang, Yumei, Wang, Peiyu and Thakkar, Sagar K.. (2016). Amino acid composition of breast milk from urban Chinese mothers. Nutrients. 8(10), p. Article 606. https://doi.org/10.3390/nu8100606
Authors | Garcia-Rodenas, Clara L., Affolter, Michael, Vinyes-Parès, Gerard, De Castro, Carlos A., Karagounis, Leonidas G., Zhang, Yumei, Wang, Peiyu and Thakkar, Sagar K. |
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Abstract | Human breast milk (BM) amino acid (AA) composition may be impacted by lactation stage or factors related to geographical location. The present cross-sectional study is aimed at assessing the temporal changes of BMAA over lactation stages in a large cohort of urban mothers in China. Four hundred fifty BM samples, collected in three Chinese cities covering eight months of lactation were analyzed for free (FAA) and total (TAA) AA by o-phthalaldehyde/ fluorenylmethylchloroformate (OPA/FMOC) derivatization. Concentrations and changes over lactation were aligned with previous reports. Both the sum and the individual TAA values significantly decreased during the first periods of lactation and then generally leveled off. Leucine and methionine were respectively the most and the least abundant indispensable amino acids across all the lactation stages, whereas glutamic acid + glutamine (Glx) was the most and cystine the least abundant dispensable AA. The contribution of FAA to TAA levels was less than 2%, except for free Glx, which was the most abundant FAA. In conclusion, the AA composition of the milk from our cohort of urban Chinese mothers was comparable to previous studies conducted in other parts of the world, suggesting that this is an evolutionary conserved trait largely independent of geographical, ethnic, or dietary factors. |
Keywords | breast milk; amino acids; lactation period; cross-sectional study |
Year | 2016 |
Journal | Nutrients |
Journal citation | 8 (10), p. Article 606 |
Publisher | Multidisciplinary Digital Publishing Institute (MDPI AG) |
ISSN | 2072-6643 |
Digital Object Identifier (DOI) | https://doi.org/10.3390/nu8100606 |
PubMed ID | 27690094 |
Scopus EID | 2-s2.0-84989326321 |
PubMed Central ID | PMC5083994 |
Open access | Published as ‘gold’ (paid) open access |
Page range | 1-10 |
Funder | NESTEC |
Publisher's version | License File Access Level Open |
Output status | Published |
Publication dates | |
Online | 28 Sep 2016 |
Publication process dates | |
Accepted | 23 Sep 2016 |
Deposited | 28 Nov 2023 |
https://acuresearchbank.acu.edu.au/item/8zzw9/amino-acid-composition-of-breast-milk-from-urban-chinese-mothers
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Publisher's version
OA_Garcia_Rodenas_2016_Amino_acid_composition_of_breast_milk.pdf | |
License: CC BY 4.0 | |
File access level: Open |
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