Physiologic changes in serotonin concentrations in breast milk during lactation
Physiologic changes in serotonin concentrations in breast milk during lactation
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哺乳期母乳中血清素浓度的生理变化
DOI:
10.1016/j.nut.2020.110969
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发表时间:
2020-11-01
期刊:
影响因子:
4.4
通讯作者:
Chiba, Takeshi
中科院分区:
文献类型:
--
作者:
Maeda, Tomoji;Shioyama, Aki;Chiba, Takeshi
Objectives: Serotonin (5-hydroxytryptamine; 5-HT) plays an important role in milk volume homeostasis in the mammary glands during lactation, and 5-HT in milk also may affect infant development. The aim of this study was to investigate changes in 5-HT concentration in breast milk according to the duration of lactation and evaluate whether the 5-HT concentration varied before and after nursing.Methods: Healthy nursing Japanese women who had a natural delivery or underwent a cesarean delivery at Iwate Medical University Hospital were included in this study.Results: The mean 5-HT concentration in milk was obtained from multiparous mothers 6 to 7 d after delivery (colostrum) and was significantly higher compared with primiparous mothers (24.3 +/- 2.63 versus 18.5 +/- 2.60 ng/mL). Additionally, mean 5-HT concentration increased with increasing lactation duration in primiparous women (colostrum: 18.5 +/- 2.60; 1 mo postdelivery: 19.8 +/- 2.46; 3 mo postdelivery: 22.7 +/- 2.55 ng/ mL); in particular, the mean 5-HT concentration in breast milk 3 mo after delivery was significantly higher than in colostrum. The mean 5-HT concentrations in breast milk in primiparous mothers immediately before nursing, 1 to 2 h after nursing, and immediately before the next nursing event were 23.6 +/- 1.48, 22.82 +/- 1.65, and 21.84 +/- 1.31 ng/mL, respectively; mean 5-HT concentrations in multiparous women were 25.4 +/- 1.65, 23.6 +/- 2.20, or 22.4 +/- 2.09 ng/mL, respectively. There was no significant difference in 5-HT concentrations at each time point between the groups.Conclusion: This information may be useful in determining the role of 5-HT in breast milk on infant development and growth. (C) 2020 Elsevier Inc. All rights reserved.