Infant feeding practice in medieval Japan: stable carbon and nitrogen isotope analysis of human skeletons from Yuigahama-minami
Infant feeding practice in medieval Japan: stable carbon and nitrogen isotope analysis of human skeletons from Yuigahama-minami
复制标题
中世纪日本的婴儿喂养实践：由比滨南人体骨骼的稳定碳和氮同位素分析
DOI：
10.1002/ajpa.22643
复制
发表时间：
2015
影响因子：
2.8
通讯作者：
Yoneda M
中科院分区：
文献类型：
--
作者：
Tsutaya T;Shimomi A;Nagaoka T;Sawada J;Hirata K;Yoneda M
由于母乳中含有丰富的免疫因子和营养物质，较长的母乳喂养时间对亚成人健康有各种积极影响，并通过哺乳期闭经降低人群的自然生育能力。在这项研究中，我们测量了来自日本早期中世纪首都镰仓的Yuigahama - minami遗址（12至14世纪）的3名成人和45名亚成人骨胶原中的稳定碳和氮同位素比率。海洋食物、含C3的陆生食物和淡水鱼是成人蛋白质的主要来源。亚成虫氮同位素比值的变化表明，母乳对饲料蛋白质的相对贡献从1.1岁开始下降，到3.8岁结束。Yuigahama - minami人口断奶结束时的年龄大于典型的非工业人口、日本江户时代的前现代人口和英国中世纪人口。中世纪镰仓镇居民的骨骼显示出严重的营养压力（例如，牙釉质发育不全和眶膜发育不良），然而更长时间的母乳喂养并不能弥补营养缺乏的不利影响。母乳喂养期较长可能是辅食短缺和亚成人健康状况不佳的结果。镰仓在中世纪早期经历了城市化和人口增长。Yuigahama - minami人口较年轻的死亡年龄分布和较高的营养压力，以及较晚的断奶时间，与母亲较长的生育间隔密切相关，这表明镰仓在城市化过程中通过移民发展和增加人口。[J] .中国生物医学工程学报，2016,36(2):481 - 481。©2014 Wiley期刊公司
A longer breastfeeding duration provides various positive effects in subadult health because of abundant immunological factors and nutrients in human breast milk, and decreases the natural fertility of a population through lactational amenorrhea. In this study, we measured stable carbon and nitrogen isotope ratios in the bone collagen of three adults and 45 subadults from the Yuigahama‐minami site (from 12th to 14th century) in Kamakura, the early medieval capital of Japan. Marine foods, C3‐based terrestrial foods, and freshwater fish are the primarily protein sources for adults. The changes in the nitrogen isotope ratios of subadults suggest that the relative dietary protein contribution from breast milk started to decrease from 1.1 years of age and ended at 3.8 years. The age at the end of weaning in the Yuigahama‐minami population was greater than that in the typical non‐industrial populations, a premodern population in the Edo period Japan, and medieval populations in the UK. Skeletons of townspeople from medieval Kamakura indicate severe nutritional stress (e.g., enamel hypoplasia and cribra orbitalia), yet this longer duration of breastfeeding did not compensate adverse effects for nutritional deficiency. The longer breastfeeding period may have been a consequence of complementary food shortage and bad health of subadults. Kamakura experienced urbanization and population increase in the early medieval period. The younger age‐at‐death distribution and high nutritional stresses in the Yuigahama‐minami population and later weaning, which is closely associated with longer inter‐birth interval for mothers, suggests that Kamakura developed and increased its population by immigration during urbanization. Am J Phys Anthropol 156:241–251, 2015. © 2014 Wiley Periodicals, Inc.