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目的研究陕西农村母乳喂养婴幼儿的肠道定植抗力状况。方法采取随机抽样的方法对55名0~18个月健康婴幼儿进行粪便双歧杆菌及肠杆菌的定量检测,计算肠道双歧杆菌与肠杆菌数量的比值。菌群检测采用细菌培养法。结果婴幼儿肠道平均双歧杆菌与肠杆菌数量的比值大于1,在10个月前基本保持平稳,在10个月~组最高接近于2,13个月后下降,但仍高于10个月前,各年龄组间肠道双歧杆菌与肠杆菌数量的比值经方差分析无显著性差异。有36.36%婴幼儿的肠道双歧杆菌与肠杆菌数量的比值小于1。结论部分婴幼儿需要调节肠道菌群,提高其肠道菌群定植抗力,以促进婴幼儿的健康成长。
Objective To study the intestinal resistance of breastfeeding infants and young children in rural Shaanxi. Methods Quantitative detection of Bifidobacterium faecalis and Enterobacteriaceae in 55 healthy children and adolescents aged 0-18 months were performed by random sampling method, and the ratio of intestinal Bifidobacteria to Enterobacteriaceae was calculated. Bacterial test using bacterial culture method. Results The average number of intestinal bifidobacteria and Enterobacteriaceae in infants and young children was more than 1, and remained stable basically 10 months ago. However, it decreased after 10 months and reached the maximum of 2 and 13 months, but still higher than 10 Months ago, there was no significant difference in the ratio of intestinal bifidobacteria to enterobacteria in each age group by analysis of variance. 36.36% of infants with intestinal Bifidobacteria and Enterobacteriaceae ratio of less than 1. Conclusion Some infants and young children need to regulate the gut flora and improve their intestinal flora colonization resistance to promote the healthy growth of infants.