Servicio de Pediatria, Hospital de Cabueñes, SESPA, Gijón, Asturias, Spain.
Anaerobe. 2010 Jun;16(3):307-10. doi: 10.1016/j.anaerobe.2010.02.004. Epub 2010 Feb 20.
The initial establishment of lactic acid bacteria (LAB) and bifidobacteria in the newborn and the role of breast-milk as a source of these microorganisms are not yet well understood. The establishment of these microorganisms during the first 3 months of life in 20 vaginally delivered breast-fed full-term infants, and the presence of viable Bifidobacterium in the corresponding breast-milk samples was evaluated. In 1 day-old newborns Enterococcus and Streptococcus were the microorganisms most frequently isolated, from 10 days of age until 3 months bifidobacteria become the predominant group. In breast-milk, Streptococcus was the genus most frequently isolated and Lactobacillus and Bifidobacterium were also obtained. Breast-milk contains viable lactobacilli and bifidobacteria that might contribute to the initial establishment of the microbiota in the newborn.
新生儿肠道内乳酸菌和双歧杆菌的初始定植以及母乳作为这些微生物来源的作用尚不完全清楚。本研究旨在评估 20 例足月顺产母乳喂养儿生后前 3 个月肠道内这些微生物的定植情况。在 1 日龄新生儿中，最常分离到的微生物是肠球菌和链球菌，10 日龄至 3 月龄双歧杆菌成为主要定植菌。母乳中最常分离到的菌属是链球菌，同时也分离到了乳酸杆菌和双歧杆菌。母乳中存在有活力的乳酸杆菌和双歧杆菌，可能有助于新生儿肠道内初始微生物群的建立。
