The gastrointestinal microbiome is believed to be critically important for infant growth and development. As we all know, the gut microbiota can influence gut maturation, metabolic, immune and brain development in early life. Host genotype, gestational age, antibiotic use, mode of delivery, diet and the context in which the infant is born (rural vs urban, presence of siblings, pets and other factors) can influence the development of infant gut microbiota. In the early life stage, intestinal flora disorders may alter the host immune function and increase the susceptibility to immune or metabolic diseases.~This research intends to establish a birth cohort of healthy newborns. The influence factors of gastrointestinal microbiome will be investigated by means of questionnaire survey, specimen collection and high throughput sequencing analysis. What's more, the correlation of gut microbiome, infant growth as well as related diseases will be explored either. The results will provide constructive suggestions for the establishment of infant normal intestinal flora and play an indispensable role in exploring the occurrence, development and prevention of related diseases.
The purpose of this study is to investigate the influence factors of gastrointestinal microbiome in infants.