Changes of Peptide with Tyrosine and Ghrelin Levels in Preterm Infants and Their Relationships with Body Weight / 实用儿科临床杂志

ABSTRACT

Objective To study the role of peptide with tyrosine(PYY) and ghrelin in infants by comparing the difference and correlation of PYY,ghrelin levels and body weight in preterm infants and full-term infants.Methods Radio-immunity was used to determine serum PYY and ghrelin levels in 20 preterm infants in their first,3rd and 7th days,and also in 20 full-term infants at the 7th day.Body weight were recorded in the both groups.Then the levels of 2 hormone were analyzed the correlations with the body weight.Results Serum PYY and ghrelin levels increased remarkably in preterm infants as compared with those in full-term infants[full-term infantsPYY was(601.9?206.2) ng?L-1;ghrelin was(1 064.5?208.6) ng?L-1;preterm infantsPYY was(812.4?153.8) ng?L-1;ghrelin was(1 485.4?409.2) ng?L-1,Pa