Insulin-like growth factor 1 levels and their association with growth and development in infants aged 1-24 months.
- Author:
Xin-Li WANG
1
;
Mei-Ru GE
;
Wen-Yan WU
;
Juan ZHANG
Author Information
- Publication Type:Journal Article
- MeSH: Body Height; Body Weight; Child Development; Female; Humans; Infant; Infant, Newborn; Infant, Premature; Insulin-Like Growth Factor I; analysis; Male
- From: Chinese Journal of Contemporary Pediatrics 2010;12(6):459-461
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study serum insulin-like growth factor 1 (IGF-1) levels and their association with growth and development in infants aged 1-24 mouths.
METHODSA total of 525 healthy infants (125 preterm, 400 term) were enrolled. Serum IGF-1 levels were measured using ELISA 1.5, 4, 6, 8, 12, 18 and 24 months after birth. The body weight and body length were simultaneously measured.
RESULTSSerum IGF-1 levels were the lowest in preterm infants 1.5 months after birth (86+/-60 ng/mL). Thereafter, serum IGF-1 levels increased, and were significantly higher than those in term infants between 4 and 12 months after birth. Serum IGF-1 levels in term infants were the highest (116+/-52 ng/mL) 1.5 months after birth during their life of 12 months old. Thereafter, serum IGF-1 levels decreased and reached to a nadir (69+/-58 ng/mL) 8 months after birth. IGF-I levels were positively correlated with the weight and the height (SDS) in both preterm and term infants.
CONCLUSIONSSerum IGF-1 levels are closely associated with growth and development in infants.
