Comparison of Umbilical Cord and Maternal Serum Levels of IGF-1, Leptin and Cortisol in Appropriate for Gestational Age and Small for Gestational Age Neonates
Message:
Abstract:
IGF-1), leptin, and cortisol concentrations in maternal and umbilical cord vein and to investi-gate the relationship between these values and fetal growth in appropriate for gestational age (AGA) and small for gestational age (SGA) neo-nates.
Materials And Methods
In a case-control study, maternal and umbilical cord venous samples were collected from 25 SGA neonates and 25 AGA neonates in the obstetric ward at Hafez Hospital, Shiraz, Iran, between 2004 and 2005. Serum levels of IGF-1, leptin, and cortisol were measured by specific radioimmunoassay using commercial kits.
Results
Mean maternal age was 25.38±5.22 years (range 17-38 yr) and mean gestational age was 37.92±1.79 weeks (range 34-41 weeks). Mean con-centration of leptin and IGF-1 in cord blood was lower in SGA as compared with AGA neonates (p<0.012 and p<0.001, respectively). Maternal se-rum concentration of IGF-1 and cortisol were lower in SGA neonates (p<0.032 and p<0.011, re-spectively), however there was no significant difference in the concentration of maternal leptin levels between the two groups. A correla-tion was observed between the head circumfer-ence of neonate and maternal cortisol levels in the SGA group (p<0.01).
Conclusion
Low IGF-1 and leptin concentra-tions in cord blood and low maternal serum con-centration of IGF-1 and cortisol are associated with growth retardation in SGA as compared to AGA neonates. Also maternal cortisol level plays an important role in intrauterine brain de-velopment of SGA neonates.
Language:
English
Published:
International Journal of Endocrinology and Metabolism, Volume:6 Issue: 2, jun 2008
Page:
89
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