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[Effect of intrauterine growth retardation on insulin sensitivity and plasma adiponectin level in neonates]
Qun Wang1, Xu-Dong Wang, Xin Liu
1Department of Neonatology, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430016, China. freeman315@163.com.
Insights
Intrauterine growth retardation (IUGR) in neonates is linked to reduced insulin sensitivity and lower adiponectin levels. These findings suggest a potential connection between adiponectin and insulin resistance in newborns with IUGR.
Area of Science:
- Neonatal Endocrinology
- Metabolic Disorders
- Perinatal Medicine
Background:
- Intrauterine growth retardation (IUGR) is a significant concern in neonatology.
- Insulin sensitivity plays a crucial role in neonatal metabolic health.
- Adiponectin, a key adipokine, influences glucose and lipid metabolism.
Purpose of the Study:
- To investigate the impact of IUGR on neonatal insulin sensitivity.
- To examine the relationship between insulin sensitivity and plasma adiponectin levels in neonates.
Main Methods:
- Comparison of term neonates with IUGR (n=82) and appropriate for gestational age (AGA) neonates (n=90).
- Measurement of anthropometric data, glucose, lipids, insulin, and adiponectin levels on day 7 postpartum.
- Calculation of Homeostasis Model Assessment for Insulin Resistance (HOMA-IR) and Insulin Sensitivity Index (ISI).
Main Results:
- No significant differences in glucose or lipid profiles between IUGR and AGA groups.
- IUGR neonates exhibited higher plasma insulin and lower plasma adiponectin levels (P<0.05).
- IUGR group showed increased HOMA-IR and decreased ISI (P<0.05), with HOMA-IR negatively correlated with adiponectin and birth weight.
Conclusions:
- Neonates with IUGR demonstrate impaired insulin sensitivity and elevated insulin levels.
- Reduced plasma adiponectin levels in IUGR neonates may be associated with their decreased insulin sensitivity.
Objective:
To explore the effect of intrauterine growth retardation (IUGR) on insulin sensitivity in neonates and the relationship between insulin sensitivity and plasma adiponectin level.
Methods:
Eighty-two term neonates with IUGR and 90 term neonates born appropriate for gestational age (AGA) were enrolled. Weight, height, head circumference and abdomen circumference of the neonates were measured within 24 hours after birth. Fasting serum glucose (FG), triglyceride (TG), high-density lipoprotein (HDL), low-density lipoprotein (LDL), plasma insulin and adiponectin were detected in two groups on the 7th day after birth. Homeostasis model assessment for insulin resistance (HOMA-IR) index and insulin sensitivity index (ISI) were calculated.
Results:
There were no significant differences in the levels of FG, TG, HDL and LDL between the IUGR and AGA groups (P>0.05). The plasma insulin level in the IUGR group was higher than that in the AGA group, but the plasma adiponectin level was lower than that in the AGA group (P<0.05). HOMA-IR index in the IUGR group was higher than that in the AGA group, but ISI was lower than that in the AGA group (P<0.05). Both Pearson correlation analysis and multiple linear regression analysis showed HOMA-IR index was negatively correlated with plasma adiponectin level and birth weight (P<0.05).
Conclusions:
The neonates with IUGR display a higher plasma insulin level and decreased insulin sensitivity. The decreased plasma adiponectin level may be associated with the decreased insulin sensitivity.
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