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Insulin-like growth factor binding protein 1 level in amniotic fluid: correlation with birth weight
B Chevallier1, A Lagarde, H Degrelle
1Services de Pédiatrie, Hôpital Ambroise-Paré, Boulogne, France.
Biology of the Neonate
|June 9, 1998
Summary
Midpregnancy amniotic fluid levels of insulin-like growth factor binding protein 1 (IGFBP-1) are a strong indicator of fetal growth. Lower IGFBP-1 levels in amniotic fluid may signal fetal growth restriction.
Area of Science:
- Reproductive Biology
- Endocrinology
- Maternal-Fetal Medicine
Background:
- Insulin-like growth factor binding protein 1 (IGFBP-1) is abundant in amniotic fluid.
- IGFBP-1 is produced by decidual and fetal tissues.
- It is believed to be crucial for regulating fetal growth.
Purpose of the Study:
- To investigate the relationship between amniotic fluid IGFBP-1 levels and fetal growth.
- To determine if IGFBP-1 is a potential marker for fetal growth abnormalities.
Main Methods:
- Quantification of IGFBP-1 in 58 amniotic fluid samples.
- Samples collected between 13 and 19 gestational weeks.
- Correlation analysis with birth weight.
Main Results:
- A statistically significant negative correlation was observed between midpregnancy amniotic fluid IGFBP-1 levels and fetal weight at birth.
- This suggests that lower IGFBP-1 concentrations are associated with reduced fetal growth.
Conclusions:
- Amniotic fluid IGFBP-1 levels measured in midpregnancy serve as a reliable marker for identifying fetal growth failure.
- This finding has implications for early detection and management of intrauterine growth restriction.