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Maternal serum levels of type I and type III procollagen peptides in pre-eclamptic pregnancy
H Yamamoto1, G M Lambert-Messerlian, H M Silver
1Department of Obstetrics and Gynecology, Sapporo Medical University, School of Medicine, Japan.
Insights
Maternal serum levels of procollagen I carboxy-terminal peptide (PICP) and procollagen III amino-terminal peptide (PIIINP) were elevated in pre-eclampsia patients. However, these collagen markers are unlikely to predict pre-eclampsia.
Area of Science:
- Obstetrics and Gynecology
- Biochemistry
- Maternal-Fetal Medicine
Background:
- Pre-eclampsia is a serious pregnancy complication.
- Collagen synthesis markers may be altered in pre-eclampsia.
Purpose of the Study:
- To compare maternal serum levels of PICP and PIIINP in pre-eclampsia patients versus controls.
- To assess the predictive value of these markers for pre-eclampsia.
Main Methods:
- Radioimmunoassay was used to measure PICP and PIIINP in maternal serum.
- Study included patients with pre-eclampsia (n=37 for PICP, n=12 for PIIINP) and controls (n=36 for PICP, n=19 for PIIINP) at ≥32 weeks' gestation.
Main Results:
- Both PICP and PIIINP levels were significantly higher in pre-eclampsia patients compared to controls.
- PICP levels were 20% higher and PIIINP levels were 80% higher on average in cases.
Conclusions:
- Maternal serum PICP and PIIINP levels are mildly elevated in pre-eclampsia.
- These markers are not considered useful for predicting pre-eclampsia.
Objective:
To compare maternal serum levels of two markers of collagen synthesis, procollagen I carboxy-terminal peptide (PICP) and procollagen III amino-terminal peptide (PIIINP), in patients with pre-eclampsia and in controls.
Methods:
PICP and PIIINP were measured by radioimmunoassay in maternal serum samples from patients diagnosed with pre-eclampsia at 32 weeks' gestation or later and in controls from the same period of gestation. For PICP, 37 cases and 36 controls were studied; for PIIINP, 12 cases and 19 controls were studied.
Results:
Both PICP and PIIINP levels were significantly elevated in patients with pre-eclampsia. PICP and PIIINP levels were, on average, 20% and 80% higher than in controls, respectively.
Conclusions:
These results are in agreement with previous findings that maternal serum levels of PICP and PIIINP are mildly elevated in patients with pre-eclampsia. These markers are unlikely to be useful in the prediction of pre-eclampsia.
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