Trial reportBMC pregnancy and childbirth2022
Umbilical cord blood concentration of connecting peptide (C-peptide) and pregnancy outcomes.
Trial report in BMC pregnancy and childbirth, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed, 9 citations in OpenAlex.
- Early-life proteomic and microbiome features signal obesity risk across 26 years of follow-up.mSystems · 2026Article
- Umbilical Cord Biomarkers of Nutritional and Metabolic Status in Neonates with Intrauterine Growth Restriction.Journal of clinical medicine · 2026Review
- Dynamic OGTT-derived C-peptide trajectories for metabolic heterogeneity and adverse pregnancy outcomes in gestational diabetes mellitus: a nested case‒control study.BMC medicine · 2025Article
- Prenatal Ultrasonographic Markers of Macrossomia and C-Peptide in Gestational Diabetes Mellitus: A Prospective Cohort Study.Diagnostics (Basel, Switzerland) · 2025Article
- Significance of Umbilical Cord Leptin Profile during Pregnancy in Gestational Diabetes Mellitus-A Systematic Review and Meta-Analysis.Journal of clinical medicine · 2023Review
- Associations between cord blood metabolic factors and early-childhood growth and overweight and obesity.Frontiers in endocrinology · 2023Article
Corrections and comments
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Authors and funding
10 authors at 7 institutions in 2 countries.
Funding
Abstract
backgroundC-peptide offers potential as a marker to indicate childhood metabolic outcomes. Measuring C-peptide concentration might have better future utility in the risk stratification of neonates born to overweight or diabetic mothers. Prior research has tried to bring this matter into the light; however, the clinical significance of these associations is still far from reach. Here we sought to investigate the associations between fetomaternal metabolic variables and umbilical cord blood C-peptide concentration.
methodsFor the present study, 858 pregnant women were randomly selected from among a sub-group of 35,430 Iranian pregnant women who participated in a randomized community non-inferiority trial of gestational diabetes mellitus (GDM) screening. Their umbilical cord (UC) blood C-peptide concentrations were measured, and the pregnancy variables of macrosomia/large for gestational age (LGA) and primary cesarean section (CS) delivery were assessed. The variation of C-peptide concentrations among GDM and macrosomia status was plotted. Due to the skewed distribution of C-peptide concentration in the sample, median regression analysis was used to identify potential factors related to UC C-peptide concentration.
resultsIn the univariate model, positive GDM status was associated with a 0.3 (95% CI: 0.06 - 0.54, p = 0.01) increase in the median coefficient of UC blood C-peptide concentration. Moreover, one unit (kg) increase in the birth weight was associated with a 0.25 (95% CI: 0.03 - 0.47, p = 0.03) increase in the median coefficient of UC blood C-peptide concentration. In the multivariate model, after adjusting for maternal age, maternal BMI, and macrosomia status, the positive status of GDM and macrosomia were significantly associated with an increase in the median coefficient of UC blood C-peptide concentration (Coef.= 0.27, 95% CI: 0.13 - 0.42, p < 0.001; and Coef.= 0.34, 95% CI: 0.06 - 0.63, p = 0.02, respectively).
conclusionUC blood concentration of C-peptide is significantly associated with the incidence of maternal GDM and neonatal macrosomia. Using stratification for maternal BMI and gestational weight gain (GWG) and investigating molecular markers like Leptin and IGF-1 in the future might lay the ground to better understand the link between metabolic disturbances of pregnancy and UC blood C-peptide concentration.
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