Link Between Birth Weight and Stem Cells in Umbilical Cord Blood
Author Information
Author(s): Strohsnitter W C, Savarese T M, Low H P, Chelmow D P, Lagiou P, Lambe M, Edmiston K, Liu Q, Baik I, Noller K L, Adami H-O, Trichopoulos D, Hsieh C-C
Primary Institution: Tufts-New England Medical Center
Hypothesis
Is there a positive association between umbilical cord blood stem cell levels and birth weight?
Conclusion
Higher birth weights are associated with increased levels of certain stem cells in umbilical cord blood, supporting the idea that prenatal factors may influence cancer risk.
Supporting Evidence
- The study found a positive correlation between birth weight and CD34+CD38− stem cells.
- Each 500g increase in birth weight was associated with a 15.5% increase in stem cell concentration.
- Newborns with birth weights below 3000g had higher stem cell concentrations than those in the 3000-3499g range.
Takeaway
Babies who weigh more at birth tend to have more stem cells in their umbilical cord blood, which might affect their risk of getting cancer later.
Methodology
The study analyzed umbilical cord blood samples from singleton infants to measure stem cell populations and their association with birth weight.
Potential Biases
Potential biases may arise from the selection of study participants and the variability in maternal and neonatal characteristics.
Limitations
The study may not account for all potential confounding factors influencing stem cell levels and birth weight.
Participant Demographics
Participants included singleton infants from diverse ethnic backgrounds, with varying birth weights and maternal ages.
Statistical Information
P-Value
p<0.05
Confidence Interval
95% CI: 1.6–31.3%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website