Abstract
Background
Necrotizing enterocolitis (NEC) and neonatal sepsis are still considered major problems, especially in formula-fed preterm neonates. This study aimed to investigate the effect of bovine colostrum on T regulatory cells, NEC, and late-onset sepsis in preterm neonates ≤34 weeks.
Methods
This prospective double-blind randomized controlled trial was conducted on 80 preterm infants who were randomly assigned to either the bovine colostrum group (n = 32) or control group (n = 48). T lymphocytes and their subsets, necrotizing enterocolitis, late-onset sepsis (LOS) and its severity, feeding tolerance, growth, length of hospital stay, and mortality were documented.
Results
The bovine colostrum group showed higher follow-up levels of CD4+CD25+ FOXP3+ T lymphocyte % (FOXP3 Tregs). FOXP3 Tregs and its difference in change levels between baseline and follow-up were considered as the most related factors to the bovine colostrum. Bovine colostrum group showed positive trends for reduction of sepsis severity and mortality with no significant difference in the incidence of NEC, LOS, and length of hospital stay.
Conclusions
Preterm neonates who received bovine colostrum showed a higher FOXP3 Treg level.
Impact
-
Bovine colostrum has no significant effect on the incidence of necrotizing enterocolitis.
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FOXP3 T regulatory cells and their increased level between baseline and follow-up is considered as the most influencing factors related to the bovine colostrum.
-
Positive trends were noted for reduction of sepsis severity and concomitant mortality, but the study lacked the power to assess these outcomes.
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All authors contributed to data interpretation and manuscript writing and have read and approved the final submission. R.I.H.I. and H.A.A. conceptualized and designed the study. S.S.E. and G.I.G. supervised data collection, reviewed manuscript, and approved the final manuscript as submitted. N.M.A. and R.M.A. contributed to data collection and performed data analysis. D.S.E. contributed to the flow cytometric analysis. N.T.A., M.B.M., and M.M.Y. followed up the implementation of bovine colostrum intervention. N.M.B. drafted the initial manuscript and analyzed and interpreted the data.
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Informed consent was provided by parents or caregivers of each participant before enrollment.
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Ismail, R.I.H., Awad, H.A., Imam, S.S. et al. Gut priming with bovine colostrum and T regulatory cells in preterm neonates: a randomized controlled trial. Pediatr Res 90, 650–656 (2021). https://doi.org/10.1038/s41390-020-01344-y
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DOI: https://doi.org/10.1038/s41390-020-01344-y