Preterm newborns are at risk for metabolic abnormalities due to immature cellular pathways, oxidative stress, and extrauterine adaptation. Lactate, historically considered a metabolic byproduct, plays a crucial role in energy metabolism, mitochondrial function, and neuroprotection. Ibrahim et al. proposes the use of sodium L-lactate (NaL) as an alternative to sodium chloride-based fluids in preterm newborns. Evidence suggests that lactate metabolism influences transcription factors, mitochondrial biogenesis, and neuronal energy utilization. However, questions remain regarding its safety, dosing, and long-term effects, particularly in neonates with brain asphyxia. Further studies are needed to evaluate NaL’s potential benefits in neonatal care.
AbstractSection Impact-
L-lactate is important for energy production, especially in the brain.
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Ibrahim et al. propose the use of sodium L-lactate as an alternative maintenance fluid in preterm newborns.
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L-lactate cannot be considered only as a simple fluid replenishment.
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L-lactate via its metabolism influences transcription factors, mitochondrial biogenesis, and neuronal energy utilization.
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Further studies are needed to evaluate sodium L-lactate potential benefits and possible side effects in newborns.
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Acknowledgements
We would like to acknowledge the Crystal Charity Ball and the NeuroNICU program at the University of Texas Southwestern Medical Center for supporting this project.
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D.A. wrote the first draft of the manuscript. D.A., L.P.B. and L.C. critically revised the manuscript and approved the final manuscript for submission.
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Angelis, D., Brion, L. & Chalak, L. L-lactate provision in preterm newborns: friend or foe?. Pediatr Res 98, 376–378 (2025). https://doi.org/10.1038/s41390-025-04104-y
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DOI: https://doi.org/10.1038/s41390-025-04104-y