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Melatonin as a Therapy for Preterm Brain Injury: What Is the Evidence?
Silke Häusler1, Nicola J Robertson2,3, Klervi Golhen4
1Division of Neonatology, Department of Pediatrics, Paracelsus Medical University Salzburg, 5020 Salzburg, Austria.
Insights
Melatonin shows promise as a neuroprotective treatment for preterm infants, potentially reducing brain injury and improving long-term outcomes. Further research is needed to confirm its effectiveness and optimal use in neonatology.
Area of Science:
- Neonatology
- Neuroscience
- Developmental Pediatrics
Background:
- Preterm birth survival has improved, but neurodevelopmental deficits persist.
- Encephalopathy of prematurity (EoP) presents significant cognitive and behavioral challenges.
- Urgent need for neuroprotective strategies in preterm infants.
Purpose of the Study:
- Review pathomechanisms of preterm brain injury.
- Correlate these mechanisms with melatonin's neuroprotective potential.
- Highlight areas for future research on melatonin for EoP.
Main Methods:
- Literature review of studies on preterm brain injury.
- Analysis of melatonin's anti-inflammatory and antioxidant effects.
- Evaluation of melatonin's neurotrophic properties and safety profile.
Main Results:
- Melatonin may mitigate inflammatory and oxidative stress, key triggers of EoP.
- Preliminary data suggests a direct neurotrophic effect of melatonin.
- Melatonin demonstrates a favorable safety profile in preterm infants.
Conclusions:
- Melatonin is a potential therapeutic agent for preventing preterm brain injury.
- Further pharmacokinetic/pharmacodynamic studies are crucial for clinical application.
- Addressing uncertainties will optimize melatonin's use in neonatology.
Abstract:
Despite significant improvements in survival following preterm birth in recent years, the neurodevelopmental burden of prematurity, with its long-term cognitive and behavioral consequences, remains a significant challenge in neonatology. Neuroprotective treatment options to improve neurodevelopmental outcomes in preterm infants are therefore urgently needed. Alleviating inflammatory and oxidative stress (OS), melatonin might modify important triggers of preterm brain injury, a complex combination of destructive and developmental abnormalities termed encephalopathy of prematurity (EoP). Preliminary data also suggests that melatonin has a direct neurotrophic impact, emphasizing its therapeutic potential with a favorable safety profile in the preterm setting. The current review outlines the most important pathomechanisms underlying preterm brain injury and correlates them with melatonin's neuroprotective potential, while underlining significant pharmacokinetic/pharmacodynamic uncertainties that need to be addressed in future studies.
