Background: Very low birth weight infants are at risk of developing periventricular white matter lesions. We previously reported high blood adenosine levels in premature infants and infants with low birth weight. We asked whether blood adenosine levels could be related to the vulnerability of the maturing white matter to develop brain lesions. The present study aims at finding a biomarker for the early detection of white matter brain lesions, that can profoundly influence the neurodevelopmental outcome, whose pathophysiology is still unclear. Methods: Dried blood spots were prospectively collected for the newborn screening program and adenosine concentration measurements. Fifty-six newborns tested four times for blood adenosine concentration (at day 3, 15, 30 and 40 post-birth), were included. All infants underwent brain MRI at term equivalent age. Neurodevelopmental outcome was studied with Griffiths Mental Development Scales (GMDS) at 12±2 months corrected age. Results: Blood adenosine concentration increased over time from a median of 0.75 μM at Day 3 to 1.46 μM at Day 40. Adenosine blood concentration >1.58 μM at Day 15 was significantly associated with brain white matter lesions at MRI (OR [95%CI] of 50.0 [3.6-688.3], p-value < 0.001). A moderate negative correlation between adenosine at 15 days of life and GMDS at 12 ± 2 months corrected age was found. Conclusion: These findings suggest a potential role for blood adenosine concentration as a biomarker of white matter brain lesions in very low birth weight infants.

Adenosine Blood Level Can Predict White Matter Damage in Very Low Birth Weight Infants.

Morana, Giovanni;
2022

Abstract

Background: Very low birth weight infants are at risk of developing periventricular white matter lesions. We previously reported high blood adenosine levels in premature infants and infants with low birth weight. We asked whether blood adenosine levels could be related to the vulnerability of the maturing white matter to develop brain lesions. The present study aims at finding a biomarker for the early detection of white matter brain lesions, that can profoundly influence the neurodevelopmental outcome, whose pathophysiology is still unclear. Methods: Dried blood spots were prospectively collected for the newborn screening program and adenosine concentration measurements. Fifty-six newborns tested four times for blood adenosine concentration (at day 3, 15, 30 and 40 post-birth), were included. All infants underwent brain MRI at term equivalent age. Neurodevelopmental outcome was studied with Griffiths Mental Development Scales (GMDS) at 12±2 months corrected age. Results: Blood adenosine concentration increased over time from a median of 0.75 μM at Day 3 to 1.46 μM at Day 40. Adenosine blood concentration >1.58 μM at Day 15 was significantly associated with brain white matter lesions at MRI (OR [95%CI] of 50.0 [3.6-688.3], p-value < 0.001). A moderate negative correlation between adenosine at 15 days of life and GMDS at 12 ± 2 months corrected age was found. Conclusion: These findings suggest a potential role for blood adenosine concentration as a biomarker of white matter brain lesions in very low birth weight infants.
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Adenosine; biomarker; brain MRI; brain injury; periventricular white matter lesions; prematurity; very low weight at birth.
Colella, Marina; Panfoli, Isabella; Doglio, Matteo; Cassanello, Michela; Bruschi, Maurizio; Angelis, Laura C De; Candiano, Giovanni; Parodi, Alessandro; Malova, Mariya; Petretto, Andrea; Morana, Giovanni; Tortora, Domenico; Severino, Maria Savina; Maghnie, Mohamad; Buonocore, Giuseppe; Rossi, Andrea; Baud, Oliver; Ramenghi, Luca A
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1868158
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