Abstract
Germinal matrix hemorrhage (GMH) is the most common and devastating neurological problem of premature infants. Current treatment is largely ineffective and GMH has been nonpreventable. Osteopontin (OPN) is an endogenous protein that has been shown to be neuroprotective, however, it has not been tested in GMH. P7 neonatal rats were subjected to stereotactic ganglionic eminence collagenase infusion. Groups were as follows: (1) sham, (2) GMH + vehicle, (3) GMH + intranasal OPN. Seventy-two hours later, the animals were evaluated using righting reflex, blood-brain barrier (BBB) permeability by Evans blue dye leakage, brain water content, and hemoglobin assay. Intranasal OPN improved outcomes after GMH by attenuation of brain swelling, BBB function, re-bleeding, and neurological outcomes. OPN may play an important role in enhancing neuroprotective brain signaling following GMH. These observed effects may offer novel possibilities for therapy in this patient population.
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Acknowledgment
This study was partially supported by the National Institutes of Health grant RO1 NS078755 (Dr. Zhang) and American Heart Association CRP 17380009 (Dr. Lekic).
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Malaguit, J. et al. (2016). Intranasal Osteopontin for Rodent Germinal Matrix Hemorrhage. In: Applegate, R., Chen, G., Feng, H., Zhang, J. (eds) Brain Edema XVI. Acta Neurochirurgica Supplement, vol 121. Springer, Cham. https://doi.org/10.1007/978-3-319-18497-5_39
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DOI: https://doi.org/10.1007/978-3-319-18497-5_39
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