Abstract
One of the primary obstacles in treating central nervous system (CNS) disorders lies in the limited ability of disease-modifying drugs to cross the blood-brain barrier (BBB). Our previously described Minimally Invasive Nasal Depot (MIND) technique has proven successful in delivering various drugs to the brain in rat models via a trans-olfactory mucosal approach. In this study, we introduce a novel Minimally Invasive Nasal Infusion (MINI) delivery approach for administering ovalbumin, a model protein, utilizing a programmable infusion pump (iPRECIO SMP-310R) in a mouse model. This research highlights the significant role of olfactory mucosa in nose-to-brain delivery, with an efficacy of nearly 45% compared to intracerebroventricular (ICV) administration. This demonstrates its potential as an alternative procedure for treating CNS diseases, offering a greater safety profile relative to the highly invasive clinical routes traditionally adopted for CNS drug delivery.
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