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Updated: Sep 18, 2025

Novel Methods for Intranasal Administration Under Inhalation Anesthesia to Evaluate Nose-to-Brain Drug Delivery
Published on: November 14, 2018
Intranasal Drug Delivery Technology in the Treatment of Central Nervous System Diseases: Challenges, Advances, and
Xunxun Wu1, Ranqing Zang1, Yiting Qiu1
1School of Medicine, Huaqiao University, Quanzhou 362021, China.
Abstract:
As population aging becomes an increasingly critical global issue, the incidence of central nervous system (CNS) diseases, including Alzheimer's disease (AD), Parkinson's disease (PD), and stroke, has risen sharply. However, the blood-brain barrier (BBB) presents a significant obstacle to the effective treatment of these CNS disorders, limiting the ability of therapeutic agents to reach the brain. In this context, intranasal drug delivery, which bypasses the BBB, has attracted considerable attention in recent years. By utilizing pathways such as the olfactory and trigeminal nerves, intranasal drug delivery facilitates the rapid transport of drugs to the brain, thereby enhancing both the bioavailability and targeting efficiency of the drugs. This review provides an overview of the molecular mechanisms underlying intranasal drug delivery, its advancements in the treatment of CNS diseases, strategies to improve delivery efficiency, and a discussion of the challenges and potential future directions in this field. The aim of this paper is to offer valuable insights and guidance for researchers and clinicians working in the area of CNS disease treatment.
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