Cited by 734Advanced Drug Delivery SystemsNanoparticle-Based Drug DeliveryInhalation and Respiratory Drug Delivery

Nanoparticles for direct nose-to-brain delivery of drugs

Mistry, Alpesh, Stolnik, Snjezana, Illum, Lisbeth·2009·International Journal of Pharmaceutics

Abstract

This review aims to evaluate the evidence for the existence of a direct nose-to-brain delivery route for nanoparticles administered to the nasal cavity and transported via the olfactory epithelium and/or via the trigeminal nerves directly to the CNS. This is relevant in the field of drug delivery as well as for new developments in nanotechnology. Experiments in animal models have shown that nano-sized drug delivery systems can enhance nose-to-brain delivery of drugs compared to equivalent drug solutions formulations. Protection of the drug from degradation and/or efflux back into the nasal cavity may partly be the reason for this effect of nanoparticles. It is uncertain, however, whether drug from the nanoparticles is being released in the nasal cavity or the nanoparticles carrying the drug are transported via the olfactory system or the trigeminal nerves into the CNS where the drug is released. Furthermore, toxicity of nanoparticulate drug delivery systems in the nasal cavity and/or in the CNS has not been extensively studied and needs to be considered carefully.

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Registry

Crossref · 10.1016/j.ijpharm.2009.06.019

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96 of 96 references verified0 citation errors · 0 not checkable

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  • Through the nasal route, a drug can access the brain directly along the trigeminal and olfactory nerves located in the upper part of the nasal cavity.

    “Through the nasal route, the drug can access the brain directly along the trigeminal and olfactory nerves, which are located in the upper part of the nasal cavity.”

    From Nanoemulsions for “Nose-to-Brain” Drug Delivery (2019) · cites this paper as [9]

  • Olfactory and trigeminal pathways are the only routes by which the brain is connected to the outside environment.

    “Olfactory and trigeminal pathways are the only routes by which the brain is connected to the outside environment [8,9].”

    From Nanoemulsions for “Nose-to-Brain” Drug Delivery (2019) · cites this paper as [9]

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Authors
Mistry, A., Stolnik, S., & Illum, L.
Affiliations
University of Nottingham (GB)
Corresponding author
Illum, Lisbeth
Venue
International Journal of Pharmaceutics
Publisher
Elsevier BV
Published
2009-09
Volume
379
Issue
1
Pages
146-157
ISSN
0378-5173 (ISSN-L)
OpenAlex
W2113945122
Cited by
734
References
96
Citations by year
2026: 28 · 2025: 42 · 2024: 48 · 2023: 63 · 2022: 64 · 2021: 63 · 2020: 73 · 2019: 55 · 2018: 47 · 2017: 36 · 2016: 40 · 2015: 41 · 2014: 30 · 2013: 37 · 2012: 23
FWCI
2.27
Type
journal article
Language
en
Open access
closed
Locations
  • International Journal of Pharmaceutics (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advanced Drug Delivery Systems
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Inhalation and Respiratory Drug Delivery
Keywords
nose-to-brain delivery, nanoparticles, intranasal drug delivery, olfactory epithelium, trigeminal nerve, brain drug delivery, nanoparticle toxicity, drug degradation, nanocarriers
MeSH terms
Administration, Intranasal, Animals, Biological Transport, Blood-Brain Barrier, Brain, Pharmaceutical Preparations, Humans, Drug Delivery Systems, Nanotechnology, Nanoparticles, Drug-Related Side Effects and Adverse Reactions

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