Intranasal delivery provides a direct and non-invasive method for drugs to reach the central nervous system. Nanoparticles play a crucial role as carriers in augmenting the efficacy of brain delivery. However, the interaction between nanoparticles and the nose-to-brain pathway and how the various biopharmaceutical factors affect brain delivery efficacy remains unclear. In this review, we comprehensively summarized the anatomical and physiological characteristics of the nose-to-brain pathway and the obstacles that hinder brain delivery. We then outlined the interaction between nanoparticles and this pathway and reviewed the biomedical applications of various nanoparticulate drug delivery systems for nose-to-brain drug delivery. This review aims at inspiring innovative approaches for enhancing the effectiveness of nose-to-brain drug delivery in the treatment of different brain disorders.
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http://dx.doi.org/10.1016/j.addr.2024.115196 | DOI Listing |
BMJ Open
December 2024
Eyu-Ethiopia: Eye Health Research, Training & Service Centre, Bahir Dar, Ethiopia
Introduction: The WHO neglected tropical diseases (NTD) roadmap (2021-2030) proposed a shift in approach to addressing NTDs through accountability for impact, implementing integration across NTDs, mainstreaming in national health systems and ensuring country ownership. However, a major challenge has been the dearth of evidence on how to implement this shift in a resource-limited setting. The objective of this scoping review is to understand the extent and type of evidence on the mainstreaming or integration of programmes and/or interventions against NTDs into the national health system.
View Article and Find Full Text PDFJ Control Release
December 2024
Jiangsu Key Laboratory of Neuropsychiatric Diseases Research, College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China; Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, Soochow University, Suzhou 215123, China. Electronic address:
Many brain-targeting drug delivery strategies have been reported to permeate the blood-brain barrier (BBB) via hijacking receptor-mediated transport. However, these receptor-based strategies could mediate whole-brain BBB crossing due to the wide intracranial expression of target receptors and lead to unwanted accumulation and side effects on healthy brain tissues. Inspired by brain metastatic processes and the selectivity of brain metastatic cancer cells for the inflammatory BBB, a biomimetic nanoparticle was developed by coating drug-loaded core with the inflammatory BBB-seeking erythrocyte-brain metastatic hybrid membrane, which can resist homotypic aggregation and specially bind and permeate the inflammatory BBB for specific drug delivery.
View Article and Find Full Text PDFCrit Rev Oncol Hematol
December 2024
Department of Cell and Molecular Sciences, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran; Faculty of Science, University of Amsterdam, Amsterdam, the Netherlands.
Pancreatic cancer, especially pancreatic ductal adenocarcinoma (PDAC), is one of the most challenging clinical conditions due to its late-stage diagnosis and poor survival rates. Mesenchymal stem cells (MSCs), used for targeted therapies, are being explored as a promising treatment because of their tumor-homing properties and potential contributions to the pancreatic cancer microenvironment. Understanding these interactions is crucial for developing effective treatments.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, Istanbul 34396, Turkiye; Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Taoyuan 320315, Taiwan. Electronic address:
Recently, cancer therapy has witnessed remarkable advancements with a growing focus on precision medicine and targeted drug delivery strategies. The application of anionic polysaccharides has gained traction in various drug delivery systems. Anionic polysaccharides have emerged as promising delivery carriers in cancer therapy and theranostics, offering numerous advantages such as biocompatibility, low toxicity, and the ability to encapsulate and deliver therapeutic agents to tumor sites with high specificity.
View Article and Find Full Text PDFInt J Pharm
December 2024
Department of Pharmaceutical Engineering, Azrieli College of Engineering Jerusalem, Jerusalem 9103501, Israel. Electronic address:
Chlorhexidine (CHX) is a gold standard therapeutic agent against clinical oral pathogens. However, its oral use is limited due to unpleasant taste, alteration in taste buds, staining of teeth and mucous membranes. Therefore, CHX-loaded PLGA microneedles (MNs) were fabricated for local and controlled release in the oral cavity, using a casting mold method.
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