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Cyclodextrins (CDs) are oligosaccharides widely used in the pharmaceutical field. In this review, a detailed examination of the literature of the last two decades has been made to understand the role of CDs in nasal drug delivery systems. In nasal formulations, CDs are used as pharmaceutical excipients, as solubilizers and absorption promoters, and as active ingredients due to their several biological activities (antiviral, antiparasitic, anti-atherosclerotic, and neuroprotective). The use of CDs in nasal formulations allowed obtaining versatile drug delivery systems intended for local and systemic effects, as well as for nose-to-brain transport of drugs. In vitro and in vivo models currently employed are suitable to analyze the effects of CDs in nasal formulations. Therefore, CDs are versatile pharmaceutical materials, and due to the continual synthesis of new CDs derivatives, the research on the new nasal applications is an interesting field evolving in the coming years, to which Italian research will still contribute.
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http://dx.doi.org/10.3390/pharmaceutics13081180 | DOI Listing |
Polymers (Basel)
July 2025
School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea.
Introduction: Functional endoscopic sinus surgery is commonly performed to treat paranasal sinus diseases, often necessitating nasal packing to control bleeding and aid healing. However, current materials can cause discomfort or lack adequate antibacterial properties. This study aimed to develop a biodegradable, biocompatible nasal packing material by combining polyvinyl alcohol (PVA) and carbon dots (CDs), and to evaluate its antibacterial activity and tissue compatibility.
View Article and Find Full Text PDFJ Pain Symptom Manage
July 2025
Department of Pelvic Cancer, Genitourinary Oncology and Urology Unit (M.L.), Karolinska University Hospital, Stockholm, Sweden; Department of Oncology-Pathology (M.L.), Karolinska Institutet, Stockholm, Sweden; Department of Immunology, Genetics and Pathology (M.L.), Uppsala University, Uppsala, Swe
Context: Malignant central airway obstruction (MCAO) is a serious and often life-threatening condition.
Objectives: We aimed to investigate the effects of endoscopic interventions on dyspnea, Quality of life (qoL), and physiological measurements in patients with MCAO.
Methods: This was a single-center prospective cohort study.
Molecules
March 2025
Department of Chemistry, National and Kapodistrian University of Athens, Zografou, 15771 Athens, Greece.
Donepezil (DH), a selective acetylcholinesterase inhibitor, is widely used to manage symptoms of mild to moderate Alzheimer's disease by enhancing cholinergic neurotransmission and preventing acetylcholine breakdown. Despite the effectiveness of oral formulations, extensive hepatic metabolism and low systemic bioavailability have driven the search for alternative delivery systems. This study focuses on nasal delivery as a non-parenteral substitute, utilizing hydroxypropyl methylcellulose (HPMC) for its mucoadhesive properties and methyl-β-cyclodextrin (Me-β-CD) for its ability to enhance permeability and form inclusion complexes with drugs.
View Article and Find Full Text PDFCureus
December 2024
Department of Otolaryngology, Manipal Hospital, Gurugram, IND.
Aims And Objectives: The study aimed to compare the auditory perception status of children from different socioeconomic backgrounds, specifically urban versus rural. It also examined the correlation between outcome measures and the frequency of auditory verbal therapy sessions attended, as well as the impact of continuous electric analog stimulation on the age of implantation.
Material And Methods: A retrospective cohort study was carried out on 30 children who have received unilateral cochlear implantation in rural versus urban backgrounds.
Front Immunol
December 2024
Center of Scientific Experiment, Beijing University of Chinese Medicine, Beijing, China.
Background: Allergic rhinitis (AR) affects up to 40% of the population, leading to significant healthcare expenditures. Current mainstream treatments, while effective, can lead to side effects and do not address the underlying immunological imbalances. (ZRC), the partially charred product of (ZR), has been widely used clinically in China since ancient times to treat respiratory disorders.
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