Deformable nanovesicles (DNVs) have been widely used in oral mucosal delivery studies of biomolecular drugs. However, their development for oral mucosal preparations has been limited by their physical and chemical instability, the need for small oral volumes, and the complexity of the oral microenvironment. This study aimed to develop a more suitable buccal delivery system for DNVs with improved storage stability. Preliminary stability studies investigated different gel types, the effects of different hydrophilic gel matrices, and matrix temperature sensitivity using DNVs loaded with insulin-phospholipid complex (IPC-DNVs). A temperature-sensitive gel encapsulating IPC-DNVs (IPC-DNV-TSG) prepared with 2% gelatin was stable at 4 °C for three months and maintained an excellent hypoglycemic effect. The delivery efficiency of IPC-DNVs and IPC-DNV-TSG was compared using a TR146 cell model, revealing that cell viability remained high. Cellular uptake was slightly lower for IPC-DNV-TSG than for IPC-DNVs, but total transport did not differ significantly between the two groups, which may have been related to the viscosity of IPC-DNV-TSG and the hydrophilicity, cell adhesion properties, and biocompatibility of gelatin. Moreover, neither IPC-DNVs nor IPC-DNV-TSG induced significant mucosal irritation in rabbit tongue tissue sections. The study findings demonstrate a promising method for possible use as oral mucosal delivery of peptide drugs.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9699007 | PMC |
| http://dx.doi.org/10.3390/pharmaceutics14112262 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Mucosal leishmaniasis is associated with the Leishmania RNA virus and inappropriate cutaneous leishmaniasis treatment.
PLoS One
January 2025
Departamento de Salud Pública, Facultad de Medicina, Universidad Nacional de Colombia, Bogotá, Colombia.
Background: Mucosal leishmaniasis (ML) is a severe clinical form of leishmaniasis that is characterized by the destruction of the nasal and/or the oral mucosae and appears as a late complication in 5% to 10% of cutaneous leishmaniasis (CL) cases produced by species belonging to Leishmania (Viannia) subgenus. Some strains of Leishmania spp. carry an RNA virus known as Leishmania RNA virus (LRV) that may contribute to the appearance of ML.
View Article and Find Full Text PDFEnhancing Diabetic Oral Wound Healing with miR-132 Delivered Through Tetrahedral DNA Nanostructures.
Small
January 2025
Department of Operative Dentistry and Endodontics, Shanghai Stomatological Hospital and School of Stomatology, Fudan University, Shanghai, 200001, China.
Oral mucosal injuries are commonly caused by factors such as trauma, infection, or inflammation, especially in diabetic patients where healing is difficult and significantly affects quality of life. In this study, a nanocarrier system based on DNA tetrahedrons (TDN) is developed, which serve as ideal vectors due to their excellent intracellular uptake and drug delivery capabilities. By efficiently delivering miR132 into cells, the proliferation and migration of human oral mucosal fibroblasts (HOMFs) and human umbilical vein endothelial cells (HUVECs) are regulated, along with the modulation of inflammation and antioxidant processes.
View Article and Find Full Text PDFEffects of Polysaccharide on Gut Microbiota, the Intestinal Mucosal Barrier, and Inflammation in Diabetic Mice.
Metabolites
January 2025
School of Food and Biological Engineering, Hefei University of Technology, No. 193, Tunxi Road, Hefei 230009, China.
Polysaccharides produced by the edible fungus can regulate blood sugar levels and may represent a suitable candidate for the treatment of diabetes and its complications. However, there is limited information available about the mechanism of how polysaccharide (CCP) might improve diabetic conditions. This study investigated its effects on the intestinal microbiota, intestinal mucosal barrier, and inflammation in mice with type 2 diabetes mellitus (T2DM) induced by streptozotocin, and its potential mechanisms.
View Article and Find Full Text PDFImpact of Collagenated and Non-Collagenated Deproteinized Bovine Bone Mineral on Schneiderian Membrane Integrity in Rabbits.
Dent J (Basel)
January 2025
Department of Oral Implantology, School of Dentistry, Osaka Dental University, 8-1 Kuzuhahanazonocho, Hirakata 573-1121, Osaka, Japan.
This investigation focused on the influence of collagen on the integrity of the Schneiderian membrane during maxillary sinus augmentation in a rabbit model. The aim of this study was to elucidate the relationship between membrane integrity and bone regeneration in augmented maxillary sinuses using collagenated and non-collagenated grafts, through detailed histological and histomorphometric analyses. In this forward-looking, randomized, split-mouth design, bilateral maxillary sinus augmentation was conducted on 12 rabbits.
View Article and Find Full Text PDFAssessment of Exercise-Induced Dehydration Status Based on Oral Mucosal Moisture in a Field Survey.
Dent J (Basel)
December 2024
Department of Sports Dentistry, School of Dentistry, Meikai University, Sakado 350-0283, Japan.
Conventional techniques for evaluating hydration status include the analysis of blood, urine, and body weight. Recently, advancements in dentistry have introduced capacitance sensor-based oral epithelial moisture meters as promising avenues for assessment. This study aimed to examine the correlation between oral mucosal moisture content, as determined using a capacitance sensor, and exercise-induced dehydration.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!