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Babakurd FM, Azzawi SK, Alkhouli M, Al-Nerabieah Z. Evaluation of EMLA cream with microneedle patches in palatal anesthesia in children: a randomized controlled clinical trial. Sci Rep 2024; 14:15295. [PMID: 38961171 PMCID: PMC11222482 DOI: 10.1038/s41598-024-66212-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 06/28/2024] [Indexed: 07/05/2024] Open
Abstract
Palatal injections are considered to be one of the most painful dental procedures. As a result, it was important to find alternatives to this painful injection to improve children's cooperation. The dental literature mentioned using EMLA cream as a possible alternative to conventional injections, but its anesthetic effect was debated. Therefore, it was valuable to research the impact of microneedle patches to enhance the effectiveness of this cream. The purpose of this randomized controlled clinical trial was to compare the effectiveness of different methods of anesthesia and pain levels in children aged 7-11 years. The study compared the use of EMLA cream, EMLA with microneedles, and conventional palatal injections. A total of 90 children were randomly assigned to three groups: Group 1 received conventional palatal anesthesia (control), Group 2 received EMLA cream only, and Group 3 received EMLA with microneedles. Pain levels were assessed using the FLACC and Wong-Baker scales at three different time points: T1(during anesthesia), T2(on palatal probing), and T3(during extraction). The FLACC scale revealed a significant difference in pain between groups only at T1 (P value = 0.000). It was found that the conventional palatal injection group had a higher pain level than the EMLA cream-only group and the group using microneedle patches with EMLA cream (P value = 0.000). However, the other groups did not show significant differences in pain levels during the anesthesia (P value = 1.00). Similarly, the Wong-Baker scale also demonstrated a statistically significant difference in pain between groups only at T1 (P value = 0.000). It was found that the conventional palatal injection group had a higher pain level than the EMLA cream-only group and the group using microneedle patches with EMLA cream (P value = 0.000). However, the other groups did not show significant differences in pain levels during the anesthesia (P value = 0.091). The study concludes that both EMLA cream alone and EMLA with microneedles can be used as an alternative to conventional palatal anesthesia for children.
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Affiliation(s)
- Farah M Babakurd
- Pediatric Dentistry Department, Faculty of Dentistry, University of Damascus, Damascus, Syria.
| | - Shadi K Azzawi
- Pediatric Dentistry Department, Faculty of Dentistry, University of Damascus, Damascus, Syria
| | - Muaaz Alkhouli
- Pediatric Dentistry Department, Faculty of Dentistry, University of Damascus, Damascus, Syria
| | - Zuhair Al-Nerabieah
- Pediatric Dentistry Department, Faculty of Dentistry, University of Damascus, Damascus, Syria
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2
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Jia B, Zhang B, Li J, Qin J, Huang Y, Huang M, Ming Y, Jiang J, Chen R, Xiao Y, Du J. Emerging polymeric materials for treatment of oral diseases: design strategy towards a unique oral environment. Chem Soc Rev 2024; 53:3273-3301. [PMID: 38507263 DOI: 10.1039/d3cs01039b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Oral diseases are prevalent but challenging diseases owing to the highly movable and wet, microbial and inflammatory environment. Polymeric materials are regarded as one of the most promising biomaterials due to their good compatibility, facile preparation, and flexible design to obtain multifunctionality. Therefore, a variety of strategies have been employed to develop materials with improved therapeutic efficacy by overcoming physicobiological barriers in oral diseases. In this review, we summarize the design strategies of polymeric biomaterials for the treatment of oral diseases. First, we present the unique oral environment including highly movable and wet, microbial and inflammatory environment, which hinders the effective treatment of oral diseases. Second, a series of strategies for designing polymeric materials towards such a unique oral environment are highlighted. For example, multifunctional polymeric materials are armed with wet-adhesive, antimicrobial, and anti-inflammatory functions through advanced chemistry and nanotechnology to effectively treat oral diseases. These are achieved by designing wet-adhesive polymers modified with hydroxy, amine, quinone, and aldehyde groups to provide strong wet-adhesion through hydrogen and covalent bonding, and electrostatic and hydrophobic interactions, by developing antimicrobial polymers including cationic polymers, antimicrobial peptides, and antibiotic-conjugated polymers, and by synthesizing anti-inflammatory polymers with phenolic hydroxy and cysteine groups that function as immunomodulators and electron donors to reactive oxygen species to reduce inflammation. Third, various delivery systems with strong wet-adhesion and enhanced mucosa and biofilm penetration capabilities, such as nanoparticles, hydrogels, patches, and microneedles, are constructed for delivery of antibiotics, immunomodulators, and antioxidants to achieve therapeutic efficacy. Finally, we provide insights into challenges and future development of polymeric materials for oral diseases with promise for clinical translation.
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Affiliation(s)
- Bo Jia
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangdong, China
| | - Beibei Zhang
- Department of Gynaecology and Obstetrics, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China.
- Department of Polymeric Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Jianhua Li
- Department of Polymeric Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Jinlong Qin
- Department of Gynaecology and Obstetrics, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China.
- Department of Polymeric Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Yisheng Huang
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangdong, China
| | - Mingshu Huang
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangdong, China
| | - Yue Ming
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangdong, China
| | - Jingjing Jiang
- Department of Polymeric Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Ran Chen
- Department of Polymeric Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Yufen Xiao
- Department of Gynaecology and Obstetrics, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China.
- Department of Polymeric Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, 4800 Caoan Road, Shanghai 201804, China
| | - Jianzhong Du
- Department of Gynaecology and Obstetrics, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China.
- Department of Polymeric Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, 4800 Caoan Road, Shanghai 201804, China
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3
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Qu X, Guo X, Zhu T, Zhang Z, Wang W, Hao Y. Microneedle patches containing mesoporous polydopamine nanoparticles loaded with triamcinolone acetonide for the treatment of oral mucositis. Front Bioeng Biotechnol 2023; 11:1203709. [PMID: 37214298 PMCID: PMC10196213 DOI: 10.3389/fbioe.2023.1203709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 04/24/2023] [Indexed: 05/24/2023] Open
Abstract
Oral mucositis (OM) is the most common disease of the oral mucosa, which affects people's daily production and life. Triamcinolone ointment is the common clinical drug for OM treatment. However, the hydrophobic properties of triamcinolone acetonide (TA) and the complex microenvironment of the oral cavity led to its low bioavailability and unstable therapeutic effects on ulcer wounds. Herein, dissolving microneedle patches (MNs) composed of mesoporous polydopamine nanoparticles (MPDA) loaded with TA (TA@MPDA), sodium hyaluronic acid (HA), and Bletilla striata polysaccharide (BSP) are prepared as the transmucosal delivery system. The prepared TA@MPDA-HA/BSP MNs exhibit well-arranged microarrays, high mechanical strength and fast solubility (<3 min) properties. In addition, the hybrid structure improves the biocompatibility of TA@MPDA and expedites oral ulcer healing in the SD rat model through the synergistic anti-inflammatory and pro-healing effects of microneedle ingredients (hormones, MPDA and Chinese herbs extracts), with 90% less amount of TA compared with Ning Zhi Zhu®. TA@MPDA-HA/BSP MNs are shown to be their great potential as novel ulcer dressings for OM management.
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Affiliation(s)
- Xiaoying Qu
- Department of Stomatology, School of Stomatology of Weifang Medical University, Weifang, China
| | - Xiaoli Guo
- School of Stomatology of Qingdao University, Qingdao, China
| | - Tingting Zhu
- School of Stomatology of Qingdao University, Qingdao, China
| | - Zhe Zhang
- School of Stomatology of Qingdao University, Qingdao, China
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4
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Recent advances in microneedle designs and their applications in drug and cosmeceutical delivery. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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The effect of thiol functional groups on bovine serum albumin/chitosan buccal mucoadhesive patches. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Li XJ, Li Y, Meng Y, Pu XQ, Qin JW, Xie R, Wang W, Liu Z, Jiang L, Ju XJ, Chu LY. Composite dissolvable microneedle patch for therapy of oral mucosal diseases. BIOMATERIALS ADVANCES 2022; 139:213001. [PMID: 35882148 DOI: 10.1016/j.bioadv.2022.213001] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
A composite microneedle patch (MN patch) is developed for oral transmucosal administration. To improve the oral transmucosal drug delivery efficiency, the composite MN patch is designed to consist of an array of 100 dissolvable microneedles (MNs) with drug-loaded tips and a backing layer. The MNs are composed of two parts, the hyaluronic acid (HA) tip part and the polyvinylpyrrolidone (PVP) base part. Due to the small size and sufficient mechanical strength, the HA-PVP MNs can painlessly penetrate the oral mucosa barrier and deliver drugs directly to the basal layer or submucosa. Betamethasone sodium phosphate (BSP), as the model drug, is concentrated in the HA tip parts to avoid the drug waste caused by mucosa elasticity. Considering the special moist environment and saliva flow in the mouth, a double-layer backing layer composed of a poly(vinyl alcohol) (PVA) adhesive layer and an ethyl cellulose (EC) waterproof layer is designed and constructed, which could reduce the saliva flow effects. The in vitro and in vivo results demonstrate that the MN patch could achieve rapid and efficient BSP release in oral mucosa due to the rapid dissolution of HA. The proposed MN patch provides a novel strategy for the therapy of oral mucosal diseases.
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Affiliation(s)
- Xin-Jiao Li
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China
| | - Yao Li
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China
| | - Yang Meng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xing-Qun Pu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China
| | - Jia-Wang Qin
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China
| | - Rui Xie
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China
| | - Lu Jiang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China.
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China
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7
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Aykaç K, Başaran E. Formulation and Characterization of Lacosamide-loaded Polymeric Microneedles. JOURNAL OF EXPLORATORY RESEARCH IN PHARMACOLOGY 2022; 7:61-75. [DOI: 10.14218/jerp.2021.00051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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8
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Zheng W, Hao Y, Wang D, Huang H, Guo F, Sun Z, Shen P, Sui K, Yuan C, Zhou Q. Preparation of triamcinolone acetonide-loaded chitosan/fucoidan hydrogel and its potential application as an oral mucosa patch. Carbohydr Polym 2021; 272:118493. [PMID: 34420748 DOI: 10.1016/j.carbpol.2021.118493] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 07/01/2021] [Accepted: 07/25/2021] [Indexed: 02/06/2023]
Abstract
Oral inflammatory diseases (OIDs) are among the most common lesions in the oral cavity, affecting the quality of human life and even causing oral cancer. However, most of the current oral mucosa patches still have some limitations, particularly instant, poor mechanical strength and conformability, low adhesion to tissue, and foreign body sensation. Herein, triamcinolone acetonide (TA)-loaded chitosan/fucoidan (CF) composite hydrogels were prepared via chemical crosslinking. The macro/microscopic morphologies and (bio)physicochemical properties of composite hydrogels were investigated. Incorporating fucoidan in chitosan hydrogels greatly enhanced their swelling behavior, mechanical strength, and adhesion properties. Further, the addition of TA in CF hydrogels improved their elastic feature, inhibited inflammatory response, and promoted the formation of mature and well-organized collagen fibers. The developed composite hydrogels displayed not only good antibacterial properties but also good cytocompatibility and histocompatibility. Thus, the designed hydrogels allow the development of oral mucosa patches as a potential treatment for OIDs.
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Affiliation(s)
- Weiping Zheng
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China; School of Stomatology, Qingdao University, Qingdao 266003, China
| | - Yuanping Hao
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266021, China
| | - Danyang Wang
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China; School of Stomatology, Qingdao University, Qingdao 266003, China; Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266021, China
| | - Hailin Huang
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China; School of Stomatology, Qingdao University, Qingdao 266003, China
| | - Fangze Guo
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China; School of Stomatology, Qingdao University, Qingdao 266003, China
| | - Zhanyi Sun
- State Key Laboratory of Bioactive Seaweed Substances, Qingdao Bright Moon Seaweed Group Co., Ltd., Qingdao 266400, China
| | - Peili Shen
- State Key Laboratory of Bioactive Seaweed Substances, Qingdao Bright Moon Seaweed Group Co., Ltd., Qingdao 266400, China
| | - Kunyan Sui
- State Key Laboratory of Bio-Fibers and Eco-textiles, College of Materials Science and Engineering, Collaborative Innovation Center for Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, China
| | - Changqing Yuan
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China; School of Stomatology, Qingdao University, Qingdao 266003, China.
| | - Qihui Zhou
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China; School of Stomatology, Qingdao University, Qingdao 266003, China; Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266021, China.
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9
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Jang M, Kang BM, Yang H, Ohn J, Kwon O, Jung H. High-Dose Steroid Dissolving Microneedle for Relieving Atopic Dermatitis. Adv Healthc Mater 2021; 10:e2001691. [PMID: 33586358 DOI: 10.1002/adhm.202001691] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 01/14/2021] [Indexed: 11/09/2022]
Abstract
Dissolving microneedles (DMN) supplemented with therapeutic molecules have been developed to enhance transdermal delivery efficiency of topically applied drugs in a minimally invasive manner. However, the dose of the drugs in DMN system is limited owing to the low solubility of drug. In fact, although triamcinolone acetonide (TA) is one of the most widely prescribed drugs for relieving atopic dermatitis (AD), its poor dissolving nature makes it difficult to design and fabricate DMN containing therapeutic dosage of TA. In this study, TA suspension is introduced to encapsulate therapeutic dosage of TA. Sonication and composition optimization of polymers is key to fabricate high dose TA-DMN to induce particle size reduction and dispersion stability of suspension, respectively. After confirming the physical performance of TA-DMN using the selected formulation in vitro, the anti-inflammatory effects of TA-DMN are evaluated in vivo using a mouse model affected with skin inflammation to mimic AD in humans. Herein, high-dose TA-DMN is presented as a candidate agent for relieving AD and, furthermore, for wide application in the treatment of skin inflammatory diseases in which high-dose steroid drugs are required.
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Affiliation(s)
- Mingyu Jang
- Department of Biotechnology Yonsei University 50 Yonsei‐ro Seoul 08389 Republic of Korea
- JUVIC Inc. 272 Digital‐ro Seoul 08389 Republic of Korea
| | - Bo Mi Kang
- Department of Dermatology Seoul National University College of Medicine Seoul 03080 Republic of Korea
- Institute of Human‐Environment Interface Biology Medical Research Center Seoul National University Seoul 03080 Republic of Korea
- Laboratory of Cutaneous Aging and Hair Research Biomedical Research Institute Seoul National University Hospital Seoul 03080 Republic of Korea
| | - Huisuk Yang
- JUVIC Inc. 272 Digital‐ro Seoul 08389 Republic of Korea
| | - Jungyoon Ohn
- Department of Dermatology Seoul National University College of Medicine Seoul 03080 Republic of Korea
- Institute of Human‐Environment Interface Biology Medical Research Center Seoul National University Seoul 03080 Republic of Korea
- Laboratory of Cutaneous Aging and Hair Research Biomedical Research Institute Seoul National University Hospital Seoul 03080 Republic of Korea
| | - Ohsang Kwon
- Department of Dermatology Seoul National University College of Medicine Seoul 03080 Republic of Korea
- Institute of Human‐Environment Interface Biology Medical Research Center Seoul National University Seoul 03080 Republic of Korea
- Laboratory of Cutaneous Aging and Hair Research Biomedical Research Institute Seoul National University Hospital Seoul 03080 Republic of Korea
| | - Hyungil Jung
- Department of Biotechnology Yonsei University 50 Yonsei‐ro Seoul 08389 Republic of Korea
- JUVIC Inc. 272 Digital‐ro Seoul 08389 Republic of Korea
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10
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Ovalbumin and cholera toxin delivery to buccal mucus for immunization using microneedles and comparison of immunological response to transmucosal delivery. Drug Deliv Transl Res 2021; 11:1390-1400. [PMID: 33759112 DOI: 10.1007/s13346-021-00964-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2021] [Indexed: 01/01/2023]
Abstract
The oral mucosa is an effective site for vaccination. However, for oral mucosal vaccines, delivery of the right dose of vaccine is not possible due to the water-rich environment. In this study, the buccal mucosa, which is easy to access using a microneedle array in the oral cavity, was selected as the administration site. The immune responses to the use of microneedles to conventional transmucosal delivery were compared. In addition, the adjuvant effect of the addition of cholera toxin (CT) to the drug formulation was observed. Two kinds of patches were prepared: (1) Ovalbumin (OVA) was dip coated only on the tips of microneedles (C-OVA-MN) and (2) OVA was coated on the surface of a flat disk patch substrate without microneedles (C-OVA-D). The drug delivery properties of C-OVA-MN and C-OVA-D were investigated using fluorescent-labeled OVA (OVA/FITC). Each patch was administered to mice twice, 2 weeks apart, and then antibody titers were measured. A microneedle patch can deliver vaccine into the epithelium of the buccal mucosa in a short period of time compared to transmucosal delivery. A microneedle system of C-OVA-MN showed a high serum IgG titer. In addition, CT triggered CD8+ and CD4+ T cell-mediated immune responses. Through this study, we present the possibility of a new method of vaccination to the buccal mucosa using microneedles and CT adjuvant. Illustration of delivery of vaccine to the oral mucosal epithelium using a microneedle patch: Ovalbumin (OVA)-coated microneedle (C-OVA-MN) consists of tip, step, and coating formulation. Microneedle patch coated with OVA formulation is targeting buccal mucosa, which is easy to access in the oral cavity. OVA is delivered to the buccal epithelium precisely using a microneedle patch, and OVA is delivered by transmucosal route using a disk patch.
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11
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do Nascimento EG, de Azevedo EP, Alves-Silva MF, Aragão CFS, Fernandes-Pedrosa MF, da Silva-Junior AA. Supramolecular aggregates of cyclodextrins with co-solvent modulate drug dispersion and release behavior of poorly soluble corticosteroid from chitosan membranes. Carbohydr Polym 2020; 248:116724. [PMID: 32919548 DOI: 10.1016/j.carbpol.2020.116724] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/13/2020] [Accepted: 06/30/2020] [Indexed: 01/29/2023]
Abstract
In this study, the ability of different beta-cyclodextrins to facilitate homogeneous dispersion of triamcinolone acetonide (TA) into chitosan membranes is assessed. Drug loading was assessed through atomic force microscopy (AFM), scanning electron microscopy (MEV-FEG), and X-ray diffraction analyses. Drug interactions with the co-polymer were investigated with Fourier transform infrared spectroscopy, thermal analyses. Swelling assay, and in vitro drug release experiment were used to assess TA release behavior. Undispersed particles of drug were observed to remain in the simple chitosan membranes. Hydroxypropyl-β-cyclodextrin enabled the dispersion of TA into chitosan membranes and subsequent sustained drug release. In addition, the membrane performance as a drug delivery device is improved by adding specified amounts of the co-solvent triethanolamine. The experimental data presented in this study confirm the utility of our novel and alternative approach for obtaining a promising device for slow and controlled release of glucocorticoids, such as triamcinolone acetonide, for topical ulcerations.
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Affiliation(s)
- Ednaldo Gomes do Nascimento
- Laboratory of Pharmaceutical Technology and Biotechnology, Department of Pharmacy, Federal University of Rio Grande do Norte, UFRN, Gal. Gustavo Cordeiro de Farias, Petrópolis, 59072-570, Natal, RN, Brazil
| | - Eduardo Pereira de Azevedo
- Department of Pharmacy, Federal University of Potiguar, UnP, Av. Sen. Salgado Filho, 1610, Lagoa Nova, 59056-000, Natal, RN, Brazil
| | - Mariana Farias Alves-Silva
- Laboratory of Pharmaceutical Technology and Biotechnology, Department of Pharmacy, Federal University of Rio Grande do Norte, UFRN, Gal. Gustavo Cordeiro de Farias, Petrópolis, 59072-570, Natal, RN, Brazil
| | - Cícero Flávio S Aragão
- Laboratory of Quality Control of Pharmaceuticals, Department of Pharmacy, Federal University of Rio Grande do Norte, UFRN, Gal. Gustavo Cordeiro de Farias, Petrópolis, 59072-570, Natal, RN, Brazil
| | - Matheus F Fernandes-Pedrosa
- Laboratory of Pharmaceutical Technology and Biotechnology, Department of Pharmacy, Federal University of Rio Grande do Norte, UFRN, Gal. Gustavo Cordeiro de Farias, Petrópolis, 59072-570, Natal, RN, Brazil
| | - Arnóbio Antônio da Silva-Junior
- Laboratory of Pharmaceutical Technology and Biotechnology, Department of Pharmacy, Federal University of Rio Grande do Norte, UFRN, Gal. Gustavo Cordeiro de Farias, Petrópolis, 59072-570, Natal, RN, Brazil.
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Guillot AJ, Cordeiro AS, Donnelly RF, Montesinos MC, Garrigues TM, Melero A. Microneedle-Based Delivery: An Overview of Current Applications and Trends. Pharmaceutics 2020; 12:pharmaceutics12060569. [PMID: 32575392 PMCID: PMC7355570 DOI: 10.3390/pharmaceutics12060569] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 06/13/2020] [Accepted: 06/16/2020] [Indexed: 12/18/2022] Open
Abstract
Microneedle arrays (MNA) are considered as one of the most promising resources to achieve systemic effects by transdermal delivery of drugs. They are designed as a minimally invasive, painless system which can bypass the stratum corneum, overcoming the potential drawbacks of subcutaneous injections and other transdermal delivery systems such as chemical enhancers, nano and microparticles, or physical treatments. As a trendy field in pharmaceutical and biomedical research, its applications are constantly evolving, even though they are based on very well-established techniques. The number of molecules administered by MNA are also increasing, with insulin and vaccines administration being the most investigated. Furthermore, MNA are being used to deliver cells and applied in other organs and tissues like the eyes and buccal mucosae. This review intends to offer a general overview of the current state of MNA research, focusing on the strategies, applications, and types of molecules delivered recently by these systems. In addition, some information about the materials and manufacturing processes is presented and safety data is discussed.
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Affiliation(s)
- Antonio José Guillot
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vincent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (A.M.)
| | - Ana Sara Cordeiro
- School of Pharmacy, Queen’s University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK; (A.S.C.); (R.F.D.)
| | - Ryan F. Donnelly
- School of Pharmacy, Queen’s University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK; (A.S.C.); (R.F.D.)
| | - M. Carmen Montesinos
- Department of Pharmacology, Faculty of Pharmacy, University of Valencia, Avda. Vincent Andrés Estellés s/n, 46100 Burjassot, Spain
- Center of Molecular Recognition and Technological Development (IDM), 46100 Burjassot, Spain
- Correspondence: (M.C.M.); (T.M.G.)
| | - Teresa M. Garrigues
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vincent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (A.M.)
- Correspondence: (M.C.M.); (T.M.G.)
| | - Ana Melero
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Avda. Vincent Andrés Estellés s/n, 46100 Burjassot, Spain; (A.J.G.); (A.M.)
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