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Ehtezazi T, Kteich A, Abdulkarim R, Anderson V, Algellay M, McCloskey AP, Carter N, Roberts M, Assi S, Al-Jumeily D, Thompson M, Mohamed FA, Sarker SD. Reducing Temperature of Fused Deposition Modelling 3D Printing for Linalool Fast Dissolving Oral Films by Increasing Printer Nozzle Diameter. J Pharm Sci 2024:S0022-3549(24)00136-9. [PMID: 38621439 DOI: 10.1016/j.xphs.2024.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/10/2024] [Accepted: 04/10/2024] [Indexed: 04/17/2024]
Abstract
Oral thrush and throat infections can occur in a wide range of patients. Treatments are available; however, resistance to drugs is a major problem for treating oral and throat infections. Three-dimensional printing (3DP) of fast dissolving oral films (FDFs) of linalool oil may provide an alternative solution. Linalool oil FDFs were printed by fused deposition modelling across 1-18 % w/w linalool content range with nozzle diameters of 0.4 or 1 mm at the temperature range of 150 °C-185 °C. The FDFs were evaluated for physicochemical and mechanical properties. Increasing the printer nozzle diameter to 1 mm allowed reducing the printing temperature from 185 °C to 150 °C; consequently, more linalool was quantified in the films with improved content uniformity. The higher linalool content in the films increased the film disintegration time and mechanical strength. FDFs containing 10% w/w linalool showed clear antifungal activity against Candida albicans. Raman spectroscopy suggested linalool separation from excipients at higher temperature printing. Viscoelastic measurements indicated that to achieve printing; the elastic modulus of molten filament needed to be higher than the loss modulus at low angular frequencies. In conclusion, increasing the printing nozzle diameter may avoid loss of the active ingredient by reducing the temperature of the 3DP process.
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Affiliation(s)
- Touraj Ehtezazi
- Centre for Natural Product Discovery, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom; School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom.
| | - Asmaa Kteich
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom
| | - Rana Abdulkarim
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom
| | - Vicki Anderson
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom
| | - Marwan Algellay
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom
| | - Alice P McCloskey
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom
| | - Neve Carter
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom
| | - Matthew Roberts
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom
| | - Sulaf Assi
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom
| | - Dhiya Al-Jumeily
- School of Computer Science and Mathematics, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom
| | - Molly Thompson
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom
| | - Fazreelia Abu Mohamed
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom
| | - Satyajit D Sarker
- Centre for Natural Product Discovery, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom; School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom
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Wang Y, Lei L, Huang J, Cai Z, Huang X. Sonic-assisted antibacterial photodynamic therapy: a strategy for enhancing lateral canal disinfection. BMC Oral Health 2024; 24:5. [PMID: 38166876 PMCID: PMC10762957 DOI: 10.1186/s12903-023-03801-6] [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: 10/16/2023] [Accepted: 12/19/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Bacterial infections in lateral canals pose challenges for root canal treatment. This in vitro study aims to evaluate the antibacterial efficacy of sonic-assisted methylene blue mediated antimicrobial photodynamic therapy (MB-aPDT) against Enterococcus faecalis (E. faecalis) in infected lateral canals. METHODS Sixty-five premolars infected with E. faecalis in lateral canals were randomly divided into five groups (n = 13) and treated with : (1) 5.25% NaOCl (positive control); (2) Saline (negative control); (3) Sonic-assisted MB-aPDT; (4) 3% NaOCl + MB-aPDT; (5) 3% NaOCl + sonic-assisted MB-aPDT, respectively. The antibacterial efficacy was evaluated by the colony- counting method (CCM) and scanning electronic microscope (SEM). RESULTS Both 5.25% NaOCl and the 3% NaOCl + sonic-assisted MB-aPDT exhibited the most effective while comparable antibacterial effects without significant statistical difference (P > 0.05). Furthermore, the antibacterial effect of the 3% NaOCl + MB-aPDT group was significantly higher compared to that of the sonic-assisted MB-aPDT group (P < 0.05). The SEM results demonstrated notable morphological alterations in E. faecalis across all experimental groups, except for the negative control group. CONCLUSION The concentration of NaOCl can be reduced to a safe level while preserving its antibacterial efficacy through the synergism with the sonic-assisted MB-aPDT in this study.
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Affiliation(s)
- Yanhuang Wang
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, PR China
| | - Lishan Lei
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, PR China
| | - Jing Huang
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, PR China
| | - Zhiyu Cai
- Department of Stomatology, Fujian Medical University Union Hospital, Fuzhou, 350002, PR China.
| | - Xiaojing Huang
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, PR China.
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Raffaele RM, Baldo ME, Grimm MB, Campos L, Palma LF. Adjunctive phototherapies for oral manifestation of HIV-related histoplasmosis and leishmaniasis: An unusual case report. Photodiagnosis Photodyn Ther 2023; 44:103768. [PMID: 37634606 DOI: 10.1016/j.pdpdt.2023.103768] [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: 08/02/2023] [Revised: 08/19/2023] [Accepted: 08/23/2023] [Indexed: 08/29/2023]
Abstract
BACKGROUND Secondary infections of leishmaniasis and histoplasmosis in patients with advanced HIV are still a concern in low- and middle-income countries. The most common drugs for the treatment of both infections may be problematic mainly due to their toxicity. AIM AND CASE REPORT The present study aimed to report a case in which a concurrent oral manifestation of leishmaniasis and histoplasmosis in a hospitalized patient with HIV was managed with a combination of photobiomodulation therapy (PBMT) and antimicrobial photodynamic therapy (aPDT) as an adjuvant treatment. In addition to the use of conventional systemic oral drugs, a single aPDT session followed by two PBMT sessions was proposed, which resulted in complete wound healing within four days. CONCLUSION Given the complexity of the current case, PBMT in combination with aPDT may be considered as an effective adjuvant option for managing oral infectious lesions of histoplasmosis and leishmaniasis in immunocompromised patients.
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Affiliation(s)
| | - Mario Eduardo Baldo
- Dentistry Service, Charity Hospital of Campo Grande. Campo Grande, MS, Brazil; Graduate Program on Health and Development in West Central Region, Federal University of Mato Grosso do Sul. Campo Grande, MS, Brazil
| | | | - Luana Campos
- Graduate Program in Implantology, University of Santo Amaro, School of Dentistry. São Paulo, SP, Brazil.
| | - Luiz Felipe Palma
- Department of Pathology, Federal University of São Paulo. São Paulo, SP, Brazil
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Wu X, Hu Y. Photodynamic Therapy for the Treatment of Fungal Infections. Infect Drug Resist 2022; 15:3251-3266. [PMID: 35761978 PMCID: PMC9233483 DOI: 10.2147/idr.s369605] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 06/11/2022] [Indexed: 11/23/2022] Open
Abstract
Cutaneous fungal infections are common in humans and are associated with significant physical and psychological distress to patients. Although conventional topical and/or oral anti-fungal medications are commonly recommended treatments, drug resistance has emerged as a significant concern in this patient population, and safer, more efficacious, and cost-effective alternatives are warranted. Recent studies have reported effectiveness of photodynamic therapy (PDT) against fungal infections without severe adverse effects. In this review, we briefly discuss the mechanisms underlying PDT, current progress, adverse effects, and limitations of this treatment in the management of superficial and deep fungal infections.
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Affiliation(s)
- Xuelin Wu
- Department of Dermatology and Venereology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, People's Republic of China
| | - Yongxuan Hu
- Department of Dermatology and Venereology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, People's Republic of China
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Rojz JCC, Cotomacio CC, Caran EMM, Chen MJ, Figueiredo MLS. Photodynamic therapy to control oral candidiasis in a pediatric patient submitted to head and neck radiotherapy. Photodiagnosis Photodyn Ther 2021; 37:102627. [PMID: 34798350 DOI: 10.1016/j.pdpdt.2021.102627] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 10/24/2021] [Accepted: 11/12/2021] [Indexed: 10/19/2022]
Abstract
Candida albicans is an opportunistic yeast of the oral microbiome which can cause candidiasis in systemically susceptible individuals, such as those undergoing cancer treatment. The local management of the oral lesions is challenging and may be significantly improved with photodynamic therapy (PDT). PDT consists of an association of light with a photosensitizing agent and oxygen, whose interaction produces reactive oxygen species capable of reducing non-specific microbial contamination without causing side effects. This study aimed to report a case in which oral candidiasis was managed with PDT. A 12-year-old male patient undergoing head and neck radiotherapy (HNRT) for Undifferentiated Mesenchymal Neoplasm presented with dysgeusia, oral pain, and yeast infection on the 13th session of HNRT. The patient used topical antifungals for 30 consecutive days with no lesion or symptom remission. PDT was then proposed and the lesion was healed after a single PDT session, with no further clinical signs of infection and return to normal oral function. Local and non-invasive management of oral candidiasis is of utmost importance for immunocompromised patients, with good acceptability, no systemic side effects, and no drug interactions.
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Affiliation(s)
| | - Claudia C Cotomacio
- Pediatric Oncology Institute/GRAACC (Support Group for Children and Adolescents with Cancer), São Paulo, Brazil.
| | - Eliana M M Caran
- Pediatric Oncology Institute/GRAACC (Support Group for Children and Adolescents with Cancer), São Paulo, Brazil
| | - Michael Jenwei Chen
- Pediatric Oncology Institute/GRAACC (Support Group for Children and Adolescents with Cancer), São Paulo, Brazil
| | - Maria Luisa S Figueiredo
- Pediatric Oncology Institute/GRAACC (Support Group for Children and Adolescents with Cancer), São Paulo, Brazil
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