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Activity of antifungal drugs and Brazilian red and green propolis extracted with different methodologies against oral isolates of Candida spp. BMC Complement Med Ther 2021; 21:286. [PMID: 34814913 PMCID: PMC8611924 DOI: 10.1186/s12906-021-03445-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 10/19/2021] [Indexed: 01/12/2023] Open
Abstract
Background Oral candidiasis is an opportunistic disease caused by fungi of the Candida genus. The occurrence of Candida spp. resistance to the commercial antifungal drugs points to the search for alternative treatments. Propolis has been successfully used in the treatment of infectious diseases for centuries. It has been proposed that an ultrasound pretreatment in the propolis extraction protocol can enhance the concentrations of molecules with antimicrobial activities in the final extract. Thus, this study aimed to compare the antifungal activity against oral Candida spp. isolates of green and red propolis extracts submitted or not to an ultrasound pretreatment before the extraction procedure. Methods Candida spp. were isolated from denture stomatitis lesions and identified by sequencing. Oral Candida spp. isolates and reference strains were submitted to broth microdilution assays using commercial antifungals and Brazilian green and red propolis extracts submitted or not to an ultrasound pretreatment. Minimal Inhibitory Concentrations (MIC) and Minimal Fungicide Concentrations (MFC) were determined and biofilm formation interference was evaluated for resistant isolates. Results C. albicans, Candida tropicalis and Candida dubliniensis were isolated from denture stomatitis lesions. Growth inhibition was observed in all Candida isolates incubated with all green and red propolis extracts. At lower doses, red propolis extracts presented significant antifungal activity. The ultrasound pretreatment did not promote an increase in the antifungal activity of green or red propolis. Three isolates, which were highly resistant to fluconazole and itraconazole, were susceptible to low doses of red propolis extracts. These same three specimens had their biofilm formation inhibted by red propolis ethanolic extract. Conclusions Thus, red propolis can be faced as a promising natural product to be used in the auxiliary antifungal therapy of denture stomatitis. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-021-03445-5.
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Rodrigues Costa A, Bezerra JWA, Pereira da Cruz R, de Freitas MA, da Silva VB, Neto JC, dos Santos ATL, Bezerra Morais Braga MF, da Silva LA, Ivaneide Rocha M, Kamdem JP, Iriti M, Vitalini S, Duarte AE, Barros LM. In vitro Antibiotic and Modulatory Activity of Mesosphaerum suaveolens (L.) Kuntze against Candida strains. Antibiotics (Basel) 2020; 9:E46. [PMID: 32012710 PMCID: PMC7168177 DOI: 10.3390/antibiotics9020046] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/20/2020] [Accepted: 01/24/2020] [Indexed: 11/24/2022] Open
Abstract
The emergence of fungal resistance to commercial drugs has been a major problem for the WHO. In this context, research with natural products is promising in the discovery of new active substances. Thus, this work evaluated the antifungal effect of a medicinal plant (i.e., Mesosphaerum suaveolens) against strains of the genus Candida, tested the combined effect with the drug fluconazole, and, finally, determined the phenolic constituents present in the species. Initially, aqueous extracts of leaves (AELMs) and aerial parts (AEAPMs) of the species were prepared. For microbiological assays, the minimum fungicidal concentration was determined by broth microdilution, and the combined effect of fluconazole extracts were verified by sub-inhibitory microdilution concentrations (CFM/8) followed by spectrophotometric readings which were used to determine the IC50. HPLC detected the presence of flavonoids and phenolic acids, detecting eight compounds present in the samples of which caffeic acid and quercetin were major components. The AELMs modulated fluconazole activity since it decreased fluconazole's IC50 from 7.8 µg/mL to an IC50 of 4.7 µg/mL (CA LM 77) and from 28.8 µg/mL to 18.26 µg/mL (CA INCQS 40006) for the C. albicans strains. The AEAPMs were able to potentiate the effect of fluconazole more effectively than the AELMs. Such an effect was significant for the 16 µg/mL concentration for CA LM 77 and 32 µg/mL for CA INCQS 40006. The AEAPMs as well as the AELMs presented clinically relevant activities for C. tropicalis strains. For the C. tropicalis LM 23 strain, the AEPMs obtained an IC50 of 25 µg/mL and the AELMs an IC50 of 359.9 µg/mL.
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Affiliation(s)
- Adrielle Rodrigues Costa
- Postgraduate Program in Molecular Bioprospecting, Regional University of Cariri (URCA), Crato 63122-290, CE, Brazil; (A.R.C.); (V.B.d.S.)
| | | | - Rafael Pereira da Cruz
- Laboratory of Applied Mycology of Cariri, Regional University of Cariri (URCA), Crato 63122-290, CE, Brazil; (R.P.d.C.); (M.A.d.F.); (A.T.L.d.S.)
| | - Maria Audilene de Freitas
- Laboratory of Applied Mycology of Cariri, Regional University of Cariri (URCA), Crato 63122-290, CE, Brazil; (R.P.d.C.); (M.A.d.F.); (A.T.L.d.S.)
| | - Viviane Bezerra da Silva
- Postgraduate Program in Molecular Bioprospecting, Regional University of Cariri (URCA), Crato 63122-290, CE, Brazil; (A.R.C.); (V.B.d.S.)
| | - João Cruz Neto
- Nursing Course at the Regional University of Cariri (URCA), Crato-CE-Brazil;
| | - Antonia Thassya Lucas dos Santos
- Laboratory of Applied Mycology of Cariri, Regional University of Cariri (URCA), Crato 63122-290, CE, Brazil; (R.P.d.C.); (M.A.d.F.); (A.T.L.d.S.)
| | - Maria Flaviana Bezerra Morais Braga
- Laboratory of Applied Mycology of Cariri, Regional University of Cariri (URCA), Crato 63122-290, CE, Brazil; (R.P.d.C.); (M.A.d.F.); (A.T.L.d.S.)
| | - Leomara Andrade da Silva
- Postgraduate Program in Botany – National Amazon Research Institute (INPA), Manaus 69067-375, AM, Brazil;
| | - Maria Ivaneide Rocha
- Biology and Toxicology Laboratory, University of Regional Cariri (URCA), Crato 63122-290, CE, Brazil (J.P.K.); (A.E.D.)
| | - Jean Paul Kamdem
- Biology and Toxicology Laboratory, University of Regional Cariri (URCA), Crato 63122-290, CE, Brazil (J.P.K.); (A.E.D.)
| | - Marcello Iriti
- Department of Agricultural and Environmental Sciences, Milan State University, 20133 Milan, Italy;
| | - Sara Vitalini
- Department of Agricultural and Environmental Sciences, Milan State University, 20133 Milan, Italy;
| | - Antonia Eliene Duarte
- Biology and Toxicology Laboratory, University of Regional Cariri (URCA), Crato 63122-290, CE, Brazil (J.P.K.); (A.E.D.)
| | - Luiz Marivando Barros
- Vegetable Ecophysiology Laboratory, Regional University of Cariri, Crato 63122-290, CE, Brazil;
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Purpuriocillium lilacinum infection in captive loggerhead sea turtle hatchlings. Med Mycol Case Rep 2018; 23:8-11. [PMID: 30425920 PMCID: PMC6222136 DOI: 10.1016/j.mmcr.2018.10.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 09/20/2018] [Accepted: 10/22/2018] [Indexed: 01/24/2023] Open
Abstract
This paper reports a case of Purpureocillium lilacinum infection in seven loggerhead sea turtle (Caretta caretta) hatchlings kept in an aquarium under inadequate condition. The fungus was isolated from skin and pulmonary lesions. Metilene blue and NaCl solutions, Schinus terebinthifolius and eucalyptus essential oils Minimum Inhibitory Concentrations were determined indicating new possibilities for treatment.
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Zhang Y, Chen YY, Huang L, Chai ZG, Shen LJ, Xiao YH. The antifungal effects and mechanical properties of silver bromide/cationic polymer nano-composite-modified Poly-methyl methacrylate-based dental resin. Sci Rep 2017; 7:1547. [PMID: 28484255 PMCID: PMC5431568 DOI: 10.1038/s41598-017-01686-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 03/31/2017] [Indexed: 11/09/2022] Open
Abstract
Poly-methyl methacrylate (PMMA)-based dental resins with strong and long-lasting antifungal properties are critical for the prevention of denture stomatitis. This study evaluated the antifungal effects on Candida albicans ATCC90028, the cytotoxicity toward human dental pulp cells (HDPCs), and the mechanical properties of a silver bromide/cationic polymer nano-composite (AgBr/NPVP)-modified PMMA-based dental resin. AgBr/NPVP was added to the PMMA resin at 0.1, 0.2, and 0.3 wt%, and PMMA resin without AgBr/NPVP served as the control. Fungal growth was inhibited on the AgBr/NPVP-modified PMMA resin compared to the control (P < 0.05), and the antifungal activity increased as the incorporation of the AgBr/NPVP antimicrobial composite increased. Confocal laser scanning microscopy (CLSM) showed that the number of fungal cells attached to the modified PMMA resin was considerably lower than in the control. The relative growth rate of HDPCs of modified groups were higher than 75%. The flexural strength (FS) and flexural modulus (FM) were not significantly different (P > 0.05) between the experimental and control groups. These data indicate that the incorporation of AgBr/NPVP conferred strong and long-lasting antifungal effects against Candida albicans to the PMMA resin, and it has low toxicity toward HDPCs, and its mechanical properties were not significantly affected.
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Affiliation(s)
- Yu Zhang
- Department of Stomatology, Kunming General Hospital of Chengdu Military Command, Teaching Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yin-Yan Chen
- Department of Stomatology, Kunming General Hospital of Chengdu Military Command, Teaching Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Li Huang
- State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Zhi-Guo Chai
- State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Li-Juan Shen
- State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Yu-Hong Xiao
- Department of Stomatology, Kunming General Hospital of Chengdu Military Command, Teaching Hospital of Kunming Medical University, Kunming, Yunnan, China. .,Center for Dental Research, School of dentistry, Loma Linda University, Loma Linda, California, USA.
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Murakami M, Fujishima K, Nishi Y, Minemoto Y, Kanie T, Taguchi N, Nishimura M. Impact of Type and Duration of Application of Commercially Available Oral Moisturizers on Their Antifungal Effects. J Prosthodont 2016; 27:52-56. [PMID: 26916515 DOI: 10.1111/jopr.12458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2015] [Indexed: 11/30/2022] Open
Abstract
PURPOSE To examine the impact of oral moisturizer type and application time on antifungal effects. MATERIALS AND METHODS Seventeen oral moisturizers (7 liquids, 10 gels) and amphotericin B (AMPH-B) were tested. Antifungal effects were evaluated with newly opened moisturizer samples (0 hour) and with samples incubated for 8 hours to simulate contact during sleep. Candida albicans samples (108 cells/ml) were placed into cylindrical holes in 50% trypticase soy agar plates. Antifungal effects were evaluated based on growth-inhibitory zones after 24 hours. Equal quantities of moisturizers showing growth-inhibitory zones were mixed as additional samples. The effects of moisturizer type and application time on growth-inhibitory zones were evaluated with ANOVA. Growth-inhibitory zone sizes were compared with multiple comparisons. RESULTS Growth-inhibitory zones were found with two liquids, one gel, moisturizer mixtures, and AMPH-B. Significant differences in antifungal effects were found among different moisturizer types and between the 0- and 8-hour groups. The growth-inhibitory zones of the 8-hour group were significantly smaller than those of the 0-hour group. In both the 0- and 8-hour groups, the growth-inhibitory zones of the liquid-gel mixtures were significantly larger than those of other moisturizer types, and were the same size as those of AMPH-B at two concentrations (1.25 and 2.5 μg/ml). Growth-inhibitory zones of individual moisturizers and liquid-liquid mixtures were the same size as those of lower AMPH-B concentrations (0.16, 0.31, and 0.63 μg/ml). CONCLUSION Our findings suggest that mixing liquid and gel moisturizers improves their antifungal efficiency.
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Affiliation(s)
- Mamoru Murakami
- Denture Prosthodontics Restoration, Advanced Dentistry Centre, Kagoshima University Medical and Dental Hospital, Kagoshima, Japan
| | - Kei Fujishima
- Department of Oral and Maxillofacial Prosthodontics, Field of Oral and Maxillofacial Rehabilitation, Advanced Therapeutic Course, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Yasuhiro Nishi
- Department of Oral and Maxillofacial Prosthodontics, Field of Oral and Maxillofacial Rehabilitation, Advanced Therapeutic Course, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Yoko Minemoto
- Denture Prosthodontics Restoration, Advanced Dentistry Centre, Kagoshima University Medical and Dental Hospital, Kagoshima, Japan
| | - Takahito Kanie
- Department of Biomaterials Science, Field of Oral and Maxillofacial Rehabilitation, Advanced Therapeutic Course, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Norihiro Taguchi
- Department of Dental Education, Field of Social and Behavioral Medicine, Health Sciences Course, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Masahiro Nishimura
- Department of Oral and Maxillofacial Prosthodontics, Field of Oral and Maxillofacial Rehabilitation, Advanced Therapeutic Course, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
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Monteiro DR, Gorup LF, Takamiya AS, de Camargo ER, Filho ACR, Barbosa DB. Silver distribution and release from an antimicrobial denture base resin containing silver colloidal nanoparticles. J Prosthodont 2011; 21:7-15. [PMID: 22050139 DOI: 10.1111/j.1532-849x.2011.00772.x] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
PURPOSE The aim of this study was to evaluate a denture base resin containing silver colloidal nanoparticles through morphological analysis to check the distribution and dispersion of these particles in the polymer and by testing the silver release in deionized water at different time periods. MATERIALS AND METHODS A Lucitone 550 denture resin was used, and silver nanoparticles were synthesized by reduction of silver nitrate with sodium citrate. The acrylic resin was prepared in accordance with the manufacturers' instructions, and silver nanoparticle suspension was added to the acrylic resin monomer in different concentrations (0.05, 0.5, and 5 vol% silver colloidal). Controls devoid of silver nanoparticles were included. The specimens were stored in deionized water at 37°C for 7, 15, 30, 60, and 120 days, and each solution was analyzed using atomic absorption spectroscopy. RESULTS Silver was not detected in deionized water regardless of the silver nanoparticles added to the resin and of the storage period. Micrographs showed that with lower concentrations, the distribution of silver nanoparticles was reduced, whereas their dispersion was improved in the polymer. Moreover, after 120 days of storage, nanoparticles were mainly located on the surface of the nanocomposite specimens. CONCLUSIONS Incorporation of silver nanoparticles in the acrylic resin was evidenced. Moreover, silver was not detected by the detection limit of the atomic absorption spectrophotometer used in this study, even after 120 days of storage in deionized water. Silver nanoparticles are incorporated in the PMMA denture resin to attain an effective antimicrobial material to help control common infections involving oral mucosal tissues in complete denture wearers.
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Affiliation(s)
- Douglas Roberto Monteiro
- Department of Dental Materials and Prosthodontics, Araçatuba Dental School, Univ Estadual Paulista, Brazil Federal University of São Carlos-Exact Science and Technology Center, Brazil
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Lyon JP, da Costa SC, Totti VMG, Munhoz MFV, de Resende MA. Predisposing conditions forCandidaspp. carriage in the oral cavity of denture wearers and individuals with natural teeth. Can J Microbiol 2006; 52:462-7. [PMID: 16699571 DOI: 10.1139/w05-148] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Candida species are a normal commensal present in a large percentage of healthy individuals. Denture wearers are predisposed to the development of candidosis and to the presence of Candida spp. The presence of the yeast, even in healthy subjects, should be considered more carefully. We investigated the prevalence of Candida spp. in 112 denture wearers and 103 individuals with natural teeth, patients from the clinic of total prosthesis of the Dental School of the Federal University of Minas Gerais, Brazil, and from the School of Pharmacy and Dentistry of Alfenas, Brazil. Factors like gender, age over 60 years, low education, and xerostomia were directly associated with the presence of Candida yeasts at a significance level of 5% (p > 0.05). However, the major predisposing factor for the carrier state was wearing dentures (p = 0.001). Candida isolates were identified using morphological and biochemical profiles. Seventy-one isolates were identified as C. albicans (65.1%), 15 as C. glabrata (13.7%), 8 as C. parapsilosis (7.3%), 3 as C. krusei (2.7%), and 12 as C. tropicalis (11.0%). Susceptibility testing to fluconazole and itraconazole was also performed with the strains obtained. Both drugs showed a strong inhibition against most oral isolates.Key words: yeast infection, prosthetic devices, oral cavity.
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Affiliation(s)
- Juliana Pereira Lyon
- Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
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