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Juchem CF, Corbellini VA, Horst A, Heidrich D. Infrared spectroscopy combined with chemometrics in transflectance mode: An alternative approach in the photodiagnosis of COVID-19 using saliva. Spectrochim Acta A Mol Biomol Spectrosc 2024; 312:124066. [PMID: 38428213 DOI: 10.1016/j.saa.2024.124066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 02/14/2024] [Accepted: 02/19/2024] [Indexed: 03/03/2024]
Abstract
The Coronavirus Disease 2019 (COVID-19) pandemic, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has required the search for sensitive, rapid, specific, and lower-cost diagnostic methods to meet the high demand. The gold standard method of laboratory diagnosis is real-time reverse transcription polymerase chain reaction (RT-PCR). However, this method is costly and results can take time. In the literature, several studies have already described the potential of Fourier transform infrared spectroscopy (FTIR) as a tool in the biomedical field, including the diagnosis of viral infections, while being fast and inexpensive. In view of this, the objective of this study was to develop an FTIR model for the diagnosis of COVID-19. For this analysis, all private clients who had performed a face-to-face collection at the Univates Clinical Analysis Laboratory (LAC Univates) within a period of six months were invited to participate. Data from clients who agreed to participate in the study were collected, as well as nasopharyngeal secretions and a saliva sample. For the development of models, the RT-PCR result of nasopharyngeal secretions was used as a reference method. Absorptions with high discrimination (p < 0.001) between GI (28 patients, RT-PCR test positive to SARS-CoV-2 virus) and GII (173 patients who did not have the virus detected in the test) were most relevant at 3512 cm-1, 3385 cm-1 and 1321 cm-1 after 2nd derivative data transformation. To carry out the diagnostic modeling, chemometrics via FTIR and Discriminant Analysis of Orthogonal Partial Least Squares (OPLS-DA) by salivary transflectance mode with one latent variable and one orthogonal signal correction component were used. The model generated predictions with 100 % sensitivity, specificity and accuracy. With the proposed model, in a single application of an individual's saliva in the FTIR equipment, results related to the detection of SARS-CoV-2 can be obtained in a few minutes of spectral evaluation.
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Affiliation(s)
- Calebe Fernando Juchem
- Postgraduate Program in Medical Sciences, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brazil
| | - Valeriano Antonio Corbellini
- Postgraduate Program in Health Promotion, Postgraduate Program in Environmental Technology, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, RS, Brazil
| | - Andréa Horst
- Life Sciences Center, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brazil
| | - Daiane Heidrich
- Postgraduate Program in Medical Sciences, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brazil; Postgraduate Program in Biotechnology, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brazil.
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Rodrigues KF, Heidrich D, Fensterseifer F, Roso MT, Bruxel F, Ethur EM, Hoehne L, de Freitas EM. Chemical characterization and antimicrobial activity of Baccharis vulneraria Baker essential oil against strains of microorganisms that cause cutaneous infections. Nat Prod Res 2024; 38:1647-1651. [PMID: 37203185 DOI: 10.1080/14786419.2023.2214840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 05/08/2023] [Indexed: 05/20/2023]
Abstract
Baccharis vulneraria Baker is used popularly for the treatment of skin infections. So, this study aimed investigate the antimicrobial activity and chemical characterization of the essential oil (EO) against microorganisms that cause cutaneous infections. The EO was analyzed by GC-MS. The antimicrobial test was performed using the serial microdilution method, and the antimicrobial activity was determined by the minimum inhibitory concentration against Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, Pseudomonas aeruginosa, Candida albicans, Trichophyton interdigitale, Trichophyton rubrum, Fusarium solani and Fusarium oxysporum within the 32-0.0625 mg/mL concentration range. Were identified 31 EO compounds. Its major compounds are bicyclogermacrene, trans-cadin-1,4-diene, β-caryophyllene, and germacrene A. EO showed antifungal action against T. rubrum and T. interdigitale (2 and 4 mg/mL MIC, respectively). The growth of C. albicans, at 4 mg/mL, decreased by 50% compared to control. The oil had no significant potential for other microorganisms at the selected concentrations.
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Affiliation(s)
| | | | | | | | | | | | - Lucélia Hoehne
- Universidade do Vale do Taquari - Univates, Lajeado, Brazil
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Koehler A, de Moraes PC, Heidrich D, Scroferneker ML, Ferrão MF, Corbellini VA. Prediction of melanin content of Fonsecaea pedrosoi using Fourier transform infrared spectroscopy (FTIR) and chemometrics. Spectrochim Acta A Mol Biomol Spectrosc 2024; 310:123945. [PMID: 38295590 DOI: 10.1016/j.saa.2024.123945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/05/2023] [Accepted: 01/21/2024] [Indexed: 02/02/2024]
Abstract
Fungal melanin contributes to the survival and virulence of pathogenic fungi, such as Fonsecaea pedrosoi, which is responsible for causing chromoblastomycosis. The objective of this study was to employ Fourier transform infrared spectroscopy (FTIR) to predict the melanin content of F. pedrosoi. The melanin content, in percentage, was previously determined using gravimetry for twenty-six clinical isolates. Quintuplicate spectra of each isolate were obtained using attenuated total reflection (ATR) within the range of 4000 to 650 cm-1. To predict the melanin content, modeling was performed using partial least squares regression (PLS) in the region 1800 - 750 cm-1. Two models were tested: PLS and successive projections algorithms for interval selection in partial least squares (iSPA-PLS). The best modeling results were achieved using iSPA-PLS with one factor. The calibration set exhibited a determination coefficient (R2) of 0.9745 and a root mean square error of cross-validation (RMSECV) of 0.0977. In the prediction set, the R2 value was 0.9711, and the root mean square error of prediction (RMSEP) was 0.0999. Modeling with FTIR and multivariate calibration provides a valuable means of predicting fungal melanin content, which is simpler and more robust, thereby contributing to the advancement of this field of study.
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Affiliation(s)
- Alessandra Koehler
- Postgraduate Program of Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, CEP 90035-003, Brazil
| | - Paulo Cezar de Moraes
- Postgraduate Program of Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, CEP 90035-003, Brazil; Department of Sanitary Dermatology, Sanitary Dermatology Outpatient Clinic, State Health Secretariat of Rio Grande do Sul, Porto Alegre, CEP 90040-001, Brazil
| | - Daiane Heidrich
- Postgraduate Program of Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, CEP 90035-003, Brazil
| | - Maria Lúcia Scroferneker
- Postgraduate Program of Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, CEP 90035-003, Brazil; Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul - UFRGS, Porto Alegre, CEP 90050-170, Brazil.
| | - Marco Flôres Ferrão
- Department of Inorganic Chemistry, Chemistry Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, CEP 91501-970, Brazil; Instituto Nacional de Ciência e Tecnologia-Bioanalítca (INCT-Bioanalítica), Cidade Universitária, Zeferino Vaz s/n, Campinas, CEP 13083-970, Brazil.
| | - Valeriano Antonio Corbellini
- Department of Sciences, Humanities and Education, Postgraduate Program in Health Promotion, Postgraduate Program in Environmental Technology, Universidade de Santa Cruz do Sul - UNISC, Santa Cruz do Sul, CEP 96815-900, Brazil.
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Koehler A, Ribeiro AC, Pagani DM, Vettorato R, Magagnin CM, Stopiglia CDO, Heidrich D, Scroferneker ML. Molecular identification and antifungal susceptibility of 75 clinical isolates of Trichophyton spp. from southern Brazil. J Mycol Med 2021; 31:101201. [PMID: 34474264 DOI: 10.1016/j.mycmed.2021.101201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 08/08/2021] [Accepted: 08/23/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND Dermatophytoses affect more than 20% of the world's population and is caused by filamentous fungi, mainly of the genus Trichophyton. The species identification through microscopic direct examination and culture methods is challenging, with molecular presenting high sensitivity and specificity. Although there are several therapy options for dermatophyte infections, treatment failures and antifungal resistance are growing concerns. OBJECTIVE This study aimed to identify clinical isolates of Trichophyton spp. from southern Brazil using molecular methods and determine their in-vitro antifungal susceptibility. MATERIAL AND METHODS Seventy-five isolates were identified through sequencing of the ITS region. The exposure to seven antifungals drugs was performed according to protocol M28-A2 of the Clinical and Laboratory Standards Institute (CLSI). RESULTS Sixty-one isolates (81%) were identified as T. interdigitale, which differs from the epidemiological data present in the literature. Thirteen isolates were identified as T. rubrum and one as T. tonsurans. Terbinafine was the most effective antifungal, followed by itraconazole and voriconazole, which is in accordance with the results reported in previous studies. CONCLUSIONS The use of molecular methods to identify Trichophyton spp. clinical isolates and the performance of susceptibility tests are relevant to epidemiological data, identification of the emergence of antifungal resistance, and to help to translate the in-vitro antifungal susceptibility results into clinical practice.
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Affiliation(s)
- Alessandra Koehler
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul. Rua Ramiro Barcelos, 2400 - CEP, 90035-003, Porto Alegre - RS, Brasil
| | - Amanda Carvalho Ribeiro
- Graduate Program in Pharmacy Universdade Federal do Rio Grande do Sul. Avenida Ipiranga, 2752 - CEP, 90610-000, Porto Alegre RS, Brasil
| | - Danielle Machado Pagani
- Postgraduate Program in Agricultural and Environmental Microbiology, Universidade do Rio Grande do Sul. Universidade Federal do Rio Grande do Sul. Rua Sarmento Leite, 500 - CEP 90050-170, Porto Alegre RS, Brasil
| | - Rodrigo Vettorato
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul. Rua Ramiro Barcelos, 2400 - CEP, 90035-003, Porto Alegre - RS, Brasil
| | - Cibele Massotti Magagnin
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul. Rua Ramiro Barcelos, 2400 - CEP, 90035-003, Porto Alegre - RS, Brasil
| | - Cheila Denise Ottonelli Stopiglia
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul. Rua Ramiro Barcelos, 2400 - CEP, 90035-003, Porto Alegre - RS, Brasil
| | - Daiane Heidrich
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul. Rua Ramiro Barcelos, 2400 - CEP, 90035-003, Porto Alegre - RS, Brasil
| | - Maria Lúcia Scroferneker
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul. Rua Ramiro Barcelos, 2400 - CEP, 90035-003, Porto Alegre - RS, Brasil; Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul. Rua Sarmento Leite, 500 - CEP 90050-170, Porto Alegre RS, Brasil.
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de Souza DS, Barth AI, Berté ALW, Bizarro GL, Heidrich D, da Silva GL, Johann L, Maciel MJ. Evaluation of the activity of filamentous fungi isolated from soils of the Pampa biome applied in the biological control of Tetranychus urticae (Acari: Tetranychidae) and Polyphagotarsonemus latus (Acari: Tarsonemidae). Exp Appl Acarol 2021; 85:19-30. [PMID: 34410555 DOI: 10.1007/s10493-021-00651-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 08/06/2021] [Indexed: 06/13/2023]
Abstract
Tetranychus urticae Koch and Polyphagotarsonemus latus Banks are mite species considered capable of attaining pest levels, damaging a range of agricultural crops. The Pampa biome is characterized by the high biodiversity it houses, particularly microbial diversity, which highlights its potential for developing microorganisms that can provide biological control of arthropods. The aim of this study was to evaluate the activity of four fungal isolates from the soil of the Pampa biome in the biological control of T. urticae (females and eggs) and P. latus (females). Experiments consisted of isolating and identifying fungal isolates for spore quantification and aspersion at 108, 106, and 104 spores/mL concentrations in arenas containing T. urticae females and eggs, and P. latus females, separately. Results indicated that only three isolates (Aspergillus brunneoviolaceus, Clonostachys chloroleuca, and Penicillium adametzii) showed high control of T. urticae females, yet they did not exhibit any control of T. urticae eggs and P. latus females. Therefore, the present study confirms the viability of some of these fungi as biological control agents of mites, which implies the importance of new prospects with other fungal species, considering the richness of resources in the Pampa biome, or even the need to test higher concentrations and other variables using the microorganisms of the present study.
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Affiliation(s)
| | | | | | | | - Daiane Heidrich
- Programa de Pós-Graduação em Ciências Médicas (PPGCM) e Programa de Pós-Graduação em Biotecnologia (PPGBiotec) of Universidade do Vale do Taquari, Univates, Lajeado, RS, 95914-014, Brazil
| | - Guilherme Liberato da Silva
- Programa de Pós-Graduação em Sistemas Ambientais Sustentáveis (PPGSAS), da Universidade do Vale do Taquari, Univates, Lajeado, RS, 95914-014, Brazil
| | - Liana Johann
- Programa de Pós-Graduação em Sistemas Ambientais Sustentáveis (PPGSAS), da Universidade do Vale do Taquari, Univates, Lajeado, RS, 95914-014, Brazil
| | - Mônica Jachetti Maciel
- Programa de Pós-Graduação em Sistemas Ambientais Sustentáveis (PPGSAS), da Universidade do Vale do Taquari, Univates, Lajeado, RS, 95914-014, Brazil.
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Cordeiro SG, Ziem R, Schweizer YA, Costa B, Kuhn D, Haas P, Weber AC, Heidrich D, Ethur EM, Steffens C, Hoehne L. Degradation of micropollutant cephalexin by ultraviolet (UV) and assessment of residual antimicrobial activity of transformation products. Water Sci Technol 2021; 84:374-383. [PMID: 34312344 DOI: 10.2166/wst.2021.170] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Cephalexin (CEX) is an antibiotic commonly used to treat bacterial infections in humans and animals. However, it is also a micropollutant. Thus, this study evaluated the degradation of CEX using ultraviolet irradiation (UV-C) and analyzed the by-products as well as their residual antimicrobial activity. A reactor with a mercury vapor lamp was used for the degradation. Irradiated CEX solutions were collected over a period of 4 hours and analyzed using high-performance liquid chromatography coupled with mass spectrometry. For the residual antimicrobial activity the susceptibility test was performed using Staphylococcus aureus and Escherichia coli microorganisms by broth microdilution. It was found that CEX, after treatment, generated a metabolite with a mass of 150 m/z in 15 min. A four- and eightfold increase in the minimum inhibitory concentration of the drug against S. aureus and E. coli could be observed, respectively, after 20 min. Therefore, this treatment proved to be effective in the degradation of CEX, being able to degrade 81% of the initial molecule of the drug in 20 min. Furthermore, the antimicrobial activity of the CEX solution decreased as the irradiation time increased, indicating loss of antimicrobial function of the initial CEX molecule and the resulting by-products.
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Affiliation(s)
- Sabrina Grando Cordeiro
- Programa de Pós-Graduação em Biotecnologia - Univates, Avenida Avelino Talini, 171, Lajeado, Rio Grande do Sul, ZIP CODE: 95914-014, Brazil
| | - Rafaela Ziem
- Programa de Pós-Graduação em Biotecnologia - Univates, Avenida Avelino Talini, 171, Lajeado, Rio Grande do Sul, ZIP CODE: 95914-014, Brazil
| | - Ytan Andreine Schweizer
- Programa de Pós-Graduação em Biotecnologia - Univates, Avenida Avelino Talini, 171, Lajeado, Rio Grande do Sul, ZIP CODE: 95914-014, Brazil
| | - Bruna Costa
- Programa de Pós-Graduação em Biotecnologia - Univates, Avenida Avelino Talini, 171, Lajeado, Rio Grande do Sul, ZIP CODE: 95914-014, Brazil
| | - Daniel Kuhn
- Programa de Pós-Graduação em Biotecnologia - Univates, Avenida Avelino Talini, 171, Lajeado, Rio Grande do Sul, ZIP CODE: 95914-014, Brazil
| | - Peterson Haas
- Programa de Pós-Graduação em Biotecnologia - Univates, Avenida Avelino Talini, 171, Lajeado, Rio Grande do Sul, ZIP CODE: 95914-014, Brazil
| | - Ani Caroline Weber
- Programa de Pós-Graduação em Biotecnologia - Univates, Avenida Avelino Talini, 171, Lajeado, Rio Grande do Sul, ZIP CODE: 95914-014, Brazil
| | - Daiane Heidrich
- Programa de Pós-Graduação em Biotecnologia - Univates, Avenida Avelino Talini, 171, Lajeado, Rio Grande do Sul, ZIP CODE: 95914-014, Brazil
| | - Eduardo Miranda Ethur
- Programa de Pós-Graduação em Biotecnologia - Univates, Avenida Avelino Talini, 171, Lajeado, Rio Grande do Sul, ZIP CODE: 95914-014, Brazil
| | - Clarice Steffens
- Universidade Regional Integrada do Alto Uruguai e das Missões, Campus Erechim. Avenida Sete de Setembro, 1621 - Fátima, Erechim, Rio Grande do Sul, ZIP CODE: 99709-910, Brazil
| | - Lucélia Hoehne
- Programa de Pós-Graduação em Biotecnologia - Univates, Avenida Avelino Talini, 171, Lajeado, Rio Grande do Sul, ZIP CODE: 95914-014, Brazil
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Heidrich D, Koehler A, Ramírez-Castrillón M, Pagani DM, Ferrão MF, Scroferneker ML, Corbellini VA. Rapid classification of chromoblastomycosis agents genera by infrared spectroscopy and chemometrics supervised by sequencing of rDNA regions. Spectrochim Acta A Mol Biomol Spectrosc 2021; 254:119647. [PMID: 33744705 DOI: 10.1016/j.saa.2021.119647] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 06/12/2023]
Abstract
Chromoblastomycosis (CBM) is a skin and subcutaneous infection caused by species of seven fungal genera. Identification of CBM species is performed by DNA sequencing of one or more genes, which becomes a time-consuming work. Fourier Transform Infrared Spectroscopy (FTIR) has been used for the identification of other microorganisms, however, only one CBM genus was evaluated by FTIR analysis to date. Therefore, the study is aimed to differentiate the CBM agents for identification at genera level using FTIR supervised by Internal Transcribed Spacer (ITS) rDNA region. Seventy-seven isolates of the main five CBM genera were prepared for Attenuated Total Reflection FTIR (ATR-FTIR) with a new methodology using slices of dry fungus in glass fixing-modeling proposed in this study. The algorithm Hierarchical Cluster Analysis (HCA) was used to analyze the differences and similarities between species through the spectra. Orthogonal Partial Least Square Discriminant Analysis (OPLS-DA) allowed to correctly classify all samples of five CBM genera. The ATR-FTIR/OPLS-DA models highlighted important contributions of regions attributed to NH and OH stretching, amide I of proteins, polysaccharides bands and fingerprint region for the complete differentiation of the genera investigated. Thus, FTIR can be a fast and inexpensive alternative for identification of CBM agents.
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Affiliation(s)
- Daiane Heidrich
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2400, CEP: 90035-003 Porto Alegre, RS, Brazil
| | - Alessandra Koehler
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2400, CEP: 90035-003 Porto Alegre, RS, Brazil
| | - Mauricio Ramírez-Castrillón
- Postgraduate Program in Molecular and Cellular Biology, Biotechnology Center, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500, CEP: 91501-970 Porto Alegre, RS, Brazil.
| | - Danielle Machado Pagani
- Postgraduate Program in Agricultural and Environmental Microbiology, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500, CEP: 90050-170 Porto Alegre, RS, Brazil
| | - Marco Flores Ferrão
- Department of Inorganic Chemistry, Chemistry Institute, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves 9500, CEP: 91501-970 Porto Alegre, RS, Brazil.
| | - Maria Lúcia Scroferneker
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2400, CEP: 90035-003 Porto Alegre, RS, Brazil; Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500, CEP: 90050-170 Porto Alegre, RS, Brazil.
| | - Valeriano Antonio Corbellini
- Department of Sciences, Humanities and Education, Postgraduate Program in Health Promotion, Postgraduate Program in Environmental Technology, Universidade de Santa Cruz do Sul, Avenida Independência, 2293, CEP: 96815-900 Santa Cruz do Sul, RS, Brazil.
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Koehler A, Heidrich D, Pagani DM, Corbellini VA, Scroferneker ML. Melanin and chromoblastomycosis agents: Characterization, functions, and relation with antifungals. J Basic Microbiol 2021; 61:203-211. [PMID: 33576034 DOI: 10.1002/jobm.202000664] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/23/2020] [Accepted: 12/28/2020] [Indexed: 12/23/2022]
Abstract
Melanins are a diverse group of dark pigments with similar properties. In fungi, the most studied is the dihydroxynaphtalene (DHN)-melanin, present in several species including all the chromoblastomycosis agents, a chronic, disabling, and recalcitrant subcutaneous mycosis. It is synthesized in a pathway known as the pentaketide pathway, which has the agrochemical tricyclazole as an inhibitor, widely used in in vitro studies because it does not prevent the growth of fungi. There are different methodologies for qualitative and quantitative analyses of DHN-melanin, which made it possible to discover its important structural and antioxidant functions, with melanin acting as a protective factor against the host's immune system. Also, it can interact with some of the main antifungals of medical interest, reducing its activity and the susceptibility of fungi to these agents. This review aims to discuss the aspects of DHN-melanin, focusing on chromoblastomycosis, bringing the main findings of the published scientific studies, and highlighting the need for further research to understand this important fungal pathogenicity and a virulence factor.
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Affiliation(s)
- Alessandra Koehler
- Department of Internal Medicine, Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Daiane Heidrich
- Department of Internal Medicine, Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Danielle M Pagani
- Department of Microbiology, Postgraduate Program in Agricultural and Environmental Microbiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Valeriano A Corbellini
- Department of Chemistry and Physics, Postgraduate Program in Health Promotion, Postgraduate Program in Environmental Technology, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, Brazil
| | - Maria L Scroferneker
- Department of Internal Medicine, Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Department of Microbiology, Immunology, and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Koehler A, Corbellini VA, Heidrich D, Scroferneker ML. Prediction of itraconazole minimum inhibitory concentration for Fonsecaea pedrosoi using Fourier Transform Infrared Spectroscopy (FTIR) and chemometrics. PLoS One 2020; 15:e0243231. [PMID: 33264365 PMCID: PMC7710028 DOI: 10.1371/journal.pone.0243231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 11/17/2020] [Indexed: 11/18/2022] Open
Abstract
Fonsecaea pedrosoi is one of the main agents of chromoblastomycosis, a chronic subcutaneous mycosis. Itraconazole (ITC) is the most used antifungal in its treatment, however, in vitro antifungal susceptibility tests are important to define the best therapy. These tests are standardized by the Clinical and Laboratory Standards Institute (CLSI), but these protocols have limitations such as the high complexity, cost and time to conduct. An alternative to in vitro susceptibility test, which overcomes these limitations, is FTIR. This study determined the minimum inhibitory concentration (MIC) of itraconazole for F. pedrosoi, using FTIR and chemometrics. The susceptibility to ITC of 36 strains of F. pedrosoi was determined according to CLSI and with the addition of tricyclazole (TCZ), to inhibit 1,8-dihydroxynaphthalene (DHN)-melanin biosynthesis. Strains were grown in Sabouraud agar and prepared for Attenuated Total Reflection (ATR)/FTIR. Partial least squares (PLS) regression was performed using leave-one-out cross-validation (by steps of quintuplicates), then tested on an external validation set. A coefficient of determination (R²) higher than 0.99 was obtained for both the MIC-ITC and MIC-ITC+TCZ ATR/PLS models, confirming a high correlation of the reference values with the ones predicted using the FTIR spectra. This is the first study to propose the use of FTIR and chemometric analyses according to the M38-A2 CLSI protocol to predict ITC MICs of F. pedrosoi. Considering the limitations of the conventional methods to test in vitro susceptibility, this is a promising methodology to be used for other microorganisms and drugs.
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Affiliation(s)
- Alessandra Koehler
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Valeriano Antonio Corbellini
- Department of Sciences, Humanities and Education, Postgraduate Program in Health Promotion, Postgraduate Program in Environmental Technology, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, Rio Grande do Sul, Brazil
- * E-mail:
| | - Daiane Heidrich
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Maria Lúcia Scroferneker
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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Vettorato R, Heidrich D, Eidt LM, Pagani DM, Ribeiro AC, Dallé da Rosa P, Vettorato G, Amaro TG, Scroferneker ML. Onychomycosis caused by Arthrinium arundinis in leprosy patient: Case report. Med Mycol Case Rep 2020; 30:19-21. [PMID: 33024655 PMCID: PMC7527612 DOI: 10.1016/j.mmcr.2020.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 08/31/2020] [Accepted: 09/07/2020] [Indexed: 12/02/2022] Open
Abstract
We report a case of a 56-year-old Brazilian woman, with relapsing lepromatous leprosy, and onychomycosis caused by a non-dermatophyte filamentous fungi. The pathogenic fungi was identified as Arthrinium arundinis and treated with chemical abrasion of the nail with 40% urea and application of terbinafine cream. Onychomycosis caused by Arthrinium species is rare, and this is the second reported case.
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Affiliation(s)
- Rodrigo Vettorato
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2400, 2nd floor, Porto Alegre, CEP: 90035-003, Brazil.,Dermatology Service of Complexo Hospitalar Santa Casa de Misericórdia de Porto Alegre, Rua Professor Annes Dias - 135, Porto Alegre, CEP: 90020-090, Brazil
| | - Daiane Heidrich
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2400, 2nd floor, Porto Alegre, CEP: 90035-003, Brazil
| | - Letícia Maria Eidt
- Ambulatory of Sanitary Dermatology of Porto Alegre, Av. João Pessoa, 1327, Porto Alegre, CEP: 90040-001, Brazil
| | - Danielle Machado Pagani
- Postgraduate Program in Agricultural and Environmental Microbiology, ICBS, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500 - 210, Porto Alegre, CEP: 90050170, Brazil
| | - Amanda Carvalho Ribeiro
- Department of Microbiology, ICBS, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500, Porto Alegre, CEP: 90050-170, Brazil
| | - Priscila Dallé da Rosa
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2400, 2nd floor, Porto Alegre, CEP: 90035-003, Brazil
| | - Gerson Vettorato
- Dermatology Service of Complexo Hospitalar Santa Casa de Misericórdia de Porto Alegre, Rua Professor Annes Dias - 135, Porto Alegre, CEP: 90020-090, Brazil
| | - Taís Guarienti Amaro
- Dermatology Service of Complexo Hospitalar Santa Casa de Misericórdia de Porto Alegre, Rua Professor Annes Dias - 135, Porto Alegre, CEP: 90020-090, Brazil
| | - Maria Lúcia Scroferneker
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2400, 2nd floor, Porto Alegre, CEP: 90035-003, Brazil.,Department of Microbiology, ICBS, Universidade Federal do Rio Grande do Sul, Rua Sarmento Leite, 500, Porto Alegre, CEP: 90050-170, Brazil
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Kuhn D, Ziem R, Scheibel T, Buhl B, Vettorello G, Pacheco LA, Heidrich D, Kauffmann C, de Freitas EM, Ethur EM, Hoehne L. Antibiofilm activity of the essential oil of Campomanesia aurea O. Berg against microorganisms causing food borne diseases. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.03.079] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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12
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da Silva GL, Esswein IZ, Heidrich D, Dresch F, Maciel MJ, Pagani DM, Valente P, Scroferneker ML, Johann L, Ferla NJ, da Silva OS. Population growth of the stored product pest Tyrophagus putrescentiae (Acari: Acaridae) on environmentally and medically important fungi. Exp Appl Acarol 2019; 78:49-64. [PMID: 31076973 DOI: 10.1007/s10493-019-00370-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 05/07/2019] [Indexed: 06/09/2023]
Abstract
The stored food mite Tyrophagus putrescentiae (Schrank) (Acari: Acaridae) has been associated with the presence of several fungal species. The aims of this work were to evaluate T. putrescentiae population growth associated to environmental and medically important fungal species to determine on which fungal species populations of T. putrescentiae performs best, and to evaluate their ability to disperse each fungal species. First, 24 fungal species were inoculated separately in Petri dishes containing Sabouraud agar medium. One week after inoculation, 50 mites were added to each plate. On the 28th evaluation day, mites and eggs were counted in each plate, and 50 mites randomly collected from each replicate were transferred to new plates containing only Sabouraud agar medium. Then, mites, eggs, and fungal population were evaluated in each plate on day 28 again. The highest population increases were on Trichophyton mentagrophytes, Alternaria sp., Microsporum gypseum, and Aspergillus chevalieri. With Fusarium guttiforme and the medically important fungi Microsporum canis, M. gypseum, T. mentagrophytes, and Sporothrix sp., mites were observed to feed on whole mycelium. Only eight fungal species were dispersed by T. putrescentiae to the new Petri dishes: Aspergillus clavatus, Candida tropicalis, Candida albicans, Fusarium guttiforme, Hyphopichia burtonii, Penicillium citrinum, Rhizophus azygosporus, and Trichophyton mentagrophytes. The best performance of T. putrescentiae was found feeding on F. guttiforme, P. citrinum, and T. mentagrophytes. In conclusion, T. putrescentiae successfully used fungi as a food source, and it proved to be an important tool for disseminating both environmental and medically important fungi.
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Affiliation(s)
- Guilherme Liberato da Silva
- Laboratório de Acarologia Tecnovates, Univates - Universidade do Vale do Taquari, Lajeado, RS, 95914-014, Brazil.
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil.
| | - Isadora Zanatta Esswein
- Laboratório de Acarologia Tecnovates, Univates - Universidade do Vale do Taquari, Lajeado, RS, 95914-014, Brazil
| | - Daiane Heidrich
- Centro de Ciências Médicas, Univates - Universidade do Vale do Taquari, Lajeado, RS, 95914-014, Brazil
| | - Fabíola Dresch
- Laboratório de Acarologia Tecnovates, Univates - Universidade do Vale do Taquari, Lajeado, RS, 95914-014, Brazil
| | - Mônica Jachetti Maciel
- Laboratório de Acarologia Tecnovates, Univates - Universidade do Vale do Taquari, Lajeado, RS, 95914-014, Brazil
| | - Danielle Machado Pagani
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil
| | - Patrícia Valente
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil
| | - Maria Lúcia Scroferneker
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil
| | - Liana Johann
- Laboratório de Acarologia Tecnovates, Univates - Universidade do Vale do Taquari, Lajeado, RS, 95914-014, Brazil
| | - Noeli Juarez Ferla
- Laboratório de Acarologia Tecnovates, Univates - Universidade do Vale do Taquari, Lajeado, RS, 95914-014, Brazil
| | - Onilda Santos da Silva
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil
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13
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Merkel S, Heidrich D, Danilevicz CK, Scroferneker ML, Zanette RA. Drosophila melanogaster as a model for the study of Malassezia pachydermatis infections. Vet Microbiol 2018; 224:31-33. [DOI: 10.1016/j.vetmic.2018.08.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 08/21/2018] [Accepted: 08/21/2018] [Indexed: 12/01/2022]
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14
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da Silva Hellwig AH, Heidrich D, Zanette RA, Scroferneker ML. In vitro susceptibility of chromoblastomycosis agents to antifungal drugs: A systematic review. J Glob Antimicrob Resist 2018; 16:108-114. [PMID: 30266638 DOI: 10.1016/j.jgar.2018.09.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 08/15/2018] [Accepted: 09/20/2018] [Indexed: 11/30/2022] Open
Abstract
Chromoblastomycosis (CBM) is a chronic granulomatous mycosis caused by dematiaceous fungi that affects cutaneous and subcutaneous tissues. The standard antifungal drug for treatment is itraconazole, followed by terbinafine. However, cure rates vary from 15% to 80% when these drugs are used as monotherapy. A systematic review of the in vitro susceptibility of CBM agents to antifungal drugs, alone and in combination, was conducted using the Cochrane methodology. Forty-seven search terms were included in the PICOS method of searching electronic databases. The search resulted in 35 studies, of which 8 evaluated antifungal drugs in combination. Based on minimum inhibitory concentrations (MICs), posaconazole, terbinafine, itraconazole and voriconazole were, in descending order, the most effective antifungal drugs against CBM agents in vitro. In drug combination studies, only terbinafine-voriconazole and itraconazole-caspofungin showed 100% synergy for Fonsecaea pedrosoi, Exophiala jeanselmei and Phialophora verrucosa. However, none of the combinations studied showed antagonism.
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Affiliation(s)
- Alessandra Helena da Silva Hellwig
- Postgraduate Program in Medicine, Medical Sciences, Department of Microbiology, Immunology and Parasitology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Daiane Heidrich
- Postgraduate Program in Medicine, Medical Sciences, Department of Microbiology, Immunology and Parasitology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Postgraduate Program in Biotechnology, Universidade do Vale do Taquari, Lajeado, RS, Brazil
| | - Régis Adriel Zanette
- Postgraduate Program in Biological Sciences, Pharmacology and Therapeutics, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Maria Lúcia Scroferneker
- Postgraduate Program in Medicine, Medical Sciences, Department of Microbiology, Immunology and Parasitology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
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15
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Heidrich D, Corbellini VA, Mendes SDC, Fernandes EK, Lazzarotto L, Ribeiro AC, Zanette RA, Scroferneker ML. Melanin: Quantification and protection against oxidative stress in chromoblastomycosis agents. Med Mycol 2018; 57:260-263. [DOI: 10.1093/mmy/myy013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Daiane Heidrich
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | - Sandra Denise Camargo Mendes
- Santa Catarina State Agricultural Research and Rural Extension Agency (Epagri), Laboratory of Analysis of Wines and Derivatives, Experimental Station of Videira, Videira, SC, Brazil
| | - Elissa Kerli Fernandes
- Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Letícia Lazzarotto
- Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Postgraduate Program in Biological Sciences: Pharmacology and Therapeutics, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Amanda Carvalho Ribeiro
- Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Régis Adriel Zanette
- Postgraduate Program in Biological Sciences: Pharmacology and Therapeutics, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Maria Lúcia Scroferneker
- Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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16
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Heidrich D, Fortes CBB, Mallmann AT, Vargas CM, Arndt PB, Scroferneker ML. Rosemary, Castor Oils, and Propolis Extract: Activity Against Candida Albicans and Alterations on Properties of Dental Acrylic Resins. J Prosthodont 2018; 28:e863-e868. [PMID: 29322644 DOI: 10.1111/jopr.12746] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/05/2017] [Indexed: 12/24/2022] Open
Abstract
PURPOSE To evaluate the in vitro activity of 8% rosemary, 2% castor oils, and 12% propolis glycolic extract against Candida albicans, as well as the physical changes of properties in colorless and pink acrylic resins after immersion in these liquids. MATERIALS AND METHODS Colorimetric, roughness, and Knoop microhardness assays were evaluated in 25 specimens distributed into five groups (3 test groups and 2 control groups - distilled water and hypochlorite 1%), totaling five specimens per group for each acrylic resin (colorless and pink). The specimens were individually immersed for 30 minutes in 10 mL of these liquids, washed, and dried once a week. They were maintained in distilled water at 37°C between processes during all experiments. The analyses were performed before immersion and in the 4th and/or 12th month. In vitro, 18 acrylic resins were exposed to C. albicans and, after a process of 30 minutes in immersion in the five groups cited and oil vehicle control of vesicle (liquid Vaseline), the specimens were washed and incubated for 24 hours in 37°C. The growth was determined by colony counting. For comparisons between the groups in each trial and the disinfection test, paired Student's t-tests and ANOVA with post hoc Tukey were performed by the SPSS program, considering α = 0.05. RESULTS None of the liquids altered the microhardness, but all the natural compounds and 1% sodium hypochlorite (control) altered color and roughness after the 12th month of immersion in these agents. In the colorless specimens, 8% rosemary oil caused a color change similar to water, and less color and roughness alterations when compared to 2% castor oil and 1% sodium hypochlorite, respectively. There was no growth of yeast colonies after immersion in rosemary oil, propolis glycolic extract, and 1% sodium hypochlorite. CONCLUSION Eight percent rosemary oil has the potential to be used as an acrylic resin disinfectant.
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Affiliation(s)
- Daiane Heidrich
- Postgraduate Program in Medicine, Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Carmen Beatriz Borges Fortes
- Departament of Conservative Dentistry, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Aline Taís Mallmann
- Departament of Conservative Dentistry, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Clarissa Machado Vargas
- Departament of Conservative Dentistry, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Paula Borges Arndt
- Departament of Conservative Dentistry, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Maria Lúcia Scroferneker
- Postgraduate Program in Medicine, Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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17
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Vettorato R, Heidrich D, Fraga F, Ribeiro AC, Pagani DM, Timotheo C, Amaro TG, Vettorato G, Scroferneker ML. Sporotrichosis by Sporothrix schenckii senso stricto with itraconazole resistance and terbinafine sensitivity observed in vitro and in vivo: Case report. Med Mycol Case Rep 2017; 19:18-20. [PMID: 29204336 PMCID: PMC5711665 DOI: 10.1016/j.mmcr.2017.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 10/27/2017] [Indexed: 01/19/2023] Open
Abstract
We report a case of a patient with lymphocutaneous sporotrichosis in the right upper limb. The fungus was identified as Sporothrix schenckii senso stricto by calmodulin gene sequencing. The initial treatment was itraconazole (200 mg/day), but in vitro antifungal susceptibility demonstrated high resistant to this and another six antifungals, with exception to terbinafine. The lesions did not regress with itraconazole treatment. Thus, 500 mg/day of terbinafine was prescribed and clinical cure was obtained after four months.
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Affiliation(s)
- Rodrigo Vettorato
- Postgraduate Program in Medicine, Medical Sciences, Universidade Federal do Rio Grande do Sul, Brazil.,Dermatology Service of Complexo Hospitalar Santa Casa de Misericórdia de Porto Alegre, Brazil
| | - Daiane Heidrich
- Postgraduate Program in Medicine, Medical Sciences, Universidade Federal do Rio Grande do Sul, Brazil
| | - Fernanda Fraga
- Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul, Brazil
| | - Amanda Carvalho Ribeiro
- Postgraduate Program in Agricultural and Environmental Microbiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Danielle Machado Pagani
- Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul, Brazil.,Postgraduate Program in Agricultural and Environmental Microbiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Carina Timotheo
- Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul, Brazil.,Postgraduate Program in Agricultural and Environmental Microbiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Tais Guarienti Amaro
- Dermatology Service of Complexo Hospitalar Santa Casa de Misericórdia de Porto Alegre, Brazil
| | - Gerson Vettorato
- Dermatology Service of Complexo Hospitalar Santa Casa de Misericórdia de Porto Alegre, Brazil
| | - Maria Lúcia Scroferneker
- Postgraduate Program in Medicine, Medical Sciences, Universidade Federal do Rio Grande do Sul, Brazil.,Department of Microbiology, Immunology and Parasitology, ICBS, Universidade Federal do Rio Grande do Sul, Brazil
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18
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Rosa PD, Heidrich D, Corrêa C, Scroferneker ML, Vettorato G, Fuentefria AM, Goldani LZ. Genetic diversity and antifungal susceptibility of Fusarium isolates in onychomycosis. Mycoses 2017; 60:616-622. [PMID: 28657120 DOI: 10.1111/myc.12638] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 04/30/2017] [Accepted: 05/07/2017] [Indexed: 01/31/2023]
Abstract
Fusarium species have emerged as an important human pathogen in skin disease, onychomycosis, keratitis and invasive disease. Onychomycosis caused by Fusarium spp. The infection has been increasingly described in the immunocompetent and immunosuppressed hosts. Considering onychomycosis is a difficult to treat infection, and little is known about the genetic variability and susceptibility pattern of Fusarium spp., further studies are necessary to understand the pathogenesis and better to define the appropriate antifungal treatment for this infection. Accordingly, the objective of this study was to describe the in vitro susceptibility to different antifungal agents and the genetic diversity of 35 Fusarium isolated from patients with onychomycosis. Fusarium spp. were isolated predominantly from female Caucasians, and the most frequent anatomical location was the nail of the hallux. Results revealed that 25 (71.4%) of isolates belonged to the Fusarium solani species complex, followed by 10 (28.5%) isolates from the Fusarium oxysporum species complex. Noteworthy, the authors report the first case of Neocosmospora rubicola isolated from a patient with onychomycosis. Amphotericin B was the most effective antifungal agent against the majority of isolates (60%, MIC ≤4 μg/mL), followed by voriconazole (34.2%, MIC ≤4 μg/mL). In general, Fusarium species presented MIC values >64 μg/mL for fluconazole, itraconazole and terbinafine. Accurate pathogen identification, characterisation and susceptibility testing provide a better understanding of pathogenesis of Fusarium in onychomycosis.
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Affiliation(s)
- Priscila D Rosa
- Programa de Pós-graduação em Medicina: Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Daiane Heidrich
- Programa de Pós-graduação em Medicina: Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Carolina Corrêa
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Maria Lúcia Scroferneker
- Programa de Pós-graduação em Medicina: Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Gerson Vettorato
- Serviço de Dermatologia, do Hospital Santa Clara, Santa Casa de Porto Alegre, Porto Alegre, Brazil
| | - Alexandre M Fuentefria
- Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Luciano Z Goldani
- Programa de Pós-graduação em Medicina: Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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19
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Heidrich D, González GM, Pagani DM, Ramírez-Castrillón M, Scroferneker ML. Chromoblastomycosis caused by Rhinocladiella similis: Case report. Med Mycol Case Rep 2017; 16:25-27. [PMID: 28458993 PMCID: PMC5397130 DOI: 10.1016/j.mmcr.2017.04.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 03/31/2017] [Accepted: 04/05/2017] [Indexed: 02/07/2023] Open
Abstract
We report a case of chromoblastomycosis in lesions on the chest and foot. Itraconazole was chosen as the initial treatment for this patient, who was followed up for 8 months before becoming noncompliant. The pathogenic fungal species was identified as Rhinocladiella similis by ITS region sequencing. In vitro analyses indicate that the fungus was sensitive to posaconazole and itraconazole. This report presents R. similis as a new agent of chromoblastomycosis and raises the hypothesis that this species could be more resistant to some antifungals than R. aquaspersa.
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Affiliation(s)
- Daiane Heidrich
- Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul. Rua Ramiro Barcelos, 2400 − 2nd floor, Porto Alegre CEP: 90035-003, Brazil
| | - Gloria M. González
- Department of Microbiology, Facultad de Medicina, Universidad Autónoma de Nuevo León, Madero y Aguirre Pequeño, Col. Mitras Centro, Monterrey, N.L. C.P. 64460, Mexico
| | - Danielle M. Pagani
- Department of Microbiology, ICBS, Universidade Federal do Rio Grande do Sul. Rua Sarmento Leite, 500, Sala 210, Porto Alegre CEP: 90050-170, Brazil
| | - Mauricio Ramírez-Castrillón
- Department of Microbiology, ICBS, Universidade Federal do Rio Grande do Sul. Rua Sarmento Leite, 500, Sala 210, Porto Alegre CEP: 90050-170, Brazil
| | - Maria Lucia Scroferneker
- Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul. Rua Ramiro Barcelos, 2400 − 2nd floor, Porto Alegre CEP: 90035-003, Brazil
- Department of Microbiology, Facultad de Medicina, Universidad Autónoma de Nuevo León, Madero y Aguirre Pequeño, Col. Mitras Centro, Monterrey, N.L. C.P. 64460, Mexico
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20
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Gomes RR, Vicente VA, de Azevedo CMPS, Salgado CG, da Silva MB, Queiroz-Telles F, Marques SG, Santos DWCL, de Andrade TS, Takagi EH, Cruz KS, Fornari G, Hahn RC, Scroferneker ML, Caligine RB, Ramirez-Castrillon M, de Araújo DP, Heidrich D, Colombo AL, de Hoog GS. Molecular Epidemiology of Agents of Human Chromoblastomycosis in Brazil with the Description of Two Novel Species. PLoS Negl Trop Dis 2016; 10:e0005102. [PMID: 27893750 PMCID: PMC5125572 DOI: 10.1371/journal.pntd.0005102] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 10/11/2016] [Indexed: 12/13/2022] Open
Abstract
The human mutilating disease chromoblastomycosis is caused by melanized members of the order Chaetothyriales. To assess population diversity among 123 clinical strains of agents of the disease in Brazil we applied sequencing of the rDNA internal transcribed spacer region, and partial cell division cycle and β-tubulin genes. Strains studied were limited to three clusters divided over the single family Herpotrichiellaceae known to comprise agents of the disease. A Fonsecaea cluster contained the most important agents, among which F. pedrosoi was prevalent with 80% of the total set of strains, followed by 13% for F. monophora, 3% for F. nubica, and a single isolate of F. pugnacius. Additional agents, among which two novel species, were located among members of the genus Rhinocladiella and Cyphellophora, with frequencies of 3% and 1%, respectively. Chromoblastomycosis, a skin disease found among rural populations in tropical and subtropical regions, is caused by melanized fungi related to the black yeasts. The present study evaluates the species distribution among 123 clinical strains from endemic areas in Brazil based on multilocus sequence data, and describes two new agents of the disease which proved to be affiliated to Rhinocladiella and Cyphellophora.
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Affiliation(s)
- Renata R. Gomes
- Microbiology, Parasitology and Pathology Post-graduation Program, Department of Basic Pathology, Federal University of Paraná, Curitiba, PR, Brazil
- Department of Biological Science, State University of Parana/ Campus Paranaguá, Paranaguá, PR, Brazil
| | - Vania A. Vicente
- Microbiology, Parasitology and Pathology Post-graduation Program, Department of Basic Pathology, Federal University of Paraná, Curitiba, PR, Brazil
- * E-mail: (VAV); (GSdH)
| | | | - Claudio G. Salgado
- Dermato-Immunology Laboratory, Institute of Biological Sciences, Federal University of Para. Marituba, PA, Brazil
| | - Moises B. da Silva
- Dermato-Immunology Laboratory, Institute of Biological Sciences, Federal University of Para. Marituba, PA, Brazil
| | - Flávio Queiroz-Telles
- Microbiology, Parasitology and Pathology Post-graduation Program, Department of Basic Pathology, Federal University of Paraná, Curitiba, PR, Brazil
- Clinical Hospital of the Federal University of Paraná, Curitiba, PR, Brazil
| | - Sirlei G. Marques
- University Hospital of Federal University of Maranhão, Sao Luis, MA, Brazil
- Cedro Laboratories Maranhão, Sao Luis, MA, Brazil
| | | | - Tania S. de Andrade
- Department of Culture Collection, Adolfo Lutz Institute, São Paulo, SP, Brazil
| | - Elizabeth H. Takagi
- Department of Culture Collection, Adolfo Lutz Institute, São Paulo, SP, Brazil
| | - Katia S. Cruz
- National Institute of Amazonian Research, Manaus, Brazil
| | - Gheniffer Fornari
- Microbiology, Parasitology and Pathology Post-graduation Program, Department of Basic Pathology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Rosane C. Hahn
- Veterinary Laboratory of Molecular Biology, Faculty of Agronomy and Veterinary Medicine, Federal University of Mato Grosso, Cuiabá, MT, Brazil
| | - Maria L. Scroferneker
- Department of Microbiology, ICBS, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Rachel B. Caligine
- Postgraduate Program in Medicine and Biomedicine, Santa Casa de Belo Horizonte Hospital, MG, Brazil
| | - Mauricio Ramirez-Castrillon
- Postgraduate Program in Cellular and Molecular Biology, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Daniella P. de Araújo
- Dermato-Immunology Laboratory, Institute of Biological Sciences, Federal University of Para. Marituba, PA, Brazil
| | - Daiane Heidrich
- Postgraduate Program in Medicine, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Arnaldo L. Colombo
- Division of Infectious Diseases, Federal University of São Paulo, SP, Brazil
| | - G. S. de Hoog
- Microbiology, Parasitology and Pathology Post-graduation Program, Department of Basic Pathology, Federal University of Paraná, Curitiba, PR, Brazil
- Centraalbureau voor Schimmelcultures KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands
- * E-mail: (VAV); (GSdH)
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Rosa PDD, Heidrich D, Corrêa C, Scroferneker ML, Vettorato G, Fuentefria A, Goldani L. Antifungal susceptibility profiles of Onychomycosis caused by different species of Fusarium. Open Forum Infect Dis 2016. [DOI: 10.1093/ofid/ofw172.1345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - Daiane Heidrich
- Universidade Federal do Rio Grande do Sul, Porto Alegre, NJ, Brazil
| | - Caroline Corrêa
- Universidade Federal do Rio Grande do Sul, Porto Alegre, NJ, Brazil
| | | | - Gerson Vettorato
- Santa Casa de Misericordia de Porto Alegre, Porto Alegre, Brazil
| | | | - Luciano Goldani
- Internal Medicine, Infectious Diseases Unit, Hospital de Clinicas de Porto Alegre, Porto Alegre, Brazil
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Heidrich D, Daboit TC, Stopiglia CDO, Magagnin CM, Vetoratto G, Amaro TG, Scroferneker ML. SIXTEEN YEARS OF PITYRIASIS VERSICOLOR IN METROPOLITAN AREA OF PORTO ALEGRE, SOUTHERN BRAZIL. Rev Inst Med Trop Sao Paulo 2016; 57:277-80. [PMID: 26422149 PMCID: PMC4616910 DOI: 10.1590/s0036-46652015000400001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Pityriasis versicolor is the most common of the diseases caused by Malassezia yeasts. The aim of this study is to determine the prevalence of pityriasis versicolor and its etiological aspects in the metropolitan area of Porto Alegre, Brazil. A retrospective cross-sectional study with data from patients of a reference hospital from 1996 to 2011 was performed. Collected data included: date, age, gender, ethnicity, anatomical region of lesion and the direct mycological examination results. Among the positive results in the direct mycological examination, 5.8% (2,239) were positive for pityriasis versicolor. The angular coefficient (B) was -0.3%/year, showing a decrease over the years. The disease was more prevalent in men (7.1% of men versus 5.1% of women that underwent the direct mycological examination); younger age (median 31 years old); "pardo" and black people (3.7% more than expected in the sample); trunk (73.44% of the affected anatomic sites). Lesions in rare sites (groin, genitals, legs, feet and hands) were also observed in this study. In conclusion, due to the decrease in the prevalence of pityriasis versicolor, long-term epidemiological studies in the metropolitan area of Porto Alegre, Brazil, are needed to continue the monitoring of this disease.
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Affiliation(s)
- Daiane Heidrich
- Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, BR
| | | | | | | | - Gerson Vetoratto
- Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, RS, BR
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Heidrich D, Stopiglia CDO, Magagnin CM, Daboit TC, Vettorato G, Amaro TG, Scroferneker ML. SIXTEEN YEARS OF DERMATOMYCOSIS CAUSED BY Candida spp. IN THE METROPOLITAN AREA OF PORTO ALEGRE, SOUTHERN BRAZIL. Rev Inst Med Trop Sao Paulo 2016; 58:14. [PMID: 27007557 PMCID: PMC4804551 DOI: 10.1590/s1678-9946201658014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 08/27/2015] [Indexed: 01/19/2023] Open
Abstract
The yeasts of the genus Candida infect skin, nails, and mucous membranes of the gastrointestinal and the genitourinary tract. The aim of this study was to determine the prevalence of dermatomycoses caused by Candida spp., and their etiological aspects in the metropolitan area of Porto Alegre, Brazil. A retrospective study with data obtained from tertiary hospital patients, from 1996 to 2011, was performed. The analyzed parameters were date, age, gender, ethnicity, anatomical region of lesions, and the direct examination results. For all the statistical analyses, a = 0.05 was considered. Among positive results in the direct mycological examination, 12.5% of the total of 4,815 cases were positive for Candida spp. The angular coefficient (B) was -0.7%/ year, showing a decrease over the years. The genus Candida was more prevalent in women (15.9% of women versus 5.84% of men), and in addition, women were older than men (54 versus 47 years old, respectively). There was no difference between ethnic groups. The nails were more affected than the skin, with 80.37% of the infections in the nails (72.9% in fingernails and 7.47% in toenails). Our study corroborates the literature regarding the preference for gender, age, and place of injury. Moreover, we found a decrease in infection over the studied period.
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Affiliation(s)
- Daiane Heidrich
- Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil, , , ,
| | | | | | | | - Gerson Vettorato
- Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, RS, Brazil, ,
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Heidrich D, Garcia MR, Stopiglia CDO, Magagnin CM, Daboit TC, Vetoratto G, Schwartz J, Amaro TG, Scroferneker ML. Dermatophytosis: a 16-year retrospective study in a metropolitan area in southern Brazil. J Infect Dev Ctries 2015; 9:865-71. [DOI: 10.3855/jidc.5479] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 01/22/2015] [Accepted: 02/06/2015] [Indexed: 10/31/2022] Open
Abstract
Introduction: Dermatophytoses are considered a public health problem. The objectives of this study were to determine the evolution of their prevalence in the metropolitan area of Porto Alegre, Brazil, and to analyze the dermatophyte species distribution according to body site and demographic characteristics of the patients. Methodology: This work was a retrospective analysis of data from patients attending a tertiary care hospital during 1996–2011. Results: There were 9,048 cases with cultures positive for dermatophytes. Trichophyton rubrum occurred in 59.6% of the cases, followed by Trichophyton interdigitale (34%), Microsporum canis (2.6%), Epidermophyton floccosum (1.5%), Microsporum gypseum (1.3%), and Trichophyton tonsurans (0.9%). The angular coefficients for T. interdigitale, E. floccosum, T. rubrum, and M. canis were +1.119, +0.211, -0.826 and -0.324% per year, respectively. Males presented higher prevalence of infection (79.3% versus 53.9%). Tinea unguium occurred in 48.5% of the cases, followed by tinea pedis (33.1%). T. rubrum was the predominant species in all regions of the body except the scalp, where M. canis was responsible for 75% of the cases. Conclusion: Monitoring of the evolution of dermatophytosis tracks changes in prevalence over the years and may assist practical measures for the public health control of this disease.
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Ottonelli Stopiglia CD, Magagnin CM, Castrillón MR, Mendes SDC, Heidrich D, Valente P, Scroferneker ML. Antifungal susceptibilities and identification of species of the Sporothrix schenckii complex isolated in Brazil. Med Mycol 2014; 52:56-64. [PMID: 23964828 DOI: 10.3109/13693786.2013.818726] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Sporotrichosis is a subacute or chronic mycosis caused worldwide by the dimorphic species complex, Sporothrix schenckii. We studied 85 isolates recovered in Brazil to verify their identification and evaluate their in vitro antifungal susceptibility patterns. Based on phenotypic tests (microscopic features, ability to grow at 30°C and 37°C, colony diameters, as well as assimilation of sucrose and raffinose) and molecular assays (amplification of a fragment of the calmodulin gene), the strains were identified as S. schenckii, S. brasiliensis and S. globosa, with a predominance of S. schenckii isolates. There was 37.7% disagreement between the phenotypic and genotypic identification methodologies. In general, terbinafine was the most active drug, followed by ketoconazole and itraconazole, and the less active fluconazole and voriconazole. Five isolates (one S. globosa and four S. schenckii) were found to be itraconazole-resistant strains but, in general, there were no differences in the in vitro antifungal susceptibility profiles among the Sporothrix species.
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Affiliation(s)
- Cheila Denise Ottonelli Stopiglia
- Programa de Pós-Graduação em Medicina: Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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Daboit TC, Massotti Magagnin C, Heidrich D, Czekster Antochevis L, Vigolo S, Collares Meirelles L, Alves K, Scroferneker ML. In vitrosusceptibility of chromoblastomycosis agents to five antifungal drugs and to the combination of terbinafine and amphotericin B. Mycoses 2013; 57:116-20. [DOI: 10.1111/myc.12111] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 06/24/2013] [Accepted: 06/26/2013] [Indexed: 11/30/2022]
Affiliation(s)
- Tatiane C. Daboit
- Postgraduate Program in Medicine: Medical Sciences; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
- Department of Microbiology, Immunology and Parasitology; ICBS; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Cibele Massotti Magagnin
- Postgraduate Program in Medicine: Medical Sciences; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
- Department of Microbiology, Immunology and Parasitology; ICBS; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Daiane Heidrich
- Postgraduate Program in Medicine: Medical Sciences; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
- Department of Microbiology, Immunology and Parasitology; ICBS; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Laura Czekster Antochevis
- Department of Microbiology, Immunology and Parasitology; ICBS; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Suelen Vigolo
- Department of Microbiology, Immunology and Parasitology; ICBS; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Lúcia Collares Meirelles
- Department of Microbiology, Immunology and Parasitology; ICBS; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Karine Alves
- Department of Microbiology, Immunology and Parasitology; ICBS; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Maria L. Scroferneker
- Postgraduate Program in Medicine: Medical Sciences; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
- Department of Microbiology, Immunology and Parasitology; ICBS; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
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Stopiglia CDO, Heidrich D, Sorrentino JM, Vieira FJ, Landell MF, Valente P, Scroferneker ML. Susceptibility of species within theSporothrix schenckiicomplex to a panel of killer yeasts. J Basic Microbiol 2013; 54:578-84. [DOI: 10.1002/jobm.201200516] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 01/26/2013] [Indexed: 12/19/2022]
Affiliation(s)
- Cheila Denise Ottonelli Stopiglia
- Programa de Pós-Graduação em Medicina: Ciências Médicas; Universidade Federal do Rio Grande do Sul; Porto Alegre RS Brazil
- Departamento de Microbiologia, Imunologia e Parasitologia; ICBS, Universidade Federal do Rio Grande do Sul; Porto Alegre RS Brazil
| | - Daiane Heidrich
- Programa de Pós-Graduação em Medicina: Ciências Médicas; Universidade Federal do Rio Grande do Sul; Porto Alegre RS Brazil
| | - Julia Medeiros Sorrentino
- Departamento de Microbiologia, Imunologia e Parasitologia; ICBS, Universidade Federal do Rio Grande do Sul; Porto Alegre RS Brazil
| | - Fabiane Jamono Vieira
- Departamento de Microbiologia, Imunologia e Parasitologia; ICBS, Universidade Federal do Rio Grande do Sul; Porto Alegre RS Brazil
| | - Melissa Fontes Landell
- Centro de Biotecnologia; Universidade Federal do Rio Grande do Sul; Campus do Vale, Porto Alegre RS Brazil
| | - Patrícia Valente
- Departamento de Microbiologia, Imunologia e Parasitologia; ICBS, Universidade Federal do Rio Grande do Sul; Porto Alegre RS Brazil
| | - Maria Lúcia Scroferneker
- Programa de Pós-Graduação em Medicina: Ciências Médicas; Universidade Federal do Rio Grande do Sul; Porto Alegre RS Brazil
- Departamento de Microbiologia, Imunologia e Parasitologia; ICBS, Universidade Federal do Rio Grande do Sul; Porto Alegre RS Brazil
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Daboit TC, Magagnin CM, Heidrich D, Castrillón MR, Mendes SDC, Vettorato G, Valente P, Scroferneker ML. A case of relapsed chromoblastomycosis due to Fonsecaea monophora: antifungal susceptibility and phylogenetic analysis. Mycopathologia 2013; 176:139-44. [PMID: 23645135 DOI: 10.1007/s11046-013-9660-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 04/19/2013] [Indexed: 11/25/2022]
Abstract
Chromoblastomycosis is a chronic cutaneous and subcutaneous mycosis. The management of this infection continues to be challenging because there is no consensus on the therapeutic regimen. We report here a case of a 69-year-old male patient with cauliflower-like lesions on his left leg and foot. He had already been treated with itraconazole at a dose of 200 mg/day for 5 months, with mycological cure for all the affected areas. However, the lesions relapsed at both sites, and treatment with itraconazole was resumed at the dose previously used. Initially, direct mycological examination, cultural, and microculture slide observation were performed. Afterward, sequencing of the ITS1-5.8S rDNA-ITS2 region of the fungal DNA and evaluation of its susceptibility to antifungal agents alone and in combination were performed. In direct mycological examination, the presence of sclerotic cells was verified, and the fungus was identified as Fonsecaea based on cultural and microscopic examinations. Identification as Fonsecaea monophora was confirmed after sequencing of the ITS region and phylogenetic analysis. The isolate was susceptible to itraconazole and terbinafine. The combinations of amphotericin B and terbinafine and terbinafine and voriconazole were synergistic. The use of drugs for which the causative agent is susceptible to singly or in combination may be an alternative for the treatment of mycosis. Furthermore, the identification of the agent by molecular techniques is important for epidemiological purposes. To the best of our knowledge, this is the first case of relapsed chromoblastomycosis caused by F. monophora in Brazil.
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Affiliation(s)
- Tatiane Caroline Daboit
- Graduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2400-2º andar, Porto Alegre, Rio Grande do Sul, CEP 90035-003, Brazil,
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Stopiglia CDO, Marchese DP, Heidrich D, Sorrentino JM, Vieira FJ, Scroferneker ML. Comparison between two culture media for in vitro evaluation of antifungal susceptibility of the Sporothrix schenckii complex. An Bras Dermatol 2012; 87:561-5. [PMID: 22892769 DOI: 10.1590/s0365-05962012000400007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Accepted: 10/01/2011] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND The standard methodology for determining the antifungal sensitivity against the Sporothrix schenckii complex recommends the use of the 1640 Roswell Park Memorial Institute culture medium (RPMI) buffered with morpholinepropanolsulfonic acid (MOPS). However, while this is a high-cost medium which requires a laborious implementation and sterilization by filtration, the Sabouraud dextrose broth is a low-cost medium, widely used in mycology, sterilized by autoclave. OBJECTIVE To evaluate the performance of the Sabouraud dextrose broth culture medium as a substitute for the RPMI 1640-MOPS in determining the antifungal sensitivity of S. schenckii. METHODS Forty-eight clinical isolates were evaluated against five antifungal agents: itraconazole, ketoconazole, fluconazole, amphotericin B and terbinafine, using the method of broth microdilution advocated by the M38-A2 protocol of the Clinical and Laboratory Standards Institute. RESULTS There were no significant differences between the Minimum Inhibitory Concentrations obtained in the two culture media for all the antifungals, with the exception of the amphotericin B. Regarding this drug, the Minimum Inhibitory Concentration range obtained were wider for the Sabouraud dextrose broth than for the Roswell Park Memorial Institute morpholinepropanelsulfonic acid. CONCLUSIONS The Sabouraud dextrose broth showed potential to be used in the in vitro evaluation of the S. schenckii complex antifungal activity.
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Heidrich D, Stopiglia CDO, Senter L, Vetoratto G, Valente P, Scroferneker ML. Successful treatment of terbinafine in a case of sporotrichosis. An Bras Dermatol 2012; 86:S182-5. [PMID: 22068805 DOI: 10.1590/s0365-05962011000700047] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Accepted: 01/22/2011] [Indexed: 02/04/2023] Open
Abstract
Sporotrichosis is a chronic subacute infection caused by fungi belonging to the Sporothrix Complex. In the present clinical case, nasal sporotrichosis was treated with potassium iodide. This was unsuccessful, and the treatment was restarted with a combination of potassium iodide and itraconazole. This however resulted in a further recurrence of the infection. The mycological cultures were tested in vitro for antifungal activity to assist in treatment. Terbinafine, an antifungal drug, produced the best results and was therefore used for the rest of the treatment course, with no recurrence after two years of its completion. In addition, both cultures were compared using RAPD and different fragment patterns were observed. This indicated that the isolates were either different or indicated a microevolutionary process of this microorganism.
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Affiliation(s)
- Daiane Heidrich
- Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
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Magagnin CM, Stopiglia CDO, Vieira FJ, Heidrich D, Machado M, Vetoratto G, Lamb FM, Scroferneker ML. Antifungal susceptibility of dermatophytes isolated from patients with chronic renal failure. An Bras Dermatol 2012; 86:694-701. [PMID: 21987135 DOI: 10.1590/s0365-05962011000400011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Accepted: 09/17/2010] [Indexed: 03/19/2024] Open
Abstract
BACKGROUND The prevalence of dermatophytosis in the general population is high, particularly in patients with chronic renal failure. Treatment requires the use of topical and/or systemic antifungal drugs. The efficacy of antifungal agents for the treatment of dermatophytosis has yet to be evaluated. Studies evaluating the in vitro activity of antifungal agents are rare, particularly in filamentous fungi. OBJECTIVE To evaluate the susceptibility profile of different species of dermatophytes isolated from patients with chronic renal failure to nine antifungal drugs available on the market for the treatment of dermatophytosis. METHODS Twenty-six isolates of dermatophytes obtained from patients with chronic renal failure were analyzed with respect to their susceptibility to nine antifungal agents (ketoconazole, ciclopirox olamine, fluconazole, griseofulvin, itraconazole, miconazole, piroctone olamine, terbinafine and tioconazole), using the broth microdilution method proposed by the Clinical and Laboratory Standards Institute (CLSI) and adapted for dermatophytes. RESULTS Of the antifungal agents tested, the best results in terms of sensitivity were found with terbinafine and tioconazole, while the antifungal activity of fluconazole was found to be weak, particularly against strains of M. gypseum. Ciclopirox olamine, although less effective than terbinafine, also yielded satisfactory results. CONCLUSIONS In general, the sensitivity profile of the antifungal agents tested in this study was similar to results obtained in previous studies, confirming the need to determine which species is causing the dermatophytosis given that antifungal susceptibility varies from one species to another. Furthermore, the present findings show the importance of conducting in vitro sensitivity tests, since the sensitivity profile may differ among isolates of the same species.
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Landell MF, Stopiglia CDO, Billodre RG, Heidrich D, Sorrentino JM, Vainstein MH, Scroferneker ML, Valente P. Evaluation of the Origin of a Sample of Sporothrix Schenckii that Caused Contamination of a Researcher in Southern Brazil. Mycopathologia 2010; 171:203-7. [DOI: 10.1007/s11046-010-9361-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2009] [Accepted: 08/31/2010] [Indexed: 01/19/2023]
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Bölke M, Hallpap P, Heublein G, Heidrich D, Weiss C. Modelling propagation in cationic polymerization. Eur Polym J 1985. [DOI: 10.1016/0014-3057(85)90040-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Heidrich D, Volkmann D, Zurawski B. Silanol/Silanolat und Methanol/Methylat: Eine vergleichende Strukturcharakteristik aus ab-initio-Rechnungen. Z PHYS CHEM 1982. [DOI: 10.1515/zpch-1982-26333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Heidrich D, Volkmann D, Zurawski B. Silanol/Silanolat und Methanol/Methylat: Eine vergleichende Strukturcharakteristik aus ab-initio-Rechnungen. Z PHYS CHEM 1982. [DOI: 10.1515/zpch-1982-0133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Heidrich D, Grimmer M, Köhler HJ. Quantenchemische modellierung der potentialhyperfläche des äthylkations im bereich der klassischen und nichtklassischen strukturen. Tetrahedron 1976. [DOI: 10.1016/0040-4020(76)85045-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Grimmer M, Heidrich D, Köhler HJ, Scholz M. MO-Berechnungen an Heterocyclen. Z PHYS CHEM 1974. [DOI: 10.1515/zpch-1974-01126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Scholz M, Heidrich D. MO-Berechnungen an Heterocyclen, 3, Mitt.: Theoretische Untersuchung zur Anwendung kombinierter SCα,β-HMO-Verfahren auf Heterocyclen. Monatshefte für Chemie 1968. [DOI: 10.1007/bf00901208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Scholz M, Heidrich D. MO-Berechnungen an Heterocyclen, 1. Mitt.: Die Anwendung verschiedener SCα-Techniken auf pyrrol-und pyridinartige Heterocyclen. Monatshefte für Chemie 1967. [DOI: 10.1007/bf00899939] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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46
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Heidrich D. [Comparative studies with Bierbrauer's tetrathionate broth and selenite broth in the demonstration of salmonella in fecal samples of cattle and in bacteriologic meat control]. Dtsch Tierarztl Wochenschr (1946) 1963; 70:595-601. [PMID: 5896696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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