25 results on '"Almeida-Paes, Rodrigo"'
Search Results
2. A Review on Sporotrichosis and the Emergence of Sporothrix brasiliensis as a Pathogen
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Valdez, Alessandro F., Corrêa-Junior, Dario, Bonilla, Jhon Jhamilton Artunduaga, Zamith-Miranda, Daniel, Frases, Susana, Freitas, Dayvison Francis Saraiva, Almeida-Paes, Rodrigo, Nimrichter, Leonardo, and Nosanchuk, Joshua D.
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- 2023
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3. Single nucleotide polymorphisms and chromosomal copy number variation may impact the Sporothrix brasiliensis antifungal susceptibility and sporotrichosis clinical outcomes
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Teixeira, Marcus M, Almeida-Paes, Rodrigo, Bernardes-Engemann, Andréa R, Nicola, André M, de Macedo, Priscila M, Valle, Antonio Carlos F, Gutierrez-Galhardo, Maria Clara, Freitas, Dayvison FS, Barker, Bridget M, Matute, Daniel R, Stajich, Jason E, and Zancopé-Oliveira, Rosely M
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Microbiology ,Biological Sciences ,Genetics ,Emerging Infectious Diseases ,Antimicrobial Resistance ,Aetiology ,2.1 Biological and endogenous factors ,Infection ,Animals ,Cats ,Humans ,Antifungal Agents ,Brazil ,DNA Copy Number Variations ,Polymorphism ,Single Nucleotide ,Sporothrix ,Sporotrichosis ,Drug Resistance ,Fungal ,Sporothrix brasiliensis ,Chromosomal variation ,Tac1 gene ,Lipid metabolism ,Antifungal susceptibility ,Plant Biology ,Plant biology - Abstract
Feline-transmitted sporotrichosis has garnered attention due to the recent high incidence and the lack of efficient control in the epicenter of the epidemic, Rio de Janeiro, Brazil. Sporothrix brasiliensis is the major pathogen involved in feline-to-human sporotrichosis in Brazil and displays more virulent genotypes than the closely related species S. schenckii. Over the last two decades, several reports of antifungal-resistant strains have emerged. Sequencing and comparison analysis of the outbreak strains allowed us to observe that the azole non-wild-type S. brasiliensis strain CFP 1054 had significant chromosomal variations compared to wild-type strains. One of these variants includes a region of 231 Kb containing 75 duplicated genes, which were overrepresented for lipid and isoprenoid metabolism. We also identified an additional strain (CFP 1055) that was resistant to itraconazole and amphotericin B, which had a single nucleotide polymorphism in the tac1 gene. The patients infected with these two strains showed protracted clinical course and sequelae. Even though our sample size is modest, these results suggest the possibility of identifying specific point mutations and large chromosomal duplications potentially associated with antifungal resistance and clinical outcomes of sporotrichosis.
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- 2022
4. A novel Sporothrix brasiliensis genomic variant in Midwestern Brazil: evidence for an older and wider sporotrichosis epidemic.
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Eudes Filho, João, Santos, Isabele Barbieri Dos, Reis, Carmélia Matos Santiago, Patané, José Salvatore Leister, Paredes, Verenice, Bernardes, João Paulo Romualdo Alarcão, Poggiani, Sabrina Dos Santos Costa, Castro, Talita de Cássia Borges, Gomez, Oscar Mauricio, Pereira, Sandro Antonio, Schubach, Edvar Yuri Pacheco, Gomes, Kamila Peres, Mavengere, Heidi, Alves, Lucas Gomes de Brito, Lucas, Joaquim, Paes, Hugo Costa, Albuquerque, Patrícia, Cruz, Laurício Monteiro, McEwen, Juan G, Stajich, Jason E, Almeida-Paes, Rodrigo, Zancopé-Oliveira, Rosely Maria, Matute, Daniel R, Barker, Bridget M, Felipe, Maria Sueli Soares, Teixeira, Marcus de Melo, and Nicola, André Moraes
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Sporothrix ,Sporothrix brasiliensis ,Sporothrix schenckii ,Brasília ,sporotrichosis ,zoonotic transmission ,Sporothrix ,Sporothrix brasiliensis ,Sporothrix schenckii ,Microbiology - Abstract
Sporotrichosis is a subcutaneous infection caused by fungi from the genus Sporothrix. It is transmitted by inoculation of infective particles found in plant-contaminated material or diseased animals, characterizing the classic sapronotic and emerging zoonotic transmission, respectively. Since 1998, southeastern Brazil has experienced a zoonotic sporotrichosis epidemic caused by S. brasiliensis, centred in the state of Rio de Janeiro. Our observation of feline sporotrichosis cases in Brasília (Midwestern Brazil), around 900 km away from Rio de Janeiro, led us to question whether the epidemic caused by S. brasiliensis has spread from the epicentre in Rio de Janeiro, emerged independently in the two locations, or if the disease has been present and unrecognized in Midwestern Brazil. A retrospective analysis of 91 human and 4 animal cases from Brasília, ranging from 1993 to 2018, suggests the occurrence of both sapronotic and zoonotic transmission. Molecular typing of the calmodulin locus identified S. schenckii as the agent in two animals and all seven human patients from which we were able to recover clinical isolates. In two other animals, the disease was caused by S. brasiliensis. Whole-genome sequence typing of seven Sporothrix spp. strains from Brasília and Rio de Janeiro suggests that S. brasiliensis isolates from Brasília are genetically distinct from those obtained at the epicentre of the outbreak in Rio de Janeiro, both in phylogenomic and population genomic analyses. The two S. brasiliensis populations seem to have separated between 2.2 and 3.1 million years ago, indicating independent outbreaks or that the zoonotic S. brasiliensis outbreak might have started earlier and be more widespread in South America than previously recognized.
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- 2020
5. A novel Sporothrix brasiliensis genomic variant in Midwestern Brazil: evidence for an older and wider sporotrichosis epidemic
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Filho, João Eudes, dos Santos, Isabele Barbieri, Reis, Carmélia Matos Santiago, Patané, José Salvatore Leister, Paredes, Verenice, Bernardes, João Paulo Romualdo Alarcão, dos Santos Costa Poggiani, Sabrina, de Cássia Borges Castro, Talita, Gomez, Oscar Mauricio, Pereira, Sandro Antonio, Schubach, Edvar Yuri Pacheco, Gomes, Kamila Peres, Mavengere, Heidi, de Brito Alves, Lucas Gomes, Lucas, Joaquim, Paes, Hugo Costa, Albuquerque, Patrícia, Cruz, Laurício Monteiro, McEwen, Juan G, Stajich, Jason E, Almeida-Paes, Rodrigo, Zancopé-Oliveira, Rosely Maria, Matute, Daniel R, Barker, Bridget M, Felipe, Maria Sueli Soares, de Melo Teixeira, Marcus, and Nicola, André Moraes
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Microbiology ,Biological Sciences ,Biomedical and Clinical Sciences ,Clinical Sciences ,Infection ,Good Health and Well Being ,Adolescent ,Adult ,Aged ,Aged ,80 and over ,Animals ,Brazil ,Calmodulin ,Cats ,Child ,Child ,Preschool ,Cross-Sectional Studies ,Dogs ,Evolution ,Molecular ,Female ,Genome ,Fungal ,High-Throughput Nucleotide Sequencing ,Humans ,Infant ,Male ,Middle Aged ,Molecular Typing ,Phylogeny ,Sporothrix ,Sporotrichosis ,Whole Genome Sequencing ,Young Adult ,Zoonoses ,sporotrichosis ,Sporothrix brasiliensis ,Sporothrix schenckii ,zoonotic transmission ,Brasí ,lia ,Sporothrix ,Sporothrix brasiliensis ,Sporothrix schenckii ,Brasília ,Clinical sciences ,Epidemiology - Abstract
Sporotrichosis is a subcutaneous infection caused by fungi from the genus Sporothrix. It is transmitted by inoculation of infective particles found in plant-contaminated material or diseased animals, characterizing the classic sapronotic and emerging zoonotic transmission, respectively. Since 1998, southeastern Brazil has experienced a zoonotic sporotrichosis epidemic caused by S. brasiliensis, centred in the state of Rio de Janeiro. Our observation of feline sporotrichosis cases in Brasília (Midwestern Brazil), around 900 km away from Rio de Janeiro, led us to question whether the epidemic caused by S. brasiliensis has spread from the epicentre in Rio de Janeiro, emerged independently in the two locations, or if the disease has been present and unrecognized in Midwestern Brazil. A retrospective analysis of 91 human and 4 animal cases from Brasília, ranging from 1993 to 2018, suggests the occurrence of both sapronotic and zoonotic transmission. Molecular typing of the calmodulin locus identified S. schenckii as the agent in two animals and all seven human patients from which we were able to recover clinical isolates. In two other animals, the disease was caused by S. brasiliensis. Whole-genome sequence typing of seven Sporothrix spp. strains from Brasília and Rio de Janeiro suggests that S. brasiliensis isolates from Brasília are genetically distinct from those obtained at the epicentre of the outbreak in Rio de Janeiro, both in phylogenomic and population genomic analyses. The two S. brasiliensis populations seem to have separated between 2.2 and 3.1 million years ago, indicating independent outbreaks or that the zoonotic S. brasiliensis outbreak might have started earlier and be more widespread in South America than previously recognized.
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- 2020
6. Non-Zoonotic Transmission of Sporotrichosis: A Translational Study of Forty-Three Cases in a Zoonotic Hyperendemic Area.
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Nahal, Juliana, Coelho, Rowena Alves, Almeida-Silva, Fernando, Bernardes-Engemann, Andréa Reis, Procópio-Azevedo, Anna Carolina, Rabello, Vanessa Brito de Souza, Loureiro, Rayanne Gonçalves, Freitas, Dayvison Francis Saraiva, do Valle, Antonio Carlos Francesconi, de Macedo, Priscila Marques, Oliveira, Manoel Marques Evangelista, Silva, Margarete Bernardo Tavares da, Zancopé-Oliveira, Rosely Maria, Almeida-Paes, Rodrigo, Gutierrez-Galhardo, Maria Clara, and Figueiredo-Carvalho, Maria Helena Galdino
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AMPHOTERICIN B ,SPOROTRICHOSIS ,PLANT inoculation ,TERBINAFINE ,CALMODULIN - Abstract
Over the past two decades, zoonotic sporotrichosis transmitted by naturally infected cats has become hyperendemic in Rio de Janeiro, Brazil. Sporothrix brasiliensis is the main agent involved. However, there are other forms of transmission of sporotrichosis. The aim of this study was to evaluate and associate the epidemiological, clinical and therapeutic data and the susceptibility of Sporothrix spp. to antifungal drugs in 43 non-zoonotic sporotrichosis cases. Forty-three clinical strains of Sporothrix were identified by partial sequencing of the calmodulin gene. An antifungal susceptibility test of amphotericin B, terbinafine, itraconazole, posaconazole and isavuconazole was performed according to the broth microdilution method. Most patients were male (55.8%). Regarding the source of infection, 21 patients (48.8%) reported trauma involving plants and/or contact with soil. Sporothrix brasiliensis was the predominant species (n = 39), followed by S. globosa (n = 3) and S. schenckii (n = 1). Sporothrix brasiliensis was associated with all the sources of infection, reinforcing previous data showing the presence of this species in environmental sources, as well as with all the clinical forms, including severe cases. One clinical strain of Sporothrix brasiliensis was classified as a non-wild-type strain for amphotericin B and another for itraconazole. S. schenckii was classified as non-WT for all the antifungals tested. In this context, it is important to emphasize that non-zoonotic sporotrichosis still occurs in the state of Rio de Janeiro, with S. brasiliensis as the main etiological agent, primarily associated with infections acquired after traumatic inoculation with plants and/or soil contact, followed by S. globosa and S. schenckii. In addition, non-WT strains were found, indicating the need to monitor the antifungal susceptibility profile of these species. It is crucial to investigate other natural sources of S. brasiliensis to better understand this fungal pathogen and its environment and host cycle. [ABSTRACT FROM AUTHOR]
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- 2024
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7. Sporotrichosis After Tattooing Caused by Sporothrix brasiliensis
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Fichman, Vivian, Freitas, Dayvison Francis Saraiva, de Macedo, Priscila Marques, do Valle, Antonio Carlos Francesconi, Almeida-Silva, Fernando, Zancopé-Oliveira, Rosely Maria, Almeida-Paes, Rodrigo, and Gutierrez-Galhardo, Maria Clara
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- 2022
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8. Evolution of virulence-related phenotypes of Sporothrix brasiliensis isolates from patients with chronic sporotrichosis and acquired immunodeficiency syndrome
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Cruz, Ingrid Ludmila Rodrigues, Freitas, Dayvison Francis Saraiva, de Macedo, Priscila Marques, Gutierrez-Galhardo, Maria Clara, do Valle, Antonio Carlos Francesconi, Almeida, Marcos de Abreu, Coelho, Rowena Alves, Brito-Santos, Fábio, Figueiredo-Carvalho, Maria Helena Galdino, Zancopé-Oliveira, Rosely Maria, and Almeida-Paes, Rodrigo
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- 2021
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9. Sporothrix brasiliensis-specific polymerase chain reaction for the diagnosis of cat and human sporotrichosis through non-invasive samples.
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Trápaga, Mariana Rodrigues, Poester, Vanice Rodrigues, Sanchotene, Karine Ortiz, Basso, Rossana Patrícia, Bernardon, Fabiana Fedatto, Luvielmo, Rejane, Severo, Cecília Bittencourt, Almeida-Paes, Rodrigo, Zancopé Oliveira, Rosely Maria, von Groll, Andrea, and Xavier, Melissa Orzechowski
- Abstract
Zoonotic sporotrichosis caused by Sporothrix brasiliensis is an emerging mycosis in Latin America. One of the problems to quickly treat infected animals and break the transmission chain is associated with the time-consuming gold-standard diagnosis method (culture). We aimed to evaluate a species-specific polymerase chain reaction (PCR) for the diagnosis of sporotrichosis caused by S. brasiliensis using non-invasive samples. We performed a retrospective cross-sectional study using samples collected with swabs from humans and cats with clinical suspicion of sporotrichosis. Deoxyribonucleic acid (DNA) was extracted using a commercial kit, and a species-specific PCR for S. brasiliensis detection was performed. One hundred ten samples were included. PCR showed a good concordance with culture (86% of agreement) for human and cat samples (Kappa coefficient = 0.722, and 0.727, respectively). In conclusion, our data shows that this adapted PCR using non-invasive samples can be applied to sporotrichosis diagnosis, being a good alternative mainly in regions with a lack of mycologists to identify the fungus in culture, contributing to the control of this emergent zoonosis. [ABSTRACT FROM AUTHOR]
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- 2024
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10. Interaction with Pantoea agglomerans Modulates Growth and Melanization of Sporothrix brasiliensis and Sporothrix schenckii
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Almeida-Paes, Rodrigo, Brito-Santos, Fábio, Oliveira, Manoel Marques Evangelista, Bailão, Alexandre Melo, Borges, Clayton Luiz, Araújo, Glauber Ribeiro de Souza, Frases, Susana, Soares, Célia Maria de Almeida, and Zancopé-Oliveira, Rosely Maria
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- 2019
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11. Sporotrichosis in Older Adults: A Cohort Study of 911 Patients from a Hyperendemic Area of Zoonotic Transmission in Rio de Janeiro, Brazil.
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Gomes, Rachel da Silva Ribeiro, do Valle, Antonio Carlos Francesconi, Freitas, Dayvison Francis Saraiva, de Macedo, Priscila Marques, Oliveira, Raquel de Vasconcellos Carvalhaes, Almeida-Paes, Rodrigo, Zancopé-Oliveira, Rosely Maria, and Gutierrez-Galhardo, Maria Clara
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OLDER people ,SPOROTRICHOSIS ,COHORT analysis ,TERBINAFINE ,SURVIVAL analysis (Biometry) ,ITRACONAZOLE ,COMORBIDITY ,ARACHNOID cysts - Abstract
Generally, older people tend to suffer from more severe infections than younger adults. In addition, there are accumulations of comorbidities and immune senescence in some cases. This cohort study evaluated the clinical and epidemiological characteristics of older adults (≥60 years old) with sporotrichosis. The cohort consisted of 911 patients with a median age of 67 years, most of whom were female (72.6%), white (62.1%), and afflicted with comorbidities (64.5%). The lymphocutaneous form occurred in 62% of the patients, followed by the fixed form (25.7%), cutaneous disseminated form (8.9%), and extracutaneous/disseminated forms (3.3%). In this study, we draw attention to the frequency of osteoarticular involvement (2.1%) secondary to skin lesions such as osteomyelitis and/or tenosynovitis. A clinical cure was achieved in 87.3% of cases. Itraconazole was used in 81.1% of cases, while terbinafine was used in 22.7% of cases, usually in low doses. Survival analysis showed that the median treatment time was 119 days, and the multiple Cox model demonstrated that the presentation of a black coloration and diabetes was associated with a longer treatment time required to establish a cure. Therefore, these subgroups should be monitored more closely to reduce possible difficulties during treatment. It would be interesting to conduct more studies analyzing older adults with sporotrichosis from different geographic areas to better comprehend the disease in this group. [ABSTRACT FROM AUTHOR]
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- 2023
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12. Meningeal Sporotrichosis Due to Sporothrix brasiliensis : A 21-Year Cohort Study from a Brazilian Reference Center.
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Lima, Marco A., Freitas, Dayvison F. S., Oliveira, Raquel V. C., Fichman, Vivian, Varon, Andréa G., Freitas, Andréa D., Lamas, Cristiane C., Andrade, Hugo B., Veloso, Valdilea G., Almeida-Paes, Rodrigo, Almeida-Silva, Fernando, Zancopé-Oliveira, Rosely Maria, de Macedo, Priscila M., Valle, Antonio C. F., Silva, Marcus T. T., Araújo, Abelardo Q. C., and Gutierrez-Galhardo, Maria C.
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SPOROTRICHOSIS ,IMMUNE reconstitution inflammatory syndrome ,CEREBROSPINAL fluid examination ,HIV infections ,HIV-positive persons ,COHORT analysis - Abstract
Meningeal sporotrichosis is rare and occurs predominantly in immunosuppressed individuals. This retrospective study explored clinical and laboratory characteristics, treatment, and prognosis of patients with disseminated sporotrichosis who underwent lumbar puncture (LP) at a Brazilian reference center from 1999 to 2020. Kaplan–Meier and Cox regression models were used to estimate overall survival and hazard ratios. Among 57 enrolled patients, 17 had meningitis. Fifteen (88.2%) had HIV infection, and in 6 of them, neurological manifestations occurred because of the immune reconstitution inflammatory syndrome (IRIS). The most frequent symptom was headache (88.2%). Meningeal symptoms at first LP were absent in 7/17 (41.2%) patients. Sporothrix was diagnosed in cerebrospinal fluid either by culture or by polymerase chain reaction in seven and four patients, respectively. All but one patient received prolonged courses of amphotericin B formulations, and seven received posaconazole, but relapses were frequent. Lethality among patients with meningitis was 64.7%, with a higher chance of death compared to those without meningitis (HR = 3.87; IC95% = 1.23;12.17). Meningeal sporotrichosis occurs mostly in people with HIV and can be associated with IRIS. Screening LP is indicated in patients with disseminated disease despite the absence of neurological complaints. Meningitis is associated with poor prognosis, and better treatment strategies are needed. [ABSTRACT FROM AUTHOR]
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- 2023
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13. Sporothrix brasiliensis and Feline Sporotrichosis in the Metropolitan Region of Rio de Janeiro, Brazil (1998–2018).
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Boechat, Jéssica Sepulveda, Oliveira, Manoel Marques Evangelista, Gremião, Isabella Dib Ferreira, Almeida-Paes, Rodrigo, Machado, Ana Caroline de Sá, Zancopé-Oliveira, Rosely Maria, Oliveira, Raquel de Vasconcellos Carvalhaes, Morgado, Débora Salgado, Corrêa, Maria Lopes, Figueiredo, Anna Barreto Fernandes, Menezes, Rodrigo Caldas, and Pereira, Sandro Antonio
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SPOROTRICHOSIS ,DNA fingerprinting ,PARACOCCIDIOIDOMYCOSIS ,MEDICAL records ,CATS ,TREATMENT duration - Abstract
Feline sporotrichosis is enzootic in different regions of Brazil, especially in Rio de Janeiro. This study compared the genotype profiles of Sporothrix sp. isolated from cats in Rio de Janeiro between 1998 and 2018 and evaluated their association with clinical and epidemiological characteristics. One hundred nineteen Sporothrix sp. isolates from a cohort of cats with sporotrichosis seen at INI/Fiocruz were included. Clinical and epidemiological data were obtained from the medical records of the animals. T3B PCR fingerprinting was used for molecular identification of the Sporothrix species. All isolates were characterized as Sporothrix brasiliensis, with the observation of low intraspecific variation in 31 isolates (31.3%). The interval between lesion onset and first medical visit at INI/Fiocruz, as well as treatment duration until clinical cure, was longer in cats from the first decade of the epizootic. In addition, the frequency of the variables "good general status" and "presence of lymphadenomegaly" was higher among cats whose strains did not exhibit intraspecific variation. So far, S. brasiliensis has been the only species identified in feline cases of sporotrichosis since the beginning of the epizootic in Rio de Janeiro at INI/Fiocruz. [ABSTRACT FROM AUTHOR]
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- 2022
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14. Beyond conventional approaches: Enhancing photodynamic therapy for refractory feline sporotrichosis caused by Sporothrix brasiliensis.
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Mesquita Ramos, Mariana Lucy, de Souza Rabello, Vanessa Brito, Ribeiro da Silva, Erica Aparecida dos Santos, da Silva Lourenço, Maria Cristina, Almeida-Paes, Rodrigo, and Frases, Susana
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Male cat, 2 years old, with a refractory infection by Sporothrix brasiliensis, presents a single nodular lesion in the left auricular pavilion. To confirm the diagnosis, cytology, fungal culture, antifungal susceptibility test, molecular analysis, and, to aid in the differential diagnosis, bacterial culture, antibiogram, and histopathology of the lesion were performed. In the absence of therapeutic success with conventional antifungals, photodynamic therapy (PDT) was introduced, demonstrating a satisfactory response in the sixth treatment session. [ABSTRACT FROM AUTHOR]
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- 2024
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15. Sporotrichosis Caused by Non-Wild Type Sporothrix brasiliensis Strains.
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Bernardes-Engemann, Andréa Reis, Tomki, Gabriela Ferreira, Rabello, Vanessa Brito de Souza, Almeida-Silva, Fernando, Freitas, Dayvison Francis Saraiva, Gutierrez-Galhardo, Maria Clara, Almeida-Paes, Rodrigo, and Zancopé-Oliveira, Rosely Maria
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ITRACONAZOLE ,SPOROTRICHOSIS ,TERBINAFINE ,COMMUNICABLE diseases ,POLYMERASE chain reaction ,AMPHOTERICIN B - Abstract
The zoonotic transmission of sporotrichosis due to Sporothrix brasiliensis occurs largely in Rio de Janeiro state, Brazil since the 1990´s. Most patients infected with S. brasiliensis respond well to itraconazole or terbinafine. However, a few patients have a slow response or do not respond to the treatment and develop a chronic infection. The aim of this study was to analyze strains of S. brasiliensis against five different drugs to determine minimal inhibitory concentration distributions, to identify non-wild type strains to any drug evaluated and the clinical aspects of infections caused by them. This study evaluated 100 Sporothrix spp. strains obtained from 1999 to 2018 from the Evandro Chagas National Institute of Infectious Diseases, Fiocruz, which were identified through a polymerase chain reaction using specific primers for species identification. Two-fold serial dilutions of stock solutions of amphotericin B, itraconazole, posaconazole, ketoconazole and terbinafine prepared in dimethyl sulfoxide were performed to obtain working concentrations of antifungal drugs ranging from 0.015 to 8.0 mg/L. The broth microdilution reference method was performed according the M38-A2 CLSI guideline. All strains were identified as S. brasiliensis and thirteen were classified as non-wild type, two of them against different drugs. Non-wild type strains were identified throughout the entire study period. Patients infected by non-wild type strains presented prolonged treatment times, needed increased antifungal doses than those described in the literature and one of them presented a permanent sequel. In addition, three of them, with immunosuppression, died from sporotrichosis. Despite the broad use of antifungal drugs in hyperendemic areas of sporotrichosis, an emergence of non-wild type strains did not occur. The results of in vitro antifungal susceptibility tests should guide sporotrichosis therapy, especially in immunosuppressed patients. [ABSTRACT FROM AUTHOR]
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- 2022
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16. Environmental Isolation of Sporothrix brasiliensis in an Area With Recurrent Feline Sporotrichosis Cases.
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Rabello, Vanessa Brito Souza, Almeida-Silva, Fernando, Scramignon-Costa, Bruno de Souza, Motta, Beatriz da Silva, de Macedo, Priscila Marques, Teixeira, Marcus de Melo, Almeida-Paes, Rodrigo, Irinyi, Laszlo, Meyer, Wieland, and Zancopé-Oliveira, Rosely Maria
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ITRACONAZOLE ,SPOROTRICHOSIS ,CHITIN synthase ,AMPHOTERICIN B ,WOOD ,TERBINAFINE - Abstract
Sporotrichosis has been expanding throughout the Brazilian territory in recent years. New outbreaks have emerged, and consequently, the sporotrichosis agents, mainly Sporothrix brasiliensis , should remain in the environment somehow. Therefore, the aim of this study was to investigate the presence of Sporothrix spp. in the environment from an area of the Rio de Janeiro state, Brazil, with recurrent cases of human and animal sporotrichosis. Abandoned demolition timber wood samples were collected in the garden of a house where the cases of human and feline sporotrichosis have occurred in the last 10 years. The environmental survey revealed a Sporothrix spp. colony from the serial dilution cultures of one abandoned demolition wood sample. In addition, a fungal strain isolated from a cat with skin lesions that lived in the house was also included in the study. The species-specific PCR, and calmodulin partial sequencing identified the environmental and cat isolates as S. brasiliensis. Furthermore, the phylogenetic analysis performed with the partial sequences of internal transcribed spacer region and constitutive genes (calmodulin, β-tubulin, and chitin synthase) showed high similarity between environmental and cat isolates from the same geographic region. Moreover, the antifungal susceptibility test revealed that the minimal inhibitory concentration of itraconazole from the environment isolate was lower than the cat isolate, while amphotericin B and terbinafine were similar. Our results show that S. brasiliensis is able to maintain itself in the environmental material for years. With this, we corroborate that the eco-epidemiology of sporotrichosis is not well understood, and despite the major occurrence of S. brasiliensis in Brazil, it is rarely isolated from the environment. [ABSTRACT FROM AUTHOR]
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- 2022
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17. Pulmonary Sporotrichosis Caused by Sporothrix brasiliensis : A 22-Year, Single-Center, Retrospective Cohort Study.
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Fichman, Vivian, Mota-Damasceno, Caroline Graça, Procópio-Azevedo, Anna Carolina, Almeida-Silva, Fernando, de Macedo, Priscila Marques, Medeiros, Denise Machado, Astacio, Guis Saint-Martin, Zancopé-Oliveira, Rosely Maria, Almeida-Paes, Rodrigo, Freitas, Dayvison Francis Saraiva, and Gutierrez-Galhardo, Maria Clara
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SPOROTRICHOSIS ,HIV infections ,CHRONIC obstructive pulmonary disease - Abstract
Pulmonary sporotrichosis is a rare condition. It can present as a primary pulmonary disease, resulting from direct Sporothrix species (spp). conidia inhalation, or as part of multifocal sporotrichosis with multiple organ involvement, mainly in immunocompromised patients. This study aimed to describe the sociodemographic and epidemiological characteristics and clinical course of patients with positive cultures for Sporothrix spp. from pulmonary specimens (sputum and/or bronchoalveolar lavage) at a reference center in an area hyperendemic for zoonotic sporotrichosis. The clinical records of these patients were reviewed. Fourteen patients were included, and Sporothrix brasiliensis was identified in all cases. Disseminated sporotrichosis was the clinical presentation in 92.9% of cases, and primary pulmonary sporotrichosis accounted for 7.1%. Comorbidities included human immunodeficiency virus infection (78.6%), alcoholism (71.4%), and chronic obstructive pulmonary disease (14.3%). Treatment with amphotericin B followed by itraconazole was the preferred regimen and was prescribed in 92.9% of cases. Sporotrichosis-related death occurred in 42.9% while 35.7% of patients were cured. In five cases there was a probable contamination from upper airway lesions. Despite the significant increase in sporotrichosis cases, pulmonary sporotrichosis remains rare. The treatment of disseminated sporotrichosis is typically difficult. Prompt diagnosis and identification of all affected organs are crucial for better prognosis. [ABSTRACT FROM AUTHOR]
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- 2022
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18. Severe Sporotrichosis Treated with Amphotericin B: A 20-Year Cohort Study in an Endemic Area of Zoonotic Transmission.
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Fichman, Vivian, Freitas, Dayvison Francis Saraiva, do Valle, Antonio Carlos Francesconi, de Souza, Rogerio Valls, Curi, André Luiz Land, Valete-Rosalino, Cláudia Maria, de Macedo, Priscila Marques, Varon, Andréa Gina, Figueiredo-Carvalho, Maria Helena Galdino, Almeida-Silva, Fernando, Zancopé-Oliveira, Rosely Maria, Oliveira, Raquel de Vasconcelos Carvalhaes, Almeida-Paes, Rodrigo, and Gutierrez-Galhardo, Maria Clara
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AMPHOTERICIN B ,SPOROTRICHOSIS ,CENTRAL nervous system ,COHORT analysis ,POISONS - Abstract
Although rare, disseminated sporotrichosis is increasing in several countries. Despite its limiting toxic potential, amphotericin B is the only intravenous antifungal available to treat severe sporotrichosis. We aimed to describe the effectiveness and safety of amphotericin B treatment for severe sporotrichosis. Clinical records of patients with disseminated sporotrichosis at a reference center were reviewed. This study included 73 patients. Most (53.4%) were men and non-white. HIV coinfection was the main comorbidity (52.1%). Most reported contact with cats (76.7%). Sporothrix brasiliensis was the causative species. Affected sites were skin (98.6%), osteoarticular system (64.4%), upper airway (42.5%), central nervous system (20.5%), eyes (12.3%), and lungs (8.2%). Median doses of amphotericin B used were 750 mg and 4500 mg for deoxycholate and lipid complex formulations, respectively. Amphotericin B discontinuation occurred in 20.5% due to adverse events, mainly azotemia. The outcomes included cure (52.1%), death due to sporotrichosis (21.9%), death due to other causes (9.6%), and loss to follow-up (8.2%). Survival analysis showed an association between cure and the absence of bone, upper airway, and central nervous system involvement. Amphotericin B is the first-choice treatment for disseminated sporotrichosis; however, the severity of systemic dissemination might predict its response. Favorable clinical results depend on prompt diagnosis, investigation of fungal dissemination, and early therapy initiation. [ABSTRACT FROM AUTHOR]
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- 2022
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19. Zoonotic sporotrichosis in renal transplant recipients from Rio de Janeiro, Brazil.
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Fichman, Vivian, Marques de Macedo, Priscila, Francis Saraiva Freitas, Dayvison, Carlos Francesconi do Valle, Antonio, Almeida‐Silva, Fernando, Reis Bernardes‐Engemann, Andréa, Zancopé‐Oliveira, Rosely Maria, Almeida‐Paes, Rodrigo, and Clara Gutierrez‐Galhardo, Maria
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SPOROTRICHOSIS ,KIDNEY transplantation ,MYCOSES ,AMPHOTERICIN B ,TERBINAFINE - Abstract
Sporotrichosis is the main subcutaneous mycosis in the world. In the last two decades, zoonotic sporotrichosis transmitted by cats has become hyperendemic in Rio de Janeiro, Brazil. Renal transplant recipients are subject to invasive fungal infection because of the effects of immunosuppressive therapy, but sporotrichosis is rarely reported. The authors conducted a retrospective study describing epidemiological, clinical, and therapeutic data related to adult renal‐transplant‐recipient patients diagnosed with sporotrichosis. The molecular identification of fungal isolates was performed. Minimal inhibitory concentration (MIC) of amphotericin B (AMB), itraconazole (ITZ), posaconazole (POS), isavuconazole, and terbinafine (TRB) against the strains was determined using the protocol described by the Clinical and Laboratory Standards Institute (CLSI). Six cases were identified from a cohort with 2429 sporotrichosis patients. They were five men and one woman, with a mean age of 44.2 years (range: 34‐54 years). Four of them had cutaneous limited forms, and two patients had disseminated forms. The mean time between transplant and the onset of sporotrichosis symptoms was 25.5 (range: 6‐36) months. Sporothrix brasiliensis was identified as the causative agent. The isolates were classified as wild type for all antifungal drugs tested. Treatment schemes included AMB (deoxycholate and liposomal), ITZ, and TRB. Five patients evolved to cure, and one died as a result of disseminated disease. Renal transplant recipients may be a vulnerable group for sporotrichosis in endemic countries. The authors highlight the importance of sporotrichosis prevention, early diagnosis, and treatment to prevent disseminated disease and poor prognosis. [ABSTRACT FROM AUTHOR]
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- 2021
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20. Palate ulcer, uvular destruction and nasal septal perforation caused by Sporothrix brasiliensis in an HIV-infected patient.
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Eyer-Silva, Walter A., de Azevedo, Marcelo Costa Velho Mendes, da Silva, Guilherme Almeida Rosa, Basílio-de-Oliveira, Rodrigo Panno, de Araujo, Luciana Ferreira, do Lago, Isabela Vieira, Pereira, Franciele Cristina Ferreira, Fernandes, Miriã Boaretto Teixeira, Figueiredo-Carvalho, Maria Helena Galdino, Souza Rabello, Vanessa Brito de, Zancopé-Oliveira, Rosely Maria, Almeida-Paes, Rodrigo de, Ferry, Fernando Raphael de Almeida, and Neves-Motta, Rogério
- Abstract
Abstract Sporotrichosis is a human and animal disease caused by dimorphic pathogenic species of the genus Sporothrix. We report a dramatic presentation of Sporothrix brasiliensis infection, with destruction of the nasal septum, soft palate, and uvula of an HIV-infected woman. She was successfully treated with amphotericin B deoxycholate followed by itraconazole. Sporotrichosis remains a neglected opportunistic infection in patients with AIDS and awareness of this potentially fatal infection is of utmost importance. [ABSTRACT FROM AUTHOR]
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- 2019
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21. Refractory sporotrichosis due to Sporothrix brasiliensis in humans appears to be unrelated to in vivo resistance.
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Almeida-Paes, Rodrigo, Evangelista Oliveira, Manoel Marques, Saraiva Freitas, Dayvison Francis, do Valle, Antônio Carlos Francesconi, Gutierrez-Galhardo, Maria Clara, and Zancopé-Oliveira, Rosely Maria
- Abstract
Sporotrichosis is a subacute to chronic infection caused by members of the Sporothrix schenckii complex. Itraconazole is the first choice antifungal drug for treating this infection, with terbinafine and potassium iodide as alternatives and amphotericin B used in cases of severe infections. Correlation of antifungal susceptibility data with the clinical outcome of the patients is scarce. The aim of this study was to correlate clinical and mycological data in patients with refractory sporotrichosis. In this work, antifungal susceptibilities, determined according to the reference M38-A2 CLSI protocol, of 25 Sporothrix strains, isolated from seven human cases of sporotrichosis with adversities in the treatment, are presented. Tested drugs included itraconazole, ketoconazole, posaconazole, voriconazole, terbinafine, and amphotericin B. Fungi were identified using the T3B PCR fingerprinting. This method identified all strains as Sporothrix brasiliensis and also demonstrated a high degree of similarity between the strains. In general, voriconazole was ineffective against all strains, and elevated minimal inhibitory concentrations (MICs) were observed for amphotericin B. High itraconazole and terbinafine MICs were not observed in S. brasiliensis isolates from patients of this study. Moreover, a significant increase in itraconazole and terbinafine MIC values from strains isolated from the same patient in different periods was not observed. The results suggest that the antifungal susceptibility to terbinafine and itraconazole determined by the reference method does not play an important role in therapeutic failure of sporotrichosis and that acquisition of resistance during prolonged antifungal treatment is not likely to occur in S. brasiliensis. [ABSTRACT FROM AUTHOR]
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- 2017
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22. Single nucleotide polymorphisms and chromosomal copy number variation may impact the Sporothrix brasiliensis antifungal susceptibility and sporotrichosis clinical outcomes.
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Teixeira, Marcus M., Almeida-Paes, Rodrigo, Bernardes-Engemann, Andréa R., Nicola, André M., de Macedo, Priscila M., Valle, Antonio Carlos F., Gutierrez-Galhardo, Maria Clara, Freitas, Dayvison F.S., Barker, Bridget M., Matute, Daniel R., Stajich, Jason E., and Zancopé-Oliveira, Rosely M.
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SINGLE nucleotide polymorphisms , *DNA copy number variations , *ANTIFUNGAL agents , *SPOROTRICHOSIS , *TREATMENT effectiveness , *LIPID metabolism - Abstract
• Sporothrix brasiliensis isolates showed variable antifungal resistance phenotypes. • Infections caused by this species also present varied clinical manifestations. • Antifungal-resistant strains display significant copy number variation (CNVs). • CNVs affect genes involved in lipid and isoprenoid metabolism. • SNP's in the tac1 gene may also contribute to antifungal resistance. Feline-transmitted sporotrichosis has garnered attention due to the recent high incidence and the lack of efficient control in the epicenter of the epidemic, Rio de Janeiro, Brazil. Sporothrix brasiliensis is the major pathogen involved in feline-to-human sporotrichosis in Brazil and displays more virulent genotypes than the closely related species S. schenckii. Over the last two decades, several reports of antifungal-resistant strains have emerged. Sequencing and comparison analysis of the outbreak strains allowed us to observe that the azole non-wild-type S. brasiliensis strain CFP 1054 had significant chromosomal variations compared to wild-type strains. One of these variants includes a region of 231 Kb containing 75 duplicated genes, which were overrepresented for lipid and isoprenoid metabolism. We also identified an additional strain (CFP 1055) that was resistant to itraconazole and amphotericin B, which had a single nucleotide polymorphism in the tac1 gene. The patients infected with these two strains showed protracted clinical course and sequelae. Even though our sample size is modest, these results suggest the possibility of identifying specific point mutations and large chromosomal duplications potentially associated with antifungal resistance and clinical outcomes of sporotrichosis. [ABSTRACT FROM AUTHOR]
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- 2022
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23. Increase in virulence of Sporothrix brasiliensis over five years in a patient with chronic disseminated sporotrichosis.
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Freitas, Dayvison FS, Santos, Suelen S, Almeida-Paes, Rodrigo, de Oliveira, Manoel ME, do Valle, Antonio CF, Gutierrez-Galhardo, Maria Clara, Zancopé-Oliveira, Rosely M, and Nosanchuk, Joshua d
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SPOROTRICHOSIS ,MYCOSES ,MICROBIAL virulence ,CHRONIC diseases ,IMMUNOSUPPRESSION - Abstract
The metropolitan region of Rio de Janeiro is hyperendemic for cat-associated sporotrichosis. This study aimed to assess the virulence of serial Sporothrix isolates from a 61-year-old male patient with chronic, destructive disseminated sporotrichosis. Five Sporothrix isolates were cultured from skin exudates and bone samples over a 5-year period, and all were molecularly identified as Sporothrix brasiliensis. The final isolate was significantly more virulent in Galleria mellonella larvae compared to earlier isolates. We conclude that S. brasiliensis has the capacity to increase in virulence in vivo. This finding is significant to clinicians caring for individuals with S. brasiliensis disease and it suggests that further studies are needed to identify the mechanisms underlying pathogenicity enhancement during chronic disease. [ABSTRACT FROM AUTHOR]
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- 2015
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24. Cell-free antigens of Sporothrix brasiliensis: antigenic diversity and application in an immunoblot assay.
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Almeida-Paes, Rodrigo, Bailão, Alexandre Melo, Pizzini, Cláudia Vera, Reis, Rosani Santos, de Almeida Soares, Célia Maria, Peralta, José Mauro, Gutierrez-Galhardo, Maria Clara, and Zancopé-Oliveira, Rosely Maria
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ANTIGENS , *DIAGNOSIS , *MYCOSES , *SPOROTRICHOSIS , *PARACOCCIDIOIDES brasiliensis , *IMMUNOBLOTTING , *RABBITS - Abstract
Sporotrichosis is a subcutaneous mycosis diagnosed by isolation of the fungus in culture. Serological tests for help in diagnosis in general do not use purified or recombinant antigens, because there is a paucity of described immunoreactive proteins, especially for the new described Sporothrix species, such as Sporothrix brasiliensis. This study aims to characterise antigens from S. brasiliensis and verify their application in serodiagnosis of sporotrichosis. An immunoblot assay allied with computer-based analysis was used to identify putative antigenic molecules in a cell-free extracts of both morphological phases of this fungus, and to delineate antigenic polymorphism among seven S. brasiliensis isolates and one S. schenckii Brazilian strain. The mycelial and yeast phase of the fungus originated 14 and 23 reactive bands, respectively, which were variable in intensity. An 85 kDa antigen, verified in the yeast phase of the fungus, was observed in all strains used and the immunodominant protein was identified. This protein, however, cross-react with serum samples from patients infected with other pathogens. The results show that the S. brasiliensis cell-free antigen extract is a single and inexpensive source of antigens, and can be applied on the sporotrichosis serodiagnosis. [ABSTRACT FROM AUTHOR]
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- 2012
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25. Identification by MALDI-TOF MS of Sporothrix brasiliensis Isolated from a Subconjunctival Infiltrative Lesion in an Immunocompetent Patient.
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M. F. Matos, Aline, M. Moreira, Lucas, F. Barczewski, Bianca, X. de Matos, Lucas, B. V. de Oliveira, Jordane, F. Pimentel, Maria Ines, Almeida-Paes, Rodrigo, G. Oliveira, Murilo, C. A. Pinto, Tatiana, Lima, Nelson, de O. Matos, Magnum, de M. e Costa, Louise G., Santos, Cledir, and Marques Evangelista Oliveira, Manoel
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TIME-of-flight mass spectrometry ,MYCOSES ,SPOROTRICHOSIS ,MOLECULAR weights ,AMPHOTERICIN B ,ITRACONAZOLE ,MUCORMYCOSIS ,FUNGAL cultures - Abstract
Sporotrichosis is a globally distributed subcutaneous fungal infection caused by dimorphic fungi belonging to the Sporothrix species complex that affects the skin of limbs predominantly, but not exclusively. A rare case of ocular sporotrichosis in an immunocompetent Brazilian patient from the countryside of Rio de Janeiro State is reported. A 68-year-old woman presented with a subconjunctival infiltrative lesion in the right eye with pre-auricular lymphadenopathy of onset 4 months ago that evolved to suppurative nodular lesions on the eyelids. Conjunctival secretion was evaluated by histopathological examination and inoculated on Sabouraud Dextrose Agar (SDA). Histopathology showed oval bodies within giant cells and other mononucleated histiocytes. Fungus grown on SDA was identified as Sporothrix sp. by morphological observations. The isolated strain was finally identified by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS) associated with an in-house database enriched with reference Sporothrix complex spectra. The strain presented a MALDI spectrum with the ion peaks of the molecular mass profile of S. brasiliensis. The patient was adequately treated with amphotericin B subsequently replaced by itraconazole. Due to scars left by the suppurative process, the patient presented poor final visual acuity. The present work presents an overview of ocular sporotrichosis and discusses the diagnostic difficulty that can lead to visual sequelae in these cases. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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