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1.
Braz. J. Pharm. Sci. (Online) ; 58: e20152, 2022. tab, graf
Article in English | LILACS | ID: biblio-1403756

ABSTRACT

Abstract Sporothrix spp. are the major dimorphic fungus associated with a type of subcutaneous mycosis, sporotrichosis. The limitation of antifungal availability and the past reports of in vitro resistance of Sporothrix spp. clinical isolates makes it important to search for new compounds with antifungal activities. In this study, we therefore evaluate the in vitro activities of complexes coordinated with Co(II) and cobalt chloride hexahydrate against clinical isolates of Sporothrix spp. Broth microdilution test was performed as per M38-A2 from CLSI (2008) in duplicate for 31 clinical isolates of Sporothrix spp. (27 S. brasiliensis e 04 S. schenckii stricto sensu). The antifungal activities of the complexes coordinated with Co(II) and cobalt chloride hexahydrate were detected at a concentration range of 32-128 µg/mL for all isolates. None of the compounds demonstrated any cytotoxicity (to macrophage cells) at the concentration of 200 µg/mL. The activity against Sporothrix spp. recorded in this study instigate the continuity of experimental studies with Co(II) to search for the mechanisms of antifungal action as well as to evaluate its interaction with the commercial antifungal drugs.


Subject(s)
In Vitro Techniques/instrumentation , Macrophages/classification , Sporotrichosis/drug therapy , Sporothrix/classification , Pharmaceutical Preparations/administration & dosage , Chlorides/agonists , Fungi
2.
Rev. Soc. Bras. Med. Trop ; 53: e20190172, 2020. graf
Article in English | LILACS-Express | LILACS | ID: biblio-1092230

ABSTRACT

Abstract INTRODUCTION: Previous studies that detected Paracoccidioides spp. DNA in soil taken from rural areas have shown this to be a valuable tool for ecological and epidemiological studies. This study reports the detection of Paracoccidioides spp. DNA in soil samples from an urban area of southern Brazil. METHODS: Sixteen soil samples were submitted to nested-PCR and the amplicons of a representative number of positive samples were sequenced. RESULTS: Paracoccidioides spp. DNA was found in 44% of samples. Four DNA amplicons were sequenced, showing 100% homology with P. brasiliensis. CONCLUSIONS: The southern Brazilian urban population is commonly exposed to the Paracoccidioides fungus.

4.
Rev. Soc. Bras. Med. Trop ; 51(3): 387-389, Apr.-June 2018. tab, graf
Article in English | LILACS | ID: biblio-1041461

ABSTRACT

Abstract INTRODUCTION: Several factors can cause false-positive results in the galactomannan (GM) test; however, others remain unknown. Presently, the impact of airborne contamination by Aspergillus conidia during enzyme-linked immunosorbent assay (ELISA) remains uninvestigated. METHODS: We studied 12 A. fumigatus isolates. Fungal conidia were serially diluted and tested for GM detection using the Platelia® Aspergillus enzyme immunoassay (EIA). RESULTS: The conidia concentration required for an EIA-positive result was 4.8 × 103 (median). CONCLUSIONS: This is the first study to evaluate the impact of environmental contamination on the Platelia® Aspergillus EIA assay. Only massive contamination can interfere with GM optical readings, suggesting that environmental contamination does not cause false-positive test results.


Subject(s)
Humans , Aspergillus fumigatus/isolation & purification , Spores, Fungal , Enzyme-Linked Immunosorbent Assay/adverse effects , False Positive Reactions , Mannans , Enzyme-Linked Immunosorbent Assay/methods
5.
Braz. j. microbiol ; 48(1): 145-150, Jan.-Mar. 2017. tab
Article in English | LILACS | ID: biblio-839344

ABSTRACT

Abstract Vulvovaginal candidiasis (VVC) is an infection of the genital mucosa caused by different species of the genus Candida. Considering the lack of data on this topic in the south of Brazil, this study aimed to assess the prevalence of Candida spp. in the cervical-vaginal mucosa of patients treated at a university hospital in southern Rio Grande do Sul, as well as the etiology and the susceptibility of the isolates against fluconazole, itraconazole, miconazole and nystatin. Samples were collected at the gynecology clinic of the Federal Hospital of the University of Rio Grande, and the isolates were identified using phenotypic and biochemical tests. The susceptibility analysis was performed according to the CLSI M27-A2 protocol. Of the 263 patients included, Candida spp. was isolated in 27%, corresponding to a prevalence of approximately 15% for both VVC and colonization. More than 60% of the isolates were identified as Candida albicans; C. non-albicans was isolated at a rate of 8.6% in symptomatic patients and 14.3% in asymptomatic patients. The prevalence of resistance against fluconazole and itraconazole was 42% and 48%, respectively; the minimal inhibitory concentration of miconazole ranged from 0.031 to 8 µg/mL, and that of nystatin ranged from 2 to >16 µg/mL. The high rate of resistance to triazoles observed in our study suggests the necessity of the association of laboratory exams to clinical diagnosis to minimize the practice of empirical treatments that can contribute to the development of resistance in the isolates.


Subject(s)
Humans , Female , Pregnancy , Child , Adolescent , Adult , Middle Aged , Aged , Young Adult , Candida/drug effects , Candidiasis, Vulvovaginal/microbiology , Candidiasis, Vulvovaginal/epidemiology , Brazil/epidemiology , Candida/isolation & purification , Candida/classification , Microbial Sensitivity Tests , HIV Infections , Prevalence , Drug Resistance, Fungal , Antifungal Agents/pharmacology
6.
Braz. j. microbiol ; 46(2): 513-517, Apr-Jun/2015. tab, graf
Article in English | LILACS | ID: lil-749731

ABSTRACT

Paracoccidioides brasiliensis is the etiological agent of the major systemic mycosis in Brazil, called paracoccidioidomycosis. Although the Rio Grande do Sul is considered an endemic area of the disease, there are few studies on the ecology of P. brasiliensis in the state. Therefore, this study aimed to evaluate the infection of P. brasiliensis in horses from the mesoregion of Southwest Riograndense, using these animals as sentinels. Serological techniques, such as double immunodiffusion in agar gel (AGID) and indirect ELISA, were performed to detect the anti-gp43 P. brasiliensis antibody in horses from five different farms in the region of Bagé, RS, Brazil. Serology was performed in 200 Pure Blood English horses up to two years of age that were born and raised exclusively at the farms. Of these horses, 12% had anti-gp43 antibodies according to the ELISA results, with rates ranging from 0 to 30% according to the farm of origin (p < 0.001). Based on the immunodiffusion results, all equine serum samples were negative. These results indicate the presence of the fungus P. brasiliensis in the middle region of the southwestern state of Rio Grande do Sul, Brazil.


Subject(s)
Animals , Antibodies, Fungal/blood , Horse Diseases/epidemiology , Paracoccidioides/immunology , Paracoccidioidomycosis/veterinary , Brazil/epidemiology , Enzyme-Linked Immunosorbent Assay , Horses , Horse Diseases/microbiology , Paracoccidioidomycosis/epidemiology , Paracoccidioidomycosis/microbiology , Seroepidemiologic Studies
7.
Arq. Inst. Biol ; 82: 1-4, 2015.
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1026511

ABSTRACT

A criptococose é uma micose primariamente pulmonar, sendo adquirida por meio de inalação de propágulos fúngicos infectantes encontrados no ambiente. Um dos principais agentes etiológicos da criptococose é a espécie Cryptococcus neoformans , que apresenta distribuição mundial. O objetivo desse trabalho foi pesquisar a ocorrência de Cryptococcus spp. em excretas de Columba livia (pombos domésticos) encontradas na área externa do prédio do Hospital Universitário Dr. Miguel Riet Correa Junior, centro de referência para o tratamento da Síndrome da Imunodeficiência Adquirida na região sul do estado do Rio Grande do Sul, Brasil. Durante um período de dez meses, foi coletado um total de 40 amostras de excretas secas da área acadêmica e da área hospitalar do Hospital Universitário. As excretas foram adicionadas de solução salina com cloranfenicol, homogeneizados em vórtex, semeados em ágar Níger e incubados a 25ºC com observações diárias até sete dias. A identificação do micro-organismo foi realizada por provas fenotípicas e bioquímicas. Das 40 amostras processadas e analisadas, 13 (32,5%) foram positivas para o isolamento de Cryptococcus spp., variando de 20.000 a 3.000.000 UFC/g de fezes. O isolamento desse fungo em um ambiente hospitalar é relevante em saúde pública, pois evidencia a exposição dos indivíduos que frequentam esse local a propágulos infectantes.(AU)


Cryptococcosis is primarily a pulmonary mycosis, being acquired by inhalation of infective fungal propagules found in the environment. One of the main etiological agents of cryptococcosis is the yeast Cryptococcus neoformans , which has worldwide distribution and whose natural habitat is the feces of birds. The aim of this study was to investigate the occurrence of Cryptococcus spp. in excreta of Columba livia (domestic pigeon) found in the outer area of the building of Hospital Universitário Dr. Miguel Riet Correa Junior, a reference center for the treatment of Acquired Immunodeficiency Syndrome in southern state of Rio Grande do Sul, Brazil. During a period of ten months, a total of 40 samples of dried excreta was collected from the site's academic area and hospital. To the excreta, were added saline solution with chloramphenicol, homogenized in a vortex, cultivated in Niger seed agar and incubated at 25°C with daily observations up to seven days. The identification of the microorganism was performed by phenotypical and biochemical tests. From the 40 samples processed and analyzed, 13 (32.5%) were positive for the isolation of Cryptococcus spp., with the quantity of yeasts ranging from 20.000 to 3.000.000 CFU/g of feces. Isolation of the opportunistic fungus Cryptococcus spp. at a university hospital is relevant in public health for demonstrating the exposure of individuals who frequent this site to infectant propagules.(AU)


Subject(s)
Animals , Columbidae , Virulence , Public Health , Cryptococcosis , Cryptococcus , Brazil
8.
An. bras. dermatol ; 89(4): 581-586, Jul-Aug/2014. tab
Article in English | LILACS | ID: lil-715536

ABSTRACT

BACKGROUND: Onychomycosis or nail fungal infection is the most common nail disease. Despite the wide range of studies on this condition, it remains difficult to establish the correct diagnosis and effective treatment. OBJECTIVES: To evaluate the efficacy of classical laboratory methods for the diagnosis of onychomycosis, and the in vitro susceptibility of the its main etiological agent to antifungals used in routine. METHODS: Nail samples of 100 patients with clinically suspected feet onychomycosis were collected to confirm the diagnosis by direct mycological examination and fungal culture. In vitro antifungal susceptibility testing was performed against strains of the main dermatophyte isolated by microdilution, according to the standardized protocol (M38-A2 - CLSI) RESULTS: Clinical diagnosis of onychomycosis was confirmed by laboratory analysis in 59% of patients. Of these, 54.2% were positive only in direct mycological examination, 44.1% in direct mycological examination and culture, and one case (1.7%) was positive only in culture, resulting in weak agreement between these tests (Kappa = 0.385; p <0.001) High minimum inhibitory concentration values of fluconazole and itraconazole were observed in 66.7% and 25.0% of isolates of T. rubrum tested. Additionally, high MIC values of terbinafine and ciclopirox was detected in only one isolate, and this was one of the strains in which in vitro activity of itraconazole and fluconazole has not been proven. CONCLUSIONS: Poor agreement was observed between direct mycological examination and culture for the diagnosis of onychomycosis, with direct mycological examination being significantly more sensitive. Except for fluconazole, the other three antifungals tested showed good in vitro activity against clinical isolates of T. rubrum. .


Subject(s)
Adult , Female , Humans , Male , Middle Aged , Antifungal Agents/pharmacology , Onychomycosis/diagnosis , Onychomycosis/microbiology , Trichophyton/drug effects , Trichophyton/isolation & purification , Cross-Sectional Studies , Dose-Response Relationship, Drug , Fluconazole/pharmacology , Itraconazole/pharmacology , Microbial Sensitivity Tests , Naphthalenes/pharmacology , Onychomycosis/drug therapy , Prospective Studies , Pyridones/pharmacology , Reproducibility of Results
9.
Rev. Inst. Med. Trop. Säo Paulo ; 55(3): 145-147, May-Jun/2013. tab
Article in English | LILACS | ID: lil-674687

ABSTRACT

Here we investigate the extent to which different Aspergillus species release galactomannan (GM) in vitro. Marked variability was observed in GM reactivity between and within Aspergillus species, with A. terreus strains showing the highest GM indexes. The in vivo significance of these findings remains to be determined.


O estudo objetivou investigar a liberação in vitro de galactomanana (GM) em distintas espécies patogênicas de fungos do gênero Aspergillus. Grande variabilidade foi detectada tanto intra quanto inter espécies, sendo as cepas da espécie A. terreus relacionadas aos maiores índices de GM detectados. O significado in vivo destes achados permanece em aberto, porém merece investigação.


Subject(s)
Antigens, Fungal/analysis , Aspergillus/chemistry , Mannans/analysis , Aspergillus/classification , Immunoenzyme Techniques , Species Specificity
10.
Rev. Soc. Bras. Med. Trop ; 46(1): 116-118, Jan.-Feb. 2013. ilus
Article in English | LILACS | ID: lil-666809

ABSTRACT

Sporotrichosis occurs after fungal implantation of Sporothrix spp. in the skin, and is the main subcutaneous mycosis in Latin America. Here we describe three atypical cases of the disease. The first case report an extra-cutaneous occurrence of the disease with joint infection; the second one describes a patient with bilateral lymphocutaneous form of sporotrichosis; and the third shows a zoonotic cutaneous case with the development of an erythema nodosum as a hypersensitivity reaction. These cases show the disease importance on the region and the necessity of fungal culture to the diagnosis confirmation.


Subject(s)
Adult , Female , Humans , Male , Middle Aged , Sporotrichosis/diagnosis , Antifungal Agents/therapeutic use , Itraconazole/therapeutic use , Sporotrichosis/drug therapy
11.
Braz. j. microbiol ; 44(1): 139-144, 2013. tab
Article in English | LILACS | ID: lil-676911

ABSTRACT

The oral microbiota of humans and animals is made up of a wide variety of yeasts and bacteria, but microbiota of dogs is not totally described. Although such identification is an important step to establish the etiopathogenesis and adequate therapy for the periodontal disease The aim of this study was to evaluate and correlate oral alterations with the presence of yeasts in oral cavity of female dogs. After clinical evaluation samples from healthy and from dogs with oral diseases were obtained from three different oral sites by swabs, curettes, millimeter periodontal probes and HA membrane tip in cellulose ester. Yeast identification was performed through macroscopic and microscopic colony features and biochemical tests. Dental calculus was the most prevalent occurrence in the oral cavity of 59 females. However, the isolation of yeasts was significantly higher (p < 0.05) in animals suffering from halitosis. Eleven yeast species were identified, namely: Malassezia pachydermatis, Rhodotorula spp., Candida albicans, C. catenulata, C. famata, C. guilliermondii, C. parapsilosis, C. intermedia, Trichosporon asahii, T. mucoides and Cryptococcus albidus. It could be concluded that the yeasts are part of the microbiota from the different sites of the oral cavity of the female canines studied without causing any significant alterations except halitosis.


Subject(s)
Animals , Female , Dogs , Mouth/pathology , Candidiasis, Oral , Yeasts/isolation & purification , Periodontal Diseases , Methods
12.
Rev. Inst. Med. Trop. Säo Paulo ; 51(6): 345-348, Oct.-Dec. 2009. tab, ilus
Article in English | LILACS | ID: lil-539455

ABSTRACT

Aspergillus is a phagocyte opportunistic fungus that causes aspergillosis, an unusual disease in patients with AIDS. Six cases of fungal ball in patients with AIDS are reported here. In this group, all patients had hemoptysis and tuberculosis as the underlying lung disease. The diagnosis of pulmonary fungus ball was based on the clinical and radiographic feature, combined with serological and mycological evidence of Aspergillus fumigatus.


Os fungos filamentosos são oportunistas de fagócitos, motivo pelo qual aspergilose é incomum em pacientes com Aids. A apresentação clínica depende do estado imune, tamanho do inóculo fúngico e doença de base. São relatados neste trabalho seis casos de bola fúngica em pacientes com Aids. Neste grupo, todos tiveram tuberculose como doença de base e hemoptise foi o principal sintoma. O diagnóstico da bola fúngica foi através da apresentação clínica, achados radiológicos combinados com imunodifusão radial dupla, exame micológico direto e cultivo do material do trato respiratório, sendo A. fumigatus o agente isolado


Subject(s)
Adult , Female , Humans , Male , Middle Aged , AIDS-Related Opportunistic Infections/microbiology , Aspergillosis/microbiology , Aspergillus fumigatus/isolation & purification , Lung Diseases, Fungal/microbiology , Tuberculosis, Pulmonary/microbiology , AIDS-Related Opportunistic Infections/diagnosis , Aspergillosis/diagnosis , Lung Diseases, Fungal/diagnosis , Retrospective Studies , Tuberculosis, Pulmonary/diagnosis
13.
Braz. j. infect. dis ; 13(5): 353-355, Oct. 2009. tab
Article in English | LILACS | ID: lil-544988

ABSTRACT

Piperacillin-tazobactam is a broad spectrum antimicrobial agent that can cause false-positive results in the commercial Platelia Aspergillus EIA test. So far, no study has been performed in Latin America to evaluate the clinical implication of this finding. Here we studied the potential for galactomannan detection in piperacillin-tazobactam batches commercialized in the Brazilian market. Five batches from distinct laboratories were tested in duplicate in the Platelia Aspergillus EIA according to the manufacturer's instructions. Only one drug showed crossreaction at a cut-off of 0.5. Human serum was spiked with this particular drug aiming to mimic achievable piperacillin-tazobactam concentrations in the serum. Results were all negative for galactomannan detection, even at high drug concentrations. Results from this pilot study suggest that piperacillin-tazobactam might not be a clinically significant cause of false-positive results in the Platelia Aspergillus EIA test in Brazil.


Subject(s)
Anti-Bacterial Agents/chemistry , Aspergillus/immunology , Immunoenzyme Techniques , Mannans/analysis , False Positive Reactions , Penicillanic Acid/analogs & derivatives , Penicillanic Acid/chemistry , Piperacillin/chemistry
14.
J. bras. pneumol ; 35(9): 907-919, set. 2009. ilus, tab
Article in Portuguese | LILACS | ID: lil-528397

ABSTRACT

Nesta era de imunossupressão e transplantes, é imperativa a comunicação entre médicos e laboratoristas devido ao fato de que o diagnóstico de doenças fúngicas, para esses pacientes, deve ser rápido, o que é complicado e requer a cooperação e colaboração de vários profissionais com distintas especializações. Este artigo revisa as técnicas laboratoriais utilizadas para o diagnóstico de infecções fúngicas pulmonares. Os tópicos abordados incluem: fatores relacionados ao hospedeiro, como resposta imunológica e predisposições anatômicas; colheita, armazenamento, remessa e transporte das amostras; processamento laboratorial; exame microscópico direto; técnicas de coloração, cultivo e identificação fúngica; biossegurança em laboratórios; tropismo e reação teciduais; soromicologia; e detecção de antígenos.


In this era of immunosuppression and transplantation, it is imperative that laboratory scientists remain in close communication with physicians. In patients receiving immunosuppressive therapy, the diagnosis of mycoses must be rapid, which is complicated, requiring the cooperation and collaboration of a number of professionals from various fields of expertise. In this paper, the laboratory diagnosis of pulmonary fungal infection is reviewed. The following topics are included: host factors such as immunological response and predisposing anatomical features; collection, transport and storage of specimens; laboratory processing of samples; direct microscopy; staining techniques, culture and identification of fungi; laboratory biosafety; tissue tropism and reactions; serology; and antigen detection.


Subject(s)
Humans , Lung Diseases, Fungal/diagnosis , Clinical Laboratory Techniques , Interprofessional Relations , Laboratory Personnel , Lung Diseases, Fungal/microbiology
15.
Rev. Inst. Med. Trop. Säo Paulo ; 51(1): 57-58, Jan.-Feb. 2009. ilus
Article in English | LILACS | ID: lil-505997

ABSTRACT

Here we report a case of invasive pansinusitis with proptosis of the right eye caused by Aspergillus flavus in an immunocompromised patient with acute biphenotypic leukemia without aggressive therapy response.


Descreve-se um caso de pansinusite invasiva com proptose do globo ocular direito causado por Aspergillus flavus em um paciente imunossuprimido com leucemia aguda bifenotípica sem resposta a terapia agressiva.


Subject(s)
Adolescent , Humans , Male , Aspergillosis/diagnosis , Aspergillus flavus/isolation & purification , Immunocompromised Host , Leukemia, Biphenotypic, Acute/immunology , Sinusitis/microbiology , Aspergillosis/drug therapy , Fatal Outcome , Sinusitis/diagnosis
16.
Braz. j. vet. res. anim. sci ; 46(3): 222-227, 2009. tab
Article in English | LILACS | ID: lil-536860

ABSTRACT

Malassezia pachydermatis is recognized as a normal inhabitant and an opportunistic pathogen of the external ear canal and skin of dogs and cats. In special clinical conditions, and mainly in the cases of therapeutic failure related to external otitis and dermatitis complicated by this yeast, is recommended testing susceptibility to antifungal drugs. Different approaches of evaluating the susceptibility of yeasts faced to antifungals in laboratory exist, some of them are commercial approaches and others previously standardized by the CLSI (NCCLS,2002). The purpose of this study was to evaluate the susceptibility of 17 samples of M. pachydermatis from canine external otitis using two different in vitro antifungal susceptibility methods: the Etest®and the broth Microdilution Method (MD) with ketoconazole. The mean MIC observed between the 17 samples were 0.103mg/mL to ETEST and 0.0012mg/mL to MD ranging from 0.004 to 0.75mg/mL in ETEST and 0.0019 and 0.03mg/mL in MD using the same samples. By ETEST, two (11.8%) samples were resistant, eight(47.1%) susceptible and seven (41.1%) showed intermediate susceptibility. Through the MD it was observed four (23.5%) resistant samples, seven (41.2%) susceptible and six (35.3%) samples with intermediate susceptibility. Despite of the percentages being equivalent in each rank of susceptibility through the two techniques, the results do not correspond to the same sample. These results showed that there is an urgent need to standardize those values considered as parameters for growth inhibition of this yeast. Then a simple and efficient method could be used routinely in the laboratory practice.


Malassezia pachydermatis é reconhecida como um habitante normal e patógeno oportunista do meato acústico externo e da pele de cães e gatos. Em condições clínicas especiais e em casos de falha terapêutica relatada em otite externa e dermatite complicada por esta levedura, é recomendado o teste de suscetibilidade antifúngica. Existem diferentes métodos de avaliação da suscetibilidade da levedura frente a antifúngicos em laboratório, alguns métodos comerciais e outros previamente padronizados pelo CLSI (NCCLS, 2002). O objetivo deste estudo foi o de avaliar a suscetibilidade de 17 amostras de M.pachydermatis proveniente de otite externa canina por meio de duas técnicas in vitro de antifungigramas: o Etest® e a microdiluição em caldo (MC) com o cetoconazol. A media da Concentração Inibitória Mínima (CIM) observada entre as 17 amostras foram 0.103mg/mL para o ETEST e 0.0012mg/mL para a MC variando de 0.004 a0.75mg/mL no ETEST e entre 0.0019 e 0.03mg/mL na MC usando as mesmas amostras. Pelo ETEST, duas (11.8%) amostras foram resistentes, oito (47.1%) sensíveis e sete (41.1%) mostraram sensibilidade intermediária. Na MC foram observadas quatro (23.5%)amostras resistentes, sete (41.2%) sensíveis e seis (35.3%) amostras com sensibilidade intermediária. Apesar das porcentagens de sensibilidade serem semelhantes pelas duas técnicas, os resultados de CIM não correspondem na uma mesma amostra. Estes resultados mostraram que há uma urgente necessidade de padronização dos valores considerados como parâmetros para inibição do crescimento da levedura. Portanto, um método simples e eficiente deveria ser usado rotina na prática de laboratório.


Subject(s)
Animals , Antifungal Agents/adverse effects , Cats , Dogs , Mycoses , Malassezia/isolation & purification
17.
Rev. Soc. Bras. Med. Trop ; 41(2): 200-201, mar.-abr. 2008.
Article in English | LILACS | ID: lil-484228

ABSTRACT

A case of invasive aspergillosis caused by Aspergillus niger in a lung transplant recipient is described. The patient presented hyperglycemia starting postoperatively, with other complications such as cytomegalovirus infection. The associated predisposing factors and other implications are discussed. Aspergillus niger seems to be a fungal species of low virulence that requires the presence of a severely immunosuppressed host to cause invasive disease.


Descreve-se um caso de aspergilose invasiva causada por Aspergillus niger em um paciente transplantado de pulmão com quadros hiperglicêmicos desde o pós-operatório e outras complicações como infecção por citomegalovírus. Os fatores predisponentes associados e outras implicações são discutidos. Aspergillus niger parece ser uma espécie fúngica de baixa virulência, necessitando a presença de um hospedeiro gravemente imunodeprimido para causar doença invasiva.


Subject(s)
Female , Humans , Middle Aged , Aspergillosis/etiology , Aspergillus niger/isolation & purification , Bronchitis/microbiology , Lung Diseases, Fungal/microbiology , Lung Transplantation/adverse effects , Tracheitis/microbiology , Aspergillosis/diagnosis , Bronchitis/diagnosis , Fatal Outcome , Immunocompromised Host , Lung Diseases, Fungal/diagnosis , Tracheitis/diagnosis
18.
Braz. j. vet. res. anim. sci ; 45(3): 174-179, 2008. ilus, tab
Article in Portuguese | LILACS | ID: lil-487885

ABSTRACT

Espécies fúngicas do gênero Aspergillus são frequentemente associadas com alta mortalidade de aves marinhas em cativeiro. Tendo em vista que a aspergilose geralmente é adquirida pela inalação dos propágulos fúngicos presentes no ar, o estudo objetivou avaliar a qualidade do ar quanto às espécies de Aspergillus, das instalações internas de um centro de reabilitação de animais marinhos que frequentemente recebe pingüins, gaivotas, albatrozes e petréis acometidos por alguma moléstia. Oitenta e um dias de colheitas foram realizados distribuídos em um período de aproximadamente dois anos, através da exposição de placas de Petri contendo Agar Sabouraud dextrose acrescido de cloranfenicol no ambiente, as quais foram posteriormente incubadas a 25ºC. As colônias identificadas como pertencentes ao gênero Aspergillus, foram classificadas quanto à espécie através da avaliação macro e micro morfológica associada a uma chave de identificação. Foram obtidos 43 isolados classificados em sete espécies distintas, sendo A. fumigatus a predominante correspondendo a 27,9%, seguida de A. niger, A. flavus e outras quatro espécies de Aspergillus sp., demonstrando que as aves marinhas estão expostas a espécies fúngicas com potencial patogênico, o que enfatiza a necessidade de um controle microbiológico no ambiente onde são mantidos os animais em cativeiro.


Aspergillosis in captivity seabirds is often associated with elevated rates of mortality. The infection is usually acquired by inhalation of airborne fungal conidia. The aim of this study was to evaluate the presence of Aspergillus species in the indoor environment of a rehabilitation centre for marine animals in Southern Brazil. This centre continuously receives injured penguins, seagulls, albatrosses and petrels. Petri dishes plates with Agar Sabouraud dextrose and chloramphenicol were left open for 15 minutes in 3 distinct points in the rehabilitation centre and then incubated at 25ºC. During a period of two years the indoor air was sampled in 81 occasions. A total of 43 isolates belonging to 7 different Aspergillus species were recovered. Aspegillus fumigatus was the predominant species (27.9%), followed by A. niger (25.6%), and A. flavus (16.3%). Four other Aspergillus species were isolated. This study demonstrates that seabirds were exposed to pathogenic Aspergillus species in our rehabilitation centre, reinforcing the need for a strict microbiology control of the indoor air in the captivity environment.


Subject(s)
Animals , Air Pollution , Aspergillus/isolation & purification , Aspergillosis/diagnosis , Marine Fauna , Spheniscidae/microbiology
19.
Braz. j. vet. res. anim. sci ; 44(6): 441-443, 2007. ilus
Article in Portuguese | LILACS | ID: lil-510475

ABSTRACT

A esporotricose é uma micose subcutânea causada pelo fungo dimórfico Sporothrix schenckii. Este artigo descreve o primeiro caso de esporotricose óssea e cutânea, em canino, na cidade de Pelotas, Rio Grande do Sul. O animal apresentava lesões ulceradas e crostosas, há aproximadamente três anos no plano nasal e membro torácico direito, dispnéia e apatia. Para confirmação do diagnóstico, foram realizados exames micológico, histopatológico, radiológico e hematológico. O animal foi tratado durante três meses com 10mg/kg de itraconazol,por via oral, obtendo-se a cura das lesões. Este estudo alerta clínicos de pequenos animais para a ocorrência desta micose em caninos na região de Pelotas, RS.


The sporotrichosis is a subcutaneous mycosis caused by dimorphic fungus Sporothrix schenckii. This article describes the first cutaneous and osseous sporotrichosis case in canine in the Pelotas city, Rio Grande do Sul. The animal presented crusts and ulcerated lesions,approximately the three years in the nasal plan and right hind-foot,dispneic and apathy. Mycological, histopathological, radiological and hematological diagnosis was realized. The animal was treated by three months with itraconazole, administered orally at a dosage of 10mg/kg, until lesions disappeared. This study alert small animals clinicians for the occurrence of this mycosis in dogs in the region of Pelotas, RS.


Subject(s)
Animals , Dogs , Sporotrichosis/diagnosis , Sporotrichosis/prevention & control , Itraconazole/administration & dosage , Sporothrix/isolation & purification
20.
Ciênc. rural ; 34(6): 1961-1963, nov.-dez. 2004.
Article in Portuguese | LILACS | ID: lil-389008

ABSTRACT

A esporotricose é uma micose subcutânea, causada pelo fungo dimórfico Sporothrix schenckii. O presente estudo descreve a ocorrência de esporotricose felina na cidade de Pelotas (Rio Grande do Sul - Brasil), e a transmissão para um atendente da clínica veterinária, ocasionada pela arranhadura do animal doente. O felino apresentava deformação do espelho nasal e lesões cutâneas, enquanto o humano apresentava uma lesão ulcerada na região metacarpiana dorsal esquerda. Foram colhidas crostas e/ou exsudato das lesões do felino e do atendente para diagnóstico micológico, os quais foram cultivados em ágar Sabouraud dextrose acrescido de cloranfenicol e incubados a 25 e 37ºC, durante 10 dias. O isolamento do S. schenckii confirmou o diagnóstico clínico de esporotricose cutânea disseminada no felino e cutânea localizada no atendente. Esta nota pretende alertar profissionais relacionados à clínica de pequenos animais quanto à existência da doença e o alto risco de transmissão pela mordedura e/ou arranhadura de animais infectados.


Subject(s)
Cats , Cat-Scratch Disease/microbiology , Mycoses , Zoonoses
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