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1.
Braz. j. microbiol ; 49(3): 668-674, July-Sept. 2018. tab, graf
Article in English | LILACS | ID: biblio-951814

ABSTRACT

Abstract The virulence genes in invasive aspergillosis (IA) have not been analyzed adequately. The present study was designed to evaluate the expression of gpaB and sidA genes, which are important virulence genes in Aspergillus spp. from bronchoalveolar lavage (BAL) samples. Direct examination and culture on Czapek Agar and Sabouraud Dextrose Agar media were performed for 600 BAL specimens isolated from patients with possible aspergillosis. A Galactomannan ELISA assay was also carried out. The expression levels of the gpaB and sidA genes in isolates were analyzed using quantitative real-time PCR (qRT-PCR). We identified 2 species, including Aspergillus flavus (A. flavus) and Aspergillus fumigatus (A. fumigatus) in 25 positive samples for invasive aspergillosis as validated using GM-ELISA. A. flavus is the main pathogen threatening transplant recipients and cancer patients worldwide. In this study, A. flavus had low levels of the gpaB gene expression compared to A. fumigatus (p = 0.006). The highest sidA expression was detected in transplant recipients (p = 0.05). There was no significant correlation between sidA expression and underlying disease (p = 0.15). The sidA and gpaB gene expression patterns may provide evidence that these virulence genes play important roles in the pathogenicity of Aspergillus isolates; however, there are several regulatory genes responsible for the unexpressed sidA and gpaB genes in the isolates.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Aspergillosis/microbiology , Aspergillus flavus/metabolism , Aspergillus flavus/pathogenicity , Aspergillus fumigatus/metabolism , Aspergillus fumigatus/pathogenicity , Bacterial Proteins/metabolism , Aspergillus flavus/isolation & purification , Aspergillus flavus/genetics , Aspergillus fumigatus/isolation & purification , Aspergillus fumigatus/genetics , Bacterial Proteins/genetics , Virulence
2.
Pesqui. vet. bras ; 36(7): 630-633, jul. 2016. ilus
Article in Portuguese | LILACS, VETINDEX | ID: lil-794772

ABSTRACT

Este trabalho descreve um caso de infecção mista por pox vírus e Aspergillus fumigatus em Bubo virginianus (coruja jacurutu). A ave, um macho adulto, foi encaminhada ao Núcleo de Reabilitação da Fauna Silvestre do Instituto de Biologia da Universidade Federal de Pelotas (NURFS/CETAS/UFPEL). Apresentava bom estado corporal, estava ativa, porém com incapacidade de voo. Após três dias apresentou lesões crostosas e de aspecto verrucoso na superfície dorsal das patas. Havia, também, nódulos de mesmo aspecto na pálpebra esquerda e na cera. A ave morreu após 15 dias de sua chegada ao NURFS e foi necropsiada no Laboratório Regional de Diagnóstico da Faculdade de Veterinária da Universidade Federal de Pelotas (LRD/UFPel). Histologicamente, as lesões verrucosas caracterizavam-se por hiperplasia do epitélio e nas células das camadas basal, espinhosa, granular e córnea havia corpúsculos de inclusão intracitoplasmáticos do tipo Bollinger. Na microscopia eletrônica foram visualizadas partículas virais características de pox vírus, incluindo Bubo virginianus como um hospedeiro do vírus. Havia, ainda, infiltrado inflamatório de células mononucleares e focos de colônias bacterianas na derme. Nos pulmões havia congestão e presença de granulomas com hifas fúngicas, que pela técnica de Grocott, apresentaram ramificação dicotômica compatível com Aspergillus spp., identificado na cultura como A. fumigatus. O diagnóstico de infecção por avipoxvirus pode contribuir para estudos relacionados com a ocorrência desta doença nas populações de vida livre e como informação auxiliar para o manejo e conservação desta espécie. Sugere-se, ainda, a inclusão do uso de raios-X nos protocolos de centros de reabilitação como o diagnostico de aspergilose em aves rapinantes com bom estado corporal, porém incapazes de voar.(AU)


This paper describes a case of mixed infection by pox virus and Aspergillus fumigatus in Bubo virginianus (Owl Jacurutu). An adult male Bubo virginianus was referred to the Núcleo de Reabilitação da Fauna Silvestre, Instituto de Biologia, Universidade Federal de Pelotas (NURFS/CETAS/UFPEL). The owl was active and had a good body condition but with flight disability. After three days of their admission at NURFS the owl developed crusty and verrucous lesions at the dorsal surface of their feet. Also it had nodes on the left eyelid and cera with the same aspect. The owl died 15 days after its arrival. Necropsy and histopatological examination were carried out. The warty lesions had hyperplasia of the epithelium and intracytoplasmic Bollinger-like inclusion bodies in the basal, spinal, granulosa layer and cornea. Viral particles characteristic of pox viruses were shown by electron microscopy. This case includes Bubo virginianus as a host of the avipoxvirus. There were also a mononuclear inflammatory cell infiltrate and bacterial colonies in the dermis. In the lugs, there was congestion and presence of granulomas with intralesional fungal hyphae. With the Grocott stain those structures showed dichotomous branching which was later identified in mycological culture as characteristic for A. fumigates. The diagnosis of avipoxvirus infection can contribute to studies related to the occurrence of this disease in free-living populations and as auxiliary information for the management and conservation of this raptor species. It is also suggested to include the use of X-rays in rehabilitation center protocols as screening test to diagnose aspergillosis in birds of prey with good body condition but inability to fly.(AU)


Subject(s)
Animals , Male , Aspergillus fumigatus/pathogenicity , Poxviridae Infections/physiopathology , Poxviridae Infections/veterinary , Strigiformes/microbiology , Aspergillosis/veterinary , Avipoxvirus , Yaws/veterinary
3.
Pesqui. vet. bras ; 35(6): 573-578, June 2015. tab, graf
Article in English | LILACS | ID: lil-766180

ABSTRACT

This study aimed to evaluate the efficacy of detection of anti-Aspergillus fumigatus antibodies in captive penguins by double radial agar gel immunodiffusion (AGID) for the aspergillosis diagnosis. We included 134 Magellanic penguins (Spheniscus magellanicus) in rehabilitation at the Center for Recovery of Marine Animals (CRAM / FURG). All of them were monitored by AGID weekly until its final destination (death or release), totalizing 660 serum samples studied. All animals were clinically accompanied and post-mortem examinations was performed in penguins that died during the studied period. A total of 28% (37/134) of the penguins died, 89.2% (33/37) due to aspergillosis, 11% (4/37) by other causes and 97 were released. From the 33 animals with proven aspergillosis, 21 presented anti- A. fumigatus antibodies by AGID, being the average interval between death and positive AGID 16.4 days. Twelve animals with negative serology died of aspergillosis. The sensitivity and specificity rates were 63.6% and 95% respectively, and the positive and negative predictive values were 80.7% and 88.9% respectively. These data demonstrate that the serological monitoring for detection of antibodies by AGID can be an important tool for the diagnosis of aspergillosis in penguins.


Este estudo teve como objetivo avaliar a eficácia da detecção de anticorpos anti- Aspergillus fumigatus em pinguins em cativeiro por imunodifusão radial dupla em gel de ágar (IDGA) para diagnóstico da aspergilose. Foram incluídos 134 pingüins de Magalhães (Spheniscus magellanicus) em reabilitação no Centro de Recuperação de Animais Marinhos (CRAM/FURG), que foram monitoradas por IDGA, semanalmente, até o seu destino final (morte ou de liberação), totalizando 660 amostras de soro estudadas. Todos os animais foram acompanhados clinicamente e exames post mortem foram realizados em pingüins que vieram a óbito durante o período de estudo. Um total de 28% (37/134) dos pinguins foram a óbito, 89,2% (33/37) de aspergilose, 11% (4/37) de outras causas, e 97 foram liberados. A partir dos 33 animais com aspergilose comprovada, 21 apresentaram anticorpos anti- A. fumigatus por IDGA, sendo o intervalo médio entre a morte e IDGA positivas 16,4 dias. Doze animais com sorologia negativa vieram a óbito por aspergilose. As taxas de sensibilidade e especificidade foram de 63,6% e 95%, respectivamente, e os valores preditivos positivos e negativos foram de 80,7% e 88,9 %, respectivamente. Estes dados demonstram que o monitoramento sorológico para detecção de anticorpos por IDGA pode ser uma ferramenta importante no diagnóstico de aspergilose em pinguins.


Subject(s)
Animals , Aspergillus fumigatus/pathogenicity , Aspergillosis/veterinary , Spheniscidae/immunology , Animals, Zoo , Antibodies, Fungal/immunology , Autopsy/veterinary , Immunodiffusion/veterinary , Mycoses
4.
Bol. micol. (Valparaiso En linea) ; 28(2): 48-52, dic. 2013. ilus, tab
Article in Spanish | LILACS | ID: lil-708086

ABSTRACT

Introducción: La queratitits micótica puede ser provocada por una amplia variedad de especies, tanto por hongos filamentosos como levaduras. Objetivo: Conocer las especies involucradas en queratitits micótica durante el decenio 2003-2013 en la ciudad de Valparaíso. Materiales y método: Se revisaron los casos de queratitis micótica diagnosticados durante el periodo 2003-2013 en la cátedra de Micología de la Universidad de Valparaíso. Las muestras fueron tomadas con tórulas estériles, las cuales fueron sembradas en agar sabouraud y una vez obtenido el desarrollo de las especies se traspasaron a medios de cultivo especiales. La identificación se realizó por morfofisiología y en el caso de Candida además por pruebas bioquímicas. Resultados: Se diagnosticaron 10 pacientes con queratitis micótica, de ellos 6 fueron hombres. 8 pacientes tenían el antecedente de lesión traumática corneal. Las especies más frecuentes fueron Aspergillus fumigatus y Fusarium oxysporum. También se aislaron especies como Fusarium dimerumy Exophiala jeanselmei. Conclusión: De los 10 casos de queratitis micótica diagnosticados, la mayoría tenía el antecedente de lesión traumática corneal. Los géneros más aislados fueron Aspergillus y Fusarium.


Introduction: Fungal keratitis can be caused by a wide variety of species, either filamentous as yeast fungi. Objective: To determine the species involved in fungal keratitis during the decade 2003-2013 in the city of Valparaiso. Materials and Methods: The cases of fungal keratitis diagnosed in the depar tment of Mycology, University of Valparaiso, were reviewed for the period 2003-2013. Samples were taken with sterile swabs, which were seeded in Sabouraud agar and after obtaining the development of species, were transferred to special culture media. Identification was performed by morphophysiology and in the case of Candida further biochemical tests. Results: 10 patients were diagnosed with fungal keratitis, of which 6 were men. 8 patients had a history of traumatic corneal injury. The most frequent species were Aspergillus fumigatus and Fusarium oxysporum. Species Fusarium dimerum and Exophiala jeanselmei were also isolated. Conclusion: Of the 10 cases of fungal keratitis diagnosed, most had a history of traumatic corneal injury. The most isolated genus were Aspergillus and Fusarium.


Subject(s)
Humans , Male , Adult , Agar , Aspergillus fumigatus/pathogenicity , Candida , Candida/pathogenicity , Cornea/microbiology , Cornea/pathology , Fusarium/pathogenicity , Keratitis/diagnosis , Keratitis/microbiology , Chile , Environment , Fungi/pathogenicity
5.
Pesqui. vet. bras ; 33(9): 1071-1075, set. 2013. ilus, tab
Article in English | LILACS | ID: lil-694053

ABSTRACT

Carcass inspection is important for the detection of certain diseases and for monitoring their prevalence in slaughterhouses. The objective of this study was to assess the occurrence of aspergillosis caused by Aspergillus fumigatus in commercial poultry, through mycological and histopathological diagnosis, and to verify the causal association between the aspergillosis diagnosis criteria and condemnation due to airsacculitis in broilers through a case-control study. The study was carried out with 380 samples. Lungs were collected from broilers that were condemned (95) or not condemned (285) due to airsacculitis directly from the slaughter line. Forty-six (12%) lung samples were positive for A. fumigatus in mycological culture. Among all samples, 177 (46.6%) presented histopathological alterations, with necrotic, fibrinous, heterophilic pneumonia; heterophilic pneumonia and lymphoid hyperplasia being the most frequent. Out of the 380 lungs analyzed, 65.2% (30) showed histopathological alterations and isolation of fungi. The statistical analysis (McNemar's chi-square test) indicated a significant association between the presence of histopathological lesions and the isolation of A. fumigatus. Mycological cultivation and histopathological diagnosis increase the probability of detecting pulmonary alterations in birds condemned by the Final Inspection System, which suggests that such diagnostic criteria can improve the assessment and condemnation of birds affected by airsacculitis.


Nos abatedouros, a inspeção das carcaças é fundamental para a detecção e monitoramento da prevalência de certas doenças. Os objetivos do trabalho foram avaliar a ocorrência de aspergilose causada por Aspergillus fumigatus em aves comerciais através do diagnóstico micológico e histopatológico e verificar a possibilidade de associação causal entre os critérios de diagnóstico de aspergilose e condenação por aerossaculite em frangos de corte através de um estudo de caso-controle. O estudo foi realizado com 380 amostras. Foram coletados pulmões de frangos condenados (95) e não condenados (285) por aerossaculite, diretamente na linha de abate de um frigorífico. Quarenta e seis (12%) amostras de pulmão foram positivas na cultura micológica. Do total de amostras, 177 (46,6%) apresentaram alterações histopatológicas, sendo os mais frequentes pneumonia fibrinoheterofílica necrótica, pneumonia heterofílica e hiperplasia linfóide. Do total de 380 pulmões analisados, 65,2% (30) apresentaram alterações histopatológicas e isolamento fúngico. A relação entre a presença de lesões histopatológicas e isolamento de A. fumigatus testada por McNemar indicou que houve associação significativa entre a presença de alterações histopatológicas e o isolamento de A. fumigatus. O cultivo micológico e o exame histopatológico aumentam as chances de se detectar alterações pulmonares em aves condenadas pelo Sistema de Inspeção Final do que nas aves normais, sugerindo que tais critérios de diagnóstico são eficazes para aprimorar a avaliação e condenação de aves por aerossaculite.


Subject(s)
Animals , Aspergillus fumigatus/pathogenicity , Aspergillosis/veterinary , Chickens/parasitology , Abattoirs/instrumentation , Case-Control Studies , Respiratory Tract Infections/veterinary
6.
Bol. micol. (Valparaiso En linea) ; 27(2): 55-60, dic. 2012. ilus
Article in Spanish | LILACS | ID: lil-679656

ABSTRACT

Se presenta un caso de coinfección pulmonar por Aspergillus fumigatus y Pneumocystis jirovecii en un paciente con VIH-SIDA. Se diagnosticó con TAC pulmonar, visualización directa con KOH 20 por ciento, tinción de Gomori-Grocott y cultivo del LBA, galactomanano en sangre y de LBA. Se discuten los factores de riesgo, diagnóstico y tratamiento para cada infección.


We report a case of lung coinfection by Aspergillus fumigatus and Pneumocystis jirovecii in a patient with HIV-AIDS. Was diagnosed with lung TAC, direct visualization with KOH 20 percent, Gomori- Grocott staining and culture of BAL, galactomannan in blood and BAL. We discuss risk factors, diagnosis and treatment for each infection.


Subject(s)
Humans , Male , Middle Aged , Aspergillus fumigatus/pathogenicity , HIV , Pneumocystis Infections/diagnosis , Pneumocystis Infections , Pneumocystis Infections/therapy , Pneumocystis carinii , Pneumocystis Infections
7.
Arq. int. otorrinolaringol. (Impr.) ; 15(2): 245-248, abr.-jun. 2011. ilus
Article in English, Portuguese | LILACS | ID: lil-594673

ABSTRACT

Introdução: Mastoidite fúngica por Aspergillus fumigatus ocorre predominantemente em pacientes imunossuprimidos. O diagnóstico geralmente é difícil e a doença é potencialmente fatal. O tratamento consiste em terapia antifúngica, desbridamento cirúrgico e correção da imunossupressão. Relato do Caso: Este artigo trata-se de um relato de um caso de mastoidite fúngica em um paciente com síndrome da imunodeficiência adquirida (SIDA). O tratamento realizado foi o cirúrgico associado à terapia antifúngica. O nervo facial deste paciente não estava afetado, o que não exclui complicações potencialmente fatais da mastoidite.


Introduction: Fungal mastoidits by Aspergillus fumigates predominantly occurs in immunosuppressed patients. Diagnosis is usually hard and disease is potentially fatal. Treatment is comprised of antifungal therapy, surgical debridement and immunosuppression correction. Case Report: This article reports a case of fungal mastoiditis in a patient with acquired immunodeficiency syndrome (AIDS). The treatment performed was that of surgery associated with antifungal therapy. The patient's facial nerve was not affected, what does not exclude potentially fatal complications of mastoiditis.


Subject(s)
Humans , Male , Adult , Acquired Immunodeficiency Syndrome , Aspergillus fumigatus/pathogenicity , Immunocompromised Host , Mycoses , Mastoiditis/microbiology
8.
Rio de Janeiro; s.n; 2011. 137 p. ilus, graf.
Thesis in Portuguese | LILACS | ID: lil-668610

ABSTRACT

Aspergillus fumigatus é o principal agente etiológico da aspergilose invasiva, infecção fúngica oportunista com altas taxas de mortalidade afetando, principalmente, pacientes com neutropenia profunda e prolongada. Durante o processo de invasão e disseminação características desta infecção sistêmica, os conídios do fungo inalados e não eliminados pelas células do sistema imune inato diferenciam-se em hifas que, por sua vez, são angioinvasivas. Pouco se conhece sobre as moléculas da parede celular envolvidas na patogênese do A. fumigatus e/ou secretadas por este patógeno. Neste contexto, este trabalho procura ampliar o entendimento desta doença através do estudo de proteínas diferencialmente expressas na superfície de A. fumigatus durante a morfogênese. Foi utilizada uma abordagem proteômica e foram estudados extratos de superfície de células de A. fumigatus em diferentes estágios durante o processo de filamentação. Estas células foram denominadas, de acordo com o tempo de cultivo e a morfologia, como: TG6h (tubo germinativo), H12h ou H72h (hifas). As proteínas de superfície celular foram extraídas, a partir de células intactas, por tatamento brando com o agente redutor DTT (ditiotreitol). Observou-se que o perfil funcional das proteínas expressas por H12h e H72h foi similar, com exceç~çao de proteínas relacionadas à resposta ao estresse, enquanto o perfil para TG6h apresentou diferenças significativas para vários grupos funcionais de proteínas quando comparado às hifas. Desta forma, foram realizados experimentos de proteômica diferencial entre tubo germinativo (TG6h) e a hifa madura (H72h), pela técnica de DIGE (differential gel electrophoresis). Os resultados revelaram que entre as proteínas diferencialmente expressas, aquelas relacionadas às vias de biossíntese e outras denominadas multifuncionais encontram-se superexpressas em TG6h. Em relação às proteínas de resposta a estresse, observou-se que algumas HSPs eram mais expressas neste morfotipo...


Aspergillus fumigatus is the main etiologic agent of invasive aspergillosis (IA), a opportunistic a life-threatening disease for immunocompromised hosts, especially those with acute and prolonged neutropenia. During the invasion and dissemination, which occurs in this systemic infection, the A. fumigatus conidia, after its inhalation, germinates into angioinvasive hyphae in case the innate immune response fails in eliminate these cells. Little is known about the cell wall molecules and/or the secreted proteins involved on the A. fumigatus pathogenesis, at this context the present work aims to amplify the knowledge about the aspergillosis by studying the differentially surface proteins of A. fumigatus during the filamentation process. These cells were denominated according to their morphology and their growtn time as: TG6h (germ tubes), H12h and H72h (hyphae). The surface proteins were mildly extracted from intact cells using the reducing agent DTT (dithiothreitol). The functional profile of the H12h and H72h were similar except for the stress response proteins, while the TG6h presented significant differences for several functional groups. On this base, the DIGE (differential gel electrophoresis) was performed using the surface extracted proteins of the germ tubes (TG6h) and mature hyphae (H72h) cells. The results indicate that multiple functional proteins and proteins related to the biosynthesis pathways were overexpressed at TG6h. Some stress response proteins as the HSPs were overexpressed on this morphotype while the MnSOD, oxidative stress responsive protein, was most abundant at the hyphae. PhiA, an integrant protein of the cell wall, was the only protein with a secretion signal sequence. All other proteins identified on the cell surface lack an identifiable secretion sign, and are denominated atypical proteins. The plasma membrane integrity was verified after the mild extraction using DTT, and also the biotinylation of the cell extracted proteins...


Subject(s)
Aspergillus fumigatus/pathogenicity , Fungal Proteins/analysis , Dithiothreitol , Two-Dimensional Difference Gel Electrophoresis/methods , Hyphae/physiology , Membrane Proteins , Cell Wall , Proteome/analysis , Proteomics/methods
9.
Med. infant ; 15(4): 336-341, dic. 2008. graf, tab
Article in Spanish | LILACS | ID: lil-541264

ABSTRACT

Durante las últimas dos décadas se ha obsevado un aumento en la frecuencia de las infecciones fúngicas invasivas (IFI). Este incremento estuvo directamente relacionado a un ascenso en el número de pacientes con enfermedades de base inmunosupresoras como el cáncer, transplantados de médula ósea y órganos sólidos, inmunodeficiencias congénitas, infectados por el VIH y de recién nacidos prematuros. De la misma manera el incremento en la indicación de tratamientos inmunosupresores como la quimioterapia o el uso de corticoides fueron factores importanes que determinaron este aumento. La morbimortalidad de los niños con IFI es considerable. Si bien Candida albicans es el patógeno que más frecuentemente se aísla en niños con IFI, la aparición de cepas de Candida diferentes de C. albicans, Aspergillus spp y recientemente de Zygomicetes, dan un nuevo marco epidemiológico a las IFI en la actualidad. En los ultimos años aumento en un 30 por ciento el número de fármacos antifúngicos disponibles. La generación de más y mejores drogas permitió perfeccionar la terapia de estas infecciones.


Subject(s)
Humans , Male , Child , Female , Aspergillus fumigatus/classification , Aspergillus fumigatus/pathogenicity , Candida , Epidemiology , Infections/therapy
10.
Prensa méd. argent ; 95(8): 530-536, oct. 2008. ilus
Article in Spanish | LILACS | ID: lil-521981

ABSTRACT

Se presenta un paciente que fue explorado quirúrgicamente por presentar un tumor del retroperitoneo sugiriendo un aspergiloma abdominal. Esta patología ha aumentado en las últimas décadaas y puede ocurrir en pacientes con HIV infectados, en inmuno-deprimidos con quimioterapia, aquellos con transplantes de hígado, en los transplantados de médula ósea, en enfermos con alteraciones hematológicas malignas, en los transplantados de pulmón y en los transplantados cardíacos. La aspergilosis invasora se asocia con una elevada mortalidad a pesar de un adecuado y oportuno tratamiento.


Subject(s)
Humans , Male , Middle Aged , Amphotericin B/therapeutic use , Aspergillus fumigatus/pathogenicity , Early Diagnosis , Abdominal Neoplasms/surgery , Abdominal Neoplasms/pathology , Gastrointestinal Tract/pathology
11.
Bol. micol ; 21: 85-89, dic. 2006. ilus
Article in Spanish | LILACS | ID: lil-476901

ABSTRACT

Se describe un caso basado en un diagnóstico clínico, radiológico, endoscópico e histológico de una sinusitis crónica no invasiva en un paciente femenino de 40 años, con historia de rinorrea purulenta unilateral derecha de varios años de evolución. El TAC mostró velamiento del seno maxilar y calcificaciones con diagnóstico probable de infección micótica, sin embargo, no se solicitaron cultivos micológicos. Se indicó cirugía del seno maxilar mediante antrotomía media bajo endoscopia. El diagnóstico histológico reveló abundantes hifas septadas ramifi-cadas no invasivas de la mucosa sinusal con la presencia de algunas estructuras morfológicas asexuales que orientaron hacia un grupo taxonómico específico; Aspergillus sección Fumigati (posiblemente A. fumigatus). La evolución postoperatoria fue rápida y satisfactoria, sin requerir uso de antifúngicos, sólo aseos frecuentes de la cavidad operada hasta obtener una mucosa indemne y ventilada.


A case based on a clinical, radiologic, endoscopic and histologic diagnosis of a chronic non invasive sinusitis in a female 40 aged patient suffering from a purulent unilateral right rhinorrea which had been developing for several years is herein described. TAC revealed acertain masking of the maxilar sinus and calcifications which denoted a probable micotic infection yet mycological cultivations were not demanded. Surgery on the maxilar sinus by means of a medium antrotomy under endoscopy was indicated. The histologic diagnosisrevealed abundant non invasive septated, branched hyphae in the sinusal mucosa as well as some asexualmorphological structures which pointed to a particular taxonomic group; Aspergillus section Fumigati (possiblyA.fumigatus). Postoperatory evolution was fast and satisfactory since there was no need of using antifungaldrug, just frequent washing of the operated cavity until an undamaged and ventilated mucosa could be reached.


Subject(s)
Humans , Female , Adult , Aspergillus/classification , Aspergillus/pathogenicity , Aspergillosis/diagnosis , Maxillary Sinusitis/surgery , Maxillary Sinusitis , Maxillary Sinusitis , Aspergillus fumigatus/pathogenicity , Chile , Fungi/pathogenicity
14.
Rev. chil. enferm. respir ; 14(3): 157-63, jul.-sept. 1998. ilus
Article in Spanish | LILACS | ID: lil-274445

ABSTRACT

Los aspergillus son hongos que se encuentran ampliamente diseminados por el ambiente. Pueden producir colonización, alergia e invasión. Los casos pediátricos descritos en la literatura son escasos y la mayoría en pacientes inmunocomprometidos. Describimos un caso de aspergillosis pulmonar invasiva en un paciente de un año y medio de edad, aparentemente sano que presenta una bronconeumonia probablemente de etiología mixta, luego de la cual evoluciona con bronquitis obstructiva persistente, hipogammaglobulinemia moderada y que desarrolla una neumopatía de evolución tórpida de la que fallece. En cultivo de aspirado traqueal se aisla Aspergillus fumigatus y la anatomía patológica confirma el diagnóstico


Subject(s)
Humans , Male , Infant , Aspergillosis/diagnosis , Aspergillus fumigatus/isolation & purification , Lung Diseases, Fungal/diagnosis , Aspergillosis/drug therapy , Aspergillosis/etiology , Aspergillus fumigatus/pathogenicity , Bronchopneumonia/complications , Lung/pathology , Trachea/microbiology
15.
Rev. argent. radiol ; 61(3): 165-71, jul.-sept. 1997. ilus
Article in Spanish | LILACS | ID: lil-208007

ABSTRACT

La aspergilosis es una infección oportunista, potencialmente letal. Se describen sus distintas formas de presentación con su correlación clínico-radiológica y anatomopatológica. Se examinaron retrospectivamente 5.580 tomografías de tórax (1987-1995) de pacientes internados con diagnóstico de aspergilosis, encontrándose 15 pacientes con aspergilosis confirmada. El compromiso pulmonar con Aspergillus fumigatus es variado y ampliamente dependiente del estado inmunológico del paciente y de su grado de respuesta a la infección, así como también del estado pulmonar preexistente. La TC es un excelente método para el temprano reconocimiento y pronta institución terapéutica en el paciente inmunocomprometido, así como en el control de su evolución


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aspergillosis/diagnosis , Aspergillosis, Allergic Bronchopulmonary/diagnosis , Tomography, X-Ray Computed , Aspergillosis/classification , Aspergillus fumigatus/pathogenicity , Aspergillosis, Allergic Bronchopulmonary/physiopathology , Aspergillosis, Allergic Bronchopulmonary , Asthma/complications , Bronchiectasis , Bronchiectasis/etiology , Diagnostic Imaging , Retrospective Studies
16.
Rev. argent. micol ; 20(1/3): 5-11, 1997. ilus
Article in Spanish | LILACS | ID: lil-216231

ABSTRACT

Se presenta el análisis de 122 casos de aspergilosis broncopulmonar diagnosticados entre los años 1990 y 1994, en el Departamento de Micología del Instituto Nacional de Higiene y Medicina Tropical de Guayaquil. Todos ellos presentaban anticuerpos frente al antígeno de A. fumigatus demostrables por inmunodifusión por la técnica de Ouchterlony. El estudio micológico en muestras de esputo fue realizado en 60 enfermos. Se señalan los parámetros considerados para el diagnóstico, las lesiones radiológicas observadas y los tratamientos instituídos


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Adolescent , Adult , Middle Aged , Aspergillus fumigatus/drug effects , Aspergillosis, Allergic Bronchopulmonary/diagnosis , Aspergillus fumigatus/immunology , Aspergillus fumigatus/pathogenicity , Aspergillosis, Allergic Bronchopulmonary/etiology , Aspergillosis, Allergic Bronchopulmonary/drug therapy , Ecuador , Hemoptysis/etiology , Hemoptysis/mortality , Ketoconazole/therapeutic use , Lung Diseases, Fungal/complications , Tuberculosis, Pulmonary/complications
17.
Rev. méd. Chile ; 122(12): 1367-71, dic. 1994. tab, ilus
Article in Spanish | LILACS | ID: lil-144173

ABSTRACT

The earth of ornamental plants is one of the main reservoirs of Aspergillus type of fungi in hospital areas. We studied 174 ornamental interior plants from a hospital at Santiago. Samples were obtained from the soil surface and sowed in Sabouraud-glucose agar, adding streptomycin and G-penicillin. After 72 h of culture, at least one strain of Aspergillus was isolated from 140 samples (80.5 percent). The most frequently isolated strain was A fumigatus (129 samples), followed by A miger (75 samples). A fumigatus and A niger were the only isolated strains in 65 and 11 samples respectively. These findings confirm that ornamental plants can be important reservoirs of Aspergillus strains, a potential infectious agent for immunocompromised patients in hospital areas


Subject(s)
Plants/microbiology , Aspergillus/isolation & purification , Cross Infection/microbiology , Soil Microbiology , Aspergillosis/prevention & control , Aspergillus flavus/pathogenicity , Aspergillus fumigatus/pathogenicity , Aspergillus niger/pathogenicity
19.
Rev. argent. micol ; 16(1): 11-4, ene.-abr. 1993. tab
Article in Spanish | LILACS | ID: lil-124788

ABSTRACT

Los hongos oportunistas son agentes causales de infecciones de córnea en individuos sanos que, frecuentemente, realizan tareas al aire libre y están expuestos a sufrir traumatismos por algún tipo de vegetal. También afectan ojos con alteraciones físicas predisponentes. Se estudiaron 65 pacientes con lesiones de córnea durante el período comprendido entre enero de 1989 y julio de 1992. Las técnicas de laboratorio que se realizaron consistieron en el examen directo de las muestras clínicas y los cultivos. Del total de materiales sólo 9 (13,85%) mostraron la presencia de hongos. El mayor porcentaje de aislamiento correspondió a Fusarium solani (7.69%) seguido por Aspergilus fumigatus (3.08%), Acremonium s.p. (1.54%), Cladosporium s.p. (1.54%). Los pacientes fueron tratados con miconazol, ketoconazol y un caso con natamicina que es la droga de elección para las infecciones oculares debidas a hongos. Merece destacarse la importancia de la búsqueda de estos hongos en infecciones oculares así como la rapidez en el diagnóstico del agente microbiano. De esta manera no sólo se acelera la cura de la afección sino que se reducen los riesgos de complicación y pérdida de la visión


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Eye Infections, Fungal/diagnosis , Keratitis/diagnosis , Acremonium/isolation & purification , Acremonium/pathogenicity , Aspergillus fumigatus/isolation & purification , Aspergillus fumigatus/pathogenicity , Cladosporium/analysis , Cladosporium/pathogenicity , Fusarium/isolation & purification , Fusarium/pathogenicity , Eye Infections, Fungal/etiology , Keratitis/epidemiology , Keratitis/etiology , Miconazole/therapeutic use , Natamycin/therapeutic use
20.
Alexandria Journal of Veterinary Sciences [AJVS]. 1993; 9 (3): 43-53
in English | IMEMR | ID: emr-27003

ABSTRACT

The pathogenicity of Candida albicans and Aspergillus fumigatus to the corena of both previously cortisonized and uncortisonized rabbit eyes was studied of uncortisonized animals for the tested fungal strain were low. While it was observed that the previously cortisonized animals were highly susceptible to such tested organisms. The clinical picture of the infected corneal tissue showed that there was characteristic pathognomonic lesions for each tested fungal pathogen. Histopathological erxamination of the infected corneal lesions revealed the presence of some pathological signs which emphasized the possibility of contracting such fungal infection


Subject(s)
Eye Infections, Fungal/pathology , Candida albicans/pathogenicity , Aspergillus fumigatus/pathogenicity , Rabbits
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