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1.
Braz. j. microbiol ; 46(2): 477-484, Apr-Jun/2015. tab
Article in English | LILACS | ID: lil-749709

ABSTRACT

One hundred and forty-one Candida species isolated from clinical specimens of hospitalized patients in Rio de Janeiro, Brazil, during 2002 to 2007, were analized in order to evaluate the distribution and susceptibility of these species to fluconazole. Candida albicans was the most frequent species (45.4%), followed by C. parapsilosis sensu lato (28.4%), C. tropicalis (14.2%), C. guilliermondii (6.4%), C. famata (2.8%), C. glabrata (1.4%), C. krusei (0.7%) and C. lambica (0.7%). The sources of fungal isolates were blood (47.5%), respiratory tract (17.7%), urinary tract (16.3%), skin and mucous membrane (7.1%), catheter (5.6%), feces (2.1%) and mitral valve tissue (0.7%). The susceptibility test was performed using the methodology of disk-diffusion in agar as recommended in the M44-A2 Document of the Clinical and Laboratory Standards Institute (CLSI). The majority of the clinical isolates (97.2%) was susceptible (S) to fluconazole, although three isolates (2.1%) were susceptible-dose dependent (S-DD) and one of them (0.7%) was resistant (R). The S-DD isolates were C. albicans, C. parapsilosis sensu lato and C. tropicalis. One isolate of C. krusei was resistant to fluconazole. This work documents the high susceptibility to fluconazole by Candida species isolated in Rio de Janeiro, Brazil.


Subject(s)
Humans , Antifungal Agents/pharmacology , Candida/drug effects , Candida/isolation & purification , Candidiasis/epidemiology , Cross Infection/epidemiology , Fluconazole/pharmacology , Brazil/epidemiology , Candida/classification , Candidiasis/microbiology , Cross Infection/microbiology , Disk Diffusion Antimicrobial Tests , Drug Resistance, Fungal
2.
Rev. Inst. Med. Trop. Säo Paulo ; 55(6): 371-376, Nov-Dec/2013. tab, graf
Article in English | LILACS | ID: lil-690344

ABSTRACT

SUMMARY Cryptococcosis is a severe systemic mycosis caused by two species of Cryptococcus that affect humans and animals: C. neoformans and C. gattii. Cosmopolitan and emergent, the mycosis results from the interaction between a susceptible host and the environment. The occurrence of C. neoformans was evaluated in 122 samples of dried pigeon excreta collected in 49 locations in the City of Cuiabá, State of Mato Grosso, Brazil, including public squares (n = 5), churches (n = 4), educational institutions (n = 3), health units (n = 8), open areas covered with asbestos (n = 4), residences (n = 23), factory (n = 1) and a prison (n = 1). Samples collected from July to December of 2010 were seeded on Niger seed agar (NSA). Dark brown colonies were identified by urease test, carbon source assimilation tests and canavanine-glycine-bromothymol blue medium. Polymerase chain reaction primer pairs specific for C. neoformans were also used for identification. Cryptococcus neoformans associated to pigeon excreta was isolated from eight (6.6%) samples corresponding to six (12.2%) locations. Cryptococcus neoformans was isolated from urban areas, predominantly in residences, constituting a risk of acquiring the disease by immunocompromised and immunocompetent individuals. .


RESUMO A criptococose é micose sistêmica potencialmente grave causada por duas espécies do gênero Cryptococcus que acometem tanto homens como animais: Cryptococcus neoformans e C. gattii. São infecções cosmopolitas e emergentes, resultantes da interação do hospedeiro - humano e animal versus meio ambiente. A proposta deste trabalho foi avaliar a ocorrência de C. neoformans em 122 amostras de excretas secas de pombos coletadas em 49 locais na cidade de Cuiabá, Estado do Mato Grosso, Brasil, incluindo: praças públicas (n = 5), igrejas (n = 4), instituições de ensino (n = 3), unidades de saúde (n = 8), áreas abertas exibindo cobertura de amianto (n = 4), conjuntos residenciais domiciliares (n = 23), uma fábrica (n = 1) e um presídio (n = 1). Semeadura de suspensão de amostras em meio ágar niger (NSA), identificação fenotípica por provas bioquímicas e teste em meio de canavanina-glicina-azul de bromotimol, das colônias isoladas com pigmentação marrom escura. Foi também utilizada a técnica da reação em cadeia da polimerase com pares de iniciadores específicos para identificação de C. neoformans. As amostras foram coletadas de julho a dezembro de 2010. Cryptococcus neoformans foi isolado em oito (6,6%) de 122 amostras correspondendo a seis (12,2%) dos 49 sítios analisados. Cryptococcus neoformans associado a excretas de pombos ocorre em áreas de Cuiabá, predominando em residências nas amostras analisadas, constituindo fator de risco potencial para aquisição da doença tanto para indivíduos imunocomprometidos como imunocompetentes. .


Subject(s)
Animals , Columbidae/microbiology , Cryptococcus neoformans/isolation & purification , Feces/microbiology , Brazil , Cryptococcus neoformans/genetics , Polymerase Chain Reaction
3.
Mem. Inst. Oswaldo Cruz ; 108(1): 126-129, Feb. 2013. tab
Article in English | LILACS | ID: lil-666058

ABSTRACT

In this study, we evaluated several techniques for the detection of the yeast form of Cryptococcus in decaying wood and measured the viability of these fungi in environmental samples stored in the laboratory. Samples were collected from a tree known to be positive for Cryptococcus and were each inoculated on 10 Niger seed agar (NSA) plates. The conventional technique (CT) yielded a greater number of positive samples and indicated a higher fungal density [in colony forming units per gram of wood (CFU.g-1)] compared to the humid swab technique (ST). However, the difference in positive and false negative results between the CT-ST was not significant. The threshold of detection for the CT was 0.05.10³ CFU.g-1, while the threshold for the ST was greater than 0.1.10³ CFU-1. No colonies were recovered using the dry swab technique. We also determined the viability of Cryptococcus in wood samples stored for 45 days at 25ºC using the CT and ST and found that samples not only continued to yield a positive response, but also exhibited an increase in CFU.g-1, suggesting that Cryptococcus is able to grow in stored environmental samples. The ST.1, in which samples collected with swabs were immediately plated on NSA medium, was more efficient and less laborious than either the CT or ST and required approximately 10 min to perform; however, additional studies are needed to validate this technique.


Subject(s)
Cryptococcus gattii/growth & development , Cryptococcus neoformans/growth & development , Microbial Viability , Specimen Handling/methods , Wood/microbiology , Colony Count, Microbial , Cryptococcus gattii/isolation & purification , Cryptococcus neoformans/isolation & purification , Environmental Microbiology
4.
Article in English | IMSEAR | ID: sea-162901

ABSTRACT

Aim: Considering the geographic expansion of Cryptococcus gattii, the aim of this study was to investigate hollows of living trees as a reservoir of C. gattii in Rio de Janeiro, Brazil. Place and Duration of the Study: In an urban quarter of Rio de Janeiro city, 80 samples of decaying wood were collected. In addition, 85 decaying wood samples were collected in the wild rainforest. The samples were analyzed at the Mycology Laboratory, Evandro Chagas Clinical Research Institute, Oswaldo Cruz Foundation, from 2008-2010. Methodology: Samples were collected by scraping the inner decaying wood of the hollows of the trunks of each tree. Pathogenic Cryptococcus species were identified by: brown colonies on niger seed agar (NSA) medium, thermotolerance at 35ºC, cycloheximide sensitivity, carbon and nitrogen assimilation tests performed by 32-Vitek System (Vitek ICB, bioMeriux, Durham, EUA). Canavanine-glycine-bromothymol blue medium (CGB) was used to determine the species of the isolates and the genotypes were determined by restriction fragment length polymorphism of URA5 gene. Results: After plating the samples on NSA, 584 colonies were obtained from the urban quarter. C. gattii VGI was identified in 98% of colonies, followed by C. neoformans VNI 2%. The positivity of the urban area was 7.8%. The concentrations of the fungi in hollows of ficus trees ranged from 50 to 56,250 colony-forming units per gram of sample (CFU/g). Conclusions: For the first time in Rio de Janeiro C. gattii VGI was isolated in a hollow of living tree.

5.
Mem. Inst. Oswaldo Cruz ; 107(4): 466-469, June 2012. ilus
Article in English | LILACS | ID: lil-626438

ABSTRACT

Cryptococcus neoformans is the most common causative agent of cryptococcosis worldwide. Although this fungus has been isolated from a variety of organic substrates, several studies suggest that hollow trees constitute an important natural niche for C. neoformans. A previously surveyed hollow of a living pink shower tree (Cassia grandis) positive for C. neoformans in the city of Rio de Janeiro, Brazil, was chosen for further investigation. Odontomachus bauri ants (trap-jaw ants) found inside the hollow were collected for evaluation as possible carriers of Cryptococcus spp. Two out of 10 ants were found to carry phenoloxidase-positive colonies identified as C. neoformans molecular types VNI and VNII. The ants may have acted as a mechanical vector of C. neoformans and possibly contributed to the dispersal of the fungi from one substrate to another. To the best of our knowledge, this is the first report on the association of C. neoformans with ants of the genus Odontomachus.


Subject(s)
Animals , Ants/microbiology , Cassia/microbiology , Cryptococcus neoformans/isolation & purification , Ants/classification , Brazil , Cassia/classification , Cryptococcus neoformans/genetics , Mycological Typing Techniques
6.
Mem. Inst. Oswaldo Cruz ; 106(6): 725-730, Sept. 2011. ilus
Article in English | LILACS | ID: lil-602056

ABSTRACT

Throughout Brazil, Cryptococcus neoformans is the cause of cryptococcosis, whereas Cryptococcus gattii is endemic to the northern and northeastern states. In this study, the molecular types of 63 cryptococcal isolates recovered from the cerebrospinal fluid of meningitis patients diagnosed between 2008-2010 in Teresina, Piauí, Brazil, were analysed. Out of the 63 patients, 37 (58.7 percent) were human immunodeficiency virus (HIV)-positive and 26 (41.3 percent) were HIV-negative. URA5-restriction fragment length polymorphism analysis identified 37/63 (58.7 percent) isolates as the C. neoformans VNI genotype, predominantly in HIV-positive patients (32/37, 86.5 percent), and 24/63 (38.1 percent) as the C. gattii VGII genotype, mostly in HIV-negative patients (21/26, 80.8 percent). The occurrence of C. gattii VGII in six apparently healthy children and in seven adolescents/young adults in this region reaffirms the endemic occurrence of C. gattii VGII-induced primary cryptococcosis and early cryptococcal infection. Lethality occurred in 18/37 (48.6 percent) of the HIV-positive subjects and in 13/26 (50 percent) of the HIV-negative patients. Our results provide new information on the molecular epidemiology of C. neoformans and C. gattii in Brazilian endemic areas.


Subject(s)
Adolescent , Adult , Aged , Child , Female , Humans , Male , Middle Aged , Young Adult , AIDS-Related Opportunistic Infections/microbiology , Cryptococcus gattii/genetics , Cryptococcus neoformans/genetics , Meningitis, Cryptococcal/microbiology , AIDS-Related Opportunistic Infections/epidemiology , Brazil/epidemiology , Cryptococcus gattii/isolation & purification , Cryptococcus neoformans/isolation & purification , Genotype , Meningitis, Cryptococcal/epidemiology , Polymerase Chain Reaction , Polymorphism, Restriction Fragment Length
7.
Rev. Soc. Bras. Med. Trop ; 43(6): 746-748, Nov.-Dec. 2010. ilus
Article in English | LILACS | ID: lil-569450

ABSTRACT

Cryptococcus gattii causes meningoencephalitis in immunocompetent hosts, occurring endemically in some tropical and subtropical regions. Recently, this fungus was involved in an outbreak in Vancouver Island and British Columbia (Canada). In this temperate region, the VGII type is predominant. The paper describes an autochthonous case of meningoencephalitis by C. gattii VGII in a previously health child in Rio de Janeiro, considered nonendemic region of Brazil. The fungus was identified by biochemical tests and the molecular type was determined by URA5-RFLP. The present report highlights the need for clinical vigilance for primary cryptococcal meningitis in nonendemic areas.


Cryptococcus gattii é causa de meningoencefalite em hospedeiros imunocompetentes, ocorrendo endemicamente em regiões tropicais e subtropicais. Recentemente foi causador de surtos na Ilha de Vancouver e na Columbia Britânica (Canadá). Nesta região de clima temperado, o tipo VGII é predominante. Relatamos um caso de meningoencefalite pelo C.gattii tipo VGII acometendo criança previamente saudável autóctone do Rio de Janeiro, região não endêmica do Brasil. O agente foi identificado por testes bioquímicos e o tipo molecular determinado através de URA5-RFLP. O presente relato enfatiza a necessidade de vigilância clínica para a meningite criptocóccica primária em áreas não endêmicas.


Subject(s)
Child, Preschool , Humans , Male , Cryptococcus gattii/genetics , Meningitis, Cryptococcal/diagnosis , Meningitis, Cryptococcal/microbiology , Polymorphism, Restriction Fragment Length
8.
Rev. clín. pesq. odontol. (Impr.) ; 5(2): 135-139, maio-ago. 2009.
Article in Portuguese | LILACS, BBO | ID: lil-617413

ABSTRACT

OBJETIVO: O objetivo deste estudo foi promover uma revisão de literatura sobre a participação dos fungos na etiologia e patogênese da periodontite crônica. RESULTADOS E DISCUSSÃO: Naboca, os fungos geralmente colonizam a língua, o palato e a mucosa, mas também podem ser encontradosem bolsas periodontais. A Cândida, especialmente, pode ser encontrada em grande número (7 a 57,8% das bolsas periodontais) em pacientes com periodontite crônica, apesar de alguns trabalhos não terem conseguido isolar fungos de bolsas periodontais de adultos ou os encontraram em sítios saudáveis. Em um estudo em grupo brasileiro, a Candida foi isolada na bolsa periodontal em 7,96% dos indivíduos examinados. CONCLUSÃO: Na presente revisão de literatura verificou-se que os estudos mostram a associação entre fungos e a periodontite crônica, embora o papel destes microrganismos na patogêneseda doença não seja bem compreendido.


OBJECTIVE: The objective of this study was to promote a literature review on the participation of the yeasts in the etiology and pathogenesis of the chronic periodontitis. RESULTS ANDDISCUSSION: In the mouth yeasts generally colonize the tongue, the palate and the mucosa, but they can also be found in periodontal pockets. Candida can be found in great numbers (7% to 57,8% of the periodontal pockets) in patients with chronic periodontitis, although in some studies yeasts could be found either in periodontal disease sites or in health sites. In Brazil, Candida hadbeen isolated from the periodontal pockets in 7,96% of the examined individuals. CONCLUSION: Therefore, in the present literature review it could be verified that several studies show anassociation between yeasts and chronic periodontitis, although the role of these microorganisms in the periodontal disease pathogenesis is not well understood.


Subject(s)
Humans , Fungi/pathogenicity , Periodontitis/pathology , Mouth/microbiology
9.
Mem. Inst. Oswaldo Cruz ; 104(4): 662-664, July 2009. ilus
Article in English | LILACS | ID: lil-523738

ABSTRACT

Cryptococcus neoformans and Cryptococcus gattii are important agents of meningoencephalitis in humans in the city of Belém. This clinical data suggests that the region may be a highly endemic area for the pathogenic Cryptococcus species within the state of Pará (PA), Northern Brazil. Preliminary analysis of 11 environmental samples from the city of Belém showed two positive locations, including a hollow of a kassod tree (Senna siamea) colonized simultaneously by C. gattii molecular type VGII and C. neoformans molecular type VNI, and a birdcage in a commercial aviary positive for C. neoformans, molecular type VNI. This is the first evidence of an environmental occurrence of molecular types VNI and VGII in PA.


Subject(s)
Animals , Cryptococcus gattii/isolation & purification , Cryptococcus neoformans/isolation & purification , Housing, Animal , Trees/microbiology , Birds , Brazil , Cryptococcus gattii/genetics , Cryptococcus neoformans/genetics , Polymerase Chain Reaction , Polymorphism, Restriction Fragment Length
10.
Rev. bras. anal. clin ; 41(2): 119-125, 2009. tab, graf
Article in Portuguese | LILACS | ID: lil-521149

ABSTRACT

Foram avaliadas 58 cepas de Cândida spp. Recuperada de sangue e cateter de pacientes hospitalizados admitidos em dois hospitais terciários na cidade do Rio de Janeiro, Brasil, num período de três anos. Os isolados foram identificados empregando-se técnicas micológicas de rotina e apresentaram a seguinte distribuição: Cândida parasilosis (47,1%), C. albicans (38,0%), C. tropicalis (6,9%), C. guilliermondii (6,9%), C. iamata (3,4%) e C. globrata (1,7%). Um método de disco-difusão em Agar para estudo de susceptibilidade e antifúngicos foi analisado. Discos de papel com itraconaazol (10g) e anfotericina B (100g) foram depositados sobre o Agar Mueller-Hinton com 2% de glicose e 0,5g/mL de azul de metilene para os ensaios de susceptibilidade. AS cepas foram classificadas como susceptíveis, intermediárias e resistentes pela mensuração dos diâmetros dos halos de inibição. O percentual de susceptibilidade encontrado foi o seguinte: itraconazol, susceptíveis: 91,4% e intermediárias: 8,6%; anfotericina B, susceptíveis: 100%. Cepas resistentes não foram detectadas por este método.


Subject(s)
Humans , Amphotericin B , Candida , Disease Susceptibility , Disk Diffusion Antimicrobial Tests , Itraconazole , Prevalence
11.
Rev. Soc. Bras. Med. Trop ; 41(6): 680-682, Nov.-Dec. 2008. ilus
Article in Portuguese | LILACS | ID: lil-502055

ABSTRACT

É relatado um caso de histoplasmose cutânea primária em um homem de 45 anos, com apresentação de um nódulo eritematoso no dorso da mão direita acompanhado de linfadenomegalia regional indolor, que se desenvolveu após trauma local ocorrido durante treinamento militar em túnel habitado por morcegos. O exame histológico de biópsia da lesão cutânea mostrou um infiltrado granulomatoso, porém não evidenciou elementos fúngicos. O cultivo deste material incubado em Ágar Sabouraud mostrou crescimento de Histoplasma capsulatum. Não foi encontrada evidência de envolvimento sistêmico ou imunossupressão. O tratamento com 400mg diários de itraconazol oral durante 6 meses resultou na remissão completa da lesão, mantida um ano após o término do tratamento.


This report describes a case of primary cutaneous histoplasmosis in a 45-year-old male. The presentation consisted of an erythematous nodule on the back of the right hand, accompanied by nontender regional lymphadenomegaly that developed following local trauma that occurred during military training in a tunnel inhabited by bats. Histological examination of a biopsy specimen from the skin lesion showed granulomatous infiltrate, but did not show fungal elements. Culturing of this material, incubated in Sabouraud agar, showed growth of Histoplasma capsulatum. No evidence of systemic involvement or immunosuppression was found. Treatment with 400 mg/day of itraconazole orally for six months resulted in complete remission of the lesion, which was maintained one year after the end of the treatment.


Subject(s)
Humans , Male , Middle Aged , Dermatomycoses/diagnosis , Hand Dermatoses/diagnosis , Histoplasmosis/diagnosis , Immunocompetence , Dermatomycoses/microbiology , Hand Dermatoses/microbiology , Histoplasma/isolation & purification
12.
Mem. Inst. Oswaldo Cruz ; 103(8): 813-818, Dec. 2008. mapas, tab
Article in English | LILACS | ID: lil-502302

ABSTRACT

In order to study the infectious agents causing human disseminated cryptococcosis in the state of Pará, North Brazil, 56 isolates of Cryptococcusspp. (54 isolated from cerebral spinal fluid and two from blood cultures) from 43 cases diagnosed between 2003-2007 were analysed. The species were determined through morphological and physiological tests and genotypes were determined by URA5-RFLP and PCR-fingerprinting (wild-type phage M13). The following species and genotypes were identified: Cryptococcus neoformans VNI (28/56, 50 percent), Cryptococcus gattii VGII (25/56, 44.64 percent) and C. gattii VGI (3/56, 5.26 percent). The genotype VNI occurred in 12 out of 14 HIV-positive adults, whereas the genotype VGII occurred in 11 out of 21 HIV-negative adults (p < 0.02, OR = 6.6 IC95 percent 0.98-56.0). All patients less than 12 years old were HIV negative and six cases were caused by the VGII genotype, one by the VGI and one by VNI. Therefore, endemic primary mycosis in HIV-negative individuals, including an unexpectedly high number of children, caused by the VGII genotype deserves further study and suggests the need for surveillance on cryptococcal infection in the state of Pará, Eastern Amazon.


Subject(s)
Adult , Child , Female , Humans , Male , Cryptococcosis/epidemiology , Cryptococcus/genetics , Endemic Diseases , Brazil/epidemiology , Cryptococcosis/microbiology , Cryptococcus/classification , Cryptococcus/isolation & purification , DNA, Fungal/analysis , Genotype , Mycological Typing Techniques/methods , Polymerase Chain Reaction , Polymorphism, Restriction Fragment Length
14.
Mem. Inst. Oswaldo Cruz ; 103(5): 455-462, Aug. 2008. ilus, graf, tab
Article in English | LILACS | ID: lil-491967

ABSTRACT

The molecular types of 443 Brazilian isolates of Cryptococcus neoformans and Cryptococcus gattii were analyzed to determine their geographic distribution within Brazil and their underlying host conditions. The following data, imported from previous epidemiological studies as well as two culture collections, were analyzed for: place of isolation, source (clinical or environmental), host risk factors, species, serotype, mating type, and molecular type. Molecular typing by PCR-fingerprinting using primers for the minisatellite-specific core sequence of the wild-type phage M13 or microsatellites [(GACA)4, (GTG)5], restriction fragment length polymorphism of URA5 gene analysis, and/or amplified fragment length polymorphism (AFLP) identified eight major genotypes: VNI/AFLP1, VNII/AFLP1A, VNIII/AFLP2, and VNIV/AFLP3 for C. neoformans, and VGI/AFLP4, VGII/AFLP6, VGIII/AFLP5, and VGIV/AFLP7 for C. gattii. The most common molecular type found in Brazil was VNI (64 percent), followed by VGII (21 percent), VNII (5 percent), VGIII (4 percent), VGI and VNIV (3 percent each), and VNIII (< 1 percent). Primary cryptococcosis caused by the molecular type VGII (serotype B, MAT) prevails in immunocompetent hosts in the North and Northeast regions, disclosing an endemic regional pattern for this specific molecular type in the Northern Brazil.


Subject(s)
Animals , Humans , Cryptococcus/genetics , Mycological Typing Techniques/methods , Brazil , Cryptococcus neoformans/classification , Cryptococcus neoformans/genetics , Cryptococcus neoformans/isolation & purification , Cryptococcus/classification , Cryptococcus/isolation & purification , DNA Fingerprinting , DNA, Fungal/analysis , Environmental Microbiology , Genotype , Geography , Genes, Mating Type, Fungal/genetics , Polymerase Chain Reaction , Polymorphism, Restriction Fragment Length
15.
Rev. Inst. Med. Trop. Säo Paulo ; 50(2): 75-78, Mar.-Apr. 2008. graf, tab
Article in English | LILACS | ID: lil-482218

ABSTRACT

To identify the clinical and epidemiological profile of cryptococcosis diagnosed at the University Hospital of the Federal University of Mato Grosso do Sul, Brazil, medical records of 123 patients admitted from January 1995 to December 2005 were analyzed. One hundred and four cases (84.5 percent) had HIV infection, six (4.9 percent) had other predisposing conditions and 13 (10.6 percent) were immunocompetent. Male patients predominated (68.3 percent) and their age ranged from 19 to 69 years (mean: 35.9). Most patients (73.2 percent) were born and lived lifelong in the state of Mato Grosso do Sul. Involvement of the central nervous system occurred in 103 patients (83.7 percent) and headache and vomiting were the most frequent symptoms. In 77 cases it was possible to identify the Cryptococcus species: 69 (89.6 percent) C. neoformans and eight (10.4 percent) C. gattii. Amphotericin B was the drug of choice for treatment (106/123), followed by fluconazole in 60 percent of cases. The overall lethality rate was 49.6 percent, being 51 percent among the HIV infected patients and 41.2 percent among the non-HIV infected (p > 0.05). Although cryptococcosis exhibited in our region a similar behavior to that described in the literature, the detection of an important rate of immunocompetent individuals and five C. gattii cryptococcosis in HIV-infected patients is noteworthy.


O perfil clínico-epidemiológico de 123 casos de criptococose diagnosticados no Hospital Universitário da Universidade Federal de Mato Grosso do Sul, no período de janeiro de 1995 até dezembro de 2005, foi estudado retrospectivamente. Cento e quatro (84,9 por cento) casos tinham associação com HIV, seis (4,9 por cento) tinham outra condição predisponente e 13 (10,6 por cento) eram imunocompetentes. Houve predomínio do sexo masculino (68,3 por cento) e a idade variou de 19 a 69 anos (média de 35,9 anos). A maioria (73,2 por cento) era natural e procedente de Mato Grosso do Sul. O envolvimento do sistema nervoso central ocorreu em 103 (83,7 por cento) pacientes e os sintomas mais freqüentes foram cefaléia e vômitos. Em 77 casos foi possível identificar a espécie do agente, sendo 69 (89,6 por cento) C. neoformans e oito (10,4 por cento) C. gattii. O antifúngico mais utilizado foi anfotericina B (106/123) seguido de fluconazol em aproximadamente 60 por cento dos casos. A taxa de letalidade foi de 49,6 por cento, sendo 51 por cento entre os pacientes infectados pelo HIV e 41,2 por cento entre os não infectados pelo HIV (p > 0,005). Apesar da criptococose observada em nossa região apresentar comportamento semelhante ao descrito na literatura, chama a atenção a importante taxa da micose em imunocompetentes e cinco casos de infecção por C. gattii em pacientes HIV-positivos.


Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , AIDS-Related Opportunistic Infections/epidemiology , Cryptococcosis/epidemiology , AIDS-Related Opportunistic Infections/diagnosis , AIDS-Related Opportunistic Infections/drug therapy , Amphotericin B/therapeutic use , Antifungal Agents/therapeutic use , Brazil/epidemiology , Cryptococcosis/diagnosis , Cryptococcosis/drug therapy , Fluconazole/therapeutic use , Retrospective Studies
16.
Rev. Soc. Bras. Med. Trop ; 39(3): 241-244, maio-jun. 2006. ilus, tab
Article in English | LILACS | ID: lil-433386

ABSTRACT

Vinte cepas de Coccidioides immitis foram avaliadas.Cinco das 20 cepas preservadas sob óleo mineral mantiveram-se viáveis, todas as 5 subculturas preservadas em água permaneceram viáveis e nenhuma das 13 subculturas mantidas em solo foi viável. Um produto de PCR de 519 pb do gene csa confirmou a identidade das cepas.


Subject(s)
Coccidioides/genetics , Microbial Viability , Preservation, Biological/methods , Brazil , Coccidioides/classification , Polymerase Chain Reaction , Time Factors
17.
Rev. Soc. Bras. Med. Trop ; 39(2): 230-232, mar.-abr. 2006. tab
Article in Portuguese | LILACS | ID: lil-426923

ABSTRACT

Neste estudo retrospectivo analisamos 70 pacientes HIV positivos com criptococose em um período de 16 anos. Os espécimes com melhor rendimento diagnóstico foram o LCR (97,8 por cento), seguido do cultivo do sedimento urinário (86,7 por cento) e sangue (58,8 por cento). Concluímos que a urina pode ser uma ferramenta útil para o diagnostico da criptococose.


Subject(s)
Humans , Male , Female , AIDS-Related Opportunistic Infections/diagnosis , Cryptococcosis/diagnosis , Cryptococcus neoformans/isolation & purification , Agar , AIDS-Related Opportunistic Infections/urine , Culture Media , Cryptococcosis/urine , Retrospective Studies
18.
Rev. Soc. Bras. Med. Trop ; 35(6): 591-595, nov.-dez. 2002. tab
Article in Portuguese | LILACS | ID: lil-340057

ABSTRACT

Cryptococcus neoformans é a levedura capsulada causadora de criptococose em humanos e animais. A variedade neoformans, encontrada em diversas fontes ambientais, inclusive habitats de aves, é importante causa de mortalidade em indivíduos com AIDS em todo o Mundo. Contudo, ainda näo há estudos sobre a sua ecologia na regiäo Centro Oeste brasileira, onde há registro da ocorrência de casos humanos da micose. Para estudar fontes saprofíticas de C. neoformans, na cidade de Campo Grande, foram coletadas 20 amostras de excretas de aves em distintos ambientes. Suspensäo das amostras em salina estéril foram semeadas em placas com meio ágar níger. Após 5 dias, colônias mucóides marrom-escuro foram subcultivadas para identificaçäo através de provas morfofisiológicas, determinaçäo da variedade e sorotipagem. C. neoformans var. neoformans sorotipo A foi isolado de 10 (50 por cento) das amostras, comprovando a ocorrência saprofítica de C. neoformans na cidade de Campo Grande, relacionada a habitat de aves em cativeiro


Subject(s)
Animals , Female , Male , Birds/microbiology , Cryptococcus neoformans/isolation & purification , Feces/microbiology , Housing, Animal
19.
Cad. saúde pública ; 18(5): 1441-1454, set.-out. 2002. mapas, tab, graf
Article in English | LILACS | ID: lil-327833

ABSTRACT

This study analyzes 3,181 deaths from paracoccidioidomycosis in Brazil, based on 16 years of sequential data (from 1980 to 1995). During this period paracoccidioidomycosis showed considerable magnitude and low visibility, representing the eighth most common cause of death from predominantly chronic or recurrent types of infectious and parasitic diseases. It also had the highest mortality rate among the systemic mycoses. The mean annual mortality rate was 1.45 per million inhabitants, indicating a downward long-term trend (reduction of 31.28 percent), while spatial distribution among the different regions and States of Brazil was non-homogenous. The South (with the highest regional rate) and the Southeast showed a downward trend, while the Central West had the second highest rate in the country. At least one-fifth of Brazilian municipalities (or 22.71 percent of the country's total area) reported deaths from paracoccidioidomycosis. Overall nationwide mortality per area was 3.73/10,000km². The disease was endemic in non-metropolitan areas. The majority of deaths occurred in males (84.75 percent), and there was a sex ratio of 562 men/100 women. The 30-59-year and over-60-year age groups were the most affected. The study showed that the mortality rate justifies classifying this disease as a major health problem in Brazil


Subject(s)
Humans , Epidemiology , Mortality , Paracoccidioidomycosis , Endemic Diseases
20.
Mem. Inst. Oswaldo Cruz ; 96(6): 777-779, Aug. 2001. mapas, tab
Article in English | LILACS | ID: lil-298614

ABSTRACT

During the period from 1987 to 1998, 13 cases of human sporotrichosis were recorded at the Research Center Evandro Chagas Hospital (CPqHEC) in Rio de Janeiro. Two of these patients related scratch by a sick cat. During the subsequent period from July 1998 to July 2000, 66 human, 117 cats and 7 dogs with sporotrichosis were diagnosed at the CPqHEC. Fifty-two humans (78.8 percent) reported contact with cats with sporotrichosis, and 31 (47 percent) of them reporting a history of a scratch or bite. This epidemic, unprecedented in the literature, involving cats, dogs and human beings may have started insidiously before 1998


Subject(s)
Humans , Animals , Male , Female , Child , Adolescent , Adult , Middle Aged , Cats , Dogs , Communicable Diseases, Emerging/epidemiology , Sporotrichosis/epidemiology , Brazil/epidemiology
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