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Aim: The objective of this study was to evaluate the clinical and epidemiological aspects of Candida infections. Methods: The study relied on the analysis of electronic medical records. Results: Among 183 patients with positive fungal infections, 57 were from the community and 126 from hospitals. Females predominated in both groups (82.4% in the community, 54.7% in hospitals). Non-albicans Candida spp. accounted for 62.8% of cases. Antifungal therapy was prescribed for 67 patients, with a 55.6% mortality rate. Conclusion: The increasing prevalence of non-albicans Candida species highlights the need for better candidiasis monitoring and control, especially concerning antifungal use amidst rising antimicrobial resistance, particularly in empirical therapy scenarios.
Fungal infections, particularly those caused by a group of yeasts called Candida, are a major concern. This study looks at clinical laboratory and medical records. We found that certain species of Candida not previously associated with human disease are common. We also noted the inappropriate use of antifungal medication, highlighting the need for healthcare workers to carefully diagnose patients and make appropriate decisions when treating fungal infections.
Assuntos
Antifúngicos , Candida , Candidíase , Farmacorresistência Fúngica , Humanos , Antifúngicos/uso terapêutico , Antifúngicos/farmacologia , Feminino , Masculino , Candida/efeitos dos fármacos , Candida/isolamento & purificação , Pessoa de Meia-Idade , Candidíase/epidemiologia , Candidíase/tratamento farmacológico , Candidíase/microbiologia , Candidíase/mortalidade , Idoso , Adulto , Idoso de 80 Anos ou mais , Prevalência , Adulto Jovem , Adolescente , Criança , Estudos Retrospectivos , Pré-EscolarRESUMO
Neutrophils activated with pathogens or their products induce formation of extracellular traps (NETs), but if this constitutes a general response against all pathogenic species in a single genus or intrageneric differences exist remains unknown, yet this is of great importance for the establishment of effective treatments. To determine this, we analyzed neutrophil extracellular traps formation after the stimulation with bloodstream isolates from different Candida species (Candida albicans, C. tropicalis, C. parapsilosis, and C. glabrata), and found that each species has a different capacity to induce DNA extrusion, which is independent of their morphology (yeast or hyphae). We observed that phospholipase producer's strains and their secretion products were able to induce NETs, a property not observed with phospholipase deficient strains, with exception of some Candida glabrata sensu stricto isolates, which showed no NETs induction although they did show phospholipase production. To further analyze this, we extended our study to include Candida glabrata cryptic species (C. bracarensis and C. nivariensis) and no extracellular traps formation was observed. Here, we contribute to the understanding of how neutrophils initiate NETs, and we found that certain strains may have a differential capacity to trigger these structures, which may explain the high mortality of some isolates.
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ABSTRACT The aim of this study was to isolate and identify Candida species from the oral cavity of denture wearers with denture-related stomatitis who were attended at the University Federal of Pará (Belém City, Pará State, Brazil). A total of 36 denture wearers with denture-related stomatitis were included, and type I (50%), type II (33%) and type III (17%) stomatitis were observed. Candida spp. were isolated from 89% of the cases and included five different Candida species. C. albicans was the most frequently recovered species (78% of the cases), followed by C. famata and C. tropicalis. We observed a significant association between Candida species isolation and unsatisfactory denture condition (p = 0.0017). Our results demonstrated the highly frequency of Candida species isolation in denture wearers with denture-related stomatitis and showed the relationship between these species and poor denture maintenance.
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Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Candida/isolamento & purificação , Candidíase Bucal/microbiologia , Estomatite sob Prótese/microbiologia , Brasil , Candida/classificação , Candida/genética , Dentaduras/microbiologiaRESUMO
The aim of this study was to isolate and identify Candida species from the oral cavity of denture wearers with denture-related stomatitis who were attended at the University Federal of Pará (Belém City, Pará State, Brazil). A total of 36 denture wearers with denture-related stomatitis were included, and type I (50%), type II (33%) and type III (17%) stomatitis were observed. Candida spp. were isolated from 89% of the cases and included five different Candida species. C. albicans was the most frequently recovered species (78% of the cases), followed by C. famata and C. tropicalis. We observed a significant association between Candida species isolation and unsatisfactory denture condition (p = 0.0017). Our results demonstrated the highly frequency of Candida species isolation in denture wearers with denture-related stomatitis and showed the relationship between these species and poor denture maintenance.(AU)
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Humanos , Estomatite , Dentaduras/microbiologia , Candida albicans/isolamento & purificação , Candida/isolamento & purificação , Prótese Dentária/microbiologiaRESUMO
The aim of this study was to isolate and identify Candida species from the oral cavity of denture wearers with denture-related stomatitis who were attended at the University Federal of Pará (Belém City, Pará State, Brazil). A total of 36 denture wearers with denture-related stomatitis were included, and type I (50%), type II (33%) and type III (17%) stomatitis were observed. Candida spp. were isolated from 89% of the cases and included five different Candida species. C. albicans was the most frequently recovered species (78% of the cases), followed by C. famata and C. tropicalis. We observed a significant association between Candida species isolation and unsatisfactory denture condition (p=0.0017). Our results demonstrated the highly frequency of Candida species isolation in denture wearers with denture-related stomatitis and showed the relationship between these species and poor denture maintenance.
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Candida/isolamento & purificação , Candidíase Bucal/microbiologia , Estomatite sob Prótese/microbiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Brasil , Candida/classificação , Candida/genética , Dentaduras/microbiologia , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
Las manos del personal de salud se consideran importantes para la colonización e infección por Candida spp. El objetivo del estudio fue determinar la prevalencia y distribución de levaduras aisladas en las manos de trabajadores de salud y algunos pacientes, así como su sensibilidad in vitro frente al fluconazol y voriconazol. El estudio se realizó en tres servicios del Complejo Hospitalario Universitario Ruíz y Páez: unidad de cuidados intensivos, retén patológico y retén sano. El estudio de sensibilidad se realizó mediante el método de difusión con discos (Documento M44-A2). Se obtuvieron 79 aislamientos, de los cuales el 50,6% fue Candida albicans y el 49,4% especies no albicans. Las especies no albicans predominantes fueron C. tropicalis (n=25; 31,6%) seguidas del Complejo C. parapsilosis (n=13; 16,5%). El 87,3% y 91,1% de los aislados fue sensible al fluconazol y voriconazol, respectivamente. El 11,4% y 6,3% fue resistente al fluconazol y al voriconazol. Los resultados de este estudio demuestran que el estado de portador de levaduras en las manos del personal de salud es importante, por lo tanto es indispensable educarlos sobre el lavado adecuado de las manos, uso de guantes y uso de antisépticos para evitar o minimizar la posibilidad de transmisión de estos agentes.
The hands of health care workers are considered important for colonization and infection by Candida spp. The aim of the study was to determine the prevalence and distribution of yeasts isolated from the hands of health personnel and some patients and their in vitro susceptibility to fluconazole and voriconazole. The study was conducted in three services of the Hospital Universitario Ruiz y Páez: Neonatal Intensive Care Unit and Healthy and Pathologic Newborn Units. The susceptibility tests were performed by the disk diffusion method (document M44-A2). A total of 79 isolates were obtained, of which 50.6% were Candida albicans and 49.4% non-albicans species. Among the non-albicans species were C. tropicalis (n = 25; 31.6%) followed by C. parapsilosis complex (n = 13; 16.5%). 87.3% and 91.1% of isolates were sensitive to fluconazole and voriconazole, respectively. 11.4% and 6.3% were resistant to fluconazole and voriconazole. The results of this study demonstrate the importance of the carriage of yeasts in the hands of health personnel; therefore it is essential to educate them about proper hand washing, use of gloves and antiseptic products to prevent or minimize the transmission of these agents.
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AIM: This study aimed to evaluate the antifungal activity of Buchenavia tomentosa extract and bioactive compounds on six Candida species. MATERIALS & METHODS: The antimicrobial activity of extract was evaluated using standard strains and clinical isolates. Cytotoxicity was tested in order to evaluate cell damage caused by the extract. Extract was chemically characterized and the antifungal activity of its compounds was evaluated. RESULTS: Extract showed antifungal activity on Candida species. Candida non-albicans were more susceptible than Candida albicans. Low cytotoxicity for extract was observed. The isolated compounds presented antifungal activity at least against one Candida spp. and all compounds presented antifungal effect on Candida glabrata. CONCLUSION: Extracts from Buchenavia tomentosa showed promising antifungal activity on Candida species with low cytotoxicity. Gallic acid, corilagin and ellagic acid showed promising inhibitory activity on Candida glabrata.
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Antifúngicos/farmacologia , Candida/efeitos dos fármacos , Combretaceae/química , Extratos Vegetais/farmacologia , Células 3T3 , Animais , Antifúngicos/química , Antifúngicos/isolamento & purificação , Antifúngicos/toxicidade , Sobrevivência Celular/efeitos dos fármacos , Fibroblastos/efeitos dos fármacos , Camundongos , Camundongos Endogâmicos BALB C , Testes de Sensibilidade Microbiana , Extratos Vegetais/química , Extratos Vegetais/isolamento & purificação , Extratos Vegetais/toxicidade , Análise EspectralRESUMO
Realizou-se um estudo observacional, prospectivo, de base laboratorial, para investigar a incidência de candidemia, distribuição de espécies e condições clínicas entre setembro 2003 e março 2004, em um hospital privado terciário em Recife, Nordeste do Brasil. Um caso de candidemia foi definido como isolamento de Candida spp de hemocultura. A taxa de incidência foi calculada por 1.000 admissões. Um total de 5.532 pacientes foram admitidos no hospital durante o período de estudo, e 1.745 culturas de sangue foram processadas. Foram observados 21 episódios de candidemia em 18 pacientes. A taxa de incidência de candidemia foi de 3,9 episódios por 1.000 admissões. Espécies não-albicans representaram mais de 50 por cento dos casos, predominando Candida parapsilosis (33 por cento) e Candida tropicalis (24 por cento). Onze (61 por cento) pacientes morreram. A incidência de candidemia foi mais alta que aquela observada em estudo multicêntrico brasileiro. Candidemia foi predominantemente causada por espécies não-albicans.
We conducted a prospective, observational, laboratory-based study on candidemia to investigate the incidence of candidemia, species distribution and clinical conditions between September 2003 and March 2004 in a private tertiary hospital in Recife, northeastern Brazil. Cases of candidemia were defined as occurrences of isolation of Candida spp from blood cultures. The incidence rate was calculated per 1,000 admissions. A total of 5,532 patients were admitted to the hospital during the study period, and 1,745 blood cultures were processed. Twenty-one episodes of candidemia were observed in 18 patients. The incidence rate of candidemia was 3.9 episodes per 1,000 admissions. Non-albicans species accounted for more than 50 percent of the cases, and Candida parapsilosis (33 percent) and Candida tropicalis (24 percent) predominated. Eleven (61 percent) patients died. The incidence of candidemia was higher than that observed in a Brazilian multicenter study. Candidemia was caused predominantly by non-albicans species.