Prevalence of Candida yeasts in oral samples from children with AIDS and children exposed and not exposed to HIV served by SUS in the state of Bahia, Brazil

Silva, Francine Cristina; Viana, Vivian Oliveira; Araújo, Bruno Pereira de; Campos, Laíze Aparecida Nunes Lopes; Rosa, Luciano Pereira

doi:10.1590/1981-863720150001000012820

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…Therefore, a major concern involves the understanding and characterization of emergent Candida species [ 1 ]. The sudden emergence of previously uncommon and apparently harmless yeast species as agents of invasive candidiasis may be attributed to several factors such as the use of medical devices including catheter and biofilm formation [ 2 , 3 ]. In particular, systemic infections by emergent yeasts as Candida ciferrii , C .…”

Section: Introductionmentioning

confidence: 99%

A new approach by optical coherence tomography for elucidating biofilm formation by emergent Candida species

et al. 2017

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The majority of microorganisms present a community lifestyle, establishing biofilm ecosystems. However, little is known about its formation in emergent Candida species involved in catheter-related infections. Thus, various techniques may be used in the biofilm detection to elucidate structure and clinical impact. In this context, we report the ability of emergent Candida species (Candida haemulonii, C. lusitaniae, C. pelliculosa, C.guilliermondii, C. famata and C. ciferrii) on developing well structured biofilms with cell viability and architecture, using optical coherence tomography (OCT). This new approach was compared with XTT analyses and Scanning Electron Microscopy (SEM). A positive correlation between oxidative activity (XTT) and OCT results (r = 0.8752, p < 0.0001) was observed. SEM images demonstrated cells attachment, multilayer and morphologic characteristics of the biofilm structure. C. lusitaniae was the emergent species which revealed the highest scattering extension length and oxidative metabolism when evaluated by OCT and XTT methods, respectively. Herein, information on C. ciferri biofilm structure were presented for the first time. The OCT results are independently among Candida strains and no species-specific pattern was observed. Our findings strongly contribute for clinical management based on the knowledge of pathogenicity mechanisms involving emergent yeasts.

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Section: Introductionmentioning

confidence: 99%

A new approach by optical coherence tomography for elucidating biofilm formation by emergent Candida species

et al. 2017

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“…da cavidade oral não implica necessariamente em quadro de infecção SAMARANAYAKE, 2001;LEITE;PIVA;MARTINS FILHO, 2015). Sua prevalência assintomática em pessoas saudáveis varia de 3 a 48% (SCULLY; EI-KABIR; SAMARANAYAKE, 1994;ABU-ELTEEN;HAMAD;SALAH, 2006), sendo mais alto em crianças 20 a 45% (KADIR; UYGUN; AKYÜZ, 2005;SILVA et al, 2015) e 50-75% em usuários de próteses dentárias (DARWAZEH; AL-REFAI; AL- MOJAIWEL, 2001;MARCOS-ARIAS et al, 2009 (PAPPAS et al, 2016). A maioria das espécies de Candida spp.…”

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Atividade antifúngica de óleos essenciais frente a Candida spp.

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et al. 2020

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Museal Indoor Air Quality and Public Health: An Integrated Approach for Exhibits Preservation and Ensuring Human Health

et al. 2022

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The quality of the indoor microclimate in museums is a problem of great interest to the contemporary society, given that it is in close connection with the health and comfort of visitors and employees, as well as with the integrity of the exhibits. Taking into account the fact that museums are places that have a special role in the community’s life and therefore attract a very large number of visitors of all ages, a very important issue is to determine the degree of safety that the indoor microclimate presents. Thus, the quality of the indoor microclimate was investigated inside an iconic museum in Romania, dating back to the 19th century, because pollutants from external or internal sources of the building, generated secondary, often anthropogenic, as a tendency to defend/adapt to climate change (CC), contribute to both local and regional pollution, but also lead to challenges in identifying links between air quality (AQ) and and climate change (CC). The methodology used was based on monitoring the main parameters of the microclimate (temperature, relative humidity and CO2) over a period of between October 2020 and March 2021, 21 weeks, as well as on determining the microbiological contamination of the air and some indoor exhibits located in three different areas of the museum. At the same time, the study aims to identify cheap, easy to implement and non-invasive solutions for removing fungi identified on exhibits for long-term preservation and reducing the risk of various pathologies in humans following prolonged exposure. The results obtained show that the indoor microclimate in the old heritage building favours the development of fungi, which have a high degree of contamination of the air (over 800 CFU/m3) and of the exhibits, representing a potential risk for the health of the visitors and museum workers. Thus, six species of yeast and five different fungi genera were identified in the air, while on the exhibits were individualised six fungi genera, a species of yeast and a bacterium. The most viable solution for cleaning materials, prolonging their lifespan and reducing the risk of disease in humans was represented by the use of essential oils (EO). Three essential oils (lavender, mint and lemon) were applied on an exhibit with five different microorganism genera, and it was observed that they have the ability to inhibit the spores from moulds and bacteria, being a very good alternative to the usual chemical treatments that are used in the cultural heritage field.

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Prevalence of Candida yeasts in oral samples from children with AIDS and children exposed and not exposed to HIV served by SUS in the state of Bahia, Brazil

Cited by 3 publications

References 17 publications

A new approach by optical coherence tomography for elucidating biofilm formation by emergent Candida species

A new approach by optical coherence tomography for elucidating biofilm formation by emergent Candida species

Atividade antifúngica de óleos essenciais frente a Candida spp.

Museal Indoor Air Quality and Public Health: An Integrated Approach for Exhibits Preservation and Ensuring Human Health

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