Publications by authors named "Flavia de F Costa"

Article Synopsis
  • People with atopic dermatitis (AD) have more types of fungi (called mycobiota) on their skin compared to those without AD.
  • In a study with 80 AD patients and 50 healthy individuals, it was found that 47.5% of AD patients had certain yeasts, while none of the healthy ones did.
  • The study showed that older people were more likely to have these yeasts, especially in the neck area, but the severity of skin problems didn’t change the number of fungi found.
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Sugarcane (Saccharum officinarum, Poaceae) is cultivated on a large scale in (sub)tropical regions such as Brazil and has considerable economic value for sugar and biofuel production. The plant is a rich substrate for endo- and epiphytic fungi. Black yeasts in the family Herpotrichiellaceae (Chaetothyriales) are colonizers of human-dominated habitats, particularly those rich in toxins and hydrocarbon pollutants, and may cause severe infections in susceptible human hosts.

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Article Synopsis
  • * This study involved sequencing and analyzing the whole genome of C. exuberans to identify genes related to its management of carbon and toxins, as well as its tolerance to heavy metals like lead and copper.
  • * Findings showed that C. exuberans could tolerate high levels of copper (up to 2500 ppm) and lead (up to 2500 ppm) while also effectively removing these metals from its environment, indicating its potential for use in cleaning up
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Background: The skin is the first line of defence against communities of resident viruses, bacteria and fungi. The composition of the microbiome might change with factors related to the environment and host. The microbiome is dominated by bacteria.

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Chromoblastomycosis is a chronic, cutaneous or subcutaneous mycosis characterized by the presence of muriform cells in host tissue. Implantation disease is caused by melanized fungi related to black yeasts, which, in humid tropical climates, are mainly members of the genus . In endemic areas of Brazil, and are the prevalent species.

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Melanized fungi and black yeasts in the family Herpotrichiellaceae (order Chaetothyriales) are important agents of human and animal infectious diseases such as chromoblastomycosis and phaeohyphomycosis. The oligotrophic nature of these fungi enables them to survive in adverse environments where common saprobes are absent. Due to their slow growth, they lose competition with common saprobes, and therefore isolation studies yielded low frequencies of clinically relevant species in environmental habitats from which humans are thought to be infected.

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