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    Estudo da eficiência de nanocarreador de anfotericina B frente a Criptococcus neoformans
    (2022) Silva, Aline Cristiane de Oliveira; Gonçalves, Érika Peterson; Gouvea, Thainara; Leite, Priscila Maria Sarmeiro Corrêa Marciano; Morais, Flavia Villaça; Ambrósio, Jéssica Aparecida Ribeiro
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    Estimation of the DNA damage in Girardia tigrina (Girard, 1850) after exposure to radiation under extreme conditions
    (Brazilian Journals Publicações de Periódicos) Benitz, Tabatha; Oliveira, Matheus Salgado de; Lopes, Karla Andressa Ruiz; Soares, Cristina Pacheco; Morais, Flavia Villaça; Velho, Nádia Maria Rodrigues de Campos
    The use of planarians as experimental models has been increased worldwide especially due to their high capacity of tissue regeneration and ease of laboratory maintenance. The current study aims to assess the genetic damage of Girardia tigrina after exposure of stressors in conditions such as: critical temperature, critical pH, hypergravity (4.4G) and low power laser (685nm). 18 specimens of G. tigrina were used, the extreme conditions mentioned were experimental group with 3 specimens each, and 3 for the control group, all specimens were submitted to the Comet Assay after exposure of stressors, and control group with no extreme condition exposure. The extreme stimuli of critical temperature and pH, hypergravity and low power laser irradiation, caused genetic damages to the G. tigrina, for hypergravity and low-power laser stressors the damage was higher in the pharyngeal and post-pharyngeal regions of the animal with a greatest area of comet tail dragging for the post-pharyngeal region. The extreme stimuli of critical temperature and pH, hypergravity and low power laser irradiation caused genetic damages in planarians Brazilian Journal of Development ISSN: 2525-8761 12160 Brazilian Journal of Development, Curitiba, v.8, n.2, p.12159-12177 feb. 2022. G. tigrina, especially in samples from the pharyngeal and post-pharyngeal regions of the flatworms body assessed by the Comet Assay.
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    Estudo da eficiência de nanocarreador de anfotericina B frente a Criptococcus neoformans
    (2022) Silva, Aline Cristiane de Oliveira; Gonçalves, Érika Peterson; Gouvea, Thainara; Leite, Priscila Maria Sarmeiro Corrêa Marciano; Morais, Flavia Villaça; Ambrósio, Jéssica Aparecida Ribeiro
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    Nano-Enabled Colorimetric Assay for the Detection of Paracoccidioides lutzii: Advancing Diagnostics with Nanotechnology
    (MDPI) Comparato Filho, Olavo de Osti; Cândido, Marcela Aparecida; Ventura, Aveline; Morais, Flavia Villaça; Raniero, Leandro José
    Deforestation is a common occurrence driven by agricultural expansion, urbanization, and infrastructure development. These activities often lead to increased human interaction with ecosys- tems, potentially exposing individuals to Paracoccidioides spores (P. brasiliensis and P. lutzii) found in the soil, resulting in Paracoccidioidomycosis (PCM). This fungal infection is endemic to specific regions in Latin America, such as Brazil, Colombia, Venezuela, and Argentina. Diagnosis typically involves a combination of clinical assessment, imaging techniques, and laboratory examinations. P. lutzii lacks the glycoprotein Gp43, a key antigenic protein utilized in serological tests for PCM diagnosis. In this study, a colorimetric test employing gold nanoparticles (AuNPs) and label-free methodology was employed for P. lutzii detection. The effectiveness of the label-free colorimetric test was assessed using a total of 100 samples. This detection was achieved through the amplification of the gp43 gene and the use of a specific probe (5′CAGGGGTGCG3′) in conjunction with AuNPs. The receiver operating characteristic curve was employed to assess the test, revealing that the method can accurately detect P. lutzii with a sensitivity of 100% and a specificity of 100%. The findings indicate a substantial impact on remote endemic regions attributable to the implementation of cost-effective diagnostic methodologies.