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result(s) for
"Nascimento, Karina Marinho"
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Chronic Pulmonary Aspergillosis: Genomic Variant Analysis and Protein Dysfunction Susceptibility in a Brazilian Cohort
by
Vieira, Lucas Liro
,
Costa, Andre Nathan
,
Magri, Marcello Mihailenko Chaves
in
Accountants
,
Adult
,
Aged
2025
Background/Objectives: Chronic pulmonary aspergillosis (CPA) is a debilitating condition often affecting immunocompetent patients with underlying structural lung diseases, particularly pulmonary tuberculosis. This study investigates single nucleotide variants (SNVs) in immunogenetic-related genes among a Brazilian cohort with CPA. Methods: Twelve patients with confirmed CPA, based on ESCMID/ERS criteria, were sequenced using custom multigenic panel sequencing. Variants were annotated, classified using ACMG guidelines, and analyzed for potential impact on protein interactions and immune pathways. Results: A set of SNVs in CX3CR1, IL12B, IL4R, PTX3, CCR5, and IFNG genes were classified as variants of uncertain significance (VUS), but protein–protein interaction analysis suggests a potential role in immune evasion and dysfunction. Conclusions: This is the first study to apply a custom multigenic panel for CPA susceptibility in a Brazilian cohort, contributing to future functional and clinical studies in fungal immunogenetics.
Journal Article
Soil degradation and Cu, Cr, Ni, Pb and Zn contamination in dumpsites of humid and semiarid tropical regions in northeastern Brazil
by
Cunha, Karina Patrícia Vieira da
,
Nascimento, Clístenes Williams Araújo do
,
Marinho, Ana Paula França de
in
Atmospheric Protection/Air Quality Control/Air Pollution
,
atomic absorption spectrometry
,
Atomic absorption spectrophotometry
2022
We investigated soil characteristics and heavy metal content changes in 12 inactive dumpsites in humid and semiarid tropical climates in Northeast Brazil. The metals Cu, Cr, Ni, Pb and Zn in soil samples were determined by atomic absorption spectrophotometry. Other parameters measured include pH, electric conductivity, soil texture, soil organic carbon, total porosity and available P. The soil contents of sand, clay, soil organic carbon, available P and heavy metals, and soil bulk density, total porosity and pH were efficient indicators of soil degradation. We found no influence of current use, soil class or climate on the soil response. The mean concentrations of heavy metals in the dumpsite soils followed the order Zn (49.96 mg kg
−1
) > Cu (38.48 mg kg
−1
) > Pb (24.64 mg kg
−1
) > Cr (21.94 mg kg
−1
) > Ni (7.77 mg kg
−1
). They were 6- to 36-fold higher than the background values for the region and were above the Brazilian guideline values for metals. The four dumpsite soils that showed simultaneous contamination with two or more heavy metals were located in the semiarid region. This challenges the assumption that soil impacts in the semiarid region are minimal due to lower leaching and high evaporation. Soil changes increase with time under activity, size and decommission time of the dumpsite. These data are important for local authorities to establish more effective targeting policies for closure of dumps and control of the spread of contaminants in areas impacted by the disposal of municipal waste.
Journal Article