Publications by authors named "Alana L de Sousa"

Article Synopsis
  • Extended-spectrum β-lactamase (ESBL)-producing E. coli poses a major public health threat due to resistance against many broad-spectrum antibiotics, particularly third-generation cephalosporins.
  • International clones of CTX-M-8-producing E. coli were found in captive scorpion mud turtles in the Brazilian Amazon, showing multidrug resistance and extensive resistance genes for antimicrobials and other toxic substances.
  • The presence of these resistant bacteria in captive wildlife raises concerns for wildlife safety and emphasizes the need for better surveillance and control in conservation efforts to prevent the spread of antimicrobial resistance.
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Article Synopsis
  • Pygocentrus nattereri and Serrasalmus rhombeus are fish species sold in Maranhão, Brazil, which were studied for parasitic infections.
  • Researchers acquired 52 specimens of each species from a market and analyzed their tissues for the presence of parasites.
  • The study found nematode larvae in the fish’s internal organs, raising concerns about the risk of zoonotic infections and highlighting the need for public awareness and preventive measures.
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Introduction: The present study describes three new dactylogyrid species infecting the gill filaments of cichlid fishes (Cichliformes: Cichlidae) from the Amazon basin, Peru: Sciadicleithrum amazoniensis n. sp. on Biotodoma cupido (Heckel, 1840), and Sciadicleithrum feliciajaramae n.

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Background: The developmental biology of is described, based on the phenotype. This species is important for the flora because they are excellent seed disseminators. In addition, basic embryological information is not yet fully clarified, and this research provides unprecedented information on the chelonian embryology of the Amazonian fauna.

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Kinosternon scorpioides, popularly known as scorpion mud turtle (jurará in Brazil), is a fresh water species. There is little information about its reproduction and the present study aims to morphologically characterize the reproductive organs of male K.scorpioides bred in captivity in two seasons of the year.

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Genotoxic and hematological parameters in tambaqui (Colossoma macropomum), a native freshwater fish, were used as biomarkers to assess exposure to environmental stressors within the Maracanã Protected Area of Maranhão State, Brazil. Fish were sampled at two sites-Serena Lagoon (control) and Ambude River-on four occasions (dry and rainy season), and biometric data (length and weight) recorded and blood collected from all fish for analysis. Erythrocyte indices-mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration-were calculated.

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