Andrés Mauricio Ortega Orozco, Lucas Drumond Bento, Pollyanna Cordeiro Souto, Fabrícia Modolo Girardi, Verônica Rodrigues Castro, João Vitor Gonçalves de Oliveira, Camilo José Ramirez Lopez, Edvaldo Barros, Artur Kanadani Campos, Leandro Abreu da Fonseca
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Serum Proteinogram in the Free-Living Brazilian Common Opossum (Didelphis aurita).
Didelphis aurita is a synanthropic marsupial widely distributed in southeastern Brazil, known for its resistance to venom and its relevance in biomedical research. This study aimed to characterize the serum proteinogram of free-living D. aurita individuals. Blood samples from 27 animals, classified as "healthy" or "diseased," were analyzed. Eighteen protein bands were identified, with molecular weights ranging from 24 to 242 kDa. Among these, variations in specific bands were associated with health status (band J), sex (bands D, M, N, and P), and age (bands N and P). Mass spectrometry (liquid chromatography-tandem mass spectrometry [LC-MS/MS]) identified seven proteins, including DM64, ceruloplasmin, von Willebrand factor A (VWFA) domain protein, alpha-2-macroglobulin, fibronectin, and actin depolymerizing factor. These results highlight the influence of biological factors on serum protein profiles and reinforce the potential of D. aurita as a model for immunological and proteomic studies.
期刊介绍：
ELECTROPHORESIS is an international journal that publishes original manuscripts on all aspects of electrophoresis, and liquid phase separations (e.g., HPLC, micro- and nano-LC, UHPLC, micro- and nano-fluidics, liquid-phase micro-extractions, etc.).
Topics include new or improved analytical and preparative methods, sample preparation, development of theory, and innovative applications of electrophoretic and liquid phase separations methods in the study of nucleic acids, proteins, carbohydrates natural products, pharmaceuticals, food analysis, environmental species and other compounds of importance to the life sciences.
Papers in the areas of microfluidics and proteomics, which are not limited to electrophoresis-based methods, will also be accepted for publication. Contributions focused on hyphenated and omics techniques are also of interest. Proteomics is within the scope, if related to its fundamentals and new technical approaches. Proteomics applications are only considered in particular cases.
Papers describing the application of standard electrophoretic methods will not be considered.
Papers on nanoanalysis intended for publication in ELECTROPHORESIS should focus on one or more of the following topics:
• Nanoscale electrokinetics and phenomena related to electric double layer and/or confinement in nano-sized geometry
• Single cell and subcellular analysis
• Nanosensors and ultrasensitive detection aspects (e.g., involving quantum dots, "nanoelectrodes" or nanospray MS)
• Nanoscale/nanopore DNA sequencing (next generation sequencing)
• Micro- and nanoscale sample preparation
• Nanoparticles and cells analyses by dielectrophoresis
• Separation-based analysis using nanoparticles, nanotubes and nanowires.
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