RESUMO
More effective methods to detect bovine tuberculosis, caused by Mycobacterium bovis, in wildlife, is of paramount importance for preventing disease spread to other wild animals, livestock, and human beings. In this study, we analyzed the volatile organic compounds emitted by fecal samples collected from free-ranging wild boar captured in Doñana National Park, Spain, with an electronic nose system based on organically-functionalized gold nanoparticles. The animals were separated by the age group for performing the analysis. Adult (>24 months) and sub-adult (12-24 months) animals were anesthetized before sample collection, whereas the juvenile (<12 months) animals were manually restrained while collecting the sample. Good accuracy was obtained for the adult and sub-adult classification models: 100% during the training phase and 88.9% during the testing phase for the adult animals, and 100% during both the training and testing phase for the sub-adult animals, respectively. The results obtained could be important for the further development of a non-invasive and less expensive detection method of bovine tuberculosis in wildlife populations.
Assuntos
Nariz Eletrônico , Nanopartículas Metálicas , Mycobacterium tuberculosis , Tuberculose , Compostos Orgânicos Voláteis , Animais , Animais Selvagens , Bovinos , Fezes , Feminino , Ouro , Humanos , Masculino , Espanha , Sus scrofa , Suínos , Tuberculose/diagnóstico , Tuberculose/veterináriaRESUMO
Fundamento: en el bazo se pueden observar diferentes tipos de tumores, dentro de los cuales están los linfomas primarios del mismo, enfermedad infrecuente, de ahí la importancia de su presentación. Presentación de caso: paciente femenina de 66 años, raza blanca, con antecedentes de hipertensión arterial, lobectomía derecha del tiroides, que refiere venía presentando desde hacía más de un año dolor abdominal alto izquierdo que se hacía más intenso tras el esfuerzo físico, tos, presentando toma del estado general por lo que se ingresa en el servicio de cirugía. Se toman muestras para biopsia, después de ser intervenido quirúrgicamente de una esplenectomía, dando como resultado un Linfoma no Hodgkin de células grandes CD20 positivo, sin infiltración hepática, ganglionar ni epiplóica. Se realizó esplenectomía y quimioterapia. La paciente ha evolucionado favorablemente. Conclusiones: el linfoma primario de bazo es una entidad infrecuente y su diagnóstico es aún más raro en pacientes por encima de los 60 años, como ocurrió en el caso presentado. A medida que casos como este se divulguen entre los profesionales de la salud permitirán una aproximación diagnóstica más precisa a esta enfermedad poco común.
Background: in the spleen you can see different types of tumors; primary lymphomas are an example of them. This is an infrequent disease, hence the importance of its presentation. Case presentation: 66 year old white female patient with history of hypertension, thyroid right lobectomy that refers to have been suffering from high left abdominal pain for a year that became more intense after physical exertion, cough, presenting general malaise by what is admitted to the surgical service. Some samples for biopsy are taken, after being surgically operated of a splenectomy, showing as a result a non-Hodkin lymphoma of big cells resulting cell non-Hodgkin lymphoma CD20 Positive, without hepatic, ganglionic or epiploic infiltration. Splenectomy and chemotherapy were made. The patient has improved favorably. Conclusions: primary lymphoma of the spleen is a rare entity and its diagnosis is still rarer in patients over 60 years, as it happened in the case presented. As cases like these are disseminated among health professionals will allow a more accurate diagnostic approach to this rare disease.