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Evaluación de la resistencia antibiótica de Clostridioides difficile


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Título :
Evaluación de la resistencia antibiótica de Clostridioides difficile
Autor :
Gosálbez Ibáñez, Elia
Tutor:
López-Pérez, Mario  
Rodríguez Díaz, Juan Carlos
Editor :
Universidad Miguel Hernández
Departamento:
Departamentos de la UMH::Producción Vegetal y Microbiología
Fecha de publicación:
2024
URI :
https://hdl.handle.net/11000/36215
Resumen :
Clostridioides difficile (C. difficile) es una bacteria anaerobia formadora de esporas y la principal responsable de la diarrea nosocomial, lo que la convierte en un problema global de salud pública. Este estudio se centra en la evaluación de la resistencia y sensibilidad de la bacteria frente a di...  Ver más
Clostridioides difficile (C. difficile) is a spore-forming anaerobic bacterium and the main cause of nosocomial diarrhea, making it a global public health concern. This study focuses on evaluating the resistance and susceptibility of the bacterium to various antibiotics. As part of a multicenter project, strains isolated from patients in 9 hospitals in the Valencian Community and Andalucia were analyzed. Antibiotic susceptibility tests were conducted to determine the minimum inhibitory concentration (CMI) of antibiotics used both in the direct treatment of C. difficile infections and those that promote its proliferation. The results were analyzed following the clinical and epidemiological cutoff values (ECOFF) established by EUCAST and CLSI. Therapeutic antibiotics such as fidaxomicin and vancomycin showed good activity against C. difficile, with low resistance rates, highlighting fidaxomicin as the most effective option. Metronidazole remains effective, but its use should be secondary due to potential adverse effects. Tigecycline showed the lowest MIC; however, the lack of clinical cutoff values prevents an accurate assessment of its resistance. In contrast, antibiotics not specifically targeting C. difficile showed higher MIC values and higher resistance rates, especially ciprofloxacin and ceftriaxone, which could promote intestinal dysbiosis and C. difficile development.
Palabras clave/Materias:
Clostridioides difficile
Resistencia antimicrobiana
CMI
EUCAST
CLSI
ECOFF
Clostridioides difficile
Antimicrobial resistance
Área de conocimiento :
CDU: Ciencias puras y naturales: Biología
Tipo de documento :
info:eu-repo/semantics/bachelorThesis
Derechos de acceso:
info:eu-repo/semantics/openAccess
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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TFG - Biotecnología



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