Evaluación del potencial antibacteriano del óxido de grafeno reducido frente a Staphylococcus aureus resistente a la meticilina

Autores/as

  • Noor Abdul Ridha Al-Buhamrah1 Department of Pathological Analysis, College of Science, University of Kufa, Najaf, Iraq https://orcid.org/0009-0006-7085-6586
  • Sabreen Ghanem Al-Fatlawi Department of Pathological Analysis, College of Science, University of Kufa, Najaf, Iraq
  • Ibtihal Riyadh Najeeb Department of Pathological Analysis, College of Science, University of Kufa, Najaf, Iraq
  • Noor Al-huda Nadhim Sadiq Department of Pathological Analysis, College of Science, University of Kufa, Najaf, Iraq
  • Noor alhuda Ghanem Al-Fatlawi Department of Pathological Analysis, College of Science, University of Kufa, Najaf, Iraq
  • Mohammed. K. S. Alquraishi Department of Pathological Analysis, College of Science, University of Kufa, Najaf, Iraq

DOI:

https://doi.org/10.30827/ars.v67i2.35268

Palabras clave:

Staphylococcus aureus, Methicillin-resistant Staphylococcus aureus, óxido de grafeno reducido, resistencia a múltiples fármacos.

Resumen

Introducción: Staphylococcus aureus es un patógeno oportunista reconocido por causar diversas infecciones clínicas, especialmente en pacientes inmunocomprometidos, y está asociado con altas tasas de morbilidad y resistencia a múltiples antimicrobianos.

Métodos:Se recolectaron 24 muestras clínicas de hisopos provenientes de sitios sospechosos de infección de pacientes en Najaf, Irak. Las muestras se cultivaron en medios selectivos, y el crecimiento bacteriano positivo se observó en 15 muestras 62,5 %. Diez aislamientos fueron identificados como S. aureus mediante evaluación macroscópica y microscópica, pruebas bioquímicas y confirmación con el sistema VITEK 2.

Resultados:Las pruebas de susceptibilidad antimicrobiana revelaron que el 70 % de los aislamientos eran resistentes a ceftriaxona. La resistencia a gentamicina, cefalosporinas, eritromicina y tetraciclina se detectó en un 60 % de los aislamientos. Se observó resistencia intermedia al cloranfenicol en un 50 %, mientras que rifampicina y levofloxacino mostraron las tasas más bajas de resistencia 40 %. Un 70 % de los aislamientos presentaron resistencia a múltiples clases de antibióticos (MDR), y el 40 % fueron confirmados como S. aureus resistente a meticilina (MRSA). El óxido de grafeno reducido (rGO) no mostró efecto inhibitorio observable frente a S. aureus en el ensayo de difusión en agar bajo las condiciones evaluadas.

Conclusión:Estos resultados subrayan la necesidad de desarrollar estrategias terapéuticas innovadoras para combatir la creciente resistencia bacteriana, especialmente dado el fracaso del rGO no modificado en inhibir efectivamente a S. aureus en las condiciones experimentales empleadas.

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Publicado

20-03-2026

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1.
Noor Abdul Ridha Al-Buhamrah1, Sabreen Ghanem Al-Fatlawi, Ibtihal Riyadh Najeeb, Noor Al-huda Nadhim Sadiq, Noor alhuda Ghanem Al-Fatlawi, Mohammed. K. S. Alquraishi. Evaluación del potencial antibacteriano del óxido de grafeno reducido frente a Staphylococcus aureus resistente a la meticilina. Ars Pharm [Internet]. 20 de marzo de 2026 [citado 18 de mayo de 2026];67(2):175-87. Disponible en: https://revistaseug.ugr.es/index.php/ars/article/view/35268

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