ArticleInternational microbiology : the official journal of the Spanish Society for Microbiology2026
Preventive action of ketamine alone and in combination with antifungals on Candida biofilm formation in catheters.
Article in International microbiology : the official journal of the Spanish Society for Microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThis study investigates the repurposing potential of the anesthetic ketamine (KET) as a preventive agent, both alone and in combination with the azoles fluconazole (FLC) and itraconazole (ITR), against Candida spp. biofilms adhering to fragments of peripheral venous catheters.
methodsThe activity was assessed in vitro through cell viability and colonization assays of impregnated catheter segments, while morphological alterations were analyzed using scanning electron microscopy (SEM).
resultsKET, both alone and in association with ITR, significantly reduced (p < 0.05) the adherence of C. albicans to the impregnated fragments. Furthermore, the combinations KET + FLC and KET + ITR frequently exhibited greater efficacy in reducing biofilm viability than the agents used individually, suggesting additive/synergistic interactions. SEM revealed structural damage to the treated fungal cells.
conclusionThese findings indicate that KET exhibits preventive activity against Candida spp. biofilms, including on catheter surfaces, and may enhance the activity of azoles, positioning it as a promising candidate for repurposing in the treatment of biofilm-associated fungal infections.
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