Antibacterial, Antibiofilm, and Wound Healing Activities of Rutin and Quercetin and Their Interaction with Gentamicin on Excision Wounds in Diabetic Mice
2024
Yasir Almuhanna | Abdulrahman Alshalani | Hamood AlSudais | Fuad Alanazi | Mohammed Alissa | Mohammed Asad | Babu Joseph
Phytochemicals are effective and are gaining attention in fighting against drug-resistant bacterial strains. In the present study, rutin and quercetin were tested for antibacterial, antibiofilm, and wound healing activities on excision wounds infected with MDR-<i>P. aeruginosa</i> in diabetic mice. Antibacterial and antibiofilm activities were studied in vitro using broth dilution assay and crystal violet assay, respectively. These phytochemicals were tested alone for wound-healing activities at different concentrations (0.5% and 1% in ointment base) and in combination with gentamicin to evaluate any additive effects. Rutin and quercetin demonstrated effectiveness against MDR-<i>P. aeruginosa</i> at higher concentrations. Both phytochemicals inhibited biofilm formation in vitro and contributed to the healing of diabetic wounds by eradicating biofilm in the wounded tissue. Rutin at a low concentration (0.5%) had a lesser effect on reducing the epithelization period and regeneration of the epithelial layer compared to quercetin. When combined with gentamicin, quercetin (1%) displayed the maximum effect on epithelium regeneration, followed by rutin (1%) in combination with gentamicin. Both phytochemicals were found to be more effective in controlling biofilm and wound-healing activities when used as an additive with gentamicin. The study supports the traditional use of phytochemicals with antibacterial, antibiofilm, and wound-healing activities in managing diabetic infections.
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