Boughroud Hajar, Chgari Oumaima, Wahnou Hicham, Amrani Abdelaziz El, Faqer Othman El, Amarir Fatima, Mtairag El Mostafa, Rais Samira, Bourjilat Fatna
Immunology and Biodiversity Laboratory, Faculty of Sciences Ain Chock, Hassan II University, Casablanca, Morocco.
Medical Microbiology Laboratory, Institut Pasteur du Maroc, Casablanca, Morocco.
Chem Biodivers. 2025 Apr;22(4):e202402605. doi: 10.1002/cbdv.202402605. Epub 2024 Dec 3.
Staphylococcal infections challenge current treatments due to adverse effects and drug resistance, prompting the exploration of plant-derived compounds for their promising properties. This study aimed to analyze Syzygium aromaticum essential oil (SA-EO), aqueous (AE-SA) and ethyl acetate (EAE-SA) extracts for antioxidant and antistaphylococcal effects against sensitive and resistant clinical isolates. Erythrocytes were used as model cells for biocompatibility. The SA-EO was extracted via hydrodistillation and compounds were identified using GC-MS. The antioxidant activity was assessed using various tests, while antimicrobial activity was evaluated through disk diffusion and microdilution assays. Results showed Eugenol as the major compound in SA-EO. The AE exhibited high phenolic and flavonoid content. SA-EO demonstrated antioxidant activity with IC values of 84.63 ± 1.94 µg/mL (TAC) and 52.88 ± 1.44 µg/mL (FRAP). The AE-SA showed scavenging effects with EC values of 266.52 ± 50.62 µg/mL (DPPH) and 140.67 ± 44.36 µg/mL (NO). The antistaphylococcal activity revealed significant sensitivity of SA-EO with MIC and MBC values ranging from 0.316 to 1.266 mg/mL. SA-EO showed low hemolytic activity even at high concentrations, indicating its safe therapeutic application. Overall, these findings highlight the potential of Syzygium aromaticum in combating multidrug-resistant bacteria and underscore its role as a source of bioactive compounds with antioxidant properties.
由于不良反应和耐药性,葡萄球菌感染对当前治疗方法构成挑战,这促使人们探索具有潜在特性的植物源化合物。本研究旨在分析丁香精油(SA-EO)、水提取物(AE-SA)和乙酸乙酯提取物(EAE-SA)对敏感和耐药临床分离株的抗氧化和抗葡萄球菌作用。红细胞用作生物相容性的模型细胞。通过水蒸馏法提取SA-EO,并使用气相色谱-质谱联用仪鉴定化合物。通过各种试验评估抗氧化活性,同时通过纸片扩散法和微量稀释法评估抗菌活性。结果表明丁香酚是SA-EO中的主要化合物。AE显示出高酚类和黄酮类含量。SA-EO表现出抗氧化活性,其铁离子还原抗氧化能力(FRAP)的IC值为84.63±1.94μg/mL,总抗氧化能力(TAC)的IC值为52.88±1.44μg/mL。AE-SA表现出清除作用,其对1,1-二苯基-2-三硝基苯肼(DPPH)的EC值为266.52±50.62μg/mL,对一氧化氮(NO)的EC值为140.67±44.36μg/mL。抗葡萄球菌活性显示SA-EO具有显著敏感性,其最低抑菌浓度(MIC)和最低杀菌浓度(MBC)值范围为0.316至1.266mg/mL。即使在高浓度下,SA-EO也显示出低溶血活性,表明其具有安全的治疗应用潜力。总体而言,这些发现突出了丁香在对抗多重耐药细菌方面的潜力,并强调了其作为具有抗氧化特性的生物活性化合物来源的作用。