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植物抗生物膜诱导剂作为……的潜在抑制剂

Phyto anti-biofilm elicitors as potential inhibitors of .

作者信息

Prasad Ashwini, Devi Aishwarya Tripurasundari, Prasad M N Nagendra, Zameer Farhan, Shruthi Govindaraju, Shivamallu Chandan

机构信息

Department of Water and Health Faculty of Life Sciences, JSS Academy of Higher Education & Research, Sri Shivarathreeshwara Nagara, Mysore, Karnataka 570 015 India.

2Department of Biotechnology, Sri Jayachamarajendra College of Engineering, JSS Science and Technology University, Mysore, 570 006 Karnataka India.

出版信息

3 Biotech. 2019 Feb;9(2):53. doi: 10.1007/s13205-019-1582-2. Epub 2019 Jan 25.

Abstract

() infection is a global public health concern. Due to its high adaptability in various adverse environments (temperature, pH, adhesion, phenotypic forms), targeting the bacterium is quite challenging. Moreover, due to its high persistence, decreased patience compliance and emerging antibiotic resistance, researchers have been forced to search for novel candidates with lesser or no side effects. Hence, in the current study, phytobioactives have been screened for its anti-biofilm attributes against . Gastric biopsy samples have been screened using confirmatory techniques (microbiological, biochemical and molecular) for their virulent and non-virulent biomarkers. Physico-nutritive parameters were standardized. biofilms were assessed using microtitre plate assay. Biofilms' biomass and exopolysaccharide have been evaluated using crystal violet and ruthenium red staining, respectively. Anti-biofilm screening was performed using potent aqueous phytochemicals namely and . The results indicated the confluent growth of the biofilms confirmed through genotyping and grew best at 37 °C for 72 h at a pH of 7.5 on polystyrene plates. Further, among the phytochemicals tested, exhibited the highest anti-biofilm activity via a dose-dependent pattern. The overall observations of the study will pave way for newer approaches to understand and combat bacterial pathogenesis and will contribute towards better health and hygiene.

摘要

()感染是一个全球公共卫生问题。由于其在各种不利环境(温度、pH值、黏附、表型形式)中具有高度适应性,针对这种细菌极具挑战性。此外,由于其高持续性、患者依从性降低以及新出现的抗生素耐药性,研究人员被迫寻找副作用较小或无副作用的新型候选物。因此,在当前研究中,已针对其对……的抗生物膜特性筛选了植物生物活性物质。已使用确证技术(微生物学、生物化学和分子技术)对胃活检样本进行筛选,以检测其有毒和无毒生物标志物。对物理营养参数进行了标准化。使用微量滴定板法评估生物膜。分别使用结晶紫和钌红染色评估生物膜的生物量和胞外多糖。使用有效的水性植物化学物质……进行抗生物膜筛选。结果表明,通过基因分型证实了……生物膜的汇合生长,并在聚苯乙烯板上于37℃、pH值为7.5的条件下培养72小时时生长最佳。此外,在所测试的植物化学物质中,……通过剂量依赖性模式表现出最高的……抗生物膜活性。该研究的总体观察结果将为理解和对抗细菌发病机制开辟新途径,并将有助于改善健康和卫生状况。

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