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南非:抗Helicobacter pylori活动,化学和毒性
Sarhana Dinat1, Ané Orchard1, Efficient Ncube2
1Department of Pharmacy and Pharmacology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
南非 прополис对常见的肠道病原体Helicobacter pylori表现出强大的抗菌活性. 这种天然蜜蜂产品在治疗H. pylori感染方面表现有前途,没有观察到毒性.
科学领域:
- 药理学和微生物学 药理学和微生物学
- 自然产品化学 自然产品化学
背景情况:
- 蜂是一种来自蜜蜂的树脂,以其抗微生物特性而闻名.
- 杆菌是重要的胃肠道病原体.
- 南非 прополис对H.pylori的抗菌潜力仍未得到研究.
研究的目的:
- 评估南非提取物对H. pylori的抗菌活性.
- 为了评估这些 прополис提取物的毒性.
- 为了确定对观察到的抗H. pylori活性负责的关键化学化合物.
主要方法:
- 收集和以乙醇提取51个南非和3个巴西样.
- 抗微生物微稀释试验,以确定针对临床H. pylori菌株的最小抑制度 (MIC).
- 盐水杀伤性测定用于毒性评估和超高性能液体染色体质谱法 (UPLC-MS) 用于化学分析.
主要成果:
- 与巴西样本 (MIC ≤0.51 mg/mL) 相比,南非 прополис提取物显示出对H. pylori的抗菌活性优越.
- 皮诺森布林,3-O-乙皮诺班克辛和皮诺班克辛被确定为活性提取物中最丰富的化合物.
- 所有测试的提取物在盐水死亡率测试中被发现是无毒的 (死亡率<50%).
结论:
- 南非蜂具有重要的体外抗菌潜力,可以对抗Helicobacter pylori.
- 像pinocembrin衍生物这样的特定化合物可能是观察到的抗H. pylori效应的原因.
- 是一种有前途的天然药物,可用于开发治疗H. pylori感染的方法.
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