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抗生素保护直肠癌患者的辐射诱导组织损伤:一项受控试验
Christina Stene1, Jie Xu2, Sérgio Fallone de Andrade3
1Department of Surgery, Skåne University Hospital/Malmö, Lund University, Malmö, Sweden.
Clinical nutrition (Edinburgh, Scotland)
|April 18, 2025
概括
协生菌是益生菌和益生菌的混合物,通过减少炎症和保护肠道细菌,在放射治疗期间帮助保护直肠组织. 这种干预措施有望减轻直肠癌患者的辐射诱导肠道损伤.
科学领域:
- 胃肠病学 胃肠病学
- 在瘤学瘤学.
- 微生物学 微生物学
背景情况:
- 结肠直肠癌 (CRC) 治疗,特别是直肠癌,通常涉及新辅助放射治疗 (RT).
- 放射治疗可能导致严重的胃肠道副作用,为预防性干预提供了机会.
- 这项研究研究了益生菌和共生菌干预措施的潜力,以减轻RT诱导的肠道损伤.
研究的目的:
- 评估益生菌 (麦) 和共生菌 (麦与L. plantarum和蓝皮) 干预措施在预防RT诱导的肠道损伤方面的有效性.
- 评估这些干预措施对粘膜相关微生物群,炎症和肠道屏障功能的影响.
- 为了确定协生菌是否可以调节肠道微生物群,并减少患有直肠癌RT的患者的炎症.
主要方法:
- 30名接受短期手术前RT的直肠腺癌患者被分为对照组,益生菌组和共生菌组.
- 干预措施每天进行两周,从RT前一周开始.
- 血液,便和活检样本在RT前和后收集,以分析炎症标志物,肠道透性,组织病理学和微生物群组成.
主要成果:
- 益生菌和共生菌组在RT后的白细胞计数显著减少,与对照组不同.
- 组织病理学分析表明,与对照组和益生菌组相比,同生菌组的炎症和纤维化减少.
- 虽然RT降低了总体的细菌多样性,但共生组保持了较高比例的细菌物种,减少了25.1%,而前生物组的55.4%.
结论:
- 同生菌干预表明对直肠粘膜有保护作用,主要是通过局部减少炎症和调节肠道微生物群.
- 观察到的益处是组织特异性的,与短期治疗持续时间一致.
- 对更长期的共生干预措施进行进一步的研究是有必要的,以探索潜在的系统性炎症减少.
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