来自Lycium barbarum L的一种酸性多糖:隔离,净化,结构特征和对性结肠炎的治疗作用
Tian-Yu Liu1, Zi-Wei Han1, Si-Si Jia1
1School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, PR China.
International journal of biological macromolecules
|June 28, 2025
概括
来自Lycium barbarum L. (LBP 2-1) 的一种新型酸性异多糖化合物显示出治疗性结肠炎 (UC) 的前景. 它改善了肠道微生物群的多样性,并减少了小鼠的炎症,提供了一个自然的治疗策略.
科学领域:
- 自然产品化学 自然产品化学
- 胃肠病学 胃肠病学
- 微生物学 微生物学
背景情况:
- 性结肠炎 (UC) 的治疗需要解决肠道微生物失衡.
- 天然多糖类在UC中被探索其治疗潜力.
- 利巴巴鲁姆L.多糖为UC提供了潜在的自然干预措施.
研究的目的:
- 从Lycium barbarum L.中净化和描述一种酸性异多聚糖化物 (LBP 2-1).
- 在小鼠模型中评估LBP 2-1对性结肠炎 (UC) 的治疗效果.
- 阐明LBP 2-1的结构特征和UC改善机制.
主要方法:
- 使用单糖化合物组成分析,甲基化分析和NMR光谱学,对LBP 2-1进行净化和结构阐明.
- 在小鼠中诱导UC并评估LBP2-1对疾病活性指数 (DAI),结肠缩短和组织病理学的治疗作用.
- 使用测序技术,对用LBP 2-1治疗的UC小鼠肠道微生物组成进行分析.
主要成果:
- 鉴定出LBP 2-1是一种复杂的酸性异多聚糖,具有明确的骨干和分支结构.
- LBP 2-1治疗显著缓解了UC症状,包括体重减轻,结肠缩短和减少病理损伤.
- 在UC小鼠中,LBP 2-1增强了肠道微生物群的多样性,增加了有益细菌 (例如,Muribaculaceae),并减少了有害细菌 (例如,Bacteroides).
结论:
- LBP 2-1具有独特的复杂酸性异多聚糖化合物结构.
- LBP 2-1显示了性结肠炎治疗的显著治疗潜力.
- LBP 2-1通过调节肠道微生物群组成和减少炎症来发挥其有益作用.
相关概念视频
Drugs for Treatment of Ulcerative Colitis in IBD
243
Ulcerative colitis is a chronic inflammatory condition primarily affecting the colon and rectum. The primary drugs used in the treatment of ulcerative colitis are aminosalicylates. They exhibit anti-inflammatory and immunosuppressive properties. They modulate inflammatory mediators and inhibit the activity of nuclear factor κB (NF-κB). Aminosalicylates also reduce inflammation by inhibiting prostaglandin and leukotriene production and decreasing neutrophil chemotaxis and superoxide...
243
Drugs for Treatment of Constipation-Predominant IBS
351
Pharmacological therapies for IBS-C are designed to alleviate abdominal discomfort and enhance bowel function. In patients with IBS-C, fiber supplements may help soften stools and decrease straining, but may also lead to increased gas production and bloating. Osmotic laxatives like milk of magnesia are frequently used to soften stools and increase stool frequency in IBS-C patients. In addition, two drugs approved for use in severe IBS-C adult cases are linaclotide (Linzess) and lubiprostone...
351


