从Lindera obtusiloba茎中分离出的secobutanolides及其抗炎活性
Hye Jin Yang1,2, Young-Sang Koh3, MinKyun Na1
1College of Pharmacy, Chungnam National University, Daejeon 305-764, Republic of Korea.
Molecules (Basel, Switzerland)
|September 28, 2024
概括
研究人员从Lindera obtusiloba中分离了四种secobutanolides,包括一个新的化合物. 三种化合物通过抑制免疫细胞中的关键炎症标志物,显示出显著的抗炎作用.
科学领域:
- 自然产品化学 自然产品化学
- 药理学 药理学是指药理学的学科.
- 免疫学 免疫学 免疫学
背景情况:
- 林德拉奥布图索洛巴 (Lindera obtusiloba) 是生物活性化合物的植物来源.
- 石甲是一种具有潜在生物活性的自然产品.
- 炎症在各种疾病中起着至关重要的作用.
研究的目的:
- 为了分离和描述来自Lindera obtusiloba茎提取物中的化合物.
- 为了评估隔离化合物的抗炎潜力.
- 为了研究化合物对脂聚糖 (LPS) 刺激的树突细胞的影响.
主要方法:
- 从Lindera obtusiloba树干中提取甲醇.
- 使用染色学技术分离和净化secobutanolides.
- 通过光谱数据分析 (NMR,MS) 阐明结构.
- 在体外抗炎试验中,使用由骨髓衍生的树突细胞,用LPS刺激.
- 量化IL-6和IL-12的生产.
主要成果:
- 他们分离了四种secosubutanolides,包括一种新型化合物secosubamolide B (3).
- 化合物1,2和3显著抑制了LPS诱导的IL-6和IL-12的p40产生.
- 活性化合物的IC50值在1.8至24.1μM之间.
结论:
- 林德拉奥布图西洛巴茎提取物含有具有抗炎性能的生物活性secobutanolides.
- 赛科苏巴莫利德B和相关化合物显示出开发新型抗炎药物的潜力.
- 这些发现支持L. obtusiloba的传统用途,并需要进一步调查.
相关概念视频
01:31Adrenergic Antagonists: ɑ and β-Receptor Blockers
419
Third-generation β-blockers, such as labetalol and carvedilol, represent a significant advancement in managing cardiovascular conditions. Unlike conventional β-blockers, which can induce peripheral vasoconstriction, third-generation drugs block α1 adrenoceptors. This promotes vasodilation through several mechanisms, such as increased nitric oxide production, inhibition of calcium ion entry, opening of potassium ion channels, and antioxidant action. Labetalol, for instance, is...
419
01:21Drugs for Treatment of Constipation-Predominant IBS
140
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...
140
01:29Drugs for Treatment of Ulcerative Colitis in IBD
128
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...
128