来自Croton Sublyratus的A-H克罗托诺酸,拉巴丹型的迪特尔佩诺酸具有抗炎活性
Jing-Jing Qi1,2, Ying Li3, Rui-Yao Fu1,2
1State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China.
Chemistry & biodiversity
|May 13, 2024
概括
从泰国药用植物Croton sublyratus中分离出了八种新的拉巴丹类型的二类植物. 一种化合物通过抑制细胞中氧化的产生,显示出抗炎活性.
科学领域:
- 自然产品化学 自然产品化学
- 植物化学 植物化学
- 药用植物研究 药用植物研究
背景情况:
- 克罗顿 (Croton sublyratus) 是泰国传统的药用植物.
- 它用于治疗虫感染和皮肤病症.
研究的目的:
- 从Croton sublyratus的空气部位中分离和描述新的四面体.
- 为了评估分离的化合物的抗炎潜力.
主要方法:
- 使用色谱技术分离化合物.
- 通过光谱数据分析 (NMR,MS),电子圆二元化 (ECD) 计算和单晶X射线衍射来阐明结构.
- 在体外抗炎测定使用脂聚糖诱导的RAW 264.7细胞来测量氧化 (NO) 生产.
主要成果:
- 分离了八种新的拉巴丹类型的二类,克罗托诺类A-H (1-8),以及一种已知的类似物 (9).
- 化合物6和7是罕见的14,15-dinor-labdane二烯化合物.
- 复合物8拥有一个罕见的14,15,17-trinor-labdane骨架.
- 化合物9通过抑制NO生产,显示出中度的抗炎活性.
结论:
- 这项研究成功地从Croton sublyratus.中发现了新型的二类动物.
- 克罗顿类动物 (Croton sublyratus) 是结构独特的拉巴丹二类动物的来源.
- 化合物9显示出作为抗炎剂的潜力.
相关概念视频
Antiasthma Drugs: Leukotriene Modifiers
281
Leukotriene modifiers, or cysteinyl leukotriene receptor antagonists, are medications used to manage chronic asthma. These agents target specific inflammatory mediators produced during arachidonic acid metabolism, an essential process in generating inflammation in the body.
Leukotriene modifiers work through two distinct mechanisms:
Leukotriene modifiers work through two distinct mechanisms:
281
Drugs for Treatment of Crohn's Disease in IBD Using Glucocorticoids
115
Glucocorticoids, a class of anti-inflammatory drugs, are pivotal in treating moderate to severe Crohn's disease by inducing remission. They exhibit their anti-inflammatory action by inhibiting the production of inflammatory cytokines such as tumor necrosis factor (TNF)-α, interleukin (IL)-1, and chemokines like IL-8. In addition, they reduce the expression of inflammatory cell adhesion molecules and inhibit gene transcription of nitric oxide synthase, phospholipase A2, cyclooxygenase-2...
115
Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF
131
Tumor Necrosis Factor (TNF), a proinflammatory cytokine, contributes significantly to the inflammation seen in Crohn's disease. It exists as soluble TNF and membrane-bound TNF, with actions mediated through TNF receptors (TNFR). TNFR activation leads to the release of proinflammatory cytokines, T-cell activation, collagen production, and leukocyte migration, all contributing to inflammation in Crohn's disease. Anti-TNF monoclonal antibodies, namely infliximab (Remicade), adalimumab...
131
Antiasthma Drugs: Inhaled Corticosteroids and Glucocorticoids
239
Inhaled corticosteroids (ICS) are anti-inflammatory drugs used primarily in treating persistent asthma and providing long-term maintenance. They target the bronchial mucosa, the lining of the airways, to control inflammation, a critical factor in asthma progression and exacerbation.
ICS work through a multifaceted mechanism of action. They suppress the inflammatory response caused by the proliferation of TH cells. They also reduce the transcription of the IL-2 gene, which is involved in the...
ICS work through a multifaceted mechanism of action. They suppress the inflammatory response caused by the proliferation of TH cells. They also reduce the transcription of the IL-2 gene, which is involved in the...
239
Local Anesthetics: Chemistry and Structure-Activity Relationship
4.3K
Local anesthetics (LAs) are drugs that induce a temporary loss of sensation in a limited body area, preventing pain. Cocaine was the first local anesthetic discovered in the late 19th century. Cocaine is a benzoic acid ester obtained from the leaves of coca shrubs and was often used for its psychotropic effects. Cocaine was first isolated in 1860 by Albert Niemann. Sigmund Freud studied the physiological actions of cocaine. Carl Koller later introduced it into clinical practice in 1884 as a...
4.3K
Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents
158
Crohn's disease is an inflammatory bowel disorder marked by chronic inflammation of the GI tract. Various treatment strategies for Crohn's disease are employed, such as immunomodulatory agents, glucocorticoids, and biologics or anti-TNF therapy. Azathioprine (Imuran), a commonly used immunomodulatory drug for Crohn's disease, is converted in the body to mercaptopurine, which inhibits purine biosynthesis and cell proliferation. Both are utilized in severe cases of Inflammatory Bowel...
158


