从Magnolia officinalis Rehd.的根树皮中获得结构多样化的新树木. 和威尔斯及其生物活性
相关实验视频
Updated: Sep 17, 2025

05:57
Quantitative 31P NMR Analysis of Lignins and Tannins
Published on: August 2, 2021
13.2K
Bo Tang1, Jingying Sun1, Sen Zhang1
1State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China.
Bioorganic chemistry
|June 29, 2025
概括
研究人员从Magnolia officinalis根皮中发现了新的化合物,其中一些显示出显著的肝脏和脏保护作用. 化合物15通过增强胃粘膜屏障功能,表现出强大的抗活性.
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.
- 药用化学 医学化学
背景情况:
- 香 (Magnolia officinalis) 是一种传统的药用植物,具有丰富的植物化学特征.
- 研究其根皮可以产生具有潜在治疗应用的新型化合物.
- 了解这些化合物的生物活性对于药物发现至关重要.
研究的目的:
- 从Magnolia officinalis根皮中分离和鉴定新型的美特类药物和magnolol类似物.
- 评估分离的化合物的肝保护性,保护性和抗性活性.
- 阐明化合物15的抗活性作用机制.
主要方法:
- 植物化学分析涉及NMR,HRESIMS和电子循环二元化 (ECD) 计算,以阐明结构.
- 在体外测试以评估对APAP和H2O2诱导的肝损伤的肝保护作用.
- 评估脏保护作用和抗活性的体内研究,包括胃粘液和蛋白质表达的分析.
主要成果:
- 分离了六种未被描述的美特类 (1-6) 和八种新型磁诺醇类型 (7-14),以及八种已知的化合物 (15-22).
- 化合物7,12和15表现出显著的肝保护活性.
- 化合物2,4和12显示出显著的脏保护作用.
- 化合物15通过保护胃粘液,增强MUC6,CFTR和SLC26A3表达,并抑制亡,表现出显著的抗活性.
结论:
- 该研究成功地分离和描述了Magnolia officinalis根皮中的新型化合物.
- 一些孤立的化合物具有显著的肝保护和保护性质.
- 化合物15显示了通过多种机制治疗胃的有希望的治疗潜力,包括加强胃粘膜屏障和减少亡.
关键词:
这是一种抗的药物.胃粘膜障碍物 胃粘膜障碍物 胃粘膜障碍物肝炎保护 肝炎保护马格诺利亚官员植物 (Magnolia officinalis) 是一个植物.甲基烯化物 (Meroterpenoid) 是一种烯化物.脏保护 脏保护更多相关视频
相关概念视频
Adrenergic Agonists: Chemistry and Structure-Activity Relationship
3.3K
Adrenergic agonists' structure-activity relationship (SAR) determines their selectivity and efficacy. These agonists comprise a phenylethylamine moiety with an aromatic ring and an ethylamine side chain.
Aromatic ring substitutions: Substituting the aromatic ring with –OH groups at positions 3 and 4 yields catecholamines (e.g., epinephrine), which have a high affinity for adrenoceptors. Hydrogen bonding between –OH groups and receptors enhances adrenergic activity.
Separation of...
Aromatic ring substitutions: Substituting the aromatic ring with –OH groups at positions 3 and 4 yields catecholamines (e.g., epinephrine), which have a high affinity for adrenoceptors. Hydrogen bonding between –OH groups and receptors enhances adrenergic activity.
Separation of...
3.3K
Local Anesthetics: Chemistry and Structure-Activity Relationship
5.5K
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...
5.5K
Direct-Acting Cholinergic Agonists: Chemistry and Structure-Activity Relationship
1.3K
Cholinergic agonists or cholinomimetics mimic the action of acetylcholine to stimulate the parasympathetic nervous system. They are categorized into direct-acting and indirect-acting agents. The direct-acting cholinergic drugs induce the parasympathetic response by directly binding to the muscarinic or nicotine receptors. In comparison, the indirect-acting cholinergic drugs prevent acetylcholine hydrolysis, indirectly contributing to the extended parasympathetic response.
The direct-acting...
The direct-acting...
1.3K
Indirect-Acting Cholinergic Agonists: Chemistry and Structure-Activity Relationship
667
Indirect-acting cholinergic agonists are agents that interact with the acetylcholinesterase enzyme in the synaptic cleft, preventing the breakdown of acetylcholine into choline and acetate. Consequently, the concentration of acetylcholine in the synaptic cleft increases. These agonists can be classified into reversible and irreversible inhibitors based on their duration of action.
Reversible inhibitors display short to medium durations of action. Short-acting agents include simple alcohols with...
Reversible inhibitors display short to medium durations of action. Short-acting agents include simple alcohols with...
667

