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Anti-Inflammatory Withanolides From Physalis angulata Var. villosa Bonati
Yu Zhang1,2,3, Hong-Zhi Xu1,2,3, Peng Wang1,2,3
1State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, People's Republic of China.
This study identified new withanolide derivatives from Physalis angulata. Some compounds show promising anti-inflammatory effects by inhibiting nitric oxide, suggesting potential for treating inflammation-related diseases.
Area of Science:
- Natural Product Chemistry
- Pharmacology
- Medicinal Chemistry
Background:
- Physalis angulata var. villosa Bonati is a plant source of bioactive compounds.
- Withanolides are a class of steroidal lactones with diverse biological activities.
- Inflammation is a complex biological response implicated in numerous diseases.
Purpose of the Study:
- To isolate and characterize new and known withanolide derivatives from Physalis angulata var. villosa Bonati.
- To evaluate the anti-inflammatory potential of the isolated compounds.
- To investigate the chemotaxonomic significance of the identified compounds.
Main Methods:
- Extraction and isolation of compounds from plant material.
- Structure elucidation using spectral data (NMR, MS) and quantum chemical calculations.
- Assay for nitric oxide inhibitory activity in lipopolysaccharide-stimulated RAW264.7 cells.
Main Results:
- Two new withanolide derivatives (1, 2) and 12 known analogs (3-14) were identified.
- Compounds 2, 3, and 14 exhibited significant nitric oxide inhibitory effects (IC50 values: 4.93–8.58 µM).
- The study provides insights into the chemotaxonomy of Physalis angulata var. villosa Bonati.
Conclusions:
- Withanolide derivatives from Physalis angulata possess notable anti-inflammatory properties.
- These compounds demonstrate potential for the development of therapeutic agents for inflammation-related diseases.
- Further research into the anti-inflammatory mechanisms of these withanolides is warranted.
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