Labdane-
Nguyen Thi Hien1, Dinh Thi Cuc2, Nguyen Thi Thanh Thuy3
1Faculty of Natural Resources & Environment, Vietnam National University of Agriculture (VNUA), Hanoi 12406, Vietnam.
Journal of Asian Natural Products Research
|June 8, 2023
Summary
Researchers isolated thirteen compounds from Curcuma aromatica roots, including a new labdane diterpenoid. Three compounds significantly inhibited nitric oxide production in macrophages, indicating potential anti-inflammatory properties.
Area of Science:
- Natural Product Chemistry
- Pharmacology
Background:
- Curcuma aromatica, a traditional medicinal plant, contains various bioactive compounds.
- Inflammation is a complex biological response implicated in numerous diseases.
Purpose of the Study:
- To isolate and characterize chemical constituents from the roots of Curcuma aromatica.
- To evaluate the anti-inflammatory potential of isolated compounds by assessing their effect on nitric oxide production.
Main Methods:
- Phytochemical investigation using ethanol extraction of Curcuma aromatica roots.
- Structure elucidation of isolated compounds via 1D-, 2D-NMR spectroscopy and HR-ESI-MS.
- In vitro anti-inflammatory assay using lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages to measure nitric oxide production.
Main Results:
- One new labdane-type diterpenoid, curcumatin (1), and twelve known compounds were isolated.
- Coronarin D (2), zerumin A (5), and zingiberenol (13) demonstrated significant inhibition of nitric oxide production.
- The IC50 values for compounds 2, 5, and 13 were 8.8 ± 1.7, 4.0 ± 0.9, and 6.2 ± 0.4 µM, respectively.
Conclusions:
- The study successfully isolated and identified thirteen compounds from Curcuma aromatica roots.
- Compounds 2, 5, and 13 exhibit notable anti-inflammatory activity by suppressing nitric oxide production in macrophages.
- These findings suggest that Curcuma aromatica possesses compounds with therapeutic potential for inflammatory conditions.
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