| In vitro: |
| Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi . 2013 Jul;29(7):681-684. | | [Anti-inflammation of flavonoid compounds from Dalbergia odorifera T. Chen in lipopolysaccharide stimulated RAW264.7 macrophages][Pubmed: 23837974] | | Objective: To screen, isolate and identify the compounds with anti-inflammatory activity from Dalbergia odorifera T. Chen.
Methods: Lipopolysaccharide (LPS) was used to stimulate RAW264.7 macrophages, and this model was further used to screen and separate active compounds from Dalbergia odorifera T. Chen, followed by compound chemical structure identification using mass spectrometry and nuclear magnetic resonance. Griess assay was performed to measure the released nitric oxide (NO), and ELISA was applied to detect TNF-α content.
Results: Compound I (sativanone) showed strong anti-inflammatory activity (IC50;=12.48 g/mL). Isoliquiritigenin (compound III), naringenin (compound IV) and liquiritigenin (compound V) had moderate anti-inflammatory activity, with IC50; value at 18.33, 42.59, 29.43 g/mL, respectively. Compound II and compound VI had no anti-inflammatory activity with concentration at 50 g/mL. Sativanone, isoliquiritigenin, liquiritigenin and naringenin at their concentrations ranging from 3.125-50 g/mL, could inhibit NO release in RAW264.7 cells stimulated by LPS. Sativanone (compound I) could also inhibit TNF-α secretion from LPS stimulated RAW264.7 cells.
Conclusion: Liquiritigenin, isoliquiritigenin, naringenin and sativanone isolated from Dalbergia odorifera T. Chen, could reduce NO release from LPS-stimulated macrophage cell line (RAW264.7), at a dose-dependent manner. What's more, sativanone play an anti-inflammatory role also through inhibiting inflammatory cytokine TNF-α. | | Fitoterapia . 2018 Oct;130:169-174. | | Isoflavonoids with inhibiting effects on human hyaluronidase-1 and norneolignan clitorienolactone B from Ononis spinosa L. root extract[Pubmed: 30176279] | | Human hyaluronidase-1 (Hyal-1) is one of the main enzymes in the homeostasis of hyaluronic acid (HA), the main polysaccharide of extracellular matrix. Development of specific Hyal-1 inhibitors might be a promising target for improved wound healing, tissue regeneration, and looking at renal function for diuresis. By using surface-displayed Hyal-1 on Escherichia coli F470 cells, HA as substrate and stains-all method for quantification of undegraded HA, the respective enzyme activity can be determined easily. Based on the traditional use of extracts from the roots from Ononis spinosa L. (Restharrow root) as a weak diuretic to achieve flushing of the urinary tract and as an adjuvant in minor urinary complaints the herbal material was selected for bioactivity guided fractionation for compounds with Hyal-1 inhibition activity. Hot water and hydroalcoholic extracts showed moderate inhibiting effects (IC50 1.36 resp. 0.73 mg/mL) while dichloromethane extract exerted an IC50 of 190 μg/mL. Bioassay guided fractionation of the dichloromethane extract yielded four isoflavonoids with anti Hyal-1 activity: onogenin 1, sativanone 2, medicarpin 3 and calycosin-D 4 with inhibition rates of 25.4, 61.2, 22.4 and 23.0%, respectively at test concentration level of 250 μM. The norneolignan clitorienolactone B 5, the first time described for the genus Ononis, was inactive. The IC50 of sativanone, the most active compound was determined with 1501 μM, which was better than that of the positive control glycyrrhizinic acid (177 μM). Thus, a possible explanation for diuretic properties of Ononis spinosa L. root extract may be postulated from the results so far obtained. | | Molecules . 2011 Nov 25;16(12):9775-9782. | | Antibacterial activity of the flavonoids from Dalbergia odorifera on Ralstonia solanacearum[Pubmed: 22117168] | | Phytohemical investigation on the heartwood of Dalbergia odorifera resulted in the isolation of nine flavonoids. Their structures were elucidated as sativanone (1), (3R)-vestitone (2), (3R)-2',3',7-trihydroxy-4'-methoxyisoflavanone (3), (3R)-4'-methoxy-2',3,7-trihydroxyisoflavanone (4), carthamidin (5), liquiritigenin (6), isoliquiritigenin (7), (3R)-vestitol (8), and sulfuretin (9) based on their spectral data. All compounds were evaluated for their inhibitory activity against Ralstonia solanacearum. This is the first report about anti-R. solanacearum activity of the compounds from D. odorifera. | | Planta Med . 1998 Mar;64(2):153-158. | | Three new flavonoids and antiallergic, anti-inflammatory constituents from the heartwood of Dalbergia odorifera[Pubmed: 9525107] | | Three new flavonoids, (3R)-4'-methoxy-2',3,7-trihydroxyisoflavanone (11), 7-methoxy-3,3',4',6-tetrahydroxyflavone (18), and 2',7-dihydroxy-4',5'-dimethoxyisoflavone (22), were isolated from the heartwood of Dalbergia odorifera T. Chen. (Leguminosae), together with twenty-two known compounds, (S)-4-methoxydalbergione (1), cearoin (2), medicarpin (3), formononetin (4), sativanone (5), 3-hydroxy-9-methoxy-coumestan (6), meliotocarpan A (7), isoliquiritigenin (8), stevein (9), liquiritigenin (10), 3',4',7-trihydroxyflavanone (12), butein (13), 3'-hydroxymelanettin (14), koparin (15), bowdichione (16), fisetin (17), melanettin (19), sulfuretin (20), 3'-hydroxydaidzein (21), 3'-O-methylviolanone (23), xenognosin B (24), and dalbergin (25). These flavonoids were evaluated in antiallergic and anti-inflammatory tests. The results showed that (S)-4-methoxydalbergione (1) and cearoin (2) exhibited antiallergic activity while (S)-4-methoxydalbergione (1), cearoin (2), butein (13), koparin (15), bowdichione (16), 3'-O-methylviolanone (23), and xenognosin B (24) showed significant anti-inflammatory activity. |
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| In vivo: |
| Biosci Biotechnol Biochem . 2015;79(5):760-766. | | Ethanol extract of Dalbergia odorifera protects skin keratinocytes against ultraviolet B-induced photoaging by suppressing production of reactive oxygen speciesEthanol extract of Dalbergia odorifera protects skin keratinocytes against ultraviolet B-induced photoaging by suppressing production of reactive oxygen species[Pubmed: 25560618] | | Dalbergia odorifera T. Chen (Leguminosae), an indigenous medicinal herb, has been widely used in northern and eastern Asia to treat diverse diseases. Here, we investigated the anti-senescent effects of ethanolic extracts of Dalbergia odorifera (EEDO) in ultraviolet (UV) B-irradiated skin cells. EEDO significantly inhibited UVB-induced senescence of human keratinocytes in a concentration-dependent manner, concomitant with inhibition of reactive oxygen species (ROS) generation. UVB-induced increases in the levels of p53 and p21, biomarkers of cellular senescence, were almost completely abolished in the presence of EEDO. Sativanone, a major constituent of EEDO, also attenuated UVB-induced senescence and ROS generation in keratinocytes, indicating that sativanone is an indexing (marker) molecule for the anti-senescence properties of EEDO. Finally, treatment of EEDO to mice exposed to UVB significantly reduced ROS levels and the number of senescent cells in the skin. Thus, EEDO confers resistance to UVB-induced cellular senescence by inhibiting ROS generation in skin cells. | | Drug Dev Res . 2015 Feb;76(1):48-56. | | Dalbergia odorifera Extract Ameliorates UVB-Induced Wrinkle Formation by Modulating Expression of Extracellular Matrix Proteins[Pubmed: 25620496] | | Preclinical Research Emerging evidence suggests that Dalbergia odorifera T. Chen (Leguminosae), an indigenous medicinal herb, has therapeutic potential. This study examined the antiwrinkle effects of ethanol extracts of D. odorifera in UVB-irradiated human skin cells. Ethanol extracts of D. odorifera and thier constituents, dalbergin and sativanone, induced expression of collagen type I and transforming growth factor (TGF)-β1 in human dermal fibroblasts. In HR-1 hairless mice exposed to UVB, the ethanol extract reduced wrinkle formation and skin thickness. This inhibitory effect of ethanol extract was associated with the restoration of collagen type I, TGF-β1, and elastin to levels approaching those in skin tissues not exposed to UVB, which was accompanied by the reduction of matrix metalloproteinase-2 and upregulation of tissue inhibitors of metalloproteinase (TIMP)-2 and TIMP-3 in skin tissue exposed to UVB. These results suggest that the ethanol extracts prevent some effects of photoaging and maintain skin integrity by regulating the degradation of the extracellular matrix proteins. | | J Chromatogr B Analyt Technol Biomed Life Sci . 2005 Dec 27;829(1-2):35-44. | | Identification and determination of major flavonoids in rat serum by HPLC-UV and HPLC-MS methods following oral administration of Dalbergiaodorifera extract[Pubmed: 16233995] | | The major flavonoids in rat serum after oral administration of Dalbergia odorifera extract were analyzed qualitatively and quantitatively by high performance liquid chromatography (HPLC) and its coupling to mass spectrometry (HPLC-MS). Utilizing HPLC-MS technique, 18 flavonoids including five isoflavones, four isoflavanones, four neoflavones, two flavanones, two chalcones, one isoflavanonol were identified in free form in serum sample based on comparison with the authentic standards. Furthermore, the amounts of the four prominent flavonoids, (3R)-4'-methoxy-2',3,7-trihydroxyisoflavanone, vestitone, formononetin and sativanone were determined in serum by HPLC-UV with internal standard method. The method was validated and utilized in pharmacokinetic studies of these four analytes. This is the first report on identification and determination of the major flavonoids in rat serum after oral administration of D. odorifera extract and the results provided a firm basis for clarifying the pharmacological effect of D. odorifera and evaluating the clinical applications of this medicinal herb. |
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