| Description: |
13-Hydroxygermacrone inhibits UVB-induced upregulation of the mRNA and protein expression levels of MMP-1, MMP-2, and MMP-3 in human keratinocytes (HaCaT). 13-Hydroxygermacrone shows a protective effect against D-GalN/tumor necrosis factor-alpha-induced liver injury in mice at a dose of 50 mg/kg p.o. |
| Targets: |
MMP(e.g.TIMP) | TNF-α |
| In vitro: |
| Arch Pharm Res. 2015 Oct;38(10):1752-60. | | Germacrane sesquiterpenes isolated from the rhizome of Curcuma xanthorrhiza Roxb. inhibit UVB-induced upregulation of MMP-1, -2, and -3 expression in human keratinocytes.[Pubmed: 25471012] |
METHODS AND RESULTS:
Four sesquiterpenes were isolated from the rhizome of Curcuma xanthorrhiza Roxb.: furanodiene (1), germacrone (2), furanodienone (3), and 13-Hydroxygermacrone (4). Importantly, this was the first time compounds 1 and 13-Hydroxygermacrone were isolated from this plant. The chemical structures of these compounds were determined using 1D- and 2D-nuclear magnetic resonance, infrared spectroscopy, and electron ionization mass spectrometry analyses.
CONCLUSIONS:
Among the isolated compounds, compounds 2 and 13-Hydroxygermacrone inhibited UVB-induced upregulation of the mRNA and protein expression levels of MMP-1, MMP-2, and MMP-3 in human keratinocytes (HaCaT). Moreover, this upregulation occurred in a dose-dependent manner over the range of 1-10 μM for each compound. | | Nat Prod Res. 2006 Jun;20(7):680-5. | | Anti-inflammatory sesquiterpenes from Curcuma zedoaria.[Pubmed: 16901812] |
METHODS AND RESULTS:
From the methanolic extract of the rhizome of Curcuma zedoaria, we isolated anti-inflammatory sesquiterpene furanodiene (1) and furanodienone (2) along with new sesquiterpene compound 3 and known eight sesquiterpenes, zederone (4), curzerenone (5), curzeone (6), germacrone (7), 13-Hydroxygermacrone (8), dehydrocurdione (9), curcumenone (10), and zedoaronediol (11). Their structures were elucidated on the basis of spectroscopic data. The anti-inflammatory effect of isolated components on 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced inflammation of mouse ears were examined.
CONCLUSIONS:
Compounds 1 and 2 suppressed the TPA-induced inflammation of mouse ears by 75% and 53%, respectively, at a dose of 1.0 micromol. Their activities are comparable to that of indomethacin, the normally used anti-inflammatory agent. |
|
| In vivo: |
| Biol Pharm Bull. 2002 May;25(5):627-31. | | Medicinal foodstuffs. XXIX. Potent protective effects of sesquiterpenes and curcumin from Zedoariae Rhizoma on liver injury induced by D-galactosamine/lipopolysaccharide or tumor necrosis factor-alpha.[Pubmed: 12033504] | The 80% aqueous acetone extract of Zedoariae Rhizoma was found to show a protective effect against D-galactosamine (D-GalN)/lipopolysaccharide-induced acute liver injury in mice.
METHODS AND RESULTS:
To clarify the active compounds, the principal constituents were examined and 11 sesquiterpenes (furanodiene, curdione, neocurdrione, dehydrocurdione, germacrone, 13-Hydroxygermacrone, curcumenol, isocurcumenol, aerugidiol, zedoarondiol, and curcumenone) and a diarylheptanoid (curcumin) were found to inhibit the increase in serum aspartate aminotransaminase and alanine aminotransaminase at a dose of 50 mg/kg p.o. in agreement with the previous in vitro studies, except for dehydrocurdione, aerugidiol, and zedoarondiol. In particular, curdione, neocurdione, curcumenol, and isocurcumenol potently inhibited the increase at a dose of 12.5 mg/kg p.o. Furthermore, the eight sesquiterpenes, furanodiene, curdione, neocurdione, dehydrocurdione, germacrone, 13-Hydroxygermacrone, curcumenol, and curcumenone, also showed a protective effect against D-GalN/tumor necrosis factor-alpha-induced liver injury in mice at a dose of 50 mg/kg p.o. |
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