(+)-9'-O-trans-feruloyl-5,5'-dimethoxylariciresinol may have anti-allergic inflammatory effect, it can inhibit release of histamine from mast cells. It shows cytotoxicity against a small panel of human tumor cell lines, with ED50 values of 9.86 to approximately 12.68 microg/ml.
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Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C)
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
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The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Arch. Pharm. Res.,2014 Apr;37(4):467-72.
A new neolignan and lignans from the stems of Lindera obtusiloba Blume and their anti-allergic inflammatory effects.[Pubmed: 24014307
METHODS AND RESULTS:
A new neolignan, linderin A (1), together with six known lignans, (+)-xanthoxyol (2), pluviatilol (3), actiforin (4), (+)-syringaresinol (5), (+)-(7S,8R,8'R)-acuminatolide (6), and (+)-9'-O-trans-feruloyl-5,5'-dimethoxylariciresinol (9-O-Feruloyl-5,5'-dimethoxylariciresinol,7) were isolated from the stems of Lindera obtusiloba Blume (Lauraceae). Their chemical structures were elucidated by a combination of spectroscopic analysis and chemical reaction, and the absolute configuration of 1 was determined by Mosher's esterification. The effect of compounds 1-7 on tumor necrosis factor (TNF)-α, interleukin(IL)-6, and their inhibitory activity of histamine release were examined using human mast cells. Among the lignans tested, compounds 1, 3, 4, 6, and 7 inhibited release of histamine from mast cells. Especially, compounds 1 and 4 suppressed the gene expressions of pro-inflammatory cytokines, TNF-α, and IL-6 in human mast cells.
Our findings suggest that the lignan constituents in L. obtusiloba may contribute to its anti-allergic inflammatory effects.
Arch Pharm Res. 1999 Aug;22(4):417-22.
Two new lignans from Lindera obtusiloba blume.[Pubmed: 10489885
METHODS AND RESULTS:
Two new furanolignans (3, 5), together with three known lignans (1, 2, 4), were isolated from the stem of Lindera obtusiloba (Lauraceae). The structures of the compounds were determined as actifolin (1), pluviatilol (2), 5,6-dihydroxymatairesinol (3), (+)-syringaresinol (4), and (+)-9'-O-trans-feruloyl-5,5'-dimethoxylariciresinol (9-O-Feruloyl-5,5'-dimethoxylariciresinol,5) on the basis of physicochemical and spectroscopic evidences.
Compounds 1, 2, 3, and 5 showed cytotoxicity against a small panel of human tumor cell lines with ED50 values of 3.40 to approximately 19.27 microg/ml.