Dehydrogeijerin
Dehydrogeijerin significantly inhibits the inflammatory activity of activated macrophages, suggesting that it could be a potential candidate for the treatment of inflammatory disease.
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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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Int Immunopharmacol. 2012 Dec;14(4):734-9.
Anti-inflammatory effects of dehydrogeijerin in LPS-stimulated murine macrophages.[Pubmed:
23102664]
METHODS AND RESULTS:
In this study, we investigated whether Heracleum (H) moellendorffii Hance-derived Dehydrogeijerin and geijerin could be used to suppress lipopolysaccharide (LPS)-induced inflammatory responses in murine macrophage cell lines, Raw 264.7 cells. Dehydrogeijerin reduced nitric oxide (NO) and inducible nitric oxide synthase (iNOS) production from LPS-stimulated Raw 264.7 cells, but on the other hand, geijerin did not reduce NO production. Dehydrogeijerin, unlike geijerin, has a double bond at C2'-C3' with an oxo function at C1'. Pre-treatment of Raw 264.7 cells with Dehydrogeijerin reduced the production of cyclooxigenase-2 (COX-2) and pro-inflammatory cytokines. These inhibitory effects were associated with decreases in the phosphorylation of mitogen-activated protein (MAP) kinases.
CONCLUSIONS:
Our results indicate that Dehydrogeijerin significantly inhibits the inflammatory activity of activated macrophages, suggesting that Dehydrogeijerin could be a potential candidate for the treatment of inflammatory disease.
Zhongguo Zhong Yao Za Zhi. 2015 Jun;40(11):2148-56.
Chemical constituents from lipophilic parts in roots of Angelica dahurica var. formosana cv. Chuanbaizhi.[Pubmed:
26552172]
The chemical constituents from lipophilic parts in the roots of Angelica dahurica var. formosana cv. Chuanbaizhi were studied in this paper.
METHODS AND RESULTS:
The compounds were separated and purified by repeated column chromatographic methods on silica gel and HPLC, and the chemical structures of compounds were determined by spectral data analyses. Twenty-nine compounds were obtained and identified as isoimperatorin (1), β-sitosterol (2), imperatorin (3), bergapten (4), osthenol (5), xanthotoxin (6), isoimpinellin (7), Dehydrogeijerin (8), phellopterin (9), isodemethylfuropinarine (10), 7-demethylsuberosin (11), alloimperatorin (12), xanthotoxol (13), isooxypeucedanin (14), alloisoimperatorin (15), demethylfuropinarine (16), 5-hydroxy-8-methoxypsoralen (17), oxypeucedanin methanolate (18), pabulenol (19), byakangelicin (20), marmesin (21), (+) -decursinol (22), heraclenol (23), oxypeucedanin hydrate (24), marmesinin (25), ulopterol (26), erythro-guaiacylglycerol-β-ferulic acid ether (27), threo-guaiacylglycerol-β-ferulic acid ether (28), and uracil (29).
CONCLUSIONS:
Compounds 5, 8, 11, 18, 21-23, and 26-28 were obtained from the roots of title plant for the first time.
