Dunnianol
Dunnianol, macranthol and isodunnianol have anti-inflammatory activity, they can increase NAG-1(multiple targets related to inflammation) activity 1.5-3.0 fold and decrease cellular oxidative stress by 40-65%, they show substantial activity against iNOS.
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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.
Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com
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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Planta Med.,2014, 80(10):807-807.
Compounds from the bark of Illicium tsaii and their anti-inflammatory activity[Reference:
WebLink]
Illicium tsaii is a Chinese native species growing in northwest China. The bark of I. tsaii, has been applied for the treatment of rheumatoid arthritis.
METHODS AND RESULTS:
Phytochemical investigation on this species resulted in the isolation and characterization of 28 compounds from the stem bark of I. tsaii. Structure determination was accomplished by means of spectroscopic data interpretation. The biological activity of the isolated compounds was evaluated toward multiple targets related to inflammation such as NAG-1, NF-κB, iNOS and ROS. Sesquilignans showed significant activity, among which Dunnianol, macranthol and isoDunnianol increased NAG-1 activity 1.5 – 3.0 fold and decreased cellular oxidative stress by 40 – 65%.
CONCLUSIONS:
These three compounds showed substantial activity against iNOS, while only macranthol showed activity against NF-κB. This is the first study on the constituents of I. tsaii and evaluation of their biological activity.
Synlett (Impact Factor: 2.46). 03/2010; 2010(04):633-635.
A Concise Synthesis of Dunnianol[Reference:
WebLink]
METHODS AND RESULTS:
A short total synthesis of the neosesquilignan Dunnianol which features a double Suzuki cross-coupling as a key step is described.
