Boeravinone E
Boeravinone E exhibits spasmolytic activity.
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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. 2005 Oct;71(10):928-32.
Isolation of new rotenoids from Boerhaavia diffusa and evaluation of their effect on intestinal motility.[Pubmed:
16254824]
METHODS AND RESULTS:
A bioassay-guided separation of a methanolic extract obtained from the roots of Boerhaavia diffusa L. (Nyctaginaceae) allowed us to isolate five compounds belonging to the class of rotenoids: the known boeravinone D ( 1), Boeravinone E ( 2), compound 5 and two novel compounds that we have named boeravinone G ( 3) and boeravinone H ( 4). The structures of the new molecules have been determined on the basis of their HR-EI-MS, (1)H- and (13)C-NMR and 2D-NMR (HMQC, HMBC) data. All the isolated rotenoids have been evaluated for their effect on intestinal motility in vitro.
CONCLUSIONS:
Three of them (boeravinone G, Boeravinone E and compound 5) exhibited spasmolytic activity. Preliminary structure-activity relationships have been established highlighting the effect of substitutions on rings B and D.
Appl Biochem Biotechnol. 2014 Apr;172(7):3529-37.
A β-secretase (BACE1)-inhibiting C-methylrotenoid induced by yeast elicitation in Abronia nana suspension cultures.[Pubmed:
24557951]
Suspension cultures of Abronia nana were established to produce C-methylisoflavones.
METHODS AND RESULTS:
Treatment of the A. nana cultures with yeast elicitor induced Boeravinone E (1), with maximum induction at 24 h after elicitor treatment. Of the biotic and abiotic elicitors tested, yeast extract gave the strongest induction of 1. The IC50 value of 1 against β-secretase (β-amyloid cleaving enzyme-1) was 5.57 μM.
CONCLUSIONS:
Other proteases such as trypsin, chymotrypsin, and elastase were not inhibited by concentrations up to 1.0 mM, indicating that inhibition of β-secretase was specific. 1 was noncompetitive in Dixon plot, and Ki value was 3.79 μM.
