Cnidilin
Cnidilin has high BBB permeability and has pharmacokinetic potentials for the treatment of central nervous system diseases.
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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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Fitoterapia. 2013 Mar;85:144-53.
In vitro permeability analysis, pharmacokinetic and brain distribution study in mice of imperatorin, isoimperatorin and cnidilin in Radix Angelicae Dahuricae.[Pubmed:
23353658]
Coumarins are important constituents of Radix Angelicae Dahuricae, a well-known traditional Chinese medicine possess several known bioactivities with potentials in the treatment of central nervous system diseases.
METHODS AND RESULTS:
By using an HPLC-MS/MS method, we analyzed the in vivo plasma and brain pharmacokinetics of three ingredients of coumarins, including imperatorin, isoimperatorin and Cnidilin in mice after oral administration of Dahuricae extract at doses of 800mg/kg. The biosamples were prepared using acetonitrile precipitation and the separation was achieved on an XDB-C18 column by gradient elution. The BBB permeability and P-gp-mediated efflux were further examined in Madin Canine kidney cells transfected with full length cDNA for human multidrug resistance gene1 (MDCKII-MDR1). Our results demonstrate that the method has excellent and satisfactory selectivity, sensitivity, linearity, precision, and accuracy for simultaneous determination of imperatorin, isoimperatorin and Cnidilin. The pharmacokinetics parameters were determined by using noncompartmental analyses, including the AUC(0-t) in plasma (1695.22, 1326.45 and 636.98mg*h/L), the AUC(0-t) in brain (1812.35, 2125.17 and 1145.83ng*h/g) as well as the T1/2 in plasma (0.66, 0.82, 0.97h) and brain (0.96, 1.1, 0.99h) for imperatorin, isoimperatorin and Cnidilin, respectively, suggesting that the three coumarins could easily pass through the BBB in vivo. In the in vitro model we observed high permeability of imperatorin and isoimperatorin with the P-gp-mediated efflux ratios of 0.53 and 0.06, as well as medium permeability of Cnidilin with 0.82.
CONCLUSIONS:
All data suggest that these three coumarins have high BBB permeability and have pharmacokinetic potentials for the treatment of central nervous system diseases.
