Pinusolidic acid
Pinusolidic acid shows a potent inhibitory effect on platelet activating factor (PAF) binding to rabbit platelets (IC50 = 2.3 x 10(-5) M, 7.48 +/- 2.11 micrograms/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.
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. 1998 Feb;64(1):72-4.
Pinusolidic acid: a platelet-activating factor inhibitor from Biota orientalis.[Pubmed:
9491770 ]
METHODS AND RESULTS:
The water extract of Biota orientalis showed a potent inhibitory effect on platelet activating factor (PAF) binding to rabbit platelets using [3H]PAF as a ligand in our previous screening studies for Korean medicinal antagonists by the activity-guided purification studies. Another active compound, compound 1 (IC50 = 2.3 x 10(-5) M, 7.48 +/- 2.11 micrograms/ml, n = 4) was isolated from the title plant.
CONCLUSIONS:
The chemical structure of compound 1 was elucidated as Pinusolidic acid by chemical and spectrometric analyses.
J Nat Prod. 2006 Apr;69(4):689-91.
Neuroprotective diterpenes from the fruiting body of Antrodia camphorata.[Pubmed:
16643055]
METHODS AND RESULTS:
Three new compounds, 19-hydroxylabda-8(17)-en-16,15-olide (1), 3beta,19-dihydroxylabda-8(17),11E-dien-16,15-olide (2), and 13-epi-3beta,19-dihydroxylabda-8(17),11E-dien-16,15-olide (3), together with four known compounds, 19-hydroxylabda-8(17),13-dien-16,15-olide (4), 14-deoxy-11,12-didehydroandrographolide (5), 14-deoxyandrographolide, and Pinusolidic acid, were isolated from the fruiting bodies of Antrodia camphorata. The structures of compounds 1-3 were elucidated by the analysis of their spectroscopic data.
CONCLUSIONS:
The in vitro neuroprotective activity of all compounds was evaluated, and compounds 1-5 protected neurons from Abeta damage by 39.2, 35.0, 36.7, 30.6, and 27.0%, respectively, at concentrations between 5 and 20 microM.
