|Source:||The dry leaves of Haplophyllum perforatum Kar.et Kir.|
|Biological Activity or Inhibitors:||1. Eudesmin shows antiinflammatory effects, it can significantly inhibit TNF-alpha production by lipopolysaccharide (LPS)-stimulated murine macrophage RAW264.7 without displaying cytotoxicity, and can significantly attenuate T cell proliferation stimulated by concanavalin A (Con A) in a dose-dependent manner.
2. Eudesmin can induce vascular relaxation in rat aorta, which is mediated by release of nitric oxide and prostanoid through the involvement of histamine receptor present in the endothelial cells.
3.(+)-Eudesmin has neuritogenic activity, 50 microM (+)-eudesmin can induce neurite outgrowth and enhance nerve growth factor (NGF)-mediated neurite outgrowth from PC12 cells by stimulating up-stream MAPK, PKC and PKA pathways.
4. Eudesmin has significant anticonvulsant and sedative effects, and the mechanism of eudesmin may be related to up-regulation of GABAA and GAD65 expressions, and anti-apoptosis of neuron the in brain.
|Solvent:||Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.|
|Storage:||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: email@example.com
|After receiving:||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.|
|1 mg||5 mg||10 mg||20 mg||25 mg|
|1 mM||2.588 mL||12.94 mL||25.8799 mL||51.7598 mL||64.6998 mL|
|5 mM||0.5176 mL||2.588 mL||5.176 mL||10.352 mL||12.94 mL|
|10 mM||0.2588 mL||1.294 mL||2.588 mL||5.176 mL||6.47 mL|
|50 mM||0.0518 mL||0.2588 mL||0.5176 mL||1.0352 mL||1.294 mL|
|100 mM||0.0259 mL||0.1294 mL||0.2588 mL||0.5176 mL||0.647 mL|
Arch Pharm Res. 1999 Aug;22(4):348-53.
|Eudesmin inhibits tumor necrosis factor-alpha production and T cell proliferation.[Pubmed: 10489872]|
|Possible antiinflammatory effects of Eudesmin were examined by assessing the effects on tumor necrosis factor (TNF)-alpha production and lymphocyte proliferation as well as cytotoxicity against murine and human macrophages. The compound significantly inhibited TNF-alpha production by lipopolysaccharide (LPS)-stimulated murine macrophage RAW264.7 without displaying cytotoxicity suggesting that Eudesmin may inhibit TNF-alpha production without any interference of normal cell function. It also significantly attenuated T cell proliferation stimulated by concanavalin A (Con A) in a dose-dependent manner.|
Eur J Pharmacol. 2009 Mar 15;606(1-3):150-4.
|The lignan eudesmin extracted from Piper truncatum induced vascular relaxation via activation of endothelial histamine H1 receptors.[Pubmed: 19374838 ]|
|In Brazilian folk medicine, extracts from Piper species are used to reduce blood pressure. Previously, we demonstrated the vasodilatory activity of crude extracts from leaves of Piper truncatum explaining their possible use in the treatment of hypertension in traditional medicine. In the present study, we investigated the effects of Eudesmin, a lignan isolated from hexane extract of leaves from Piper truncatum, on the contractility of rat aortas and the possible mechanisms involved in its vascular action. Eudesmin induced an intense concentration-dependent relaxation of aortic rings precontracted with phenylephrine. These results indicate that Eudesmin-induced vascular relaxation in rat aorta is mediated by release of nitric oxide and prostanoid through the involvement of histamine receptor present in the endothelial cells.|
Arch Pharm Res. 2006 Dec;29(12):1114-8.
|Effects of (+)-eudesmin from the stem bark of magnolia kobus DC. var. borealis Sarg. on neurite outgrowth in PC12 cells.[Pubmed: 17225460]|
|(+)-Eudesmin [4,8-bis(3,4-dimethoxyphenyl)-3,7-dioxabicyclo[3.3.0]octane] was isolated from the stem bark of Magnolia kobus DC. var. borealis Sarg. and found to have neuritogenic activity. 50 microM (+)-Eudesmin induced neurite outgrowth and enhanced nerve growth factor (NGF)-mediated neurite outgrowth from PC12 cells. At this concentration, (+)-Eudesmin also enhanced NGF-induced neurite-bearing activity and this activity was partially blocked by various protein kinase inhibitors. These included PD98059, a mitogen-activated protein kinase (MAPK) kinase inhibitor. GF109203X, a protein kinase C (PKC) inhibitor and H89, a protein kinase A (PKA) inhibitor. These results suggest that (+)-Eudesmin can induce neurite outgrowth from PC12 cells by stimulating up-stream MAPK, PKC and PKA pathways.|
Phytother Res. 2015 Jul;29(7):996-1003
|Anticonvulsant and Sedative Effects of Eudesmin isolated from Acorus tatarinowii on mice and rats.[Pubmed: 25851178 ]|
|This paper was designed to investigate anticonvulsant and sedative effects of Eudesmin isolated from Acorus tatarinowii. The Eudesmin (5, 10, and 20 mg/kg) was administered intraperitoneally (i.p.). The maximal electroshock test (MES) and pentylenetertrazole (PTZ)-induced seizures in male mice were used to evaluate anticonvulsant activities of Eudesmin, and sedative effects of Eudesmin were evaluated by pentobarbital sodium-induced sleeping time (PST) and locomotor activity in mice. In conclusion, Eudesmin has significant anticonvulsant and sedative effects, and the mechanism of Eudesmin may be related to up-regulation of GABAA and GAD65 expressions, and anti-apoptosis of neuron the in brain.|