Bavachin significantly inhibits melanin synthesis and TYR activity. Bavachin (10 µM) inhibits the expression of TYR and JNK proteins, and the expression of TYR, TRP-1, TRP-2, ERK1, ERK2 and JNK2 mRNA in A375 cells. ICI182780 and U0126 cAN significantly reverse the bavachin treatment on the protein expression levels and the mRNA expression of TYR, TRP-1, TRP-2, ERK1, ERK2 and JNK2. Bavachin accumulates lipid in a dose dependent manner in ORO staining experiments. Bavachin significantly increases the growth of preadipoctye at 10 µM compared with the control cells in MTT assay. Bavachin also increases BrdU incorporation into newly synthesized DNA during pre-adipocyte proliferation. BrdU incorporation is enhanced by insulin and further enhanced by co-treatment with insulin and bavachin at 2 and 10 µM. Bavachin activates adipogenic factors and increases PPARγ transcriptional activity in differentiated adipocytes. Bavachin enhances insulin-stimulated glucose uptake through GLUT4 translocation via Akt and AMPK pathway. BVN significantly increases both hMAO-A and hMAO-B activities. Bavachin shows ER ligand binding activity in competitive displacement of [3H] E2 from recombinant ER. The estrogenic activity of bavachin is characterized in a transient transfection system using ERα or ERβ and estrogen-responsive luciferase plasmids in CV-1 cells with an EC50 of 320 nM and 680 nM, respectively. Bavachin increases the mRNA levels of estrogen-responsive genes such as pS2 and PR, and decreases the protein level of ERα by proteasomal pathway.
|Cell lines||MCF-7 BOS cells|
|Preparation method||Cells were treated with 10 nM E2, 1 μM tamoxifen and bavachin as indicated for 6 days. The cell growth was determined by using MTT based colorimetric assay.|
|Incubation time||6 days|
|Body Surface Area (m2)||0.007||0.025||0.15||0.05||0.02||0.5|
|Animal A (mg/kg) = Animal B (mg/kg) multiplied by||Animal B Km|
|Animal A Km|
For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.
|Solubility||10 mM in DMSO|
Effects of bavachin and its regulation of melanin synthesis in A375 cells.
Wang JH, et al. Biomed Rep. 2016 Jul;5(1):87-92. PMID: 27347410.
Activation of Estrogen Receptor by Bavachin from Psoralea corylifolia.
Park J, et al, Biomol Ther (Seoul). 2012 Mar;20(2):183-8. PMID: 24116293.
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