Euparin

Biological Activity

Euparin, a monomeric compound of Benzofuran, is a reactive oxygen species (ROS) inhibitor, which exhibits a moderate antioxidant activity, it also exhibits antifungal activity against Trichophyton mentagrophytes. Euparin shows antiviral activity against poliovirus types 1, 2, and 3 with EC50 values of 0.47 µg/mL, 0.12 µg/mL, and 0.15 µg/mL respectively in Vero cells.

In vivo, Euparin (8, 16 and 32 mg/kg) reduces depression-like behavior in Chronic Unpredictable Mild Stress (CUMS) model of mice. All doses of Euparin are found to increase the contents of monoamine neurotransmitter and decrease monoamine oxidase and reactive oxygen species (ROS) levels in brain of depression mice. Euparin restores CUMS-induced decrease of Spermidine/Spermine N1-Acetyltransferase 1 (SAT1), N-methyl-D-aspartate receptor subtype 2B (NMDAR2B) and brain derived neurotrophic factor (BDNF) expression.

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)

Species	Mouse	Rat	Rabbit	Guinea pig	Hamster	Dog
Weight (kg)	0.02	0.15	1.8	0.4	0.08	10
Body Surface Area (m2)	0.007	0.025	0.15	0.05	0.02	0.5
Km factor	3	6	12	8	5	20

Animal A (mg/kg) = Animal B (mg/kg) multiplied by	Animal B Km
	Animal A Km

For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the K_m factor for a mouse and then divide by the K_m factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.

Chemical Information

References

[1] Xu-Meng Han, et al. Biol Pharm Bull. Antidepressant Activity of Euparin: Involvement of Monoaminergic Neurotransmitters and SAT1/NMDAR2B/BDNF Signal Pathway

[2] Elham Ezzatzadeh, et al. Nat Prod Res. Green synthesis and antioxidant activity of novel series of benzofurans from euparin extracted of Petasites hybridus

[3] Maria Florencia Visintini Jaime, et al. Evid Based Complement Alternat Med. Antipoliovirus Activity of the Organic Extract of Eupatorium buniifolium: Isolation of Euparin as an Active Compound