• Journal of Physiology & Pathology in Korean Medicine
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• v.18 no.5
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• pp.1309-1316
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• 2004

We previously reported that the ethtyl acetate(EA) soluble fraction of Sophorae Radix(SR) water extract had the preventive effects against cardiovascular anaphylaxis elicited in experimental animals. In this study, we tested the anti-anaphylatic effects of the nine kinds of EA soluble subfractions in animal models such as Langendorff heart and anesthetized rats. These results were obtained as followed ; Among nine kinds of SR EA soluble subfractions, N10-16-2 and N10-16-9 fractions have an effects improving cardiovascular anaphylaxis in guinea pig Langendorff hearts. In passively anesthetized rats, N10-16-2 and N1 0-16-9 fractions of SR EA soluble subfractions have an effects improving cardiovascular anaphylaxis. N10-16-2 and N1 0-16-9 fractions of SR EA soluble subfractions inhibited the decrease of histamine release induced by compound 48180 and A-23187 in rat peritoneal mast cells. These results suggest that N10-16-2 and N10-16-9 fractions of SR EA soluble subfractions involve anti-anaphylactic molecules in cardiovascular system.

• Journal of the Korean Applied Science and Technology
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• v.34 no.2
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• pp.236-243
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• 2017

In the present study, 70% ethanol extract, the ethyl acetate fraction were prepared from citron (Citrus junos)seed and their antioxidative ability was evaluated. The yields of extract and fractions were 5.1 and 0.9% per dried powder, respectively. In the 1,1-Phenyl-2-picrylhydrazyl (DPPH) radical test, free radical scavenging activities ($FSC_{50}$) of 70 % ethanol extract, ethyl acetate fraction were 512.1 and $514.0{\mu}g/mL$, respectively. Evaluation of total antioxidant capacities ($OSC_{50}$) using $Fe^{3+}$-EDTA system. Their $OSC_{50}$ of ethyl acetate fraction were $86.5{\mu}g/mL$. this antioxidant capacities higher than that of 70% ethanol extract. but lower than that of L-ascorbic acid ($1.72{\mu}g/mL$), known as a prominent water soluble antioxidant. The cellular protective effects on the $^1O_2$-induced cellular damage of rabbit erythrocytes were evaluated and the results showed that the extract was lower than (+)-${\alpha}$-tocopherol and low concentration of ethyl acetate fraction was similar to (+)-${\alpha}$-tocopherol. but not at high concentrations of ethtyl acetate fraction. it was able to induce cellular damage at high concentration.