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나린게닌의 항균력에 미치는 관련 후라보노이드의 병용효과
한성순(Seong Sun Han),이종길(Chong Kil Lee),김영소(Young Soe Kim) 대한약학회 1992 약학회지 Vol.36 No.5
As part of our search for less toxic antimicrobial substances from natural resources, naringin was isolated from feels of Citri fructus and then hydrolyzed to naringenin. The antimicrobial activity of naringenin was examined by measuring the minimal inhibitory concentration(MIC) against fourteen species of bacteria. The antimicrobial activity of naringenin in combination with rutin or hesperetin was evaluated by checkerboard method. Among fourteen species tested, the antimicrobial activity of naringenin was the most prominant against Staphylococcus aureus and Shigella boydii showing MIC of 100mcg/ml for both species. Combinations of naringenin with rutin or hesperetin showed synergism against several species of bacteria, but no antagonism was observed.
Lespedeza maximowiczii엽의 풀라보노이드 성분 연구(Ⅰ)
한성순(Seong Sun Han) 한국생약학회 1976 생약학회지 Vol.7 No.3
To identify eriodictyol from the leaves of Lespedeza maximowiczii C.K. SCHNEIDER, growing in Korea, the fresh leaves collected at Mt. Chil Bo, Geong Gi Province were used in the investigation. A white crystal was isolated from the water extract and it was identified as eriodictyol by its melting point. physico-chemical properties, thin layer chromatographe and infrared absorption spectrum patterns.
천연 Quercetin의 항허피스바이러스작용과 Nucleoside계 항허피스바이러스제와의 병용효과
김영소,한성순,Kim, Young-So,Han, Seong-Sun 한국생약학회 1999 생약학회지 Vol.30 No.2
In order to find less toxic antiherpetic agents, the effect of natural quercetin on the plaque formation of herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) was studied in vitro in cell culture monolayers employing the technique of viral plaque reduction assay. Quercetin caused a concentration-dependent reduction in the plaque formation of herpesviruses. It also exhibited more potent antiherpetic activity on HSV-1 with effective concentration $(EC_{50})$ of $18.7\;{\mu}g/ml$ than on HSV-2 with $EC_{50}$ of $24.5\;{\mu}g/ml$. The combined antiherpetic effects of quercetin with nucleoside antiherpetic agents, acyclovir and vidarabine, were examined on the multiplication of these two strains of herpesviruses in Vero cells by the combination assay. The results of combination assay were evaluated by the combination index (CI) that was calculated by the multiple drug effect analysis. The combinations of quercetin with acyclovir on HSV-1 and HSV-2 showed more potent synergism with CI values of $0.19{\sim}0.89$ for 50%, 70%, 90% effective levels than those with vidarabine with CI values of $0.43{\sim}1.46$.
잔나비걸상버섯 수용성물질의 항인플루엔자바이러스 작용과 인터페론과의 병용효과
정선식(Sun Sik Jeong),어성국(Seong Kug Eo),김영소(Young So Kim),한성순(Seong Sun Han) 대한약학회 1999 약학회지 Vol.43 No.4
EA. the water soluble substance, was prepared from the carpophores of Elfvingia applanata(Pers.) Karst. Anti-influenza A virus (anti-Flu A) activity of EA was examined in Vero cells by plaque reduction assay in vitro. And the combined antiviral effects of EA with interferon (IFN) alpha and gamma were examined on the multiplication of Flu A. EA showed a concentration-dependent reduction in the plaque formation of Flu A with 50% effective concentration (EC50) of 1.50mg/ml. The results of combination assay were evaluated by the combination index (CI) that was analysed by the multiple drug effect analysis. The combination of EA with IFN alpha on Flu A showed more potent synergism with CI values of 0.50~0.52 of 50%, 70%, 90% effective levels than that with IFN gamma with CI values of 0.82~0.99.
잔나비걸상 수용성 물질의 Vesicular Stomatitis Virus (Indiana Serotype)에 대한 항바이러스작용과 Interferon과의 병용효과
김영소,어성국,한성순,Kim, Young-So,Eo, Seong-Kug,Han, Seong-Sun 한국생약학회 1999 생약학회지 Vol.30 No.3
In order to find less toxic antiviral agents from Basidiomycetes, EA, the water soluble substance, was prepared from the carpophores of Elfvingia applanata(Pers.) Karst. Antiviral activity of EA against vesicular stomatitis virus [Indiana serotype, VSV(IND)] was examined in Vero cells using plaque reduction assay in vitro. And the combined antiviral effects of EA with interferon (IFN) alpha or gamma were examined on the multiplication of VSV(IND). EA caused a concentration-dependent reduction in the plaque formation of VSV(IND) with 50% effective concentration $(EC_{50})$ of $104.02\;{\mu}g/ml$. The results of combination assay were evaluated by the combination index (CI) that was analysed by the multiple drug effect analysis. All cases of the combination of EA with IFN alpha or IFN gamma showed potent synergism with CI values of $0.38{\sim}0.52$ for $50{\sim}90%$ effective levels.
천연 Hesperetin의 항허피스바이러스작용과 Acyclovir 및 Vidarabine과의 병용효과
이지현,어성국,김영소,이종길,한성순,Lee, Ji-Hyun,Eo, Seong-Kug,Kim, Young-So,Lee, Chong-Kil,Han, Seong-Sun 한국생약학회 1999 생약학회지 Vol.30 No.1
To search for less toxic antiherpetic agents, the inhibitory effects of natural hesperetin on the plaque formation of herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) in Vero cells were examined by the plaque reduction assay in vitro. Hesperetin inhibited plaque formations of HSV-1 and HSV-2 in a dose dependent manner. It also exhibited more potent antiherpetic activity on HSV-2 with selectivity index (SI) of 9.8 than on HSV-1 with SI of 8.4. The combined antiherpetic effects of hesperetin with nucleoside antiherpetic agents, acyclovir and vidarabine, were examined on the multiplication of these two strains of herpesviruses in Vero cells by the combination assay. The results of combination assay were evaluated by the combination index (CI) that was calculated by the multiple drug effect analysis. The combinations of hesperetin with acyclovir on HSV-1 and HSV-2 showed synergistic effects with CI values of $0.29{\sim}0.73$ for 50%, 70%, 90% effective levels and those with vidarabine showed partially synergistic or additive effects with CI values of $0.83{\sim}1.33$.
이지현,김영소,이종길,이혁구,한성순,Lee, Ji-Hyun,Kim, Young-So,Lee, Chong-Kil,Lee, Hyuk-Koo,Han, Seong-Sun 한국생약학회 1999 생약학회지 Vol.30 No.1
To search for less toxic antiherpetic agents, the inhibitory effects of twelve kinds of flavonoids including chrysin, quercetin, quercitrin, rutin, fisetin, gossypin, kaempferol, morin, naringenin, naringin, hesperetin and hesperidin on the plaque formation of herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) in Vero cells were examined by plaque reduction assay in vitro. Some flavonoids tested in this study showed potent antiherpetic activity, reducing intracellular replication of herpes simplex viruses when Vero cell monolayers were infected and subsequently cultured in medium containing flavonoids. Naringenin showed the most potent antiviral activity against HSV-1 with selectivity index (SI) of 19.1 and hesperetin showed the most potent antiviral activity against HSV-2 with SI of 9.8. These results suggest that some flavonoids may be a potential therapeutic agent for the treatment and prevention of herpes simplex virus infections.
임교환,어성국,김영소,이종길,한성순,Rym, Kyo-Hwan,Eo, Seong-Kug,Kim, Young-So,Lee, Chong-Kil,Han, Seong-Sun 한국생약학회 1999 생약학회지 Vol.30 No.1
In order to find less toxic antiviral agents from basidiomycetes, EA, the water soluble substance, was prepared from the carpophores of Elfvingia applanata (Pers.) Karst. EA was examined for antiviral activity against five strains of pathogenic viruses such as encephalomyocarditis virus (EMCV), vesicular stomatitis virus (VSV) Indiana and New Jersey strains, influenza A virus (Flu A), and varicella zoster virus (VZV) in vitro. Antiviral activity was evaluated by plaque reduction assay. Among five strains of viruses tested, EA exhibited the most potent antiviral activity against VSV Indiana strain with 50% effective concentration $(EC_{50})$ of 0.104 mg/ml in Vero cells, and its selectivity index (SI) was 36.5. EA was also examined for the virucidal activity, antiviral activity in preincubation on VSV Indiana strain in order to examine possible mode of antiviral activity. Preincubation of Vero cells with EA did not confer protection against VSV, however, prolonged exposure of cells to EA inhibited the replication of virus dose-dependently. In virucidal activity, the titer of infectious virus did not decrease significantly.