• Korean Journal of Food Science and Technology
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• v.51 no.5
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• pp.503-508
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• 2019

To evaluate the protective effect of Ecklonia cava on ultra-fine dust ($PM_{2.5}$)-induced cytotoxicity, we investigated the in vitro antioxidant activity and cell viability after exposure to $PM_{2.5}$. E. cava was extracted using water and 80% ethanol, and antioxidant activity was determined using the 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS)/2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging and lipid peroxidation inhibition assays. The 80% ethanol extract showed relatively higher antioxidant activity than the water extract. The cell protective effects were determined by measuring the intracellular reactive oxygen species (ROS) content and viability of nasal epithelial (RPMI-2650), lung epithelial (A549), and brain neuroblastoma (MC-IXC) cells. Results showed that the 80% ethanol extract inhibited ROS production more than the water extract. In contrast, both extracts showed similar effects on cell viability in the $PM_{2.5}$-induced cell death assay. Thus, Ecklonia cava may act as an effective resource for preventing $PM_{2.5}$-induced cytotoxicity in nasal, lung, and brain cells.

• Journal of Life Science
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• v.32 no.5
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• pp.375-390
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• 2022

Influenza viruses are zoonotic respiratory pathogens, and influenza infections have caused a substantial burden on public health systems and the livestock industry. Although currently approved seasonal influenza vaccines have shown potent protection efficacy against antigenically well-matched strains, there are considerable unmet needs for the efficient control of viral infections. Enormous efforts have been made to develop broadly protective universal influenza vaccines to tackle the huge levels of genetic diversity and variability of influenza viruses. In addition, antiviral drugs have been considered important interventions for the treatment of viral infections. The viral neuraminidase inhibitor oseltamivir is the most widely used antiviral medication to treat influenza A and influenza B viruses. However, unsatisfactory clinical outcomes resulting from side effects and the emergence of resistant variants have led to greater attention being paid to plants as a natural resource for anti-influenza drugs. In particular, the recent COVID-19 pandemic has underpinned the need for safe and effective antiviral drugs with a broad spectrum of antiviral activity to prevent the rapid spread of viruses among humans. This review outlines the results of the antiviral activities of various natural products isolated from plants against influenza viruses. Special focus is paid to the virucidal effects and the immune-enhancing effects of antiviral natural products, since the products have broad applications as inactivating agents for the preparation of inactivated vaccines and vaccine adjuvants.

• Bioinformatics and Biosystems
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• v.2 no.2
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• pp.66-70
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• 2007

과거 사회라는 개념 속에서의 관찰과 통계적 인과관계의 규명에 치중하여 이루어졌던 보건학 연구는 유전체 연구와 같은 증거 위주의 기초과학적 측면에서 이루어 지고 있는 것이 현재의 추세이다. 이러한 생물학적 데이터를 이용한 질병과 보건에 대한 연구가 활성화 됨에 따라 보건 분야에서도 컴퓨터를 이용하여 방대한 정보를 다룰 수 있는 생명정보학이 유용한 도구로서 인식되고 있다. 본고에서는 생명정보학이 보건학의 연구분야에서 어떻게 이용되는 가를 학술적인 의미에서 살펴보고 그 활용방안에 대해 논의해 보고자 한다.

• 축산식품과학과 산업
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• v.11 no.2
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• pp.45-53
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• 2022

• 방재와보험
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• s.143
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• pp.54-55
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• 2011

KFPA는 화재안전점검을 실시한 특수건물 중에서 화재위험도가 매우 낮고 안전관리가 우수한 건물에 대하여 "KFPA 화재안전 우수건물 인정패"를 건물 입구에 부착하는 "KFPA 화재안전 우수건물 인정제도"를 2011년 6월부터 실시하고 있다. 이번 호에서는 (주)한화63시티의 체계적인 관리를 통해 화재안전 우수건물로 선정된 대한생명 부산사옥을 방문하여 안창발 소장을 만나보았다.

• Korean Journal of Food Science and Technology
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• v.53 no.2
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• pp.223-229
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• 2021

To evaluate the protective effect of Codium fragile on fine dust (PM2.5)-induced cytotoxicity, we investigated its antioxidant activity and cell protective effect on PM2.5-exposed cells. The 40% ethanolic extract of C. fragile showed the highest total phenolic content, whereas the water extract of C. fragile showed the highest total polysaccharide content. The protective effect of the extracts on PM2.5-induced oxidative damage in nasal cavity (RPMI2650), lung (A549), brain (MC-IXC), hippocampus (HT-22), and microglia (BV-2) cells was evaluated by measuring the intracellular reactive oxygen species (ROS) content and cell viability. The results showed that the 40% ethanolic extract more efficiently inhibited ROS production than the water extract. In contrast, PM2.5-exposed cells treated with the water extract showed higher viability than those treated with the 40% ethanolic extract.

• Proceedings of the Korean Society of Life Science Conference
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• 2005.09a
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• pp.76-76
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• 2005

• Bioindustry News
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• v.15 no.3
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• pp.14-15
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• 2002

• Bioindustry News
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• v.15 no.2
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• pp.16-18
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• 2002

• Proceedings of the Korean Society of Life Science Conference
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• 2003.05a
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• pp.125-126
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• 2003