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데침 시간에 따른 섬쑥부쟁이의 항산화 활성 및 비타민 B2 함량 변화
윤성란,소보람,박정민,류정아 한국식품저장유통학회 2022 한국식품저장유통학회지 Vol.29 No.7
This study analyzed the changes in total polyphenol and flavonoid contents of Aster glehni based on blanching time and examined the relationships between their contents and antioxidant activities. In addition, vitamin B2 content in green vegetables was determined to use as basic data for the availability of A. glehni. Compared with non-treatment, the total polyphenol and flavonoid contents considerably decreased to 13.05-52.96% and 36.63-81.75%, respectively, with the passage of blanching time (1-5 min). Furthermore, 2,2-diphenyl-1-picrylhydrazyl and 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging abilities considerably decreased with the antioxidant activity. Before blanching, vitamin B2 content in A. glehni was 1.17 mg/100 g of dried sample, and at the blanching time of 3 min, it decreased to 0.60 mg/100 g (less than 50%) of dried sample. Therefore, further research should be conducted on either additives or cooking methods to prevent the leakage of physiologically active substances in the cooking water at the time of blanching A. glehni.
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LPS로 유도된 RAW 264.7 대식세포에서 Argyreia capitata (Vahl) Choisy 추출물의 NF-κB pathway 조절을 통한 항염증 효능 평가
염가희(Ga Hee Yeum),소보람(Bo Ram So),Tran The Bach,엄상미(Sang Mi Eum),정성근(Sung Keun Jung) 한국식품과학회 2020 한국식품과학회지 Vol.52 No.3
우리는 한국생명공학연구원에서 제공한 소재를 탐색 후 ACE를 선별하였고 이 소재의 항염증 효능을 평가하였다. ACE는 세포독성이 없는 농도에서 LPS에 의한 iNOS의 발현과 NO의 생성을 유의적으로 억제하였다. ACE는 LPS에 의해 증가한 IKK, IκB, p65의 인산화와 IL-1β의 생성을 유의적으로 억제하였다. 이 논문은 ACE가 NO/iNOS 발현 및 NF-κB 신호 전달 경로의 억제를 통해 항염증 효능을 나타냄을 밝힌 최초의 논문으로서 의의를 가진다. 또한 이 결과를 바탕으로 ACE는 항염증 기능성식품 또는 의약품소재로써 활용가치가 높을 것으로 기대된다. Argyreia capitata (Vahl) Choisy is a species of the genus Argyreia. Although many studies have analyzed the biological activity of A. nervosa, A. speciasa, and A. acuta, the anti-inflammatory effect of A. capitata extract (ACE) remains unclear. In this study, we evaluated the anti-inflammatory effect of ACE using lipopolysaccharide (LPS)-induced inflammatory markers in RAW 264.7 cells. We confirmed that the ACE inhibited the LPS-induced NO (nitric oxide) and iNOS (inducible nitric oxide synthase) expression in RAW 264.7 cells. ACE suppressed not only the LPS-induced phosphorylation of IKK, IκB, and p65 but also IL-1β expression. Collectively, these results suggest that ACE is a novel anti-inflammatory agent that suppresses iNOS expression, NO production, and the NF-κB signaling pathways.
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RAW 264.7 대식세포에서 청국장 열수 추출물(Cheonggukjang Water Extract, CWE)의 면역 증강 효과
장세현,김 산,김세정,윤성란,소보람,류정아,박정민,정성근 한국응용생명화학회 2023 Journal of Applied Biological Chemistry (J. Appl. Vol.66 No.-
Due to the COVID-19 pandemic, the immuneenhancing health functional food market that protects our bodies from pathogens such as viruses continues to grow. In this study, we aimed to prove the Cheonggukjang, a high-nutrient food with high protein, fat, and dietary fiber content, as an immuneenhancing nutraceutical. Cheonggukjang water extract (CWE) increased the production of nitric oxide, reactive oxygen species, and cytokines such interleukin (IL)-6, IL-1β, and tumor necrosis factor-α without affecting viability in RAW 264.7 cells. Furthermore, CWE significantly upregulated the expression of inducible nitric oxide synthase and cyclooxygenase-2 in RAW 264.7 cells. CWE enhanced the phosphorylation of I kappa B kinase α/β and I kappa B (IκB)α, as well as the degradation of IκBα. CWE also induced increased phosphorylation of nuclear factor-kappa B p65 and facilitated the redistribution of p65 from the cytoplasm to the nucleus in RAW 264.7 cells. These findings suggest that CWE has potential as a health functional food material that can enhance the innate immune response.
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RAW 264.7 대식세포에서 연자육 추출물(Nelumbo nucifera Gaertner Seed Extract, NSE)의 면역 증강 효과
김세정 ( Se Jeong Kim ),김산 ( San Kim ),장세현 ( Se Hyeon Jang ),윤성란 ( Sung Ran Yoon ),소보람 ( Bo Ram So ),박정민 ( Jeong Min Park ),류정아 ( Jung A Ryu ),정성근 ( Sung Keun Jung ) 한국응용생명화학회 2023 Journal of Applied Biological Chemistry (J. Appl. Vol.66 No.-
코로나바이러스-19로 인한 세계적인 펜데믹 이후 면역력 강화 소재에 대한 관심이 급격히 증가하고 있으므로 산업적, 건강적 측면에서 새로운 소재의 개발이 필요하다. 본 연구에서는 연자육 추출물을 소재로 선정하고 RAW 264.7 쥐 대식세포를 이용하여 면역증진 효과를 평가하였다. 연자육 추출물은 RAW 264.7 세포에서 세포 생존력에 독성을 나타내지 않으면서 nitric oxide 및 reactive oxygen species의 생산을 상향 조절하였다. 또한 연자육 추출물은 RAW 264.7 세포에서 inducible nitric oxide synthase 및 cyclooxygenase-2 발현을 크게 증가시켰다. Enzyme-linked immunosorbent assay 결과에서는 연자육 추출물의 처리가 RAW 264.7 세포에서 interleukin 6 및 tumor necrosis factor-α의 생성을 유의미하게 향상시키는 것으로 나타났다. 또한 연자육 추출물이 p65, I kappa B kinase α/β, 및 I kappa B (IκB) α의 인산화를 크게 상향 조절하고, RAW 264.7 세포에서 IκB α의 발현을 하향 조절하였다. 우리의 연구 결과는 연자육 추출물이 Nuclear factor-kappa B 신호전달 경로를 통해 면역력을 향상시킬 수 있는 잠재적인 건강기능식품 소재가 될 수 있음을 나타낸다. Since the global shock caused by COVID-19, interest in immune-enhancing materials is rapidly increasing, therefore, the development of novel materials is necessary from the industrial and health perspectives. In this study, we selected Nelumbo nucifera Gaertner Seed Extract (NSE) and evaluated immune enhancement effect by using RAW 264.7 murine macrophage cells. NSE significantly up-regulated production of nitric oxide and reactive oxygen species without affecting cell viability in RAW 264.7 cells. Additionally, NSE exhibited an increase of inducible nitric oxide synthase and cyclooxygenase-2 expression in RAW 264.7 cells. The enzyme-linked immunesorbent assay results showed that NSE-treatment significantly enhanced production of interleukin 6 and tumor necrosis factor-α in RAW 264.7 cells. Furthermore, we observed that NSE significantly up-regulated phosphorylation of p65, I kappa B kinase α/β, and I kappa B (IκB) α as well as down-regulation of IκB α expression in RAW 264.7 cells. Our findings indicate that NSE could be the potential health-functional food material with capacity of improving immunity via Nuclear factor-kappa B signaling pathway.
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